[ismrmrd] 244/281: Further work on XML library
Ghislain Vaillant
ghisvail-guest at moszumanska.debian.org
Wed Jan 14 20:01:20 UTC 2015
This is an automated email from the git hooks/post-receive script.
ghisvail-guest pushed a commit to annotated tag ismrmrd0.5
in repository ismrmrd.
commit 1da272edc622b731b4fd0fdc2cecd30f409ddd9d
Author: Michael S. Hansen <michael.hansen at nih.gov>
Date: Thu Jul 31 16:33:25 2014 -0400
Further work on XML library
---
xml/CMakeLists.txt | 1 +
xml/ismrmrd_xml.cpp | 91 -
xml/ismrmrd_xml.h | 213 +-
xml/pugiconfig.hpp | 72 +
xml/pugixml.cpp | 10639 ++++++++++++++++++++++++++++++++++++++++++++++++++
xml/pugixml.hpp | 1332 +++++++
6 files changed, 12215 insertions(+), 133 deletions(-)
diff --git a/xml/CMakeLists.txt b/xml/CMakeLists.txt
index c4ac4cc..a29b4b6 100644
--- a/xml/CMakeLists.txt
+++ b/xml/CMakeLists.txt
@@ -1,6 +1,7 @@
add_library(ismrmrd_xml SHARED
ismrmrd_xml.h
ismrmrd_xml.cpp
+ pugixml.cpp
)
install (FILES ismrmrd_xml.h
diff --git a/xml/ismrmrd_xml.cpp b/xml/ismrmrd_xml.cpp
index 2dcd20a..1d979ff 100644
--- a/xml/ismrmrd_xml.cpp
+++ b/xml/ismrmrd_xml.cpp
@@ -1,99 +1,8 @@
#include "ismrmrd_xml.h"
-#include <new> //For std::badalloc
-#include <stdexcept> //For std::length_error
-#include <stdio.h>
-#include <string.h>
-#include <iostream>
-
namespace ISMRMRD
{
- IsmrmrdXmlString::IsmrmrdXmlString()
- : string_(0)
- , strlen_(0)
- {
-
- }
-
- IsmrmrdXmlString::IsmrmrdXmlString(const char* s)
- {
- strlen_ = strlen(s);
- allocate(strlen_);
- copy_string(s,strlen_);
- }
-
- IsmrmrdXmlString::IsmrmrdXmlString(const char* s, size_t length)
- {
- strlen_ = length;
- allocate(strlen_);
- copy_string(s,strlen_);
- }
-
- IsmrmrdXmlString::~IsmrmrdXmlString()
- {
- if (string_) delete [] string_;
- }
-
- IsmrmrdXmlString::IsmrmrdXmlString(const IsmrmrdXmlString& s)
- {
- allocate(s.strlen_);
- strlen_ = s.strlen_;
- copy_string(s.string_,strlen_);
- }
-
- IsmrmrdXmlString& IsmrmrdXmlString::operator=(const IsmrmrdXmlString& s)
- {
- allocate(s.strlen_);
- strlen_ = s.strlen_;
- copy_string(s.string_,strlen_);
- }
-
-
- const char* IsmrmrdXmlString::c_str() {
- return string_;
- }
-
- void IsmrmrdXmlString::set(const char* s)
- {
- size_t len = strlen(s);
- set(s,len);
- }
-
- void IsmrmrdXmlString::set(const char* s, size_t len)
- {
- allocate(len);
- strlen_ = len;
- copy_string(s,len);
- }
-
- size_t IsmrmrdXmlString::size()
- {
- return strlen_;
- }
-
- void IsmrmrdXmlString::allocate(size_t len)
- {
- if (len != strlen_) {
- if (string_) delete [] string_;
- try {
- string_ = new char[len+1];
- } catch (std::bad_alloc&) {
- std::cout << "Error allocating memory in IsmrmrdXmlString" << std::endl;
- throw;
- }
- }
- }
-
- void IsmrmrdXmlString::copy_string(const char* s, size_t len)
- {
- if (len > strlen_) {
- throw std::length_error("Invalid length array specified for copy in IsmrmrdXmlString");
- }
- memcpy(string_,s,len);
- string_[len-1] = '\0';
- }
-
}
diff --git a/xml/ismrmrd_xml.h b/xml/ismrmrd_xml.h
index 777e457..395d9e0 100644
--- a/xml/ismrmrd_xml.h
+++ b/xml/ismrmrd_xml.h
@@ -1,90 +1,219 @@
#include "ismrmrd_xml_export.h"
+
#include <cstddef>
+#include <new> //For std::badalloc
+#include <stdexcept> //For std::length_error
+#include <stdio.h>
+#include <string.h>
+#include <iostream>
namespace ISMRMRD
{
+ template <typename T> class Vector
+ {
+
+ public:
+
+ Vector()
+ : v_(0)
+ , len_(0)
+ , siz_(0)
+ {}
+
+ Vector(const T* v, size_t len) {
+ allocate(len);
+ copy(v,len);
+ siz_ = len;
+ }
+
+ Vector(size_t len)
+ : v_(0)
+ , len_(0)
+ , siz_(0)
+ {
+ allocate(len);
+ siz_ = len;
+ }
+
+ Vector(size_t len, const T& val)
+ : Vector()
+ {
+ allocate(len);
+ siz_ = len;
+ for (size_t i = 0; i < siz_; i++) v_[i] = val;
+ }
+
+ //Copy constructor
+ Vector(const Vector& v) {
+ allocate(v.len_);
+ len_ = v.len_;
+ siz_ = v.siz_;
+ copy(v_,v.v_,len_);
+ }
+
+ ///Asignment operator
+ Vector& operator=(const Vector& v) {
+ allocate(v.len_);
+ len_ = v.len_;
+ siz_ = v.siz_;
+ copy(v_,v.v_,len_);
+ }
+
+
+ virtual ~Vector() {
+ if (v_) delete [] v_;
+ }
+
+ void push_back(const T& item) {
+ if ((siz_+1) > len_) {
+ allocate(len_ + 5); //We will grow by 5 items at a time
+ }
+ v_[siz_++] = item; //Copy item to array
+ }
+
+ T& operator[](size_t index) {
+ return v_[index];
+ }
+
+ size_t size() {
+ return siz_;
+ }
+
+ protected:
+ T* v_;
+ size_t len_; ///Allocated length
+ size_t siz_; ///Size of vector
+
+ void allocate(size_t len) {
+ T* tmp_v = v_;
+ if (len != len_) {
+ //Allocate new array
+ try {
+ v_ = new T[len];
+ } catch (std::bad_alloc&) {
+ std::cout << "Error allocating memory in IsmrmrdXmlString" << std::endl;
+ throw;
+ }
+
+ //Copy old content if applicable
+ if (tmp_v) {
+ memcpy(v_, tmp_v, (len < len_ ? len : len_)*sizeof(T));
+ delete [] tmp_v;
+ }
+
+ len_ = len;
+ }
+ }
+
+ void copy(const T* v, size_t len) {
+ if (len > len_) {
+ throw std::length_error("Invalid length array specified for copy in IsmrmrdXmlString");
+ }
+ memcpy(v_,v,len*sizeof(T));
+ }
+
+ };
+
/**
Simple string container class. The class is used for returning string values to avoid using std::string
which can cause problems when exported from a DLL on Windows.
*/
- class EXPORTISMRMRDXML IsmrmrdXmlString
+ class EXPORTISMRMRDXML String : public Vector<char>
{
+ typedef Vector<char> inherited;
+
public:
///Default constructor
- IsmrmrdXmlString();
+ String();
///Construct taking null terminated string
- IsmrmrdXmlString(const char* s);
-
+ String(const char* s)
+ {
+ inherited(s,strlen(s)+1);
+ }
+
///Construct taking length of string as input
- IsmrmrdXmlString(const char* s, size_t length);
-
- ///Destructor
- ~IsmrmrdXmlString();
-
- ///Copy constructor
- IsmrmrdXmlString(const IsmrmrdXmlString& s);
-
- ///Asignment operator
- IsmrmrdXmlString& operator=(const IsmrmrdXmlString& s);
+ String(const char* s, size_t length)
+ {
+ inherited(length+1);
+ copy(s,length);
+ v_[length-1] = '\0';
+ }
///Get a const pointer to the string
- const char* c_str();
+ const char* c_str() {
+ return &v_[0];
+ }
///Set the string
- void set(const char* s);
+ void set(const char* s) {
+ size_t l = strlen(s);
+ allocate(l+1);
+ copy(s,l);
+ v_[len_-1] = '\0';
+ siz_ = len_;
+ }
///Set the string with specified length
- void set(const char* s, size_t len);
+ void set(const char* s, size_t len)
+ {
+ allocate(len+1);
+ copy(s,len);
+ v_[len_-1] = '\0';
+ siz_ = len_;
+ }
///Get the length of the string
- size_t size();
-
-
- protected:
- char* string_;
- size_t strlen_;
-
- void allocate(size_t len);
- void copy_string(const char* s, size_t len);
-
+ size_t size() {
+ return inherited::size()-1;
+ }
};
struct EXPORTISMRMRDXML SubjectInformation
{
- IsmrmrdXmlString patientName;
+ String patientName;
float patientWeight_kg;
- IsmrmrdXmlString patientID;
- IsmrmrdXmlString patientBirthDate;
- IsmrmrdXmlString patientGender;
+ String patientID;
+ String patientBirthDate;
+ String patientGender;
};
struct StudyInformation
{
- IsmrmrdXmlString studyDate;
- IsmrmrdXmlString studyTime;
- IsmrmrdXmlString studyID;
+ String studyDate;
+ String studyTime;
+ String studyID;
long int accessionNumber;
- IsmrmrdXmlString referringPhysicianName;
- IsmrmrdXmlString studyDescription;
+ String referringPhysicianName;
+ String studyDescription;
+ };
+
+ struct MeasurementDependency
+ {
+ String dependencyType;
+ String dependencyID;
};
struct MeasurementInformation
{
- IsmrmrdXmlString measurementID;
- IsmrmrdXmlString seriesDate;
- IsmrmrdXmlString seriesTime;
- IsmrmrdXmlString patientPosition;
+ String measurementID;
+ String seriesDate;
+ String seriesTime;
+ String patientPosition;
long int initialSeriesNumber;
- IsmrmrdXmlString protocolName;
- IsmrmrdXmlString seriesDescription;
+ String protocolName;
+ String seriesDescription;
+ Vector<MeasurementDependency> measurementDepencency;
};
+
+
+
/*
//Should this actually be the name.
//Xml in the name is bad but I wanted to avoid confusion with the AcquisitionHeader
diff --git a/xml/pugiconfig.hpp b/xml/pugiconfig.hpp
new file mode 100644
index 0000000..56f1d22
--- /dev/null
+++ b/xml/pugiconfig.hpp
@@ -0,0 +1,72 @@
+/**
+ * pugixml parser - version 1.4
+ * --------------------------------------------------------
+ * Copyright (C) 2006-2014, by Arseny Kapoulkine (arseny.kapoulkine at gmail.com)
+ * Report bugs and download new versions at http://pugixml.org/
+ *
+ * This library is distributed under the MIT License. See notice at the end
+ * of this file.
+ *
+ * This work is based on the pugxml parser, which is:
+ * Copyright (C) 2003, by Kristen Wegner (kristen at tima.net)
+ */
+
+#ifndef HEADER_PUGICONFIG_HPP
+#define HEADER_PUGICONFIG_HPP
+
+// Uncomment this to enable wchar_t mode
+// #define PUGIXML_WCHAR_MODE
+
+// Uncomment this to disable XPath
+// #define PUGIXML_NO_XPATH
+
+// Uncomment this to disable STL
+// #define PUGIXML_NO_STL
+
+// Uncomment this to disable exceptions
+// #define PUGIXML_NO_EXCEPTIONS
+
+// Set this to control attributes for public classes/functions, i.e.:
+// #define PUGIXML_API __declspec(dllexport) // to export all public symbols from DLL
+// #define PUGIXML_CLASS __declspec(dllimport) // to import all classes from DLL
+// #define PUGIXML_FUNCTION __fastcall // to set calling conventions to all public functions to fastcall
+// In absence of PUGIXML_CLASS/PUGIXML_FUNCTION definitions PUGIXML_API is used instead
+
+// Tune these constants to adjust memory-related behavior
+// #define PUGIXML_MEMORY_PAGE_SIZE 32768
+// #define PUGIXML_MEMORY_OUTPUT_STACK 10240
+// #define PUGIXML_MEMORY_XPATH_PAGE_SIZE 4096
+
+// Uncomment this to switch to header-only version
+// #define PUGIXML_HEADER_ONLY
+// #include "pugixml.cpp"
+
+// Uncomment this to enable long long support
+// #define PUGIXML_HAS_LONG_LONG
+
+#endif
+
+/**
+ * Copyright (c) 2006-2014 Arseny Kapoulkine
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
diff --git a/xml/pugixml.cpp b/xml/pugixml.cpp
new file mode 100644
index 0000000..754f92f
--- /dev/null
+++ b/xml/pugixml.cpp
@@ -0,0 +1,10639 @@
+/**
+ * pugixml parser - version 1.4
+ * --------------------------------------------------------
+ * Copyright (C) 2006-2014, by Arseny Kapoulkine (arseny.kapoulkine at gmail.com)
+ * Report bugs and download new versions at http://pugixml.org/
+ *
+ * This library is distributed under the MIT License. See notice at the end
+ * of this file.
+ *
+ * This work is based on the pugxml parser, which is:
+ * Copyright (C) 2003, by Kristen Wegner (kristen at tima.net)
+ */
+
+#ifndef SOURCE_PUGIXML_CPP
+#define SOURCE_PUGIXML_CPP
+
+#include "pugixml.hpp"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#ifdef PUGIXML_WCHAR_MODE
+# include <wchar.h>
+#endif
+
+#ifndef PUGIXML_NO_XPATH
+# include <math.h>
+# include <float.h>
+# ifdef PUGIXML_NO_EXCEPTIONS
+# include <setjmp.h>
+# endif
+#endif
+
+#ifndef PUGIXML_NO_STL
+# include <istream>
+# include <ostream>
+# include <string>
+#endif
+
+// For placement new
+#include <new>
+
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable: 4127) // conditional expression is constant
+# pragma warning(disable: 4324) // structure was padded due to __declspec(align())
+# pragma warning(disable: 4611) // interaction between '_setjmp' and C++ object destruction is non-portable
+# pragma warning(disable: 4702) // unreachable code
+# pragma warning(disable: 4996) // this function or variable may be unsafe
+# pragma warning(disable: 4793) // function compiled as native: presence of '_setjmp' makes a function unmanaged
+#endif
+
+#ifdef __INTEL_COMPILER
+# pragma warning(disable: 177) // function was declared but never referenced
+# pragma warning(disable: 279) // controlling expression is constant
+# pragma warning(disable: 1478 1786) // function was declared "deprecated"
+# pragma warning(disable: 1684) // conversion from pointer to same-sized integral type
+#endif
+
+#if defined(__BORLANDC__) && defined(PUGIXML_HEADER_ONLY)
+# pragma warn -8080 // symbol is declared but never used; disabling this inside push/pop bracket does not make the warning go away
+#endif
+
+#ifdef __BORLANDC__
+# pragma option push
+# pragma warn -8008 // condition is always false
+# pragma warn -8066 // unreachable code
+#endif
+
+#ifdef __SNC__
+// Using diag_push/diag_pop does not disable the warnings inside templates due to a compiler bug
+# pragma diag_suppress=178 // function was declared but never referenced
+# pragma diag_suppress=237 // controlling expression is constant
+#endif
+
+// Inlining controls
+#if defined(_MSC_VER) && _MSC_VER >= 1300
+# define PUGI__NO_INLINE __declspec(noinline)
+#elif defined(__GNUC__)
+# define PUGI__NO_INLINE __attribute__((noinline))
+#else
+# define PUGI__NO_INLINE
+#endif
+
+// Simple static assertion
+#define PUGI__STATIC_ASSERT(cond) { static const char condition_failed[(cond) ? 1 : -1] = {0}; (void)condition_failed[0]; }
+
+// Digital Mars C++ bug workaround for passing char loaded from memory via stack
+#ifdef __DMC__
+# define PUGI__DMC_VOLATILE volatile
+#else
+# define PUGI__DMC_VOLATILE
+#endif
+
+// Borland C++ bug workaround for not defining ::memcpy depending on header include order (can't always use std::memcpy because some compilers don't have it at all)
+#if defined(__BORLANDC__) && !defined(__MEM_H_USING_LIST)
+using std::memcpy;
+using std::memmove;
+#endif
+
+// In some environments MSVC is a compiler but the CRT lacks certain MSVC-specific features
+#if defined(_MSC_VER) && !defined(__S3E__)
+# define PUGI__MSVC_CRT_VERSION _MSC_VER
+#endif
+
+#ifdef PUGIXML_HEADER_ONLY
+# define PUGI__NS_BEGIN namespace pugi { namespace impl {
+# define PUGI__NS_END } }
+# define PUGI__FN inline
+# define PUGI__FN_NO_INLINE inline
+#else
+# if defined(_MSC_VER) && _MSC_VER < 1300 // MSVC6 seems to have an amusing bug with anonymous namespaces inside namespaces
+# define PUGI__NS_BEGIN namespace pugi { namespace impl {
+# define PUGI__NS_END } }
+# else
+# define PUGI__NS_BEGIN namespace pugi { namespace impl { namespace {
+# define PUGI__NS_END } } }
+# endif
+# define PUGI__FN
+# define PUGI__FN_NO_INLINE PUGI__NO_INLINE
+#endif
+
+// uintptr_t
+#if !defined(_MSC_VER) || _MSC_VER >= 1600
+# include <stdint.h>
+#else
+# ifndef _UINTPTR_T_DEFINED
+// No native uintptr_t in MSVC6 and in some WinCE versions
+typedef size_t uintptr_t;
+#define _UINTPTR_T_DEFINED
+# endif
+PUGI__NS_BEGIN
+ typedef unsigned __int8 uint8_t;
+ typedef unsigned __int16 uint16_t;
+ typedef unsigned __int32 uint32_t;
+PUGI__NS_END
+#endif
+
+// Memory allocation
+PUGI__NS_BEGIN
+ PUGI__FN void* default_allocate(size_t size)
+ {
+ return malloc(size);
+ }
+
+ PUGI__FN void default_deallocate(void* ptr)
+ {
+ free(ptr);
+ }
+
+ template <typename T>
+ struct xml_memory_management_function_storage
+ {
+ static allocation_function allocate;
+ static deallocation_function deallocate;
+ };
+
+ template <typename T> allocation_function xml_memory_management_function_storage<T>::allocate = default_allocate;
+ template <typename T> deallocation_function xml_memory_management_function_storage<T>::deallocate = default_deallocate;
+
+ typedef xml_memory_management_function_storage<int> xml_memory;
+PUGI__NS_END
+
+// String utilities
+PUGI__NS_BEGIN
+ // Get string length
+ PUGI__FN size_t strlength(const char_t* s)
+ {
+ assert(s);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return wcslen(s);
+ #else
+ return strlen(s);
+ #endif
+ }
+
+ // Compare two strings
+ PUGI__FN bool strequal(const char_t* src, const char_t* dst)
+ {
+ assert(src && dst);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return wcscmp(src, dst) == 0;
+ #else
+ return strcmp(src, dst) == 0;
+ #endif
+ }
+
+ // Compare lhs with [rhs_begin, rhs_end)
+ PUGI__FN bool strequalrange(const char_t* lhs, const char_t* rhs, size_t count)
+ {
+ for (size_t i = 0; i < count; ++i)
+ if (lhs[i] != rhs[i])
+ return false;
+
+ return lhs[count] == 0;
+ }
+
+ // Get length of wide string, even if CRT lacks wide character support
+ PUGI__FN size_t strlength_wide(const wchar_t* s)
+ {
+ assert(s);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return wcslen(s);
+ #else
+ const wchar_t* end = s;
+ while (*end) end++;
+ return static_cast<size_t>(end - s);
+ #endif
+ }
+
+#ifdef PUGIXML_WCHAR_MODE
+ // Convert string to wide string, assuming all symbols are ASCII
+ PUGI__FN void widen_ascii(wchar_t* dest, const char* source)
+ {
+ for (const char* i = source; *i; ++i) *dest++ = *i;
+ *dest = 0;
+ }
+#endif
+PUGI__NS_END
+
+#if !defined(PUGIXML_NO_STL) || !defined(PUGIXML_NO_XPATH)
+// auto_ptr-like buffer holder for exception recovery
+PUGI__NS_BEGIN
+ struct buffer_holder
+ {
+ void* data;
+ void (*deleter)(void*);
+
+ buffer_holder(void* data_, void (*deleter_)(void*)): data(data_), deleter(deleter_)
+ {
+ }
+
+ ~buffer_holder()
+ {
+ if (data) deleter(data);
+ }
+
+ void* release()
+ {
+ void* result = data;
+ data = 0;
+ return result;
+ }
+ };
+PUGI__NS_END
+#endif
+
+PUGI__NS_BEGIN
+ static const size_t xml_memory_page_size =
+ #ifdef PUGIXML_MEMORY_PAGE_SIZE
+ PUGIXML_MEMORY_PAGE_SIZE
+ #else
+ 32768
+ #endif
+ ;
+
+ static const uintptr_t xml_memory_page_alignment = 32;
+ static const uintptr_t xml_memory_page_pointer_mask = ~(xml_memory_page_alignment - 1);
+ static const uintptr_t xml_memory_page_name_allocated_mask = 16;
+ static const uintptr_t xml_memory_page_value_allocated_mask = 8;
+ static const uintptr_t xml_memory_page_type_mask = 7;
+
+ struct xml_allocator;
+
+ struct xml_memory_page
+ {
+ static xml_memory_page* construct(void* memory)
+ {
+ if (!memory) return 0; //$ redundant, left for performance
+
+ xml_memory_page* result = static_cast<xml_memory_page*>(memory);
+
+ result->allocator = 0;
+ result->memory = 0;
+ result->prev = 0;
+ result->next = 0;
+ result->busy_size = 0;
+ result->freed_size = 0;
+
+ return result;
+ }
+
+ xml_allocator* allocator;
+
+ void* memory;
+
+ xml_memory_page* prev;
+ xml_memory_page* next;
+
+ size_t busy_size;
+ size_t freed_size;
+
+ char data[1];
+ };
+
+ struct xml_memory_string_header
+ {
+ uint16_t page_offset; // offset from page->data
+ uint16_t full_size; // 0 if string occupies whole page
+ };
+
+ struct xml_allocator
+ {
+ xml_allocator(xml_memory_page* root): _root(root), _busy_size(root->busy_size)
+ {
+ }
+
+ xml_memory_page* allocate_page(size_t data_size)
+ {
+ size_t size = offsetof(xml_memory_page, data) + data_size;
+
+ // allocate block with some alignment, leaving memory for worst-case padding
+ void* memory = xml_memory::allocate(size + xml_memory_page_alignment);
+ if (!memory) return 0;
+
+ // align upwards to page boundary
+ void* page_memory = reinterpret_cast<void*>((reinterpret_cast<uintptr_t>(memory) + (xml_memory_page_alignment - 1)) & ~(xml_memory_page_alignment - 1));
+
+ // prepare page structure
+ xml_memory_page* page = xml_memory_page::construct(page_memory);
+ assert(page);
+
+ page->memory = memory;
+ page->allocator = _root->allocator;
+
+ return page;
+ }
+
+ static void deallocate_page(xml_memory_page* page)
+ {
+ xml_memory::deallocate(page->memory);
+ }
+
+ void* allocate_memory_oob(size_t size, xml_memory_page*& out_page);
+
+ void* allocate_memory(size_t size, xml_memory_page*& out_page)
+ {
+ if (_busy_size + size > xml_memory_page_size) return allocate_memory_oob(size, out_page);
+
+ void* buf = _root->data + _busy_size;
+
+ _busy_size += size;
+
+ out_page = _root;
+
+ return buf;
+ }
+
+ void deallocate_memory(void* ptr, size_t size, xml_memory_page* page)
+ {
+ if (page == _root) page->busy_size = _busy_size;
+
+ assert(ptr >= page->data && ptr < page->data + page->busy_size);
+ (void)!ptr;
+
+ page->freed_size += size;
+ assert(page->freed_size <= page->busy_size);
+
+ if (page->freed_size == page->busy_size)
+ {
+ if (page->next == 0)
+ {
+ assert(_root == page);
+
+ // top page freed, just reset sizes
+ page->busy_size = page->freed_size = 0;
+ _busy_size = 0;
+ }
+ else
+ {
+ assert(_root != page);
+ assert(page->prev);
+
+ // remove from the list
+ page->prev->next = page->next;
+ page->next->prev = page->prev;
+
+ // deallocate
+ deallocate_page(page);
+ }
+ }
+ }
+
+ char_t* allocate_string(size_t length)
+ {
+ // allocate memory for string and header block
+ size_t size = sizeof(xml_memory_string_header) + length * sizeof(char_t);
+
+ // round size up to pointer alignment boundary
+ size_t full_size = (size + (sizeof(void*) - 1)) & ~(sizeof(void*) - 1);
+
+ xml_memory_page* page;
+ xml_memory_string_header* header = static_cast<xml_memory_string_header*>(allocate_memory(full_size, page));
+
+ if (!header) return 0;
+
+ // setup header
+ ptrdiff_t page_offset = reinterpret_cast<char*>(header) - page->data;
+
+ assert(page_offset >= 0 && page_offset < (1 << 16));
+ header->page_offset = static_cast<uint16_t>(page_offset);
+
+ // full_size == 0 for large strings that occupy the whole page
+ assert(full_size < (1 << 16) || (page->busy_size == full_size && page_offset == 0));
+ header->full_size = static_cast<uint16_t>(full_size < (1 << 16) ? full_size : 0);
+
+ // round-trip through void* to avoid 'cast increases required alignment of target type' warning
+ // header is guaranteed a pointer-sized alignment, which should be enough for char_t
+ return static_cast<char_t*>(static_cast<void*>(header + 1));
+ }
+
+ void deallocate_string(char_t* string)
+ {
+ // this function casts pointers through void* to avoid 'cast increases required alignment of target type' warnings
+ // we're guaranteed the proper (pointer-sized) alignment on the input string if it was allocated via allocate_string
+
+ // get header
+ xml_memory_string_header* header = static_cast<xml_memory_string_header*>(static_cast<void*>(string)) - 1;
+
+ // deallocate
+ size_t page_offset = offsetof(xml_memory_page, data) + header->page_offset;
+ xml_memory_page* page = reinterpret_cast<xml_memory_page*>(static_cast<void*>(reinterpret_cast<char*>(header) - page_offset));
+
+ // if full_size == 0 then this string occupies the whole page
+ size_t full_size = header->full_size == 0 ? page->busy_size : header->full_size;
+
+ deallocate_memory(header, full_size, page);
+ }
+
+ xml_memory_page* _root;
+ size_t _busy_size;
+ };
+
+ PUGI__FN_NO_INLINE void* xml_allocator::allocate_memory_oob(size_t size, xml_memory_page*& out_page)
+ {
+ const size_t large_allocation_threshold = xml_memory_page_size / 4;
+
+ xml_memory_page* page = allocate_page(size <= large_allocation_threshold ? xml_memory_page_size : size);
+ out_page = page;
+
+ if (!page) return 0;
+
+ if (size <= large_allocation_threshold)
+ {
+ _root->busy_size = _busy_size;
+
+ // insert page at the end of linked list
+ page->prev = _root;
+ _root->next = page;
+ _root = page;
+
+ _busy_size = size;
+ }
+ else
+ {
+ // insert page before the end of linked list, so that it is deleted as soon as possible
+ // the last page is not deleted even if it's empty (see deallocate_memory)
+ assert(_root->prev);
+
+ page->prev = _root->prev;
+ page->next = _root;
+
+ _root->prev->next = page;
+ _root->prev = page;
+ }
+
+ // allocate inside page
+ page->busy_size = size;
+
+ return page->data;
+ }
+PUGI__NS_END
+
+namespace pugi
+{
+ /// A 'name=value' XML attribute structure.
+ struct xml_attribute_struct
+ {
+ /// Default ctor
+ xml_attribute_struct(impl::xml_memory_page* page): header(reinterpret_cast<uintptr_t>(page)), name(0), value(0), prev_attribute_c(0), next_attribute(0)
+ {
+ }
+
+ uintptr_t header;
+
+ char_t* name; ///< Pointer to attribute name.
+ char_t* value; ///< Pointer to attribute value.
+
+ xml_attribute_struct* prev_attribute_c; ///< Previous attribute (cyclic list)
+ xml_attribute_struct* next_attribute; ///< Next attribute
+ };
+
+ /// An XML document tree node.
+ struct xml_node_struct
+ {
+ /// Default ctor
+ /// \param type - node type
+ xml_node_struct(impl::xml_memory_page* page, xml_node_type type): header(reinterpret_cast<uintptr_t>(page) | (type - 1)), parent(0), name(0), value(0), first_child(0), prev_sibling_c(0), next_sibling(0), first_attribute(0)
+ {
+ }
+
+ uintptr_t header;
+
+ xml_node_struct* parent; ///< Pointer to parent
+
+ char_t* name; ///< Pointer to element name.
+ char_t* value; ///< Pointer to any associated string data.
+
+ xml_node_struct* first_child; ///< First child
+
+ xml_node_struct* prev_sibling_c; ///< Left brother (cyclic list)
+ xml_node_struct* next_sibling; ///< Right brother
+
+ xml_attribute_struct* first_attribute; ///< First attribute
+ };
+}
+
+PUGI__NS_BEGIN
+ struct xml_extra_buffer
+ {
+ char_t* buffer;
+ xml_extra_buffer* next;
+ };
+
+ struct xml_document_struct: public xml_node_struct, public xml_allocator
+ {
+ xml_document_struct(xml_memory_page* page): xml_node_struct(page, node_document), xml_allocator(page), buffer(0), extra_buffers(0)
+ {
+ }
+
+ const char_t* buffer;
+
+ xml_extra_buffer* extra_buffers;
+ };
+
+ inline xml_allocator& get_allocator(const xml_node_struct* node)
+ {
+ assert(node);
+
+ return *reinterpret_cast<xml_memory_page*>(node->header & xml_memory_page_pointer_mask)->allocator;
+ }
+PUGI__NS_END
+
+// Low-level DOM operations
+PUGI__NS_BEGIN
+ inline xml_attribute_struct* allocate_attribute(xml_allocator& alloc)
+ {
+ xml_memory_page* page;
+ void* memory = alloc.allocate_memory(sizeof(xml_attribute_struct), page);
+
+ return new (memory) xml_attribute_struct(page);
+ }
+
+ inline xml_node_struct* allocate_node(xml_allocator& alloc, xml_node_type type)
+ {
+ xml_memory_page* page;
+ void* memory = alloc.allocate_memory(sizeof(xml_node_struct), page);
+
+ return new (memory) xml_node_struct(page, type);
+ }
+
+ inline void destroy_attribute(xml_attribute_struct* a, xml_allocator& alloc)
+ {
+ uintptr_t header = a->header;
+
+ if (header & impl::xml_memory_page_name_allocated_mask) alloc.deallocate_string(a->name);
+ if (header & impl::xml_memory_page_value_allocated_mask) alloc.deallocate_string(a->value);
+
+ alloc.deallocate_memory(a, sizeof(xml_attribute_struct), reinterpret_cast<xml_memory_page*>(header & xml_memory_page_pointer_mask));
+ }
+
+ inline void destroy_node(xml_node_struct* n, xml_allocator& alloc)
+ {
+ uintptr_t header = n->header;
+
+ if (header & impl::xml_memory_page_name_allocated_mask) alloc.deallocate_string(n->name);
+ if (header & impl::xml_memory_page_value_allocated_mask) alloc.deallocate_string(n->value);
+
+ for (xml_attribute_struct* attr = n->first_attribute; attr; )
+ {
+ xml_attribute_struct* next = attr->next_attribute;
+
+ destroy_attribute(attr, alloc);
+
+ attr = next;
+ }
+
+ for (xml_node_struct* child = n->first_child; child; )
+ {
+ xml_node_struct* next = child->next_sibling;
+
+ destroy_node(child, alloc);
+
+ child = next;
+ }
+
+ alloc.deallocate_memory(n, sizeof(xml_node_struct), reinterpret_cast<xml_memory_page*>(header & xml_memory_page_pointer_mask));
+ }
+
+ PUGI__FN_NO_INLINE xml_node_struct* append_node(xml_node_struct* node, xml_allocator& alloc, xml_node_type type = node_element)
+ {
+ xml_node_struct* child = allocate_node(alloc, type);
+ if (!child) return 0;
+
+ child->parent = node;
+
+ xml_node_struct* first_child = node->first_child;
+
+ if (first_child)
+ {
+ xml_node_struct* last_child = first_child->prev_sibling_c;
+
+ last_child->next_sibling = child;
+ child->prev_sibling_c = last_child;
+ first_child->prev_sibling_c = child;
+ }
+ else
+ {
+ node->first_child = child;
+ child->prev_sibling_c = child;
+ }
+
+ return child;
+ }
+
+ PUGI__FN_NO_INLINE xml_attribute_struct* append_attribute_ll(xml_node_struct* node, xml_allocator& alloc)
+ {
+ xml_attribute_struct* a = allocate_attribute(alloc);
+ if (!a) return 0;
+
+ xml_attribute_struct* first_attribute = node->first_attribute;
+
+ if (first_attribute)
+ {
+ xml_attribute_struct* last_attribute = first_attribute->prev_attribute_c;
+
+ last_attribute->next_attribute = a;
+ a->prev_attribute_c = last_attribute;
+ first_attribute->prev_attribute_c = a;
+ }
+ else
+ {
+ node->first_attribute = a;
+ a->prev_attribute_c = a;
+ }
+
+ return a;
+ }
+PUGI__NS_END
+
+// Helper classes for code generation
+PUGI__NS_BEGIN
+ struct opt_false
+ {
+ enum { value = 0 };
+ };
+
+ struct opt_true
+ {
+ enum { value = 1 };
+ };
+PUGI__NS_END
+
+// Unicode utilities
+PUGI__NS_BEGIN
+ inline uint16_t endian_swap(uint16_t value)
+ {
+ return static_cast<uint16_t>(((value & 0xff) << 8) | (value >> 8));
+ }
+
+ inline uint32_t endian_swap(uint32_t value)
+ {
+ return ((value & 0xff) << 24) | ((value & 0xff00) << 8) | ((value & 0xff0000) >> 8) | (value >> 24);
+ }
+
+ struct utf8_counter
+ {
+ typedef size_t value_type;
+
+ static value_type low(value_type result, uint32_t ch)
+ {
+ // U+0000..U+007F
+ if (ch < 0x80) return result + 1;
+ // U+0080..U+07FF
+ else if (ch < 0x800) return result + 2;
+ // U+0800..U+FFFF
+ else return result + 3;
+ }
+
+ static value_type high(value_type result, uint32_t)
+ {
+ // U+10000..U+10FFFF
+ return result + 4;
+ }
+ };
+
+ struct utf8_writer
+ {
+ typedef uint8_t* value_type;
+
+ static value_type low(value_type result, uint32_t ch)
+ {
+ // U+0000..U+007F
+ if (ch < 0x80)
+ {
+ *result = static_cast<uint8_t>(ch);
+ return result + 1;
+ }
+ // U+0080..U+07FF
+ else if (ch < 0x800)
+ {
+ result[0] = static_cast<uint8_t>(0xC0 | (ch >> 6));
+ result[1] = static_cast<uint8_t>(0x80 | (ch & 0x3F));
+ return result + 2;
+ }
+ // U+0800..U+FFFF
+ else
+ {
+ result[0] = static_cast<uint8_t>(0xE0 | (ch >> 12));
+ result[1] = static_cast<uint8_t>(0x80 | ((ch >> 6) & 0x3F));
+ result[2] = static_cast<uint8_t>(0x80 | (ch & 0x3F));
+ return result + 3;
+ }
+ }
+
+ static value_type high(value_type result, uint32_t ch)
+ {
+ // U+10000..U+10FFFF
+ result[0] = static_cast<uint8_t>(0xF0 | (ch >> 18));
+ result[1] = static_cast<uint8_t>(0x80 | ((ch >> 12) & 0x3F));
+ result[2] = static_cast<uint8_t>(0x80 | ((ch >> 6) & 0x3F));
+ result[3] = static_cast<uint8_t>(0x80 | (ch & 0x3F));
+ return result + 4;
+ }
+
+ static value_type any(value_type result, uint32_t ch)
+ {
+ return (ch < 0x10000) ? low(result, ch) : high(result, ch);
+ }
+ };
+
+ struct utf16_counter
+ {
+ typedef size_t value_type;
+
+ static value_type low(value_type result, uint32_t)
+ {
+ return result + 1;
+ }
+
+ static value_type high(value_type result, uint32_t)
+ {
+ return result + 2;
+ }
+ };
+
+ struct utf16_writer
+ {
+ typedef uint16_t* value_type;
+
+ static value_type low(value_type result, uint32_t ch)
+ {
+ *result = static_cast<uint16_t>(ch);
+
+ return result + 1;
+ }
+
+ static value_type high(value_type result, uint32_t ch)
+ {
+ uint32_t msh = static_cast<uint32_t>(ch - 0x10000) >> 10;
+ uint32_t lsh = static_cast<uint32_t>(ch - 0x10000) & 0x3ff;
+
+ result[0] = static_cast<uint16_t>(0xD800 + msh);
+ result[1] = static_cast<uint16_t>(0xDC00 + lsh);
+
+ return result + 2;
+ }
+
+ static value_type any(value_type result, uint32_t ch)
+ {
+ return (ch < 0x10000) ? low(result, ch) : high(result, ch);
+ }
+ };
+
+ struct utf32_counter
+ {
+ typedef size_t value_type;
+
+ static value_type low(value_type result, uint32_t)
+ {
+ return result + 1;
+ }
+
+ static value_type high(value_type result, uint32_t)
+ {
+ return result + 1;
+ }
+ };
+
+ struct utf32_writer
+ {
+ typedef uint32_t* value_type;
+
+ static value_type low(value_type result, uint32_t ch)
+ {
+ *result = ch;
+
+ return result + 1;
+ }
+
+ static value_type high(value_type result, uint32_t ch)
+ {
+ *result = ch;
+
+ return result + 1;
+ }
+
+ static value_type any(value_type result, uint32_t ch)
+ {
+ *result = ch;
+
+ return result + 1;
+ }
+ };
+
+ struct latin1_writer
+ {
+ typedef uint8_t* value_type;
+
+ static value_type low(value_type result, uint32_t ch)
+ {
+ *result = static_cast<uint8_t>(ch > 255 ? '?' : ch);
+
+ return result + 1;
+ }
+
+ static value_type high(value_type result, uint32_t ch)
+ {
+ (void)ch;
+
+ *result = '?';
+
+ return result + 1;
+ }
+ };
+
+ template <size_t size> struct wchar_selector;
+
+ template <> struct wchar_selector<2>
+ {
+ typedef uint16_t type;
+ typedef utf16_counter counter;
+ typedef utf16_writer writer;
+ };
+
+ template <> struct wchar_selector<4>
+ {
+ typedef uint32_t type;
+ typedef utf32_counter counter;
+ typedef utf32_writer writer;
+ };
+
+ typedef wchar_selector<sizeof(wchar_t)>::counter wchar_counter;
+ typedef wchar_selector<sizeof(wchar_t)>::writer wchar_writer;
+
+ template <typename Traits, typename opt_swap = opt_false> struct utf_decoder
+ {
+ static inline typename Traits::value_type decode_utf8_block(const uint8_t* data, size_t size, typename Traits::value_type result)
+ {
+ const uint8_t utf8_byte_mask = 0x3f;
+
+ while (size)
+ {
+ uint8_t lead = *data;
+
+ // 0xxxxxxx -> U+0000..U+007F
+ if (lead < 0x80)
+ {
+ result = Traits::low(result, lead);
+ data += 1;
+ size -= 1;
+
+ // process aligned single-byte (ascii) blocks
+ if ((reinterpret_cast<uintptr_t>(data) & 3) == 0)
+ {
+ // round-trip through void* to silence 'cast increases required alignment of target type' warnings
+ while (size >= 4 && (*static_cast<const uint32_t*>(static_cast<const void*>(data)) & 0x80808080) == 0)
+ {
+ result = Traits::low(result, data[0]);
+ result = Traits::low(result, data[1]);
+ result = Traits::low(result, data[2]);
+ result = Traits::low(result, data[3]);
+ data += 4;
+ size -= 4;
+ }
+ }
+ }
+ // 110xxxxx -> U+0080..U+07FF
+ else if (static_cast<unsigned int>(lead - 0xC0) < 0x20 && size >= 2 && (data[1] & 0xc0) == 0x80)
+ {
+ result = Traits::low(result, ((lead & ~0xC0) << 6) | (data[1] & utf8_byte_mask));
+ data += 2;
+ size -= 2;
+ }
+ // 1110xxxx -> U+0800-U+FFFF
+ else if (static_cast<unsigned int>(lead - 0xE0) < 0x10 && size >= 3 && (data[1] & 0xc0) == 0x80 && (data[2] & 0xc0) == 0x80)
+ {
+ result = Traits::low(result, ((lead & ~0xE0) << 12) | ((data[1] & utf8_byte_mask) << 6) | (data[2] & utf8_byte_mask));
+ data += 3;
+ size -= 3;
+ }
+ // 11110xxx -> U+10000..U+10FFFF
+ else if (static_cast<unsigned int>(lead - 0xF0) < 0x08 && size >= 4 && (data[1] & 0xc0) == 0x80 && (data[2] & 0xc0) == 0x80 && (data[3] & 0xc0) == 0x80)
+ {
+ result = Traits::high(result, ((lead & ~0xF0) << 18) | ((data[1] & utf8_byte_mask) << 12) | ((data[2] & utf8_byte_mask) << 6) | (data[3] & utf8_byte_mask));
+ data += 4;
+ size -= 4;
+ }
+ // 10xxxxxx or 11111xxx -> invalid
+ else
+ {
+ data += 1;
+ size -= 1;
+ }
+ }
+
+ return result;
+ }
+
+ static inline typename Traits::value_type decode_utf16_block(const uint16_t* data, size_t size, typename Traits::value_type result)
+ {
+ const uint16_t* end = data + size;
+
+ while (data < end)
+ {
+ unsigned int lead = opt_swap::value ? endian_swap(*data) : *data;
+
+ // U+0000..U+D7FF
+ if (lead < 0xD800)
+ {
+ result = Traits::low(result, lead);
+ data += 1;
+ }
+ // U+E000..U+FFFF
+ else if (static_cast<unsigned int>(lead - 0xE000) < 0x2000)
+ {
+ result = Traits::low(result, lead);
+ data += 1;
+ }
+ // surrogate pair lead
+ else if (static_cast<unsigned int>(lead - 0xD800) < 0x400 && data + 1 < end)
+ {
+ uint16_t next = opt_swap::value ? endian_swap(data[1]) : data[1];
+
+ if (static_cast<unsigned int>(next - 0xDC00) < 0x400)
+ {
+ result = Traits::high(result, 0x10000 + ((lead & 0x3ff) << 10) + (next & 0x3ff));
+ data += 2;
+ }
+ else
+ {
+ data += 1;
+ }
+ }
+ else
+ {
+ data += 1;
+ }
+ }
+
+ return result;
+ }
+
+ static inline typename Traits::value_type decode_utf32_block(const uint32_t* data, size_t size, typename Traits::value_type result)
+ {
+ const uint32_t* end = data + size;
+
+ while (data < end)
+ {
+ uint32_t lead = opt_swap::value ? endian_swap(*data) : *data;
+
+ // U+0000..U+FFFF
+ if (lead < 0x10000)
+ {
+ result = Traits::low(result, lead);
+ data += 1;
+ }
+ // U+10000..U+10FFFF
+ else
+ {
+ result = Traits::high(result, lead);
+ data += 1;
+ }
+ }
+
+ return result;
+ }
+
+ static inline typename Traits::value_type decode_latin1_block(const uint8_t* data, size_t size, typename Traits::value_type result)
+ {
+ for (size_t i = 0; i < size; ++i)
+ {
+ result = Traits::low(result, data[i]);
+ }
+
+ return result;
+ }
+
+ static inline typename Traits::value_type decode_wchar_block_impl(const uint16_t* data, size_t size, typename Traits::value_type result)
+ {
+ return decode_utf16_block(data, size, result);
+ }
+
+ static inline typename Traits::value_type decode_wchar_block_impl(const uint32_t* data, size_t size, typename Traits::value_type result)
+ {
+ return decode_utf32_block(data, size, result);
+ }
+
+ static inline typename Traits::value_type decode_wchar_block(const wchar_t* data, size_t size, typename Traits::value_type result)
+ {
+ return decode_wchar_block_impl(reinterpret_cast<const wchar_selector<sizeof(wchar_t)>::type*>(data), size, result);
+ }
+ };
+
+ template <typename T> PUGI__FN void convert_utf_endian_swap(T* result, const T* data, size_t length)
+ {
+ for (size_t i = 0; i < length; ++i) result[i] = endian_swap(data[i]);
+ }
+
+#ifdef PUGIXML_WCHAR_MODE
+ PUGI__FN void convert_wchar_endian_swap(wchar_t* result, const wchar_t* data, size_t length)
+ {
+ for (size_t i = 0; i < length; ++i) result[i] = static_cast<wchar_t>(endian_swap(static_cast<wchar_selector<sizeof(wchar_t)>::type>(data[i])));
+ }
+#endif
+PUGI__NS_END
+
+PUGI__NS_BEGIN
+ enum chartype_t
+ {
+ ct_parse_pcdata = 1, // \0, &, \r, <
+ ct_parse_attr = 2, // \0, &, \r, ', "
+ ct_parse_attr_ws = 4, // \0, &, \r, ', ", \n, tab
+ ct_space = 8, // \r, \n, space, tab
+ ct_parse_cdata = 16, // \0, ], >, \r
+ ct_parse_comment = 32, // \0, -, >, \r
+ ct_symbol = 64, // Any symbol > 127, a-z, A-Z, 0-9, _, :, -, .
+ ct_start_symbol = 128 // Any symbol > 127, a-z, A-Z, _, :
+ };
+
+ static const unsigned char chartype_table[256] =
+ {
+ 55, 0, 0, 0, 0, 0, 0, 0, 0, 12, 12, 0, 0, 63, 0, 0, // 0-15
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16-31
+ 8, 0, 6, 0, 0, 0, 7, 6, 0, 0, 0, 0, 0, 96, 64, 0, // 32-47
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 192, 0, 1, 0, 48, 0, // 48-63
+ 0, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, // 64-79
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 0, 0, 16, 0, 192, // 80-95
+ 0, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, // 96-111
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 0, 0, 0, 0, 0, // 112-127
+
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, // 128+
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
+ 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192
+ };
+
+ enum chartypex_t
+ {
+ ctx_special_pcdata = 1, // Any symbol >= 0 and < 32 (except \t, \r, \n), &, <, >
+ ctx_special_attr = 2, // Any symbol >= 0 and < 32 (except \t), &, <, >, "
+ ctx_start_symbol = 4, // Any symbol > 127, a-z, A-Z, _
+ ctx_digit = 8, // 0-9
+ ctx_symbol = 16 // Any symbol > 127, a-z, A-Z, 0-9, _, -, .
+ };
+
+ static const unsigned char chartypex_table[256] =
+ {
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 2, 3, 3, // 0-15
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // 16-31
+ 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 16, 16, 0, // 32-47
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 0, 0, 3, 0, 3, 0, // 48-63
+
+ 0, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, // 64-79
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 0, 0, 0, 20, // 80-95
+ 0, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, // 96-111
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 0, 0, 0, 0, // 112-127
+
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, // 128+
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20
+ };
+
+#ifdef PUGIXML_WCHAR_MODE
+ #define PUGI__IS_CHARTYPE_IMPL(c, ct, table) ((static_cast<unsigned int>(c) < 128 ? table[static_cast<unsigned int>(c)] : table[128]) & (ct))
+#else
+ #define PUGI__IS_CHARTYPE_IMPL(c, ct, table) (table[static_cast<unsigned char>(c)] & (ct))
+#endif
+
+ #define PUGI__IS_CHARTYPE(c, ct) PUGI__IS_CHARTYPE_IMPL(c, ct, chartype_table)
+ #define PUGI__IS_CHARTYPEX(c, ct) PUGI__IS_CHARTYPE_IMPL(c, ct, chartypex_table)
+
+ PUGI__FN bool is_little_endian()
+ {
+ unsigned int ui = 1;
+
+ return *reinterpret_cast<unsigned char*>(&ui) == 1;
+ }
+
+ PUGI__FN xml_encoding get_wchar_encoding()
+ {
+ PUGI__STATIC_ASSERT(sizeof(wchar_t) == 2 || sizeof(wchar_t) == 4);
+
+ if (sizeof(wchar_t) == 2)
+ return is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+ else
+ return is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+ }
+
+ PUGI__FN xml_encoding guess_buffer_encoding(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3)
+ {
+ // look for BOM in first few bytes
+ if (d0 == 0 && d1 == 0 && d2 == 0xfe && d3 == 0xff) return encoding_utf32_be;
+ if (d0 == 0xff && d1 == 0xfe && d2 == 0 && d3 == 0) return encoding_utf32_le;
+ if (d0 == 0xfe && d1 == 0xff) return encoding_utf16_be;
+ if (d0 == 0xff && d1 == 0xfe) return encoding_utf16_le;
+ if (d0 == 0xef && d1 == 0xbb && d2 == 0xbf) return encoding_utf8;
+
+ // look for <, <? or <?xm in various encodings
+ if (d0 == 0 && d1 == 0 && d2 == 0 && d3 == 0x3c) return encoding_utf32_be;
+ if (d0 == 0x3c && d1 == 0 && d2 == 0 && d3 == 0) return encoding_utf32_le;
+ if (d0 == 0 && d1 == 0x3c && d2 == 0 && d3 == 0x3f) return encoding_utf16_be;
+ if (d0 == 0x3c && d1 == 0 && d2 == 0x3f && d3 == 0) return encoding_utf16_le;
+ if (d0 == 0x3c && d1 == 0x3f && d2 == 0x78 && d3 == 0x6d) return encoding_utf8;
+
+ // look for utf16 < followed by node name (this may fail, but is better than utf8 since it's zero terminated so early)
+ if (d0 == 0 && d1 == 0x3c) return encoding_utf16_be;
+ if (d0 == 0x3c && d1 == 0) return encoding_utf16_le;
+
+ // no known BOM detected, assume utf8
+ return encoding_utf8;
+ }
+
+ PUGI__FN xml_encoding get_buffer_encoding(xml_encoding encoding, const void* contents, size_t size)
+ {
+ // replace wchar encoding with utf implementation
+ if (encoding == encoding_wchar) return get_wchar_encoding();
+
+ // replace utf16 encoding with utf16 with specific endianness
+ if (encoding == encoding_utf16) return is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+
+ // replace utf32 encoding with utf32 with specific endianness
+ if (encoding == encoding_utf32) return is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+
+ // only do autodetection if no explicit encoding is requested
+ if (encoding != encoding_auto) return encoding;
+
+ // skip encoding autodetection if input buffer is too small
+ if (size < 4) return encoding_utf8;
+
+ // try to guess encoding (based on XML specification, Appendix F.1)
+ const uint8_t* data = static_cast<const uint8_t*>(contents);
+
+ PUGI__DMC_VOLATILE uint8_t d0 = data[0], d1 = data[1], d2 = data[2], d3 = data[3];
+
+ return guess_buffer_encoding(d0, d1, d2, d3);
+ }
+
+ PUGI__FN bool get_mutable_buffer(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, bool is_mutable)
+ {
+ size_t length = size / sizeof(char_t);
+
+ if (is_mutable)
+ {
+ out_buffer = static_cast<char_t*>(const_cast<void*>(contents));
+ out_length = length;
+ }
+ else
+ {
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ memcpy(buffer, contents, length * sizeof(char_t));
+ buffer[length] = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+ }
+
+ return true;
+ }
+
+#ifdef PUGIXML_WCHAR_MODE
+ PUGI__FN bool need_endian_swap_utf(xml_encoding le, xml_encoding re)
+ {
+ return (le == encoding_utf16_be && re == encoding_utf16_le) || (le == encoding_utf16_le && re == encoding_utf16_be) ||
+ (le == encoding_utf32_be && re == encoding_utf32_le) || (le == encoding_utf32_le && re == encoding_utf32_be);
+ }
+
+ PUGI__FN bool convert_buffer_endian_swap(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, bool is_mutable)
+ {
+ const char_t* data = static_cast<const char_t*>(contents);
+ size_t length = size / sizeof(char_t);
+
+ if (is_mutable)
+ {
+ char_t* buffer = const_cast<char_t*>(data);
+
+ convert_wchar_endian_swap(buffer, data, length);
+
+ out_buffer = buffer;
+ out_length = length;
+ }
+ else
+ {
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ convert_wchar_endian_swap(buffer, data, length);
+ buffer[length] = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+ }
+
+ return true;
+ }
+
+ PUGI__FN bool convert_buffer_utf8(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size)
+ {
+ const uint8_t* data = static_cast<const uint8_t*>(contents);
+ size_t data_length = size;
+
+ // first pass: get length in wchar_t units
+ size_t length = utf_decoder<wchar_counter>::decode_utf8_block(data, data_length, 0);
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // second pass: convert utf8 input to wchar_t
+ wchar_writer::value_type obegin = reinterpret_cast<wchar_writer::value_type>(buffer);
+ wchar_writer::value_type oend = utf_decoder<wchar_writer>::decode_utf8_block(data, data_length, obegin);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ template <typename opt_swap> PUGI__FN bool convert_buffer_utf16(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, opt_swap)
+ {
+ const uint16_t* data = static_cast<const uint16_t*>(contents);
+ size_t data_length = size / sizeof(uint16_t);
+
+ // first pass: get length in wchar_t units
+ size_t length = utf_decoder<wchar_counter, opt_swap>::decode_utf16_block(data, data_length, 0);
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // second pass: convert utf16 input to wchar_t
+ wchar_writer::value_type obegin = reinterpret_cast<wchar_writer::value_type>(buffer);
+ wchar_writer::value_type oend = utf_decoder<wchar_writer, opt_swap>::decode_utf16_block(data, data_length, obegin);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ template <typename opt_swap> PUGI__FN bool convert_buffer_utf32(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, opt_swap)
+ {
+ const uint32_t* data = static_cast<const uint32_t*>(contents);
+ size_t data_length = size / sizeof(uint32_t);
+
+ // first pass: get length in wchar_t units
+ size_t length = utf_decoder<wchar_counter, opt_swap>::decode_utf32_block(data, data_length, 0);
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // second pass: convert utf32 input to wchar_t
+ wchar_writer::value_type obegin = reinterpret_cast<wchar_writer::value_type>(buffer);
+ wchar_writer::value_type oend = utf_decoder<wchar_writer, opt_swap>::decode_utf32_block(data, data_length, obegin);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ PUGI__FN bool convert_buffer_latin1(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size)
+ {
+ const uint8_t* data = static_cast<const uint8_t*>(contents);
+ size_t data_length = size;
+
+ // get length in wchar_t units
+ size_t length = data_length;
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // convert latin1 input to wchar_t
+ wchar_writer::value_type obegin = reinterpret_cast<wchar_writer::value_type>(buffer);
+ wchar_writer::value_type oend = utf_decoder<wchar_writer>::decode_latin1_block(data, data_length, obegin);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ PUGI__FN bool convert_buffer(char_t*& out_buffer, size_t& out_length, xml_encoding encoding, const void* contents, size_t size, bool is_mutable)
+ {
+ // get native encoding
+ xml_encoding wchar_encoding = get_wchar_encoding();
+
+ // fast path: no conversion required
+ if (encoding == wchar_encoding) return get_mutable_buffer(out_buffer, out_length, contents, size, is_mutable);
+
+ // only endian-swapping is required
+ if (need_endian_swap_utf(encoding, wchar_encoding)) return convert_buffer_endian_swap(out_buffer, out_length, contents, size, is_mutable);
+
+ // source encoding is utf8
+ if (encoding == encoding_utf8) return convert_buffer_utf8(out_buffer, out_length, contents, size);
+
+ // source encoding is utf16
+ if (encoding == encoding_utf16_be || encoding == encoding_utf16_le)
+ {
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+
+ return (native_encoding == encoding) ?
+ convert_buffer_utf16(out_buffer, out_length, contents, size, opt_false()) :
+ convert_buffer_utf16(out_buffer, out_length, contents, size, opt_true());
+ }
+
+ // source encoding is utf32
+ if (encoding == encoding_utf32_be || encoding == encoding_utf32_le)
+ {
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+
+ return (native_encoding == encoding) ?
+ convert_buffer_utf32(out_buffer, out_length, contents, size, opt_false()) :
+ convert_buffer_utf32(out_buffer, out_length, contents, size, opt_true());
+ }
+
+ // source encoding is latin1
+ if (encoding == encoding_latin1) return convert_buffer_latin1(out_buffer, out_length, contents, size);
+
+ assert(!"Invalid encoding");
+ return false;
+ }
+#else
+ template <typename opt_swap> PUGI__FN bool convert_buffer_utf16(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, opt_swap)
+ {
+ const uint16_t* data = static_cast<const uint16_t*>(contents);
+ size_t data_length = size / sizeof(uint16_t);
+
+ // first pass: get length in utf8 units
+ size_t length = utf_decoder<utf8_counter, opt_swap>::decode_utf16_block(data, data_length, 0);
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // second pass: convert utf16 input to utf8
+ uint8_t* obegin = reinterpret_cast<uint8_t*>(buffer);
+ uint8_t* oend = utf_decoder<utf8_writer, opt_swap>::decode_utf16_block(data, data_length, obegin);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ template <typename opt_swap> PUGI__FN bool convert_buffer_utf32(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, opt_swap)
+ {
+ const uint32_t* data = static_cast<const uint32_t*>(contents);
+ size_t data_length = size / sizeof(uint32_t);
+
+ // first pass: get length in utf8 units
+ size_t length = utf_decoder<utf8_counter, opt_swap>::decode_utf32_block(data, data_length, 0);
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // second pass: convert utf32 input to utf8
+ uint8_t* obegin = reinterpret_cast<uint8_t*>(buffer);
+ uint8_t* oend = utf_decoder<utf8_writer, opt_swap>::decode_utf32_block(data, data_length, obegin);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ PUGI__FN size_t get_latin1_7bit_prefix_length(const uint8_t* data, size_t size)
+ {
+ for (size_t i = 0; i < size; ++i)
+ if (data[i] > 127)
+ return i;
+
+ return size;
+ }
+
+ PUGI__FN bool convert_buffer_latin1(char_t*& out_buffer, size_t& out_length, const void* contents, size_t size, bool is_mutable)
+ {
+ const uint8_t* data = static_cast<const uint8_t*>(contents);
+ size_t data_length = size;
+
+ // get size of prefix that does not need utf8 conversion
+ size_t prefix_length = get_latin1_7bit_prefix_length(data, data_length);
+ assert(prefix_length <= data_length);
+
+ const uint8_t* postfix = data + prefix_length;
+ size_t postfix_length = data_length - prefix_length;
+
+ // if no conversion is needed, just return the original buffer
+ if (postfix_length == 0) return get_mutable_buffer(out_buffer, out_length, contents, size, is_mutable);
+
+ // first pass: get length in utf8 units
+ size_t length = prefix_length + utf_decoder<utf8_counter>::decode_latin1_block(postfix, postfix_length, 0);
+
+ // allocate buffer of suitable length
+ char_t* buffer = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!buffer) return false;
+
+ // second pass: convert latin1 input to utf8
+ memcpy(buffer, data, prefix_length);
+
+ uint8_t* obegin = reinterpret_cast<uint8_t*>(buffer);
+ uint8_t* oend = utf_decoder<utf8_writer>::decode_latin1_block(postfix, postfix_length, obegin + prefix_length);
+
+ assert(oend == obegin + length);
+ *oend = 0;
+
+ out_buffer = buffer;
+ out_length = length + 1;
+
+ return true;
+ }
+
+ PUGI__FN bool convert_buffer(char_t*& out_buffer, size_t& out_length, xml_encoding encoding, const void* contents, size_t size, bool is_mutable)
+ {
+ // fast path: no conversion required
+ if (encoding == encoding_utf8) return get_mutable_buffer(out_buffer, out_length, contents, size, is_mutable);
+
+ // source encoding is utf16
+ if (encoding == encoding_utf16_be || encoding == encoding_utf16_le)
+ {
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+
+ return (native_encoding == encoding) ?
+ convert_buffer_utf16(out_buffer, out_length, contents, size, opt_false()) :
+ convert_buffer_utf16(out_buffer, out_length, contents, size, opt_true());
+ }
+
+ // source encoding is utf32
+ if (encoding == encoding_utf32_be || encoding == encoding_utf32_le)
+ {
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+
+ return (native_encoding == encoding) ?
+ convert_buffer_utf32(out_buffer, out_length, contents, size, opt_false()) :
+ convert_buffer_utf32(out_buffer, out_length, contents, size, opt_true());
+ }
+
+ // source encoding is latin1
+ if (encoding == encoding_latin1) return convert_buffer_latin1(out_buffer, out_length, contents, size, is_mutable);
+
+ assert(!"Invalid encoding");
+ return false;
+ }
+#endif
+
+ PUGI__FN size_t as_utf8_begin(const wchar_t* str, size_t length)
+ {
+ // get length in utf8 characters
+ return utf_decoder<utf8_counter>::decode_wchar_block(str, length, 0);
+ }
+
+ PUGI__FN void as_utf8_end(char* buffer, size_t size, const wchar_t* str, size_t length)
+ {
+ // convert to utf8
+ uint8_t* begin = reinterpret_cast<uint8_t*>(buffer);
+ uint8_t* end = utf_decoder<utf8_writer>::decode_wchar_block(str, length, begin);
+
+ assert(begin + size == end);
+ (void)!end;
+
+ // zero-terminate
+ buffer[size] = 0;
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN std::string as_utf8_impl(const wchar_t* str, size_t length)
+ {
+ // first pass: get length in utf8 characters
+ size_t size = as_utf8_begin(str, length);
+
+ // allocate resulting string
+ std::string result;
+ result.resize(size);
+
+ // second pass: convert to utf8
+ if (size > 0) as_utf8_end(&result[0], size, str, length);
+
+ return result;
+ }
+
+ PUGI__FN std::basic_string<wchar_t> as_wide_impl(const char* str, size_t size)
+ {
+ const uint8_t* data = reinterpret_cast<const uint8_t*>(str);
+
+ // first pass: get length in wchar_t units
+ size_t length = utf_decoder<wchar_counter>::decode_utf8_block(data, size, 0);
+
+ // allocate resulting string
+ std::basic_string<wchar_t> result;
+ result.resize(length);
+
+ // second pass: convert to wchar_t
+ if (length > 0)
+ {
+ wchar_writer::value_type begin = reinterpret_cast<wchar_writer::value_type>(&result[0]);
+ wchar_writer::value_type end = utf_decoder<wchar_writer>::decode_utf8_block(data, size, begin);
+
+ assert(begin + length == end);
+ (void)!end;
+ }
+
+ return result;
+ }
+#endif
+
+ inline bool strcpy_insitu_allow(size_t length, uintptr_t allocated, char_t* target)
+ {
+ assert(target);
+ size_t target_length = strlength(target);
+
+ // always reuse document buffer memory if possible
+ if (!allocated) return target_length >= length;
+
+ // reuse heap memory if waste is not too great
+ const size_t reuse_threshold = 32;
+
+ return target_length >= length && (target_length < reuse_threshold || target_length - length < target_length / 2);
+ }
+
+ PUGI__FN bool strcpy_insitu(char_t*& dest, uintptr_t& header, uintptr_t header_mask, const char_t* source)
+ {
+ assert(header);
+
+ size_t source_length = strlength(source);
+
+ if (source_length == 0)
+ {
+ // empty string and null pointer are equivalent, so just deallocate old memory
+ xml_allocator* alloc = reinterpret_cast<xml_memory_page*>(header & xml_memory_page_pointer_mask)->allocator;
+
+ if (header & header_mask) alloc->deallocate_string(dest);
+
+ // mark the string as not allocated
+ dest = 0;
+ header &= ~header_mask;
+
+ return true;
+ }
+ else if (dest && strcpy_insitu_allow(source_length, header & header_mask, dest))
+ {
+ // we can reuse old buffer, so just copy the new data (including zero terminator)
+ memcpy(dest, source, (source_length + 1) * sizeof(char_t));
+
+ return true;
+ }
+ else
+ {
+ xml_allocator* alloc = reinterpret_cast<xml_memory_page*>(header & xml_memory_page_pointer_mask)->allocator;
+
+ // allocate new buffer
+ char_t* buf = alloc->allocate_string(source_length + 1);
+ if (!buf) return false;
+
+ // copy the string (including zero terminator)
+ memcpy(buf, source, (source_length + 1) * sizeof(char_t));
+
+ // deallocate old buffer (*after* the above to protect against overlapping memory and/or allocation failures)
+ if (header & header_mask) alloc->deallocate_string(dest);
+
+ // the string is now allocated, so set the flag
+ dest = buf;
+ header |= header_mask;
+
+ return true;
+ }
+ }
+
+ struct gap
+ {
+ char_t* end;
+ size_t size;
+
+ gap(): end(0), size(0)
+ {
+ }
+
+ // Push new gap, move s count bytes further (skipping the gap).
+ // Collapse previous gap.
+ void push(char_t*& s, size_t count)
+ {
+ if (end) // there was a gap already; collapse it
+ {
+ // Move [old_gap_end, new_gap_start) to [old_gap_start, ...)
+ assert(s >= end);
+ memmove(end - size, end, reinterpret_cast<char*>(s) - reinterpret_cast<char*>(end));
+ }
+
+ s += count; // end of current gap
+
+ // "merge" two gaps
+ end = s;
+ size += count;
+ }
+
+ // Collapse all gaps, return past-the-end pointer
+ char_t* flush(char_t* s)
+ {
+ if (end)
+ {
+ // Move [old_gap_end, current_pos) to [old_gap_start, ...)
+ assert(s >= end);
+ memmove(end - size, end, reinterpret_cast<char*>(s) - reinterpret_cast<char*>(end));
+
+ return s - size;
+ }
+ else return s;
+ }
+ };
+
+ PUGI__FN char_t* strconv_escape(char_t* s, gap& g)
+ {
+ char_t* stre = s + 1;
+
+ switch (*stre)
+ {
+ case '#': // &#...
+ {
+ unsigned int ucsc = 0;
+
+ if (stre[1] == 'x') // &#x... (hex code)
+ {
+ stre += 2;
+
+ char_t ch = *stre;
+
+ if (ch == ';') return stre;
+
+ for (;;)
+ {
+ if (static_cast<unsigned int>(ch - '0') <= 9)
+ ucsc = 16 * ucsc + (ch - '0');
+ else if (static_cast<unsigned int>((ch | ' ') - 'a') <= 5)
+ ucsc = 16 * ucsc + ((ch | ' ') - 'a' + 10);
+ else if (ch == ';')
+ break;
+ else // cancel
+ return stre;
+
+ ch = *++stre;
+ }
+
+ ++stre;
+ }
+ else // &#... (dec code)
+ {
+ char_t ch = *++stre;
+
+ if (ch == ';') return stre;
+
+ for (;;)
+ {
+ if (static_cast<unsigned int>(static_cast<unsigned int>(ch) - '0') <= 9)
+ ucsc = 10 * ucsc + (ch - '0');
+ else if (ch == ';')
+ break;
+ else // cancel
+ return stre;
+
+ ch = *++stre;
+ }
+
+ ++stre;
+ }
+
+ #ifdef PUGIXML_WCHAR_MODE
+ s = reinterpret_cast<char_t*>(wchar_writer::any(reinterpret_cast<wchar_writer::value_type>(s), ucsc));
+ #else
+ s = reinterpret_cast<char_t*>(utf8_writer::any(reinterpret_cast<uint8_t*>(s), ucsc));
+ #endif
+
+ g.push(s, stre - s);
+ return stre;
+ }
+
+ case 'a': // &a
+ {
+ ++stre;
+
+ if (*stre == 'm') // &am
+ {
+ if (*++stre == 'p' && *++stre == ';') // &
+ {
+ *s++ = '&';
+ ++stre;
+
+ g.push(s, stre - s);
+ return stre;
+ }
+ }
+ else if (*stre == 'p') // &ap
+ {
+ if (*++stre == 'o' && *++stre == 's' && *++stre == ';') // '
+ {
+ *s++ = '\'';
+ ++stre;
+
+ g.push(s, stre - s);
+ return stre;
+ }
+ }
+ break;
+ }
+
+ case 'g': // &g
+ {
+ if (*++stre == 't' && *++stre == ';') // >
+ {
+ *s++ = '>';
+ ++stre;
+
+ g.push(s, stre - s);
+ return stre;
+ }
+ break;
+ }
+
+ case 'l': // &l
+ {
+ if (*++stre == 't' && *++stre == ';') // <
+ {
+ *s++ = '<';
+ ++stre;
+
+ g.push(s, stre - s);
+ return stre;
+ }
+ break;
+ }
+
+ case 'q': // &q
+ {
+ if (*++stre == 'u' && *++stre == 'o' && *++stre == 't' && *++stre == ';') // "
+ {
+ *s++ = '"';
+ ++stre;
+
+ g.push(s, stre - s);
+ return stre;
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ return stre;
+ }
+
+ // Utility macro for last character handling
+ #define ENDSWITH(c, e) ((c) == (e) || ((c) == 0 && endch == (e)))
+
+ PUGI__FN char_t* strconv_comment(char_t* s, char_t endch)
+ {
+ gap g;
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_comment)) ++s;
+
+ if (*s == '\r') // Either a single 0x0d or 0x0d 0x0a pair
+ {
+ *s++ = '\n'; // replace first one with 0x0a
+
+ if (*s == '\n') g.push(s, 1);
+ }
+ else if (s[0] == '-' && s[1] == '-' && ENDSWITH(s[2], '>')) // comment ends here
+ {
+ *g.flush(s) = 0;
+
+ return s + (s[2] == '>' ? 3 : 2);
+ }
+ else if (*s == 0)
+ {
+ return 0;
+ }
+ else ++s;
+ }
+ }
+
+ PUGI__FN char_t* strconv_cdata(char_t* s, char_t endch)
+ {
+ gap g;
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_cdata)) ++s;
+
+ if (*s == '\r') // Either a single 0x0d or 0x0d 0x0a pair
+ {
+ *s++ = '\n'; // replace first one with 0x0a
+
+ if (*s == '\n') g.push(s, 1);
+ }
+ else if (s[0] == ']' && s[1] == ']' && ENDSWITH(s[2], '>')) // CDATA ends here
+ {
+ *g.flush(s) = 0;
+
+ return s + 1;
+ }
+ else if (*s == 0)
+ {
+ return 0;
+ }
+ else ++s;
+ }
+ }
+
+ typedef char_t* (*strconv_pcdata_t)(char_t*);
+
+ template <typename opt_trim, typename opt_eol, typename opt_escape> struct strconv_pcdata_impl
+ {
+ static char_t* parse(char_t* s)
+ {
+ gap g;
+
+ char_t* begin = s;
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_pcdata)) ++s;
+
+ if (*s == '<') // PCDATA ends here
+ {
+ char_t* end = g.flush(s);
+
+ if (opt_trim::value)
+ while (end > begin && PUGI__IS_CHARTYPE(end[-1], ct_space))
+ --end;
+
+ *end = 0;
+
+ return s + 1;
+ }
+ else if (opt_eol::value && *s == '\r') // Either a single 0x0d or 0x0d 0x0a pair
+ {
+ *s++ = '\n'; // replace first one with 0x0a
+
+ if (*s == '\n') g.push(s, 1);
+ }
+ else if (opt_escape::value && *s == '&')
+ {
+ s = strconv_escape(s, g);
+ }
+ else if (*s == 0)
+ {
+ char_t* end = g.flush(s);
+
+ if (opt_trim::value)
+ while (end > begin && PUGI__IS_CHARTYPE(end[-1], ct_space))
+ --end;
+
+ *end = 0;
+
+ return s;
+ }
+ else ++s;
+ }
+ }
+ };
+
+ PUGI__FN strconv_pcdata_t get_strconv_pcdata(unsigned int optmask)
+ {
+ PUGI__STATIC_ASSERT(parse_escapes == 0x10 && parse_eol == 0x20 && parse_trim_pcdata == 0x0800);
+
+ switch (((optmask >> 4) & 3) | ((optmask >> 9) & 4)) // get bitmask for flags (eol escapes trim)
+ {
+ case 0: return strconv_pcdata_impl<opt_false, opt_false, opt_false>::parse;
+ case 1: return strconv_pcdata_impl<opt_false, opt_false, opt_true>::parse;
+ case 2: return strconv_pcdata_impl<opt_false, opt_true, opt_false>::parse;
+ case 3: return strconv_pcdata_impl<opt_false, opt_true, opt_true>::parse;
+ case 4: return strconv_pcdata_impl<opt_true, opt_false, opt_false>::parse;
+ case 5: return strconv_pcdata_impl<opt_true, opt_false, opt_true>::parse;
+ case 6: return strconv_pcdata_impl<opt_true, opt_true, opt_false>::parse;
+ case 7: return strconv_pcdata_impl<opt_true, opt_true, opt_true>::parse;
+ default: assert(false); return 0; // should not get here
+ }
+ }
+
+ typedef char_t* (*strconv_attribute_t)(char_t*, char_t);
+
+ template <typename opt_escape> struct strconv_attribute_impl
+ {
+ static char_t* parse_wnorm(char_t* s, char_t end_quote)
+ {
+ gap g;
+
+ // trim leading whitespaces
+ if (PUGI__IS_CHARTYPE(*s, ct_space))
+ {
+ char_t* str = s;
+
+ do ++str;
+ while (PUGI__IS_CHARTYPE(*str, ct_space));
+
+ g.push(s, str - s);
+ }
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_attr_ws | ct_space)) ++s;
+
+ if (*s == end_quote)
+ {
+ char_t* str = g.flush(s);
+
+ do *str-- = 0;
+ while (PUGI__IS_CHARTYPE(*str, ct_space));
+
+ return s + 1;
+ }
+ else if (PUGI__IS_CHARTYPE(*s, ct_space))
+ {
+ *s++ = ' ';
+
+ if (PUGI__IS_CHARTYPE(*s, ct_space))
+ {
+ char_t* str = s + 1;
+ while (PUGI__IS_CHARTYPE(*str, ct_space)) ++str;
+
+ g.push(s, str - s);
+ }
+ }
+ else if (opt_escape::value && *s == '&')
+ {
+ s = strconv_escape(s, g);
+ }
+ else if (!*s)
+ {
+ return 0;
+ }
+ else ++s;
+ }
+ }
+
+ static char_t* parse_wconv(char_t* s, char_t end_quote)
+ {
+ gap g;
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_attr_ws)) ++s;
+
+ if (*s == end_quote)
+ {
+ *g.flush(s) = 0;
+
+ return s + 1;
+ }
+ else if (PUGI__IS_CHARTYPE(*s, ct_space))
+ {
+ if (*s == '\r')
+ {
+ *s++ = ' ';
+
+ if (*s == '\n') g.push(s, 1);
+ }
+ else *s++ = ' ';
+ }
+ else if (opt_escape::value && *s == '&')
+ {
+ s = strconv_escape(s, g);
+ }
+ else if (!*s)
+ {
+ return 0;
+ }
+ else ++s;
+ }
+ }
+
+ static char_t* parse_eol(char_t* s, char_t end_quote)
+ {
+ gap g;
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_attr)) ++s;
+
+ if (*s == end_quote)
+ {
+ *g.flush(s) = 0;
+
+ return s + 1;
+ }
+ else if (*s == '\r')
+ {
+ *s++ = '\n';
+
+ if (*s == '\n') g.push(s, 1);
+ }
+ else if (opt_escape::value && *s == '&')
+ {
+ s = strconv_escape(s, g);
+ }
+ else if (!*s)
+ {
+ return 0;
+ }
+ else ++s;
+ }
+ }
+
+ static char_t* parse_simple(char_t* s, char_t end_quote)
+ {
+ gap g;
+
+ while (true)
+ {
+ while (!PUGI__IS_CHARTYPE(*s, ct_parse_attr)) ++s;
+
+ if (*s == end_quote)
+ {
+ *g.flush(s) = 0;
+
+ return s + 1;
+ }
+ else if (opt_escape::value && *s == '&')
+ {
+ s = strconv_escape(s, g);
+ }
+ else if (!*s)
+ {
+ return 0;
+ }
+ else ++s;
+ }
+ }
+ };
+
+ PUGI__FN strconv_attribute_t get_strconv_attribute(unsigned int optmask)
+ {
+ PUGI__STATIC_ASSERT(parse_escapes == 0x10 && parse_eol == 0x20 && parse_wconv_attribute == 0x40 && parse_wnorm_attribute == 0x80);
+
+ switch ((optmask >> 4) & 15) // get bitmask for flags (wconv wnorm eol escapes)
+ {
+ case 0: return strconv_attribute_impl<opt_false>::parse_simple;
+ case 1: return strconv_attribute_impl<opt_true>::parse_simple;
+ case 2: return strconv_attribute_impl<opt_false>::parse_eol;
+ case 3: return strconv_attribute_impl<opt_true>::parse_eol;
+ case 4: return strconv_attribute_impl<opt_false>::parse_wconv;
+ case 5: return strconv_attribute_impl<opt_true>::parse_wconv;
+ case 6: return strconv_attribute_impl<opt_false>::parse_wconv;
+ case 7: return strconv_attribute_impl<opt_true>::parse_wconv;
+ case 8: return strconv_attribute_impl<opt_false>::parse_wnorm;
+ case 9: return strconv_attribute_impl<opt_true>::parse_wnorm;
+ case 10: return strconv_attribute_impl<opt_false>::parse_wnorm;
+ case 11: return strconv_attribute_impl<opt_true>::parse_wnorm;
+ case 12: return strconv_attribute_impl<opt_false>::parse_wnorm;
+ case 13: return strconv_attribute_impl<opt_true>::parse_wnorm;
+ case 14: return strconv_attribute_impl<opt_false>::parse_wnorm;
+ case 15: return strconv_attribute_impl<opt_true>::parse_wnorm;
+ default: assert(false); return 0; // should not get here
+ }
+ }
+
+ inline xml_parse_result make_parse_result(xml_parse_status status, ptrdiff_t offset = 0)
+ {
+ xml_parse_result result;
+ result.status = status;
+ result.offset = offset;
+
+ return result;
+ }
+
+ struct xml_parser
+ {
+ xml_allocator alloc;
+ char_t* error_offset;
+ xml_parse_status error_status;
+
+ // Parser utilities.
+ #define PUGI__SKIPWS() { while (PUGI__IS_CHARTYPE(*s, ct_space)) ++s; }
+ #define PUGI__OPTSET(OPT) ( optmsk & (OPT) )
+ #define PUGI__PUSHNODE(TYPE) { cursor = append_node(cursor, alloc, TYPE); if (!cursor) PUGI__THROW_ERROR(status_out_of_memory, s); }
+ #define PUGI__POPNODE() { cursor = cursor->parent; }
+ #define PUGI__SCANFOR(X) { while (*s != 0 && !(X)) ++s; }
+ #define PUGI__SCANWHILE(X) { while ((X)) ++s; }
+ #define PUGI__ENDSEG() { ch = *s; *s = 0; ++s; }
+ #define PUGI__THROW_ERROR(err, m) return error_offset = m, error_status = err, static_cast<char_t*>(0)
+ #define PUGI__CHECK_ERROR(err, m) { if (*s == 0) PUGI__THROW_ERROR(err, m); }
+
+ xml_parser(const xml_allocator& alloc_): alloc(alloc_), error_offset(0), error_status(status_ok)
+ {
+ }
+
+ // DOCTYPE consists of nested sections of the following possible types:
+ // <!-- ... -->, <? ... ?>, "...", '...'
+ // <![...]]>
+ // <!...>
+ // First group can not contain nested groups
+ // Second group can contain nested groups of the same type
+ // Third group can contain all other groups
+ char_t* parse_doctype_primitive(char_t* s)
+ {
+ if (*s == '"' || *s == '\'')
+ {
+ // quoted string
+ char_t ch = *s++;
+ PUGI__SCANFOR(*s == ch);
+ if (!*s) PUGI__THROW_ERROR(status_bad_doctype, s);
+
+ s++;
+ }
+ else if (s[0] == '<' && s[1] == '?')
+ {
+ // <? ... ?>
+ s += 2;
+ PUGI__SCANFOR(s[0] == '?' && s[1] == '>'); // no need for ENDSWITH because ?> can't terminate proper doctype
+ if (!*s) PUGI__THROW_ERROR(status_bad_doctype, s);
+
+ s += 2;
+ }
+ else if (s[0] == '<' && s[1] == '!' && s[2] == '-' && s[3] == '-')
+ {
+ s += 4;
+ PUGI__SCANFOR(s[0] == '-' && s[1] == '-' && s[2] == '>'); // no need for ENDSWITH because --> can't terminate proper doctype
+ if (!*s) PUGI__THROW_ERROR(status_bad_doctype, s);
+
+ s += 4;
+ }
+ else PUGI__THROW_ERROR(status_bad_doctype, s);
+
+ return s;
+ }
+
+ char_t* parse_doctype_ignore(char_t* s)
+ {
+ assert(s[0] == '<' && s[1] == '!' && s[2] == '[');
+ s++;
+
+ while (*s)
+ {
+ if (s[0] == '<' && s[1] == '!' && s[2] == '[')
+ {
+ // nested ignore section
+ s = parse_doctype_ignore(s);
+ if (!s) return s;
+ }
+ else if (s[0] == ']' && s[1] == ']' && s[2] == '>')
+ {
+ // ignore section end
+ s += 3;
+
+ return s;
+ }
+ else s++;
+ }
+
+ PUGI__THROW_ERROR(status_bad_doctype, s);
+ }
+
+ char_t* parse_doctype_group(char_t* s, char_t endch, bool toplevel)
+ {
+ assert((s[0] == '<' || s[0] == 0) && s[1] == '!');
+ s++;
+
+ while (*s)
+ {
+ if (s[0] == '<' && s[1] == '!' && s[2] != '-')
+ {
+ if (s[2] == '[')
+ {
+ // ignore
+ s = parse_doctype_ignore(s);
+ if (!s) return s;
+ }
+ else
+ {
+ // some control group
+ s = parse_doctype_group(s, endch, false);
+ if (!s) return s;
+
+ // skip >
+ assert(*s == '>');
+ s++;
+ }
+ }
+ else if (s[0] == '<' || s[0] == '"' || s[0] == '\'')
+ {
+ // unknown tag (forbidden), or some primitive group
+ s = parse_doctype_primitive(s);
+ if (!s) return s;
+ }
+ else if (*s == '>')
+ {
+ return s;
+ }
+ else s++;
+ }
+
+ if (!toplevel || endch != '>') PUGI__THROW_ERROR(status_bad_doctype, s);
+
+ return s;
+ }
+
+ char_t* parse_exclamation(char_t* s, xml_node_struct* cursor, unsigned int optmsk, char_t endch)
+ {
+ // parse node contents, starting with exclamation mark
+ ++s;
+
+ if (*s == '-') // '<!-...'
+ {
+ ++s;
+
+ if (*s == '-') // '<!--...'
+ {
+ ++s;
+
+ if (PUGI__OPTSET(parse_comments))
+ {
+ PUGI__PUSHNODE(node_comment); // Append a new node on the tree.
+ cursor->value = s; // Save the offset.
+ }
+
+ if (PUGI__OPTSET(parse_eol) && PUGI__OPTSET(parse_comments))
+ {
+ s = strconv_comment(s, endch);
+
+ if (!s) PUGI__THROW_ERROR(status_bad_comment, cursor->value);
+ }
+ else
+ {
+ // Scan for terminating '-->'.
+ PUGI__SCANFOR(s[0] == '-' && s[1] == '-' && ENDSWITH(s[2], '>'));
+ PUGI__CHECK_ERROR(status_bad_comment, s);
+
+ if (PUGI__OPTSET(parse_comments))
+ *s = 0; // Zero-terminate this segment at the first terminating '-'.
+
+ s += (s[2] == '>' ? 3 : 2); // Step over the '\0->'.
+ }
+ }
+ else PUGI__THROW_ERROR(status_bad_comment, s);
+ }
+ else if (*s == '[')
+ {
+ // '<![CDATA[...'
+ if (*++s=='C' && *++s=='D' && *++s=='A' && *++s=='T' && *++s=='A' && *++s == '[')
+ {
+ ++s;
+
+ if (PUGI__OPTSET(parse_cdata))
+ {
+ PUGI__PUSHNODE(node_cdata); // Append a new node on the tree.
+ cursor->value = s; // Save the offset.
+
+ if (PUGI__OPTSET(parse_eol))
+ {
+ s = strconv_cdata(s, endch);
+
+ if (!s) PUGI__THROW_ERROR(status_bad_cdata, cursor->value);
+ }
+ else
+ {
+ // Scan for terminating ']]>'.
+ PUGI__SCANFOR(s[0] == ']' && s[1] == ']' && ENDSWITH(s[2], '>'));
+ PUGI__CHECK_ERROR(status_bad_cdata, s);
+
+ *s++ = 0; // Zero-terminate this segment.
+ }
+ }
+ else // Flagged for discard, but we still have to scan for the terminator.
+ {
+ // Scan for terminating ']]>'.
+ PUGI__SCANFOR(s[0] == ']' && s[1] == ']' && ENDSWITH(s[2], '>'));
+ PUGI__CHECK_ERROR(status_bad_cdata, s);
+
+ ++s;
+ }
+
+ s += (s[1] == '>' ? 2 : 1); // Step over the last ']>'.
+ }
+ else PUGI__THROW_ERROR(status_bad_cdata, s);
+ }
+ else if (s[0] == 'D' && s[1] == 'O' && s[2] == 'C' && s[3] == 'T' && s[4] == 'Y' && s[5] == 'P' && ENDSWITH(s[6], 'E'))
+ {
+ s -= 2;
+
+ if (cursor->parent) PUGI__THROW_ERROR(status_bad_doctype, s);
+
+ char_t* mark = s + 9;
+
+ s = parse_doctype_group(s, endch, true);
+ if (!s) return s;
+
+ assert((*s == 0 && endch == '>') || *s == '>');
+ if (*s) *s++ = 0;
+
+ if (PUGI__OPTSET(parse_doctype))
+ {
+ while (PUGI__IS_CHARTYPE(*mark, ct_space)) ++mark;
+
+ PUGI__PUSHNODE(node_doctype);
+
+ cursor->value = mark;
+
+ PUGI__POPNODE();
+ }
+ }
+ else if (*s == 0 && endch == '-') PUGI__THROW_ERROR(status_bad_comment, s);
+ else if (*s == 0 && endch == '[') PUGI__THROW_ERROR(status_bad_cdata, s);
+ else PUGI__THROW_ERROR(status_unrecognized_tag, s);
+
+ return s;
+ }
+
+ char_t* parse_question(char_t* s, xml_node_struct*& ref_cursor, unsigned int optmsk, char_t endch)
+ {
+ // load into registers
+ xml_node_struct* cursor = ref_cursor;
+ char_t ch = 0;
+
+ // parse node contents, starting with question mark
+ ++s;
+
+ // read PI target
+ char_t* target = s;
+
+ if (!PUGI__IS_CHARTYPE(*s, ct_start_symbol)) PUGI__THROW_ERROR(status_bad_pi, s);
+
+ PUGI__SCANWHILE(PUGI__IS_CHARTYPE(*s, ct_symbol));
+ PUGI__CHECK_ERROR(status_bad_pi, s);
+
+ // determine node type; stricmp / strcasecmp is not portable
+ bool declaration = (target[0] | ' ') == 'x' && (target[1] | ' ') == 'm' && (target[2] | ' ') == 'l' && target + 3 == s;
+
+ if (declaration ? PUGI__OPTSET(parse_declaration) : PUGI__OPTSET(parse_pi))
+ {
+ if (declaration)
+ {
+ // disallow non top-level declarations
+ if (cursor->parent) PUGI__THROW_ERROR(status_bad_pi, s);
+
+ PUGI__PUSHNODE(node_declaration);
+ }
+ else
+ {
+ PUGI__PUSHNODE(node_pi);
+ }
+
+ cursor->name = target;
+
+ PUGI__ENDSEG();
+
+ // parse value/attributes
+ if (ch == '?')
+ {
+ // empty node
+ if (!ENDSWITH(*s, '>')) PUGI__THROW_ERROR(status_bad_pi, s);
+ s += (*s == '>');
+
+ PUGI__POPNODE();
+ }
+ else if (PUGI__IS_CHARTYPE(ch, ct_space))
+ {
+ PUGI__SKIPWS();
+
+ // scan for tag end
+ char_t* value = s;
+
+ PUGI__SCANFOR(s[0] == '?' && ENDSWITH(s[1], '>'));
+ PUGI__CHECK_ERROR(status_bad_pi, s);
+
+ if (declaration)
+ {
+ // replace ending ? with / so that 'element' terminates properly
+ *s = '/';
+
+ // we exit from this function with cursor at node_declaration, which is a signal to parse() to go to LOC_ATTRIBUTES
+ s = value;
+ }
+ else
+ {
+ // store value and step over >
+ cursor->value = value;
+ PUGI__POPNODE();
+
+ PUGI__ENDSEG();
+
+ s += (*s == '>');
+ }
+ }
+ else PUGI__THROW_ERROR(status_bad_pi, s);
+ }
+ else
+ {
+ // scan for tag end
+ PUGI__SCANFOR(s[0] == '?' && ENDSWITH(s[1], '>'));
+ PUGI__CHECK_ERROR(status_bad_pi, s);
+
+ s += (s[1] == '>' ? 2 : 1);
+ }
+
+ // store from registers
+ ref_cursor = cursor;
+
+ return s;
+ }
+
+ char_t* parse_tree(char_t* s, xml_node_struct* root, unsigned int optmsk, char_t endch)
+ {
+ strconv_attribute_t strconv_attribute = get_strconv_attribute(optmsk);
+ strconv_pcdata_t strconv_pcdata = get_strconv_pcdata(optmsk);
+
+ char_t ch = 0;
+ xml_node_struct* cursor = root;
+ char_t* mark = s;
+
+ while (*s != 0)
+ {
+ if (*s == '<')
+ {
+ ++s;
+
+ LOC_TAG:
+ if (PUGI__IS_CHARTYPE(*s, ct_start_symbol)) // '<#...'
+ {
+ PUGI__PUSHNODE(node_element); // Append a new node to the tree.
+
+ cursor->name = s;
+
+ PUGI__SCANWHILE(PUGI__IS_CHARTYPE(*s, ct_symbol)); // Scan for a terminator.
+ PUGI__ENDSEG(); // Save char in 'ch', terminate & step over.
+
+ if (ch == '>')
+ {
+ // end of tag
+ }
+ else if (PUGI__IS_CHARTYPE(ch, ct_space))
+ {
+ LOC_ATTRIBUTES:
+ while (true)
+ {
+ PUGI__SKIPWS(); // Eat any whitespace.
+
+ if (PUGI__IS_CHARTYPE(*s, ct_start_symbol)) // <... #...
+ {
+ xml_attribute_struct* a = append_attribute_ll(cursor, alloc); // Make space for this attribute.
+ if (!a) PUGI__THROW_ERROR(status_out_of_memory, s);
+
+ a->name = s; // Save the offset.
+
+ PUGI__SCANWHILE(PUGI__IS_CHARTYPE(*s, ct_symbol)); // Scan for a terminator.
+ PUGI__CHECK_ERROR(status_bad_attribute, s); //$ redundant, left for performance
+
+ PUGI__ENDSEG(); // Save char in 'ch', terminate & step over.
+ PUGI__CHECK_ERROR(status_bad_attribute, s); //$ redundant, left for performance
+
+ if (PUGI__IS_CHARTYPE(ch, ct_space))
+ {
+ PUGI__SKIPWS(); // Eat any whitespace.
+ PUGI__CHECK_ERROR(status_bad_attribute, s); //$ redundant, left for performance
+
+ ch = *s;
+ ++s;
+ }
+
+ if (ch == '=') // '<... #=...'
+ {
+ PUGI__SKIPWS(); // Eat any whitespace.
+
+ if (*s == '"' || *s == '\'') // '<... #="...'
+ {
+ ch = *s; // Save quote char to avoid breaking on "''" -or- '""'.
+ ++s; // Step over the quote.
+ a->value = s; // Save the offset.
+
+ s = strconv_attribute(s, ch);
+
+ if (!s) PUGI__THROW_ERROR(status_bad_attribute, a->value);
+
+ // After this line the loop continues from the start;
+ // Whitespaces, / and > are ok, symbols and EOF are wrong,
+ // everything else will be detected
+ if (PUGI__IS_CHARTYPE(*s, ct_start_symbol)) PUGI__THROW_ERROR(status_bad_attribute, s);
+ }
+ else PUGI__THROW_ERROR(status_bad_attribute, s);
+ }
+ else PUGI__THROW_ERROR(status_bad_attribute, s);
+ }
+ else if (*s == '/')
+ {
+ ++s;
+
+ if (*s == '>')
+ {
+ PUGI__POPNODE();
+ s++;
+ break;
+ }
+ else if (*s == 0 && endch == '>')
+ {
+ PUGI__POPNODE();
+ break;
+ }
+ else PUGI__THROW_ERROR(status_bad_start_element, s);
+ }
+ else if (*s == '>')
+ {
+ ++s;
+
+ break;
+ }
+ else if (*s == 0 && endch == '>')
+ {
+ break;
+ }
+ else PUGI__THROW_ERROR(status_bad_start_element, s);
+ }
+
+ // !!!
+ }
+ else if (ch == '/') // '<#.../'
+ {
+ if (!ENDSWITH(*s, '>')) PUGI__THROW_ERROR(status_bad_start_element, s);
+
+ PUGI__POPNODE(); // Pop.
+
+ s += (*s == '>');
+ }
+ else if (ch == 0)
+ {
+ // we stepped over null terminator, backtrack & handle closing tag
+ --s;
+
+ if (endch != '>') PUGI__THROW_ERROR(status_bad_start_element, s);
+ }
+ else PUGI__THROW_ERROR(status_bad_start_element, s);
+ }
+ else if (*s == '/')
+ {
+ ++s;
+
+ char_t* name = cursor->name;
+ if (!name) PUGI__THROW_ERROR(status_end_element_mismatch, s);
+
+ while (PUGI__IS_CHARTYPE(*s, ct_symbol))
+ {
+ if (*s++ != *name++) PUGI__THROW_ERROR(status_end_element_mismatch, s);
+ }
+
+ if (*name)
+ {
+ if (*s == 0 && name[0] == endch && name[1] == 0) PUGI__THROW_ERROR(status_bad_end_element, s);
+ else PUGI__THROW_ERROR(status_end_element_mismatch, s);
+ }
+
+ PUGI__POPNODE(); // Pop.
+
+ PUGI__SKIPWS();
+
+ if (*s == 0)
+ {
+ if (endch != '>') PUGI__THROW_ERROR(status_bad_end_element, s);
+ }
+ else
+ {
+ if (*s != '>') PUGI__THROW_ERROR(status_bad_end_element, s);
+ ++s;
+ }
+ }
+ else if (*s == '?') // '<?...'
+ {
+ s = parse_question(s, cursor, optmsk, endch);
+ if (!s) return s;
+
+ assert(cursor);
+ if ((cursor->header & xml_memory_page_type_mask) + 1 == node_declaration) goto LOC_ATTRIBUTES;
+ }
+ else if (*s == '!') // '<!...'
+ {
+ s = parse_exclamation(s, cursor, optmsk, endch);
+ if (!s) return s;
+ }
+ else if (*s == 0 && endch == '?') PUGI__THROW_ERROR(status_bad_pi, s);
+ else PUGI__THROW_ERROR(status_unrecognized_tag, s);
+ }
+ else
+ {
+ mark = s; // Save this offset while searching for a terminator.
+
+ PUGI__SKIPWS(); // Eat whitespace if no genuine PCDATA here.
+
+ if (*s == '<' || !*s)
+ {
+ // We skipped some whitespace characters because otherwise we would take the tag branch instead of PCDATA one
+ assert(mark != s);
+
+ if (!PUGI__OPTSET(parse_ws_pcdata | parse_ws_pcdata_single) || PUGI__OPTSET(parse_trim_pcdata))
+ {
+ continue;
+ }
+ else if (PUGI__OPTSET(parse_ws_pcdata_single))
+ {
+ if (s[0] != '<' || s[1] != '/' || cursor->first_child) continue;
+ }
+ }
+
+ if (!PUGI__OPTSET(parse_trim_pcdata))
+ s = mark;
+
+ if (cursor->parent || PUGI__OPTSET(parse_fragment))
+ {
+ PUGI__PUSHNODE(node_pcdata); // Append a new node on the tree.
+ cursor->value = s; // Save the offset.
+
+ s = strconv_pcdata(s);
+
+ PUGI__POPNODE(); // Pop since this is a standalone.
+
+ if (!*s) break;
+ }
+ else
+ {
+ PUGI__SCANFOR(*s == '<'); // '...<'
+ if (!*s) break;
+
+ ++s;
+ }
+
+ // We're after '<'
+ goto LOC_TAG;
+ }
+ }
+
+ // check that last tag is closed
+ if (cursor != root) PUGI__THROW_ERROR(status_end_element_mismatch, s);
+
+ return s;
+ }
+
+ #ifdef PUGIXML_WCHAR_MODE
+ static char_t* parse_skip_bom(char_t* s)
+ {
+ unsigned int bom = 0xfeff;
+ return (s[0] == static_cast<wchar_t>(bom)) ? s + 1 : s;
+ }
+ #else
+ static char_t* parse_skip_bom(char_t* s)
+ {
+ return (s[0] == '\xef' && s[1] == '\xbb' && s[2] == '\xbf') ? s + 3 : s;
+ }
+ #endif
+
+ static bool has_element_node_siblings(xml_node_struct* node)
+ {
+ while (node)
+ {
+ xml_node_type type = static_cast<xml_node_type>((node->header & impl::xml_memory_page_type_mask) + 1);
+ if (type == node_element) return true;
+
+ node = node->next_sibling;
+ }
+
+ return false;
+ }
+
+ static xml_parse_result parse(char_t* buffer, size_t length, xml_document_struct* xmldoc, xml_node_struct* root, unsigned int optmsk)
+ {
+ // allocator object is a part of document object
+ xml_allocator& alloc = *static_cast<xml_allocator*>(xmldoc);
+
+ // early-out for empty documents
+ if (length == 0)
+ return make_parse_result(PUGI__OPTSET(parse_fragment) ? status_ok : status_no_document_element);
+
+ // get last child of the root before parsing
+ xml_node_struct* last_root_child = root->first_child ? root->first_child->prev_sibling_c : 0;
+
+ // create parser on stack
+ xml_parser parser(alloc);
+
+ // save last character and make buffer zero-terminated (speeds up parsing)
+ char_t endch = buffer[length - 1];
+ buffer[length - 1] = 0;
+
+ // skip BOM to make sure it does not end up as part of parse output
+ char_t* buffer_data = parse_skip_bom(buffer);
+
+ // perform actual parsing
+ parser.parse_tree(buffer_data, root, optmsk, endch);
+
+ // update allocator state
+ alloc = parser.alloc;
+
+ xml_parse_result result = make_parse_result(parser.error_status, parser.error_offset ? parser.error_offset - buffer : 0);
+ assert(result.offset >= 0 && static_cast<size_t>(result.offset) <= length);
+
+ if (result)
+ {
+ // since we removed last character, we have to handle the only possible false positive (stray <)
+ if (endch == '<')
+ return make_parse_result(status_unrecognized_tag, length - 1);
+
+ // check if there are any element nodes parsed
+ xml_node_struct* first_root_child_parsed = last_root_child ? last_root_child->next_sibling : root->first_child;
+
+ if (!PUGI__OPTSET(parse_fragment) && !has_element_node_siblings(first_root_child_parsed))
+ return make_parse_result(status_no_document_element, length - 1);
+ }
+ else
+ {
+ // roll back offset if it occurs on a null terminator in the source buffer
+ if (result.offset > 0 && static_cast<size_t>(result.offset) == length - 1 && endch == 0)
+ result.offset--;
+ }
+
+ return result;
+ }
+ };
+
+ // Output facilities
+ PUGI__FN xml_encoding get_write_native_encoding()
+ {
+ #ifdef PUGIXML_WCHAR_MODE
+ return get_wchar_encoding();
+ #else
+ return encoding_utf8;
+ #endif
+ }
+
+ PUGI__FN xml_encoding get_write_encoding(xml_encoding encoding)
+ {
+ // replace wchar encoding with utf implementation
+ if (encoding == encoding_wchar) return get_wchar_encoding();
+
+ // replace utf16 encoding with utf16 with specific endianness
+ if (encoding == encoding_utf16) return is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+
+ // replace utf32 encoding with utf32 with specific endianness
+ if (encoding == encoding_utf32) return is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+
+ // only do autodetection if no explicit encoding is requested
+ if (encoding != encoding_auto) return encoding;
+
+ // assume utf8 encoding
+ return encoding_utf8;
+ }
+
+#ifdef PUGIXML_WCHAR_MODE
+ PUGI__FN size_t get_valid_length(const char_t* data, size_t length)
+ {
+ assert(length > 0);
+
+ // discard last character if it's the lead of a surrogate pair
+ return (sizeof(wchar_t) == 2 && static_cast<unsigned int>(static_cast<uint16_t>(data[length - 1]) - 0xD800) < 0x400) ? length - 1 : length;
+ }
+
+ PUGI__FN size_t convert_buffer_output(char_t* r_char, uint8_t* r_u8, uint16_t* r_u16, uint32_t* r_u32, const char_t* data, size_t length, xml_encoding encoding)
+ {
+ // only endian-swapping is required
+ if (need_endian_swap_utf(encoding, get_wchar_encoding()))
+ {
+ convert_wchar_endian_swap(r_char, data, length);
+
+ return length * sizeof(char_t);
+ }
+
+ // convert to utf8
+ if (encoding == encoding_utf8)
+ {
+ uint8_t* dest = r_u8;
+ uint8_t* end = utf_decoder<utf8_writer>::decode_wchar_block(data, length, dest);
+
+ return static_cast<size_t>(end - dest);
+ }
+
+ // convert to utf16
+ if (encoding == encoding_utf16_be || encoding == encoding_utf16_le)
+ {
+ uint16_t* dest = r_u16;
+
+ // convert to native utf16
+ uint16_t* end = utf_decoder<utf16_writer>::decode_wchar_block(data, length, dest);
+
+ // swap if necessary
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+
+ if (native_encoding != encoding) convert_utf_endian_swap(dest, dest, static_cast<size_t>(end - dest));
+
+ return static_cast<size_t>(end - dest) * sizeof(uint16_t);
+ }
+
+ // convert to utf32
+ if (encoding == encoding_utf32_be || encoding == encoding_utf32_le)
+ {
+ uint32_t* dest = r_u32;
+
+ // convert to native utf32
+ uint32_t* end = utf_decoder<utf32_writer>::decode_wchar_block(data, length, dest);
+
+ // swap if necessary
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+
+ if (native_encoding != encoding) convert_utf_endian_swap(dest, dest, static_cast<size_t>(end - dest));
+
+ return static_cast<size_t>(end - dest) * sizeof(uint32_t);
+ }
+
+ // convert to latin1
+ if (encoding == encoding_latin1)
+ {
+ uint8_t* dest = r_u8;
+ uint8_t* end = utf_decoder<latin1_writer>::decode_wchar_block(data, length, dest);
+
+ return static_cast<size_t>(end - dest);
+ }
+
+ assert(!"Invalid encoding");
+ return 0;
+ }
+#else
+ PUGI__FN size_t get_valid_length(const char_t* data, size_t length)
+ {
+ assert(length > 4);
+
+ for (size_t i = 1; i <= 4; ++i)
+ {
+ uint8_t ch = static_cast<uint8_t>(data[length - i]);
+
+ // either a standalone character or a leading one
+ if ((ch & 0xc0) != 0x80) return length - i;
+ }
+
+ // there are four non-leading characters at the end, sequence tail is broken so might as well process the whole chunk
+ return length;
+ }
+
+ PUGI__FN size_t convert_buffer_output(char_t* /* r_char */, uint8_t* r_u8, uint16_t* r_u16, uint32_t* r_u32, const char_t* data, size_t length, xml_encoding encoding)
+ {
+ if (encoding == encoding_utf16_be || encoding == encoding_utf16_le)
+ {
+ uint16_t* dest = r_u16;
+
+ // convert to native utf16
+ uint16_t* end = utf_decoder<utf16_writer>::decode_utf8_block(reinterpret_cast<const uint8_t*>(data), length, dest);
+
+ // swap if necessary
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf16_le : encoding_utf16_be;
+
+ if (native_encoding != encoding) convert_utf_endian_swap(dest, dest, static_cast<size_t>(end - dest));
+
+ return static_cast<size_t>(end - dest) * sizeof(uint16_t);
+ }
+
+ if (encoding == encoding_utf32_be || encoding == encoding_utf32_le)
+ {
+ uint32_t* dest = r_u32;
+
+ // convert to native utf32
+ uint32_t* end = utf_decoder<utf32_writer>::decode_utf8_block(reinterpret_cast<const uint8_t*>(data), length, dest);
+
+ // swap if necessary
+ xml_encoding native_encoding = is_little_endian() ? encoding_utf32_le : encoding_utf32_be;
+
+ if (native_encoding != encoding) convert_utf_endian_swap(dest, dest, static_cast<size_t>(end - dest));
+
+ return static_cast<size_t>(end - dest) * sizeof(uint32_t);
+ }
+
+ if (encoding == encoding_latin1)
+ {
+ uint8_t* dest = r_u8;
+ uint8_t* end = utf_decoder<latin1_writer>::decode_utf8_block(reinterpret_cast<const uint8_t*>(data), length, dest);
+
+ return static_cast<size_t>(end - dest);
+ }
+
+ assert(!"Invalid encoding");
+ return 0;
+ }
+#endif
+
+ class xml_buffered_writer
+ {
+ xml_buffered_writer(const xml_buffered_writer&);
+ xml_buffered_writer& operator=(const xml_buffered_writer&);
+
+ public:
+ xml_buffered_writer(xml_writer& writer_, xml_encoding user_encoding): writer(writer_), bufsize(0), encoding(get_write_encoding(user_encoding))
+ {
+ PUGI__STATIC_ASSERT(bufcapacity >= 8);
+ }
+
+ ~xml_buffered_writer()
+ {
+ flush();
+ }
+
+ void flush()
+ {
+ flush(buffer, bufsize);
+ bufsize = 0;
+ }
+
+ void flush(const char_t* data, size_t size)
+ {
+ if (size == 0) return;
+
+ // fast path, just write data
+ if (encoding == get_write_native_encoding())
+ writer.write(data, size * sizeof(char_t));
+ else
+ {
+ // convert chunk
+ size_t result = convert_buffer_output(scratch.data_char, scratch.data_u8, scratch.data_u16, scratch.data_u32, data, size, encoding);
+ assert(result <= sizeof(scratch));
+
+ // write data
+ writer.write(scratch.data_u8, result);
+ }
+ }
+
+ void write(const char_t* data, size_t length)
+ {
+ if (bufsize + length > bufcapacity)
+ {
+ // flush the remaining buffer contents
+ flush();
+
+ // handle large chunks
+ if (length > bufcapacity)
+ {
+ if (encoding == get_write_native_encoding())
+ {
+ // fast path, can just write data chunk
+ writer.write(data, length * sizeof(char_t));
+ return;
+ }
+
+ // need to convert in suitable chunks
+ while (length > bufcapacity)
+ {
+ // get chunk size by selecting such number of characters that are guaranteed to fit into scratch buffer
+ // and form a complete codepoint sequence (i.e. discard start of last codepoint if necessary)
+ size_t chunk_size = get_valid_length(data, bufcapacity);
+
+ // convert chunk and write
+ flush(data, chunk_size);
+
+ // iterate
+ data += chunk_size;
+ length -= chunk_size;
+ }
+
+ // small tail is copied below
+ bufsize = 0;
+ }
+ }
+
+ memcpy(buffer + bufsize, data, length * sizeof(char_t));
+ bufsize += length;
+ }
+
+ void write(const char_t* data)
+ {
+ write(data, strlength(data));
+ }
+
+ void write(char_t d0)
+ {
+ if (bufsize + 1 > bufcapacity) flush();
+
+ buffer[bufsize + 0] = d0;
+ bufsize += 1;
+ }
+
+ void write(char_t d0, char_t d1)
+ {
+ if (bufsize + 2 > bufcapacity) flush();
+
+ buffer[bufsize + 0] = d0;
+ buffer[bufsize + 1] = d1;
+ bufsize += 2;
+ }
+
+ void write(char_t d0, char_t d1, char_t d2)
+ {
+ if (bufsize + 3 > bufcapacity) flush();
+
+ buffer[bufsize + 0] = d0;
+ buffer[bufsize + 1] = d1;
+ buffer[bufsize + 2] = d2;
+ bufsize += 3;
+ }
+
+ void write(char_t d0, char_t d1, char_t d2, char_t d3)
+ {
+ if (bufsize + 4 > bufcapacity) flush();
+
+ buffer[bufsize + 0] = d0;
+ buffer[bufsize + 1] = d1;
+ buffer[bufsize + 2] = d2;
+ buffer[bufsize + 3] = d3;
+ bufsize += 4;
+ }
+
+ void write(char_t d0, char_t d1, char_t d2, char_t d3, char_t d4)
+ {
+ if (bufsize + 5 > bufcapacity) flush();
+
+ buffer[bufsize + 0] = d0;
+ buffer[bufsize + 1] = d1;
+ buffer[bufsize + 2] = d2;
+ buffer[bufsize + 3] = d3;
+ buffer[bufsize + 4] = d4;
+ bufsize += 5;
+ }
+
+ void write(char_t d0, char_t d1, char_t d2, char_t d3, char_t d4, char_t d5)
+ {
+ if (bufsize + 6 > bufcapacity) flush();
+
+ buffer[bufsize + 0] = d0;
+ buffer[bufsize + 1] = d1;
+ buffer[bufsize + 2] = d2;
+ buffer[bufsize + 3] = d3;
+ buffer[bufsize + 4] = d4;
+ buffer[bufsize + 5] = d5;
+ bufsize += 6;
+ }
+
+ // utf8 maximum expansion: x4 (-> utf32)
+ // utf16 maximum expansion: x2 (-> utf32)
+ // utf32 maximum expansion: x1
+ enum
+ {
+ bufcapacitybytes =
+ #ifdef PUGIXML_MEMORY_OUTPUT_STACK
+ PUGIXML_MEMORY_OUTPUT_STACK
+ #else
+ 10240
+ #endif
+ ,
+ bufcapacity = bufcapacitybytes / (sizeof(char_t) + 4)
+ };
+
+ char_t buffer[bufcapacity];
+
+ union
+ {
+ uint8_t data_u8[4 * bufcapacity];
+ uint16_t data_u16[2 * bufcapacity];
+ uint32_t data_u32[bufcapacity];
+ char_t data_char[bufcapacity];
+ } scratch;
+
+ xml_writer& writer;
+ size_t bufsize;
+ xml_encoding encoding;
+ };
+
+ PUGI__FN void text_output_escaped(xml_buffered_writer& writer, const char_t* s, chartypex_t type)
+ {
+ while (*s)
+ {
+ const char_t* prev = s;
+
+ // While *s is a usual symbol
+ while (!PUGI__IS_CHARTYPEX(*s, type)) ++s;
+
+ writer.write(prev, static_cast<size_t>(s - prev));
+
+ switch (*s)
+ {
+ case 0: break;
+ case '&':
+ writer.write('&', 'a', 'm', 'p', ';');
+ ++s;
+ break;
+ case '<':
+ writer.write('&', 'l', 't', ';');
+ ++s;
+ break;
+ case '>':
+ writer.write('&', 'g', 't', ';');
+ ++s;
+ break;
+ case '"':
+ writer.write('&', 'q', 'u', 'o', 't', ';');
+ ++s;
+ break;
+ default: // s is not a usual symbol
+ {
+ unsigned int ch = static_cast<unsigned int>(*s++);
+ assert(ch < 32);
+
+ writer.write('&', '#', static_cast<char_t>((ch / 10) + '0'), static_cast<char_t>((ch % 10) + '0'), ';');
+ }
+ }
+ }
+ }
+
+ PUGI__FN void text_output(xml_buffered_writer& writer, const char_t* s, chartypex_t type, unsigned int flags)
+ {
+ if (flags & format_no_escapes)
+ writer.write(s);
+ else
+ text_output_escaped(writer, s, type);
+ }
+
+ PUGI__FN void text_output_cdata(xml_buffered_writer& writer, const char_t* s)
+ {
+ do
+ {
+ writer.write('<', '!', '[', 'C', 'D');
+ writer.write('A', 'T', 'A', '[');
+
+ const char_t* prev = s;
+
+ // look for ]]> sequence - we can't output it as is since it terminates CDATA
+ while (*s && !(s[0] == ']' && s[1] == ']' && s[2] == '>')) ++s;
+
+ // skip ]] if we stopped at ]]>, > will go to the next CDATA section
+ if (*s) s += 2;
+
+ writer.write(prev, static_cast<size_t>(s - prev));
+
+ writer.write(']', ']', '>');
+ }
+ while (*s);
+ }
+
+ PUGI__FN void node_output_attributes(xml_buffered_writer& writer, const xml_node& node, unsigned int flags)
+ {
+ const char_t* default_name = PUGIXML_TEXT(":anonymous");
+
+ for (xml_attribute a = node.first_attribute(); a; a = a.next_attribute())
+ {
+ writer.write(' ');
+ writer.write(a.name()[0] ? a.name() : default_name);
+ writer.write('=', '"');
+
+ text_output(writer, a.value(), ctx_special_attr, flags);
+
+ writer.write('"');
+ }
+ }
+
+ PUGI__FN void node_output(xml_buffered_writer& writer, const xml_node& node, const char_t* indent, unsigned int flags, unsigned int depth)
+ {
+ const char_t* default_name = PUGIXML_TEXT(":anonymous");
+
+ if ((flags & format_indent) != 0 && (flags & format_raw) == 0)
+ for (unsigned int i = 0; i < depth; ++i) writer.write(indent);
+
+ switch (node.type())
+ {
+ case node_document:
+ {
+ for (xml_node n = node.first_child(); n; n = n.next_sibling())
+ node_output(writer, n, indent, flags, depth);
+ break;
+ }
+
+ case node_element:
+ {
+ const char_t* name = node.name()[0] ? node.name() : default_name;
+
+ writer.write('<');
+ writer.write(name);
+
+ node_output_attributes(writer, node, flags);
+
+ if (flags & format_raw)
+ {
+ if (!node.first_child())
+ writer.write(' ', '/', '>');
+ else
+ {
+ writer.write('>');
+
+ for (xml_node n = node.first_child(); n; n = n.next_sibling())
+ node_output(writer, n, indent, flags, depth + 1);
+
+ writer.write('<', '/');
+ writer.write(name);
+ writer.write('>');
+ }
+ }
+ else if (!node.first_child())
+ writer.write(' ', '/', '>', '\n');
+ else if (node.first_child() == node.last_child() && (node.first_child().type() == node_pcdata || node.first_child().type() == node_cdata))
+ {
+ writer.write('>');
+
+ if (node.first_child().type() == node_pcdata)
+ text_output(writer, node.first_child().value(), ctx_special_pcdata, flags);
+ else
+ text_output_cdata(writer, node.first_child().value());
+
+ writer.write('<', '/');
+ writer.write(name);
+ writer.write('>', '\n');
+ }
+ else
+ {
+ writer.write('>', '\n');
+
+ for (xml_node n = node.first_child(); n; n = n.next_sibling())
+ node_output(writer, n, indent, flags, depth + 1);
+
+ if ((flags & format_indent) != 0 && (flags & format_raw) == 0)
+ for (unsigned int i = 0; i < depth; ++i) writer.write(indent);
+
+ writer.write('<', '/');
+ writer.write(name);
+ writer.write('>', '\n');
+ }
+
+ break;
+ }
+
+ case node_pcdata:
+ text_output(writer, node.value(), ctx_special_pcdata, flags);
+ if ((flags & format_raw) == 0) writer.write('\n');
+ break;
+
+ case node_cdata:
+ text_output_cdata(writer, node.value());
+ if ((flags & format_raw) == 0) writer.write('\n');
+ break;
+
+ case node_comment:
+ writer.write('<', '!', '-', '-');
+ writer.write(node.value());
+ writer.write('-', '-', '>');
+ if ((flags & format_raw) == 0) writer.write('\n');
+ break;
+
+ case node_pi:
+ case node_declaration:
+ writer.write('<', '?');
+ writer.write(node.name()[0] ? node.name() : default_name);
+
+ if (node.type() == node_declaration)
+ {
+ node_output_attributes(writer, node, flags);
+ }
+ else if (node.value()[0])
+ {
+ writer.write(' ');
+ writer.write(node.value());
+ }
+
+ writer.write('?', '>');
+ if ((flags & format_raw) == 0) writer.write('\n');
+ break;
+
+ case node_doctype:
+ writer.write('<', '!', 'D', 'O', 'C');
+ writer.write('T', 'Y', 'P', 'E');
+
+ if (node.value()[0])
+ {
+ writer.write(' ');
+ writer.write(node.value());
+ }
+
+ writer.write('>');
+ if ((flags & format_raw) == 0) writer.write('\n');
+ break;
+
+ default:
+ assert(!"Invalid node type");
+ }
+ }
+
+ inline bool has_declaration(const xml_node& node)
+ {
+ for (xml_node child = node.first_child(); child; child = child.next_sibling())
+ {
+ xml_node_type type = child.type();
+
+ if (type == node_declaration) return true;
+ if (type == node_element) return false;
+ }
+
+ return false;
+ }
+
+ inline bool allow_insert_child(xml_node_type parent, xml_node_type child)
+ {
+ if (parent != node_document && parent != node_element) return false;
+ if (child == node_document || child == node_null) return false;
+ if (parent != node_document && (child == node_declaration || child == node_doctype)) return false;
+
+ return true;
+ }
+
+ PUGI__FN void recursive_copy_skip(xml_node& dest, const xml_node& source, const xml_node& skip)
+ {
+ assert(dest.type() == source.type());
+
+ switch (source.type())
+ {
+ case node_element:
+ {
+ dest.set_name(source.name());
+
+ for (xml_attribute a = source.first_attribute(); a; a = a.next_attribute())
+ dest.append_attribute(a.name()).set_value(a.value());
+
+ for (xml_node c = source.first_child(); c; c = c.next_sibling())
+ {
+ if (c == skip) continue;
+
+ xml_node cc = dest.append_child(c.type());
+ assert(cc);
+
+ recursive_copy_skip(cc, c, skip);
+ }
+
+ break;
+ }
+
+ case node_pcdata:
+ case node_cdata:
+ case node_comment:
+ case node_doctype:
+ dest.set_value(source.value());
+ break;
+
+ case node_pi:
+ dest.set_name(source.name());
+ dest.set_value(source.value());
+ break;
+
+ case node_declaration:
+ {
+ dest.set_name(source.name());
+
+ for (xml_attribute a = source.first_attribute(); a; a = a.next_attribute())
+ dest.append_attribute(a.name()).set_value(a.value());
+
+ break;
+ }
+
+ default:
+ assert(!"Invalid node type");
+ }
+ }
+
+ inline bool is_text_node(xml_node_struct* node)
+ {
+ xml_node_type type = static_cast<xml_node_type>((node->header & impl::xml_memory_page_type_mask) + 1);
+
+ return type == node_pcdata || type == node_cdata;
+ }
+
+ // get value with conversion functions
+ PUGI__FN int get_integer_base(const char_t* value)
+ {
+ const char_t* s = value;
+
+ while (PUGI__IS_CHARTYPE(*s, ct_space))
+ s++;
+
+ if (*s == '-')
+ s++;
+
+ return (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) ? 16 : 10;
+ }
+
+ PUGI__FN int get_value_int(const char_t* value, int def)
+ {
+ if (!value) return def;
+
+ int base = get_integer_base(value);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return static_cast<int>(wcstol(value, 0, base));
+ #else
+ return static_cast<int>(strtol(value, 0, base));
+ #endif
+ }
+
+ PUGI__FN unsigned int get_value_uint(const char_t* value, unsigned int def)
+ {
+ if (!value) return def;
+
+ int base = get_integer_base(value);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return static_cast<unsigned int>(wcstoul(value, 0, base));
+ #else
+ return static_cast<unsigned int>(strtoul(value, 0, base));
+ #endif
+ }
+
+ PUGI__FN double get_value_double(const char_t* value, double def)
+ {
+ if (!value) return def;
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return wcstod(value, 0);
+ #else
+ return strtod(value, 0);
+ #endif
+ }
+
+ PUGI__FN float get_value_float(const char_t* value, float def)
+ {
+ if (!value) return def;
+
+ #ifdef PUGIXML_WCHAR_MODE
+ return static_cast<float>(wcstod(value, 0));
+ #else
+ return static_cast<float>(strtod(value, 0));
+ #endif
+ }
+
+ PUGI__FN bool get_value_bool(const char_t* value, bool def)
+ {
+ if (!value) return def;
+
+ // only look at first char
+ char_t first = *value;
+
+ // 1*, t* (true), T* (True), y* (yes), Y* (YES)
+ return (first == '1' || first == 't' || first == 'T' || first == 'y' || first == 'Y');
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN long long get_value_llong(const char_t* value, long long def)
+ {
+ if (!value) return def;
+
+ int base = get_integer_base(value);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ #ifdef PUGI__MSVC_CRT_VERSION
+ return _wcstoi64(value, 0, base);
+ #else
+ return wcstoll(value, 0, base);
+ #endif
+ #else
+ #ifdef PUGI__MSVC_CRT_VERSION
+ return _strtoi64(value, 0, base);
+ #else
+ return strtoll(value, 0, base);
+ #endif
+ #endif
+ }
+
+ PUGI__FN unsigned long long get_value_ullong(const char_t* value, unsigned long long def)
+ {
+ if (!value) return def;
+
+ int base = get_integer_base(value);
+
+ #ifdef PUGIXML_WCHAR_MODE
+ #ifdef PUGI__MSVC_CRT_VERSION
+ return _wcstoui64(value, 0, base);
+ #else
+ return wcstoull(value, 0, base);
+ #endif
+ #else
+ #ifdef PUGI__MSVC_CRT_VERSION
+ return _strtoui64(value, 0, base);
+ #else
+ return strtoull(value, 0, base);
+ #endif
+ #endif
+ }
+#endif
+
+ // set value with conversion functions
+ PUGI__FN bool set_value_buffer(char_t*& dest, uintptr_t& header, uintptr_t header_mask, char (&buf)[128])
+ {
+ #ifdef PUGIXML_WCHAR_MODE
+ char_t wbuf[128];
+ impl::widen_ascii(wbuf, buf);
+
+ return strcpy_insitu(dest, header, header_mask, wbuf);
+ #else
+ return strcpy_insitu(dest, header, header_mask, buf);
+ #endif
+ }
+
+ PUGI__FN bool set_value_convert(char_t*& dest, uintptr_t& header, uintptr_t header_mask, int value)
+ {
+ char buf[128];
+ sprintf(buf, "%d", value);
+
+ return set_value_buffer(dest, header, header_mask, buf);
+ }
+
+ PUGI__FN bool set_value_convert(char_t*& dest, uintptr_t& header, uintptr_t header_mask, unsigned int value)
+ {
+ char buf[128];
+ sprintf(buf, "%u", value);
+
+ return set_value_buffer(dest, header, header_mask, buf);
+ }
+
+ PUGI__FN bool set_value_convert(char_t*& dest, uintptr_t& header, uintptr_t header_mask, double value)
+ {
+ char buf[128];
+ sprintf(buf, "%g", value);
+
+ return set_value_buffer(dest, header, header_mask, buf);
+ }
+
+ PUGI__FN bool set_value_convert(char_t*& dest, uintptr_t& header, uintptr_t header_mask, bool value)
+ {
+ return strcpy_insitu(dest, header, header_mask, value ? PUGIXML_TEXT("true") : PUGIXML_TEXT("false"));
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN bool set_value_convert(char_t*& dest, uintptr_t& header, uintptr_t header_mask, long long value)
+ {
+ char buf[128];
+ sprintf(buf, "%lld", value);
+
+ return set_value_buffer(dest, header, header_mask, buf);
+ }
+
+ PUGI__FN bool set_value_convert(char_t*& dest, uintptr_t& header, uintptr_t header_mask, unsigned long long value)
+ {
+ char buf[128];
+ sprintf(buf, "%llu", value);
+
+ return set_value_buffer(dest, header, header_mask, buf);
+ }
+#endif
+
+ // we need to get length of entire file to load it in memory; the only (relatively) sane way to do it is via seek/tell trick
+ PUGI__FN xml_parse_status get_file_size(FILE* file, size_t& out_result)
+ {
+ #if defined(PUGI__MSVC_CRT_VERSION) && PUGI__MSVC_CRT_VERSION >= 1400 && !defined(_WIN32_WCE)
+ // there are 64-bit versions of fseek/ftell, let's use them
+ typedef __int64 length_type;
+
+ _fseeki64(file, 0, SEEK_END);
+ length_type length = _ftelli64(file);
+ _fseeki64(file, 0, SEEK_SET);
+ #elif defined(__MINGW32__) && !defined(__NO_MINGW_LFS) && !defined(__STRICT_ANSI__)
+ // there are 64-bit versions of fseek/ftell, let's use them
+ typedef off64_t length_type;
+
+ fseeko64(file, 0, SEEK_END);
+ length_type length = ftello64(file);
+ fseeko64(file, 0, SEEK_SET);
+ #else
+ // if this is a 32-bit OS, long is enough; if this is a unix system, long is 64-bit, which is enough; otherwise we can't do anything anyway.
+ typedef long length_type;
+
+ fseek(file, 0, SEEK_END);
+ length_type length = ftell(file);
+ fseek(file, 0, SEEK_SET);
+ #endif
+
+ // check for I/O errors
+ if (length < 0) return status_io_error;
+
+ // check for overflow
+ size_t result = static_cast<size_t>(length);
+
+ if (static_cast<length_type>(result) != length) return status_out_of_memory;
+
+ // finalize
+ out_result = result;
+
+ return status_ok;
+ }
+
+ PUGI__FN size_t zero_terminate_buffer(void* buffer, size_t size, xml_encoding encoding)
+ {
+ // We only need to zero-terminate if encoding conversion does not do it for us
+ #ifdef PUGIXML_WCHAR_MODE
+ xml_encoding wchar_encoding = get_wchar_encoding();
+
+ if (encoding == wchar_encoding || need_endian_swap_utf(encoding, wchar_encoding))
+ {
+ size_t length = size / sizeof(char_t);
+
+ static_cast<char_t*>(buffer)[length] = 0;
+ return (length + 1) * sizeof(char_t);
+ }
+ #else
+ if (encoding == encoding_utf8)
+ {
+ static_cast<char*>(buffer)[size] = 0;
+ return size + 1;
+ }
+ #endif
+
+ return size;
+ }
+
+ PUGI__FN xml_parse_result load_file_impl(xml_document& doc, FILE* file, unsigned int options, xml_encoding encoding)
+ {
+ if (!file) return make_parse_result(status_file_not_found);
+
+ // get file size (can result in I/O errors)
+ size_t size = 0;
+ xml_parse_status size_status = get_file_size(file, size);
+
+ if (size_status != status_ok)
+ {
+ fclose(file);
+ return make_parse_result(size_status);
+ }
+
+ size_t max_suffix_size = sizeof(char_t);
+
+ // allocate buffer for the whole file
+ char* contents = static_cast<char*>(xml_memory::allocate(size + max_suffix_size));
+
+ if (!contents)
+ {
+ fclose(file);
+ return make_parse_result(status_out_of_memory);
+ }
+
+ // read file in memory
+ size_t read_size = fread(contents, 1, size, file);
+ fclose(file);
+
+ if (read_size != size)
+ {
+ xml_memory::deallocate(contents);
+ return make_parse_result(status_io_error);
+ }
+
+ xml_encoding real_encoding = get_buffer_encoding(encoding, contents, size);
+
+ return doc.load_buffer_inplace_own(contents, zero_terminate_buffer(contents, size, real_encoding), options, real_encoding);
+ }
+
+#ifndef PUGIXML_NO_STL
+ template <typename T> struct xml_stream_chunk
+ {
+ static xml_stream_chunk* create()
+ {
+ void* memory = xml_memory::allocate(sizeof(xml_stream_chunk));
+
+ return new (memory) xml_stream_chunk();
+ }
+
+ static void destroy(void* ptr)
+ {
+ xml_stream_chunk* chunk = static_cast<xml_stream_chunk*>(ptr);
+
+ // free chunk chain
+ while (chunk)
+ {
+ xml_stream_chunk* next = chunk->next;
+ xml_memory::deallocate(chunk);
+ chunk = next;
+ }
+ }
+
+ xml_stream_chunk(): next(0), size(0)
+ {
+ }
+
+ xml_stream_chunk* next;
+ size_t size;
+
+ T data[xml_memory_page_size / sizeof(T)];
+ };
+
+ template <typename T> PUGI__FN xml_parse_status load_stream_data_noseek(std::basic_istream<T>& stream, void** out_buffer, size_t* out_size)
+ {
+ buffer_holder chunks(0, xml_stream_chunk<T>::destroy);
+
+ // read file to a chunk list
+ size_t total = 0;
+ xml_stream_chunk<T>* last = 0;
+
+ while (!stream.eof())
+ {
+ // allocate new chunk
+ xml_stream_chunk<T>* chunk = xml_stream_chunk<T>::create();
+ if (!chunk) return status_out_of_memory;
+
+ // append chunk to list
+ if (last) last = last->next = chunk;
+ else chunks.data = last = chunk;
+
+ // read data to chunk
+ stream.read(chunk->data, static_cast<std::streamsize>(sizeof(chunk->data) / sizeof(T)));
+ chunk->size = static_cast<size_t>(stream.gcount()) * sizeof(T);
+
+ // read may set failbit | eofbit in case gcount() is less than read length, so check for other I/O errors
+ if (stream.bad() || (!stream.eof() && stream.fail())) return status_io_error;
+
+ // guard against huge files (chunk size is small enough to make this overflow check work)
+ if (total + chunk->size < total) return status_out_of_memory;
+ total += chunk->size;
+ }
+
+ size_t max_suffix_size = sizeof(char_t);
+
+ // copy chunk list to a contiguous buffer
+ char* buffer = static_cast<char*>(xml_memory::allocate(total + max_suffix_size));
+ if (!buffer) return status_out_of_memory;
+
+ char* write = buffer;
+
+ for (xml_stream_chunk<T>* chunk = static_cast<xml_stream_chunk<T>*>(chunks.data); chunk; chunk = chunk->next)
+ {
+ assert(write + chunk->size <= buffer + total);
+ memcpy(write, chunk->data, chunk->size);
+ write += chunk->size;
+ }
+
+ assert(write == buffer + total);
+
+ // return buffer
+ *out_buffer = buffer;
+ *out_size = total;
+
+ return status_ok;
+ }
+
+ template <typename T> PUGI__FN xml_parse_status load_stream_data_seek(std::basic_istream<T>& stream, void** out_buffer, size_t* out_size)
+ {
+ // get length of remaining data in stream
+ typename std::basic_istream<T>::pos_type pos = stream.tellg();
+ stream.seekg(0, std::ios::end);
+ std::streamoff length = stream.tellg() - pos;
+ stream.seekg(pos);
+
+ if (stream.fail() || pos < 0) return status_io_error;
+
+ // guard against huge files
+ size_t read_length = static_cast<size_t>(length);
+
+ if (static_cast<std::streamsize>(read_length) != length || length < 0) return status_out_of_memory;
+
+ size_t max_suffix_size = sizeof(char_t);
+
+ // read stream data into memory (guard against stream exceptions with buffer holder)
+ buffer_holder buffer(xml_memory::allocate(read_length * sizeof(T) + max_suffix_size), xml_memory::deallocate);
+ if (!buffer.data) return status_out_of_memory;
+
+ stream.read(static_cast<T*>(buffer.data), static_cast<std::streamsize>(read_length));
+
+ // read may set failbit | eofbit in case gcount() is less than read_length (i.e. line ending conversion), so check for other I/O errors
+ if (stream.bad() || (!stream.eof() && stream.fail())) return status_io_error;
+
+ // return buffer
+ size_t actual_length = static_cast<size_t>(stream.gcount());
+ assert(actual_length <= read_length);
+
+ *out_buffer = buffer.release();
+ *out_size = actual_length * sizeof(T);
+
+ return status_ok;
+ }
+
+ template <typename T> PUGI__FN xml_parse_result load_stream_impl(xml_document& doc, std::basic_istream<T>& stream, unsigned int options, xml_encoding encoding)
+ {
+ void* buffer = 0;
+ size_t size = 0;
+ xml_parse_status status = status_ok;
+
+ // if stream has an error bit set, bail out (otherwise tellg() can fail and we'll clear error bits)
+ if (stream.fail()) return make_parse_result(status_io_error);
+
+ // load stream to memory (using seek-based implementation if possible, since it's faster and takes less memory)
+ if (stream.tellg() < 0)
+ {
+ stream.clear(); // clear error flags that could be set by a failing tellg
+ status = load_stream_data_noseek(stream, &buffer, &size);
+ }
+ else
+ status = load_stream_data_seek(stream, &buffer, &size);
+
+ if (status != status_ok) return make_parse_result(status);
+
+ xml_encoding real_encoding = get_buffer_encoding(encoding, buffer, size);
+
+ return doc.load_buffer_inplace_own(buffer, zero_terminate_buffer(buffer, size, real_encoding), options, real_encoding);
+ }
+#endif
+
+#if defined(PUGI__MSVC_CRT_VERSION) || defined(__BORLANDC__) || (defined(__MINGW32__) && !defined(__STRICT_ANSI__))
+ PUGI__FN FILE* open_file_wide(const wchar_t* path, const wchar_t* mode)
+ {
+ return _wfopen(path, mode);
+ }
+#else
+ PUGI__FN char* convert_path_heap(const wchar_t* str)
+ {
+ assert(str);
+
+ // first pass: get length in utf8 characters
+ size_t length = strlength_wide(str);
+ size_t size = as_utf8_begin(str, length);
+
+ // allocate resulting string
+ char* result = static_cast<char*>(xml_memory::allocate(size + 1));
+ if (!result) return 0;
+
+ // second pass: convert to utf8
+ as_utf8_end(result, size, str, length);
+
+ return result;
+ }
+
+ PUGI__FN FILE* open_file_wide(const wchar_t* path, const wchar_t* mode)
+ {
+ // there is no standard function to open wide paths, so our best bet is to try utf8 path
+ char* path_utf8 = convert_path_heap(path);
+ if (!path_utf8) return 0;
+
+ // convert mode to ASCII (we mirror _wfopen interface)
+ char mode_ascii[4] = {0};
+ for (size_t i = 0; mode[i]; ++i) mode_ascii[i] = static_cast<char>(mode[i]);
+
+ // try to open the utf8 path
+ FILE* result = fopen(path_utf8, mode_ascii);
+
+ // free dummy buffer
+ xml_memory::deallocate(path_utf8);
+
+ return result;
+ }
+#endif
+
+ PUGI__FN bool save_file_impl(const xml_document& doc, FILE* file, const char_t* indent, unsigned int flags, xml_encoding encoding)
+ {
+ if (!file) return false;
+
+ xml_writer_file writer(file);
+ doc.save(writer, indent, flags, encoding);
+
+ int result = ferror(file);
+
+ fclose(file);
+
+ return result == 0;
+ }
+
+ PUGI__FN xml_parse_result load_buffer_impl(xml_document_struct* doc, xml_node_struct* root, void* contents, size_t size, unsigned int options, xml_encoding encoding, bool is_mutable, bool own, char_t** out_buffer)
+ {
+ // check input buffer
+ assert(contents || size == 0);
+
+ // get actual encoding
+ xml_encoding buffer_encoding = impl::get_buffer_encoding(encoding, contents, size);
+
+ // get private buffer
+ char_t* buffer = 0;
+ size_t length = 0;
+
+ if (!impl::convert_buffer(buffer, length, buffer_encoding, contents, size, is_mutable)) return impl::make_parse_result(status_out_of_memory);
+
+ // delete original buffer if we performed a conversion
+ if (own && buffer != contents && contents) impl::xml_memory::deallocate(contents);
+
+ // store buffer for offset_debug
+ doc->buffer = buffer;
+
+ // parse
+ xml_parse_result res = impl::xml_parser::parse(buffer, length, doc, root, options);
+
+ // remember encoding
+ res.encoding = buffer_encoding;
+
+ // grab onto buffer if it's our buffer, user is responsible for deallocating contents himself
+ if (own || buffer != contents) *out_buffer = buffer;
+
+ return res;
+ }
+PUGI__NS_END
+
+namespace pugi
+{
+ PUGI__FN xml_writer_file::xml_writer_file(void* file_): file(file_)
+ {
+ }
+
+ PUGI__FN void xml_writer_file::write(const void* data, size_t size)
+ {
+ size_t result = fwrite(data, 1, size, static_cast<FILE*>(file));
+ (void)!result; // unfortunately we can't do proper error handling here
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN xml_writer_stream::xml_writer_stream(std::basic_ostream<char, std::char_traits<char> >& stream): narrow_stream(&stream), wide_stream(0)
+ {
+ }
+
+ PUGI__FN xml_writer_stream::xml_writer_stream(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream): narrow_stream(0), wide_stream(&stream)
+ {
+ }
+
+ PUGI__FN void xml_writer_stream::write(const void* data, size_t size)
+ {
+ if (narrow_stream)
+ {
+ assert(!wide_stream);
+ narrow_stream->write(reinterpret_cast<const char*>(data), static_cast<std::streamsize>(size));
+ }
+ else
+ {
+ assert(wide_stream);
+ assert(size % sizeof(wchar_t) == 0);
+
+ wide_stream->write(reinterpret_cast<const wchar_t*>(data), static_cast<std::streamsize>(size / sizeof(wchar_t)));
+ }
+ }
+#endif
+
+ PUGI__FN xml_tree_walker::xml_tree_walker(): _depth(0)
+ {
+ }
+
+ PUGI__FN xml_tree_walker::~xml_tree_walker()
+ {
+ }
+
+ PUGI__FN int xml_tree_walker::depth() const
+ {
+ return _depth;
+ }
+
+ PUGI__FN bool xml_tree_walker::begin(xml_node&)
+ {
+ return true;
+ }
+
+ PUGI__FN bool xml_tree_walker::end(xml_node&)
+ {
+ return true;
+ }
+
+ PUGI__FN xml_attribute::xml_attribute(): _attr(0)
+ {
+ }
+
+ PUGI__FN xml_attribute::xml_attribute(xml_attribute_struct* attr): _attr(attr)
+ {
+ }
+
+ PUGI__FN static void unspecified_bool_xml_attribute(xml_attribute***)
+ {
+ }
+
+ PUGI__FN xml_attribute::operator xml_attribute::unspecified_bool_type() const
+ {
+ return _attr ? unspecified_bool_xml_attribute : 0;
+ }
+
+ PUGI__FN bool xml_attribute::operator!() const
+ {
+ return !_attr;
+ }
+
+ PUGI__FN bool xml_attribute::operator==(const xml_attribute& r) const
+ {
+ return (_attr == r._attr);
+ }
+
+ PUGI__FN bool xml_attribute::operator!=(const xml_attribute& r) const
+ {
+ return (_attr != r._attr);
+ }
+
+ PUGI__FN bool xml_attribute::operator<(const xml_attribute& r) const
+ {
+ return (_attr < r._attr);
+ }
+
+ PUGI__FN bool xml_attribute::operator>(const xml_attribute& r) const
+ {
+ return (_attr > r._attr);
+ }
+
+ PUGI__FN bool xml_attribute::operator<=(const xml_attribute& r) const
+ {
+ return (_attr <= r._attr);
+ }
+
+ PUGI__FN bool xml_attribute::operator>=(const xml_attribute& r) const
+ {
+ return (_attr >= r._attr);
+ }
+
+ PUGI__FN xml_attribute xml_attribute::next_attribute() const
+ {
+ return _attr ? xml_attribute(_attr->next_attribute) : xml_attribute();
+ }
+
+ PUGI__FN xml_attribute xml_attribute::previous_attribute() const
+ {
+ return _attr && _attr->prev_attribute_c->next_attribute ? xml_attribute(_attr->prev_attribute_c) : xml_attribute();
+ }
+
+ PUGI__FN const char_t* xml_attribute::as_string(const char_t* def) const
+ {
+ return (_attr && _attr->value) ? _attr->value : def;
+ }
+
+ PUGI__FN int xml_attribute::as_int(int def) const
+ {
+ return impl::get_value_int(_attr ? _attr->value : 0, def);
+ }
+
+ PUGI__FN unsigned int xml_attribute::as_uint(unsigned int def) const
+ {
+ return impl::get_value_uint(_attr ? _attr->value : 0, def);
+ }
+
+ PUGI__FN double xml_attribute::as_double(double def) const
+ {
+ return impl::get_value_double(_attr ? _attr->value : 0, def);
+ }
+
+ PUGI__FN float xml_attribute::as_float(float def) const
+ {
+ return impl::get_value_float(_attr ? _attr->value : 0, def);
+ }
+
+ PUGI__FN bool xml_attribute::as_bool(bool def) const
+ {
+ return impl::get_value_bool(_attr ? _attr->value : 0, def);
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN long long xml_attribute::as_llong(long long def) const
+ {
+ return impl::get_value_llong(_attr ? _attr->value : 0, def);
+ }
+
+ PUGI__FN unsigned long long xml_attribute::as_ullong(unsigned long long def) const
+ {
+ return impl::get_value_ullong(_attr ? _attr->value : 0, def);
+ }
+#endif
+
+ PUGI__FN bool xml_attribute::empty() const
+ {
+ return !_attr;
+ }
+
+ PUGI__FN const char_t* xml_attribute::name() const
+ {
+ return (_attr && _attr->name) ? _attr->name : PUGIXML_TEXT("");
+ }
+
+ PUGI__FN const char_t* xml_attribute::value() const
+ {
+ return (_attr && _attr->value) ? _attr->value : PUGIXML_TEXT("");
+ }
+
+ PUGI__FN size_t xml_attribute::hash_value() const
+ {
+ return static_cast<size_t>(reinterpret_cast<uintptr_t>(_attr) / sizeof(xml_attribute_struct));
+ }
+
+ PUGI__FN xml_attribute_struct* xml_attribute::internal_object() const
+ {
+ return _attr;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute::operator=(const char_t* rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute::operator=(int rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute::operator=(unsigned int rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute::operator=(double rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute::operator=(bool rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN xml_attribute& xml_attribute::operator=(long long rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute::operator=(unsigned long long rhs)
+ {
+ set_value(rhs);
+ return *this;
+ }
+#endif
+
+ PUGI__FN bool xml_attribute::set_name(const char_t* rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::strcpy_insitu(_attr->name, _attr->header, impl::xml_memory_page_name_allocated_mask, rhs);
+ }
+
+ PUGI__FN bool xml_attribute::set_value(const char_t* rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::strcpy_insitu(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+
+ PUGI__FN bool xml_attribute::set_value(int rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::set_value_convert(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+
+ PUGI__FN bool xml_attribute::set_value(unsigned int rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::set_value_convert(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+
+ PUGI__FN bool xml_attribute::set_value(double rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::set_value_convert(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+
+ PUGI__FN bool xml_attribute::set_value(bool rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::set_value_convert(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN bool xml_attribute::set_value(long long rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::set_value_convert(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+
+ PUGI__FN bool xml_attribute::set_value(unsigned long long rhs)
+ {
+ if (!_attr) return false;
+
+ return impl::set_value_convert(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs);
+ }
+#endif
+
+#ifdef __BORLANDC__
+ PUGI__FN bool operator&&(const xml_attribute& lhs, bool rhs)
+ {
+ return (bool)lhs && rhs;
+ }
+
+ PUGI__FN bool operator||(const xml_attribute& lhs, bool rhs)
+ {
+ return (bool)lhs || rhs;
+ }
+#endif
+
+ PUGI__FN xml_node::xml_node(): _root(0)
+ {
+ }
+
+ PUGI__FN xml_node::xml_node(xml_node_struct* p): _root(p)
+ {
+ }
+
+ PUGI__FN static void unspecified_bool_xml_node(xml_node***)
+ {
+ }
+
+ PUGI__FN xml_node::operator xml_node::unspecified_bool_type() const
+ {
+ return _root ? unspecified_bool_xml_node : 0;
+ }
+
+ PUGI__FN bool xml_node::operator!() const
+ {
+ return !_root;
+ }
+
+ PUGI__FN xml_node::iterator xml_node::begin() const
+ {
+ return iterator(_root ? _root->first_child : 0, _root);
+ }
+
+ PUGI__FN xml_node::iterator xml_node::end() const
+ {
+ return iterator(0, _root);
+ }
+
+ PUGI__FN xml_node::attribute_iterator xml_node::attributes_begin() const
+ {
+ return attribute_iterator(_root ? _root->first_attribute : 0, _root);
+ }
+
+ PUGI__FN xml_node::attribute_iterator xml_node::attributes_end() const
+ {
+ return attribute_iterator(0, _root);
+ }
+
+ PUGI__FN xml_object_range<xml_node_iterator> xml_node::children() const
+ {
+ return xml_object_range<xml_node_iterator>(begin(), end());
+ }
+
+ PUGI__FN xml_object_range<xml_named_node_iterator> xml_node::children(const char_t* name_) const
+ {
+ return xml_object_range<xml_named_node_iterator>(xml_named_node_iterator(child(name_)._root, _root, name_), xml_named_node_iterator(0, _root, name_));
+ }
+
+ PUGI__FN xml_object_range<xml_attribute_iterator> xml_node::attributes() const
+ {
+ return xml_object_range<xml_attribute_iterator>(attributes_begin(), attributes_end());
+ }
+
+ PUGI__FN bool xml_node::operator==(const xml_node& r) const
+ {
+ return (_root == r._root);
+ }
+
+ PUGI__FN bool xml_node::operator!=(const xml_node& r) const
+ {
+ return (_root != r._root);
+ }
+
+ PUGI__FN bool xml_node::operator<(const xml_node& r) const
+ {
+ return (_root < r._root);
+ }
+
+ PUGI__FN bool xml_node::operator>(const xml_node& r) const
+ {
+ return (_root > r._root);
+ }
+
+ PUGI__FN bool xml_node::operator<=(const xml_node& r) const
+ {
+ return (_root <= r._root);
+ }
+
+ PUGI__FN bool xml_node::operator>=(const xml_node& r) const
+ {
+ return (_root >= r._root);
+ }
+
+ PUGI__FN bool xml_node::empty() const
+ {
+ return !_root;
+ }
+
+ PUGI__FN const char_t* xml_node::name() const
+ {
+ return (_root && _root->name) ? _root->name : PUGIXML_TEXT("");
+ }
+
+ PUGI__FN xml_node_type xml_node::type() const
+ {
+ return _root ? static_cast<xml_node_type>((_root->header & impl::xml_memory_page_type_mask) + 1) : node_null;
+ }
+
+ PUGI__FN const char_t* xml_node::value() const
+ {
+ return (_root && _root->value) ? _root->value : PUGIXML_TEXT("");
+ }
+
+ PUGI__FN xml_node xml_node::child(const char_t* name_) const
+ {
+ if (!_root) return xml_node();
+
+ for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+ if (i->name && impl::strequal(name_, i->name)) return xml_node(i);
+
+ return xml_node();
+ }
+
+ PUGI__FN xml_attribute xml_node::attribute(const char_t* name_) const
+ {
+ if (!_root) return xml_attribute();
+
+ for (xml_attribute_struct* i = _root->first_attribute; i; i = i->next_attribute)
+ if (i->name && impl::strequal(name_, i->name))
+ return xml_attribute(i);
+
+ return xml_attribute();
+ }
+
+ PUGI__FN xml_node xml_node::next_sibling(const char_t* name_) const
+ {
+ if (!_root) return xml_node();
+
+ for (xml_node_struct* i = _root->next_sibling; i; i = i->next_sibling)
+ if (i->name && impl::strequal(name_, i->name)) return xml_node(i);
+
+ return xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::next_sibling() const
+ {
+ if (!_root) return xml_node();
+
+ if (_root->next_sibling) return xml_node(_root->next_sibling);
+ else return xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::previous_sibling(const char_t* name_) const
+ {
+ if (!_root) return xml_node();
+
+ for (xml_node_struct* i = _root->prev_sibling_c; i->next_sibling; i = i->prev_sibling_c)
+ if (i->name && impl::strequal(name_, i->name)) return xml_node(i);
+
+ return xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::previous_sibling() const
+ {
+ if (!_root) return xml_node();
+
+ if (_root->prev_sibling_c->next_sibling) return xml_node(_root->prev_sibling_c);
+ else return xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::parent() const
+ {
+ return _root ? xml_node(_root->parent) : xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::root() const
+ {
+ if (!_root) return xml_node();
+
+ impl::xml_memory_page* page = reinterpret_cast<impl::xml_memory_page*>(_root->header & impl::xml_memory_page_pointer_mask);
+
+ return xml_node(static_cast<impl::xml_document_struct*>(page->allocator));
+ }
+
+ PUGI__FN xml_text xml_node::text() const
+ {
+ return xml_text(_root);
+ }
+
+ PUGI__FN const char_t* xml_node::child_value() const
+ {
+ if (!_root) return PUGIXML_TEXT("");
+
+ for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+ if (i->value && impl::is_text_node(i))
+ return i->value;
+
+ return PUGIXML_TEXT("");
+ }
+
+ PUGI__FN const char_t* xml_node::child_value(const char_t* name_) const
+ {
+ return child(name_).child_value();
+ }
+
+ PUGI__FN xml_attribute xml_node::first_attribute() const
+ {
+ return _root ? xml_attribute(_root->first_attribute) : xml_attribute();
+ }
+
+ PUGI__FN xml_attribute xml_node::last_attribute() const
+ {
+ return _root && _root->first_attribute ? xml_attribute(_root->first_attribute->prev_attribute_c) : xml_attribute();
+ }
+
+ PUGI__FN xml_node xml_node::first_child() const
+ {
+ return _root ? xml_node(_root->first_child) : xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::last_child() const
+ {
+ return _root && _root->first_child ? xml_node(_root->first_child->prev_sibling_c) : xml_node();
+ }
+
+ PUGI__FN bool xml_node::set_name(const char_t* rhs)
+ {
+ switch (type())
+ {
+ case node_pi:
+ case node_declaration:
+ case node_element:
+ return impl::strcpy_insitu(_root->name, _root->header, impl::xml_memory_page_name_allocated_mask, rhs);
+
+ default:
+ return false;
+ }
+ }
+
+ PUGI__FN bool xml_node::set_value(const char_t* rhs)
+ {
+ switch (type())
+ {
+ case node_pi:
+ case node_cdata:
+ case node_pcdata:
+ case node_comment:
+ case node_doctype:
+ return impl::strcpy_insitu(_root->value, _root->header, impl::xml_memory_page_value_allocated_mask, rhs);
+
+ default:
+ return false;
+ }
+ }
+
+ PUGI__FN xml_attribute xml_node::append_attribute(const char_t* name_)
+ {
+ if (type() != node_element && type() != node_declaration) return xml_attribute();
+
+ xml_attribute a(impl::append_attribute_ll(_root, impl::get_allocator(_root)));
+ a.set_name(name_);
+
+ return a;
+ }
+
+ PUGI__FN xml_attribute xml_node::prepend_attribute(const char_t* name_)
+ {
+ if (type() != node_element && type() != node_declaration) return xml_attribute();
+
+ xml_attribute a(impl::allocate_attribute(impl::get_allocator(_root)));
+ if (!a) return xml_attribute();
+
+ a.set_name(name_);
+
+ xml_attribute_struct* head = _root->first_attribute;
+
+ if (head)
+ {
+ a._attr->prev_attribute_c = head->prev_attribute_c;
+ head->prev_attribute_c = a._attr;
+ }
+ else
+ a._attr->prev_attribute_c = a._attr;
+
+ a._attr->next_attribute = head;
+ _root->first_attribute = a._attr;
+
+ return a;
+ }
+
+ PUGI__FN xml_attribute xml_node::insert_attribute_before(const char_t* name_, const xml_attribute& attr)
+ {
+ if ((type() != node_element && type() != node_declaration) || attr.empty()) return xml_attribute();
+
+ // check that attribute belongs to *this
+ xml_attribute_struct* cur = attr._attr;
+
+ while (cur->prev_attribute_c->next_attribute) cur = cur->prev_attribute_c;
+
+ if (cur != _root->first_attribute) return xml_attribute();
+
+ xml_attribute a(impl::allocate_attribute(impl::get_allocator(_root)));
+ if (!a) return xml_attribute();
+
+ a.set_name(name_);
+
+ if (attr._attr->prev_attribute_c->next_attribute)
+ attr._attr->prev_attribute_c->next_attribute = a._attr;
+ else
+ _root->first_attribute = a._attr;
+
+ a._attr->prev_attribute_c = attr._attr->prev_attribute_c;
+ a._attr->next_attribute = attr._attr;
+ attr._attr->prev_attribute_c = a._attr;
+
+ return a;
+ }
+
+ PUGI__FN xml_attribute xml_node::insert_attribute_after(const char_t* name_, const xml_attribute& attr)
+ {
+ if ((type() != node_element && type() != node_declaration) || attr.empty()) return xml_attribute();
+
+ // check that attribute belongs to *this
+ xml_attribute_struct* cur = attr._attr;
+
+ while (cur->prev_attribute_c->next_attribute) cur = cur->prev_attribute_c;
+
+ if (cur != _root->first_attribute) return xml_attribute();
+
+ xml_attribute a(impl::allocate_attribute(impl::get_allocator(_root)));
+ if (!a) return xml_attribute();
+
+ a.set_name(name_);
+
+ if (attr._attr->next_attribute)
+ attr._attr->next_attribute->prev_attribute_c = a._attr;
+ else
+ _root->first_attribute->prev_attribute_c = a._attr;
+
+ a._attr->next_attribute = attr._attr->next_attribute;
+ a._attr->prev_attribute_c = attr._attr;
+ attr._attr->next_attribute = a._attr;
+
+ return a;
+ }
+
+ PUGI__FN xml_attribute xml_node::append_copy(const xml_attribute& proto)
+ {
+ if (!proto) return xml_attribute();
+
+ xml_attribute result = append_attribute(proto.name());
+ result.set_value(proto.value());
+
+ return result;
+ }
+
+ PUGI__FN xml_attribute xml_node::prepend_copy(const xml_attribute& proto)
+ {
+ if (!proto) return xml_attribute();
+
+ xml_attribute result = prepend_attribute(proto.name());
+ result.set_value(proto.value());
+
+ return result;
+ }
+
+ PUGI__FN xml_attribute xml_node::insert_copy_after(const xml_attribute& proto, const xml_attribute& attr)
+ {
+ if (!proto) return xml_attribute();
+
+ xml_attribute result = insert_attribute_after(proto.name(), attr);
+ result.set_value(proto.value());
+
+ return result;
+ }
+
+ PUGI__FN xml_attribute xml_node::insert_copy_before(const xml_attribute& proto, const xml_attribute& attr)
+ {
+ if (!proto) return xml_attribute();
+
+ xml_attribute result = insert_attribute_before(proto.name(), attr);
+ result.set_value(proto.value());
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::append_child(xml_node_type type_)
+ {
+ if (!impl::allow_insert_child(this->type(), type_)) return xml_node();
+
+ xml_node n(impl::append_node(_root, impl::get_allocator(_root), type_));
+
+ if (type_ == node_declaration) n.set_name(PUGIXML_TEXT("xml"));
+
+ return n;
+ }
+
+ PUGI__FN xml_node xml_node::prepend_child(xml_node_type type_)
+ {
+ if (!impl::allow_insert_child(this->type(), type_)) return xml_node();
+
+ xml_node n(impl::allocate_node(impl::get_allocator(_root), type_));
+ if (!n) return xml_node();
+
+ n._root->parent = _root;
+
+ xml_node_struct* head = _root->first_child;
+
+ if (head)
+ {
+ n._root->prev_sibling_c = head->prev_sibling_c;
+ head->prev_sibling_c = n._root;
+ }
+ else
+ n._root->prev_sibling_c = n._root;
+
+ n._root->next_sibling = head;
+ _root->first_child = n._root;
+
+ if (type_ == node_declaration) n.set_name(PUGIXML_TEXT("xml"));
+
+ return n;
+ }
+
+ PUGI__FN xml_node xml_node::insert_child_before(xml_node_type type_, const xml_node& node)
+ {
+ if (!impl::allow_insert_child(this->type(), type_)) return xml_node();
+ if (!node._root || node._root->parent != _root) return xml_node();
+
+ xml_node n(impl::allocate_node(impl::get_allocator(_root), type_));
+ if (!n) return xml_node();
+
+ n._root->parent = _root;
+
+ if (node._root->prev_sibling_c->next_sibling)
+ node._root->prev_sibling_c->next_sibling = n._root;
+ else
+ _root->first_child = n._root;
+
+ n._root->prev_sibling_c = node._root->prev_sibling_c;
+ n._root->next_sibling = node._root;
+ node._root->prev_sibling_c = n._root;
+
+ if (type_ == node_declaration) n.set_name(PUGIXML_TEXT("xml"));
+
+ return n;
+ }
+
+ PUGI__FN xml_node xml_node::insert_child_after(xml_node_type type_, const xml_node& node)
+ {
+ if (!impl::allow_insert_child(this->type(), type_)) return xml_node();
+ if (!node._root || node._root->parent != _root) return xml_node();
+
+ xml_node n(impl::allocate_node(impl::get_allocator(_root), type_));
+ if (!n) return xml_node();
+
+ n._root->parent = _root;
+
+ if (node._root->next_sibling)
+ node._root->next_sibling->prev_sibling_c = n._root;
+ else
+ _root->first_child->prev_sibling_c = n._root;
+
+ n._root->next_sibling = node._root->next_sibling;
+ n._root->prev_sibling_c = node._root;
+ node._root->next_sibling = n._root;
+
+ if (type_ == node_declaration) n.set_name(PUGIXML_TEXT("xml"));
+
+ return n;
+ }
+
+ PUGI__FN xml_node xml_node::append_child(const char_t* name_)
+ {
+ xml_node result = append_child(node_element);
+
+ result.set_name(name_);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::prepend_child(const char_t* name_)
+ {
+ xml_node result = prepend_child(node_element);
+
+ result.set_name(name_);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::insert_child_after(const char_t* name_, const xml_node& node)
+ {
+ xml_node result = insert_child_after(node_element, node);
+
+ result.set_name(name_);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::insert_child_before(const char_t* name_, const xml_node& node)
+ {
+ xml_node result = insert_child_before(node_element, node);
+
+ result.set_name(name_);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::append_copy(const xml_node& proto)
+ {
+ xml_node result = append_child(proto.type());
+
+ if (result) impl::recursive_copy_skip(result, proto, result);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::prepend_copy(const xml_node& proto)
+ {
+ xml_node result = prepend_child(proto.type());
+
+ if (result) impl::recursive_copy_skip(result, proto, result);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::insert_copy_after(const xml_node& proto, const xml_node& node)
+ {
+ xml_node result = insert_child_after(proto.type(), node);
+
+ if (result) impl::recursive_copy_skip(result, proto, result);
+
+ return result;
+ }
+
+ PUGI__FN xml_node xml_node::insert_copy_before(const xml_node& proto, const xml_node& node)
+ {
+ xml_node result = insert_child_before(proto.type(), node);
+
+ if (result) impl::recursive_copy_skip(result, proto, result);
+
+ return result;
+ }
+
+ PUGI__FN bool xml_node::remove_attribute(const char_t* name_)
+ {
+ return remove_attribute(attribute(name_));
+ }
+
+ PUGI__FN bool xml_node::remove_attribute(const xml_attribute& a)
+ {
+ if (!_root || !a._attr) return false;
+
+ // check that attribute belongs to *this
+ xml_attribute_struct* attr = a._attr;
+
+ while (attr->prev_attribute_c->next_attribute) attr = attr->prev_attribute_c;
+
+ if (attr != _root->first_attribute) return false;
+
+ if (a._attr->next_attribute) a._attr->next_attribute->prev_attribute_c = a._attr->prev_attribute_c;
+ else if (_root->first_attribute) _root->first_attribute->prev_attribute_c = a._attr->prev_attribute_c;
+
+ if (a._attr->prev_attribute_c->next_attribute) a._attr->prev_attribute_c->next_attribute = a._attr->next_attribute;
+ else _root->first_attribute = a._attr->next_attribute;
+
+ impl::destroy_attribute(a._attr, impl::get_allocator(_root));
+
+ return true;
+ }
+
+ PUGI__FN bool xml_node::remove_child(const char_t* name_)
+ {
+ return remove_child(child(name_));
+ }
+
+ PUGI__FN bool xml_node::remove_child(const xml_node& n)
+ {
+ if (!_root || !n._root || n._root->parent != _root) return false;
+
+ if (n._root->next_sibling) n._root->next_sibling->prev_sibling_c = n._root->prev_sibling_c;
+ else if (_root->first_child) _root->first_child->prev_sibling_c = n._root->prev_sibling_c;
+
+ if (n._root->prev_sibling_c->next_sibling) n._root->prev_sibling_c->next_sibling = n._root->next_sibling;
+ else _root->first_child = n._root->next_sibling;
+
+ impl::destroy_node(n._root, impl::get_allocator(_root));
+
+ return true;
+ }
+
+ PUGI__FN xml_parse_result xml_node::append_buffer(const void* contents, size_t size, unsigned int options, xml_encoding encoding)
+ {
+ // append_buffer is only valid for elements/documents
+ if (!impl::allow_insert_child(type(), node_element)) return impl::make_parse_result(status_append_invalid_root);
+
+ // get document node
+ impl::xml_document_struct* doc = static_cast<impl::xml_document_struct*>(root()._root);
+ assert(doc);
+
+ // get extra buffer element (we'll store the document fragment buffer there so that we can deallocate it later)
+ impl::xml_memory_page* page = 0;
+ impl::xml_extra_buffer* extra = static_cast<impl::xml_extra_buffer*>(doc->allocate_memory(sizeof(impl::xml_extra_buffer), page));
+ (void)page;
+
+ if (!extra) return impl::make_parse_result(status_out_of_memory);
+
+ // save name; name of the root has to be NULL before parsing - otherwise closing node mismatches will not be detected at the top level
+ char_t* rootname = _root->name;
+ _root->name = 0;
+
+ // parse
+ char_t* buffer = 0;
+ xml_parse_result res = impl::load_buffer_impl(doc, _root, const_cast<void*>(contents), size, options, encoding, false, false, &buffer);
+
+ // restore name
+ _root->name = rootname;
+
+ // add extra buffer to the list
+ extra->buffer = buffer;
+ extra->next = doc->extra_buffers;
+ doc->extra_buffers = extra;
+
+ return res;
+ }
+
+ PUGI__FN xml_node xml_node::find_child_by_attribute(const char_t* name_, const char_t* attr_name, const char_t* attr_value) const
+ {
+ if (!_root) return xml_node();
+
+ for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+ if (i->name && impl::strequal(name_, i->name))
+ {
+ for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
+ if (a->name && impl::strequal(attr_name, a->name) && impl::strequal(attr_value, a->value ? a->value : PUGIXML_TEXT("")))
+ return xml_node(i);
+ }
+
+ return xml_node();
+ }
+
+ PUGI__FN xml_node xml_node::find_child_by_attribute(const char_t* attr_name, const char_t* attr_value) const
+ {
+ if (!_root) return xml_node();
+
+ for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+ for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
+ if (a->name && impl::strequal(attr_name, a->name) && impl::strequal(attr_value, a->value ? a->value : PUGIXML_TEXT("")))
+ return xml_node(i);
+
+ return xml_node();
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN string_t xml_node::path(char_t delimiter) const
+ {
+ xml_node cursor = *this; // Make a copy.
+
+ string_t result = cursor.name();
+
+ while (cursor.parent())
+ {
+ cursor = cursor.parent();
+
+ string_t temp = cursor.name();
+ temp += delimiter;
+ temp += result;
+ result.swap(temp);
+ }
+
+ return result;
+ }
+#endif
+
+ PUGI__FN xml_node xml_node::first_element_by_path(const char_t* path_, char_t delimiter) const
+ {
+ xml_node found = *this; // Current search context.
+
+ if (!_root || !path_ || !path_[0]) return found;
+
+ if (path_[0] == delimiter)
+ {
+ // Absolute path; e.g. '/foo/bar'
+ found = found.root();
+ ++path_;
+ }
+
+ const char_t* path_segment = path_;
+
+ while (*path_segment == delimiter) ++path_segment;
+
+ const char_t* path_segment_end = path_segment;
+
+ while (*path_segment_end && *path_segment_end != delimiter) ++path_segment_end;
+
+ if (path_segment == path_segment_end) return found;
+
+ const char_t* next_segment = path_segment_end;
+
+ while (*next_segment == delimiter) ++next_segment;
+
+ if (*path_segment == '.' && path_segment + 1 == path_segment_end)
+ return found.first_element_by_path(next_segment, delimiter);
+ else if (*path_segment == '.' && *(path_segment+1) == '.' && path_segment + 2 == path_segment_end)
+ return found.parent().first_element_by_path(next_segment, delimiter);
+ else
+ {
+ for (xml_node_struct* j = found._root->first_child; j; j = j->next_sibling)
+ {
+ if (j->name && impl::strequalrange(j->name, path_segment, static_cast<size_t>(path_segment_end - path_segment)))
+ {
+ xml_node subsearch = xml_node(j).first_element_by_path(next_segment, delimiter);
+
+ if (subsearch) return subsearch;
+ }
+ }
+
+ return xml_node();
+ }
+ }
+
+ PUGI__FN bool xml_node::traverse(xml_tree_walker& walker)
+ {
+ walker._depth = -1;
+
+ xml_node arg_begin = *this;
+ if (!walker.begin(arg_begin)) return false;
+
+ xml_node cur = first_child();
+
+ if (cur)
+ {
+ ++walker._depth;
+
+ do
+ {
+ xml_node arg_for_each = cur;
+ if (!walker.for_each(arg_for_each))
+ return false;
+
+ if (cur.first_child())
+ {
+ ++walker._depth;
+ cur = cur.first_child();
+ }
+ else if (cur.next_sibling())
+ cur = cur.next_sibling();
+ else
+ {
+ // Borland C++ workaround
+ while (!cur.next_sibling() && cur != *this && !cur.parent().empty())
+ {
+ --walker._depth;
+ cur = cur.parent();
+ }
+
+ if (cur != *this)
+ cur = cur.next_sibling();
+ }
+ }
+ while (cur && cur != *this);
+ }
+
+ assert(walker._depth == -1);
+
+ xml_node arg_end = *this;
+ return walker.end(arg_end);
+ }
+
+ PUGI__FN size_t xml_node::hash_value() const
+ {
+ return static_cast<size_t>(reinterpret_cast<uintptr_t>(_root) / sizeof(xml_node_struct));
+ }
+
+ PUGI__FN xml_node_struct* xml_node::internal_object() const
+ {
+ return _root;
+ }
+
+ PUGI__FN void xml_node::print(xml_writer& writer, const char_t* indent, unsigned int flags, xml_encoding encoding, unsigned int depth) const
+ {
+ if (!_root) return;
+
+ impl::xml_buffered_writer buffered_writer(writer, encoding);
+
+ impl::node_output(buffered_writer, *this, indent, flags, depth);
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN void xml_node::print(std::basic_ostream<char, std::char_traits<char> >& stream, const char_t* indent, unsigned int flags, xml_encoding encoding, unsigned int depth) const
+ {
+ xml_writer_stream writer(stream);
+
+ print(writer, indent, flags, encoding, depth);
+ }
+
+ PUGI__FN void xml_node::print(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream, const char_t* indent, unsigned int flags, unsigned int depth) const
+ {
+ xml_writer_stream writer(stream);
+
+ print(writer, indent, flags, encoding_wchar, depth);
+ }
+#endif
+
+ PUGI__FN ptrdiff_t xml_node::offset_debug() const
+ {
+ xml_node_struct* r = root()._root;
+
+ if (!r) return -1;
+
+ const char_t* buffer = static_cast<impl::xml_document_struct*>(r)->buffer;
+
+ if (!buffer) return -1;
+
+ switch (type())
+ {
+ case node_document:
+ return 0;
+
+ case node_element:
+ case node_declaration:
+ case node_pi:
+ return (_root->header & impl::xml_memory_page_name_allocated_mask) ? -1 : _root->name - buffer;
+
+ case node_pcdata:
+ case node_cdata:
+ case node_comment:
+ case node_doctype:
+ return (_root->header & impl::xml_memory_page_value_allocated_mask) ? -1 : _root->value - buffer;
+
+ default:
+ return -1;
+ }
+ }
+
+#ifdef __BORLANDC__
+ PUGI__FN bool operator&&(const xml_node& lhs, bool rhs)
+ {
+ return (bool)lhs && rhs;
+ }
+
+ PUGI__FN bool operator||(const xml_node& lhs, bool rhs)
+ {
+ return (bool)lhs || rhs;
+ }
+#endif
+
+ PUGI__FN xml_text::xml_text(xml_node_struct* root): _root(root)
+ {
+ }
+
+ PUGI__FN xml_node_struct* xml_text::_data() const
+ {
+ if (!_root || impl::is_text_node(_root)) return _root;
+
+ for (xml_node_struct* node = _root->first_child; node; node = node->next_sibling)
+ if (impl::is_text_node(node))
+ return node;
+
+ return 0;
+ }
+
+ PUGI__FN xml_node_struct* xml_text::_data_new()
+ {
+ xml_node_struct* d = _data();
+ if (d) return d;
+
+ return xml_node(_root).append_child(node_pcdata).internal_object();
+ }
+
+ PUGI__FN xml_text::xml_text(): _root(0)
+ {
+ }
+
+ PUGI__FN static void unspecified_bool_xml_text(xml_text***)
+ {
+ }
+
+ PUGI__FN xml_text::operator xml_text::unspecified_bool_type() const
+ {
+ return _data() ? unspecified_bool_xml_text : 0;
+ }
+
+ PUGI__FN bool xml_text::operator!() const
+ {
+ return !_data();
+ }
+
+ PUGI__FN bool xml_text::empty() const
+ {
+ return _data() == 0;
+ }
+
+ PUGI__FN const char_t* xml_text::get() const
+ {
+ xml_node_struct* d = _data();
+
+ return (d && d->value) ? d->value : PUGIXML_TEXT("");
+ }
+
+ PUGI__FN const char_t* xml_text::as_string(const char_t* def) const
+ {
+ xml_node_struct* d = _data();
+
+ return (d && d->value) ? d->value : def;
+ }
+
+ PUGI__FN int xml_text::as_int(int def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_int(d ? d->value : 0, def);
+ }
+
+ PUGI__FN unsigned int xml_text::as_uint(unsigned int def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_uint(d ? d->value : 0, def);
+ }
+
+ PUGI__FN double xml_text::as_double(double def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_double(d ? d->value : 0, def);
+ }
+
+ PUGI__FN float xml_text::as_float(float def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_float(d ? d->value : 0, def);
+ }
+
+ PUGI__FN bool xml_text::as_bool(bool def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_bool(d ? d->value : 0, def);
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN long long xml_text::as_llong(long long def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_llong(d ? d->value : 0, def);
+ }
+
+ PUGI__FN unsigned long long xml_text::as_ullong(unsigned long long def) const
+ {
+ xml_node_struct* d = _data();
+
+ return impl::get_value_ullong(d ? d->value : 0, def);
+ }
+#endif
+
+ PUGI__FN bool xml_text::set(const char_t* rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::strcpy_insitu(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+
+ PUGI__FN bool xml_text::set(int rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::set_value_convert(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+
+ PUGI__FN bool xml_text::set(unsigned int rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::set_value_convert(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+
+ PUGI__FN bool xml_text::set(double rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::set_value_convert(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+
+ PUGI__FN bool xml_text::set(bool rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::set_value_convert(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN bool xml_text::set(long long rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::set_value_convert(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+
+ PUGI__FN bool xml_text::set(unsigned long long rhs)
+ {
+ xml_node_struct* dn = _data_new();
+
+ return dn ? impl::set_value_convert(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs) : false;
+ }
+#endif
+
+ PUGI__FN xml_text& xml_text::operator=(const char_t* rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_text& xml_text::operator=(int rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_text& xml_text::operator=(unsigned int rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_text& xml_text::operator=(double rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_text& xml_text::operator=(bool rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+
+#ifdef PUGIXML_HAS_LONG_LONG
+ PUGI__FN xml_text& xml_text::operator=(long long rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+
+ PUGI__FN xml_text& xml_text::operator=(unsigned long long rhs)
+ {
+ set(rhs);
+ return *this;
+ }
+#endif
+
+ PUGI__FN xml_node xml_text::data() const
+ {
+ return xml_node(_data());
+ }
+
+#ifdef __BORLANDC__
+ PUGI__FN bool operator&&(const xml_text& lhs, bool rhs)
+ {
+ return (bool)lhs && rhs;
+ }
+
+ PUGI__FN bool operator||(const xml_text& lhs, bool rhs)
+ {
+ return (bool)lhs || rhs;
+ }
+#endif
+
+ PUGI__FN xml_node_iterator::xml_node_iterator()
+ {
+ }
+
+ PUGI__FN xml_node_iterator::xml_node_iterator(const xml_node& node): _wrap(node), _parent(node.parent())
+ {
+ }
+
+ PUGI__FN xml_node_iterator::xml_node_iterator(xml_node_struct* ref, xml_node_struct* parent): _wrap(ref), _parent(parent)
+ {
+ }
+
+ PUGI__FN bool xml_node_iterator::operator==(const xml_node_iterator& rhs) const
+ {
+ return _wrap._root == rhs._wrap._root && _parent._root == rhs._parent._root;
+ }
+
+ PUGI__FN bool xml_node_iterator::operator!=(const xml_node_iterator& rhs) const
+ {
+ return _wrap._root != rhs._wrap._root || _parent._root != rhs._parent._root;
+ }
+
+ PUGI__FN xml_node& xml_node_iterator::operator*() const
+ {
+ assert(_wrap._root);
+ return _wrap;
+ }
+
+ PUGI__FN xml_node* xml_node_iterator::operator->() const
+ {
+ assert(_wrap._root);
+ return const_cast<xml_node*>(&_wrap); // BCC32 workaround
+ }
+
+ PUGI__FN const xml_node_iterator& xml_node_iterator::operator++()
+ {
+ assert(_wrap._root);
+ _wrap._root = _wrap._root->next_sibling;
+ return *this;
+ }
+
+ PUGI__FN xml_node_iterator xml_node_iterator::operator++(int)
+ {
+ xml_node_iterator temp = *this;
+ ++*this;
+ return temp;
+ }
+
+ PUGI__FN const xml_node_iterator& xml_node_iterator::operator--()
+ {
+ _wrap = _wrap._root ? _wrap.previous_sibling() : _parent.last_child();
+ return *this;
+ }
+
+ PUGI__FN xml_node_iterator xml_node_iterator::operator--(int)
+ {
+ xml_node_iterator temp = *this;
+ --*this;
+ return temp;
+ }
+
+ PUGI__FN xml_attribute_iterator::xml_attribute_iterator()
+ {
+ }
+
+ PUGI__FN xml_attribute_iterator::xml_attribute_iterator(const xml_attribute& attr, const xml_node& parent): _wrap(attr), _parent(parent)
+ {
+ }
+
+ PUGI__FN xml_attribute_iterator::xml_attribute_iterator(xml_attribute_struct* ref, xml_node_struct* parent): _wrap(ref), _parent(parent)
+ {
+ }
+
+ PUGI__FN bool xml_attribute_iterator::operator==(const xml_attribute_iterator& rhs) const
+ {
+ return _wrap._attr == rhs._wrap._attr && _parent._root == rhs._parent._root;
+ }
+
+ PUGI__FN bool xml_attribute_iterator::operator!=(const xml_attribute_iterator& rhs) const
+ {
+ return _wrap._attr != rhs._wrap._attr || _parent._root != rhs._parent._root;
+ }
+
+ PUGI__FN xml_attribute& xml_attribute_iterator::operator*() const
+ {
+ assert(_wrap._attr);
+ return _wrap;
+ }
+
+ PUGI__FN xml_attribute* xml_attribute_iterator::operator->() const
+ {
+ assert(_wrap._attr);
+ return const_cast<xml_attribute*>(&_wrap); // BCC32 workaround
+ }
+
+ PUGI__FN const xml_attribute_iterator& xml_attribute_iterator::operator++()
+ {
+ assert(_wrap._attr);
+ _wrap._attr = _wrap._attr->next_attribute;
+ return *this;
+ }
+
+ PUGI__FN xml_attribute_iterator xml_attribute_iterator::operator++(int)
+ {
+ xml_attribute_iterator temp = *this;
+ ++*this;
+ return temp;
+ }
+
+ PUGI__FN const xml_attribute_iterator& xml_attribute_iterator::operator--()
+ {
+ _wrap = _wrap._attr ? _wrap.previous_attribute() : _parent.last_attribute();
+ return *this;
+ }
+
+ PUGI__FN xml_attribute_iterator xml_attribute_iterator::operator--(int)
+ {
+ xml_attribute_iterator temp = *this;
+ --*this;
+ return temp;
+ }
+
+ PUGI__FN xml_named_node_iterator::xml_named_node_iterator(): _name(0)
+ {
+ }
+
+ PUGI__FN xml_named_node_iterator::xml_named_node_iterator(const xml_node& node, const char_t* name): _wrap(node), _parent(node.parent()), _name(name)
+ {
+ }
+
+ PUGI__FN xml_named_node_iterator::xml_named_node_iterator(xml_node_struct* ref, xml_node_struct* parent, const char_t* name): _wrap(ref), _parent(parent), _name(name)
+ {
+ }
+
+ PUGI__FN bool xml_named_node_iterator::operator==(const xml_named_node_iterator& rhs) const
+ {
+ return _wrap._root == rhs._wrap._root && _parent._root == rhs._parent._root;
+ }
+
+ PUGI__FN bool xml_named_node_iterator::operator!=(const xml_named_node_iterator& rhs) const
+ {
+ return _wrap._root != rhs._wrap._root || _parent._root != rhs._parent._root;
+ }
+
+ PUGI__FN xml_node& xml_named_node_iterator::operator*() const
+ {
+ assert(_wrap._root);
+ return _wrap;
+ }
+
+ PUGI__FN xml_node* xml_named_node_iterator::operator->() const
+ {
+ assert(_wrap._root);
+ return const_cast<xml_node*>(&_wrap); // BCC32 workaround
+ }
+
+ PUGI__FN const xml_named_node_iterator& xml_named_node_iterator::operator++()
+ {
+ assert(_wrap._root);
+ _wrap = _wrap.next_sibling(_name);
+ return *this;
+ }
+
+ PUGI__FN xml_named_node_iterator xml_named_node_iterator::operator++(int)
+ {
+ xml_named_node_iterator temp = *this;
+ ++*this;
+ return temp;
+ }
+
+ PUGI__FN const xml_named_node_iterator& xml_named_node_iterator::operator--()
+ {
+ if (_wrap._root)
+ _wrap = _wrap.previous_sibling(_name);
+ else
+ {
+ _wrap = _parent.last_child();
+
+ if (!impl::strequal(_wrap.name(), _name))
+ _wrap = _wrap.previous_sibling(_name);
+ }
+
+ return *this;
+ }
+
+ PUGI__FN xml_named_node_iterator xml_named_node_iterator::operator--(int)
+ {
+ xml_named_node_iterator temp = *this;
+ --*this;
+ return temp;
+ }
+
+ PUGI__FN xml_parse_result::xml_parse_result(): status(status_internal_error), offset(0), encoding(encoding_auto)
+ {
+ }
+
+ PUGI__FN xml_parse_result::operator bool() const
+ {
+ return status == status_ok;
+ }
+
+ PUGI__FN const char* xml_parse_result::description() const
+ {
+ switch (status)
+ {
+ case status_ok: return "No error";
+
+ case status_file_not_found: return "File was not found";
+ case status_io_error: return "Error reading from file/stream";
+ case status_out_of_memory: return "Could not allocate memory";
+ case status_internal_error: return "Internal error occurred";
+
+ case status_unrecognized_tag: return "Could not determine tag type";
+
+ case status_bad_pi: return "Error parsing document declaration/processing instruction";
+ case status_bad_comment: return "Error parsing comment";
+ case status_bad_cdata: return "Error parsing CDATA section";
+ case status_bad_doctype: return "Error parsing document type declaration";
+ case status_bad_pcdata: return "Error parsing PCDATA section";
+ case status_bad_start_element: return "Error parsing start element tag";
+ case status_bad_attribute: return "Error parsing element attribute";
+ case status_bad_end_element: return "Error parsing end element tag";
+ case status_end_element_mismatch: return "Start-end tags mismatch";
+
+ case status_append_invalid_root: return "Unable to append nodes: root is not an element or document";
+
+ case status_no_document_element: return "No document element found";
+
+ default: return "Unknown error";
+ }
+ }
+
+ PUGI__FN xml_document::xml_document(): _buffer(0)
+ {
+ create();
+ }
+
+ PUGI__FN xml_document::~xml_document()
+ {
+ destroy();
+ }
+
+ PUGI__FN void xml_document::reset()
+ {
+ destroy();
+ create();
+ }
+
+ PUGI__FN void xml_document::reset(const xml_document& proto)
+ {
+ reset();
+
+ for (xml_node cur = proto.first_child(); cur; cur = cur.next_sibling())
+ append_copy(cur);
+ }
+
+ PUGI__FN void xml_document::create()
+ {
+ assert(!_root);
+
+ // initialize sentinel page
+ PUGI__STATIC_ASSERT(sizeof(impl::xml_memory_page) + sizeof(impl::xml_document_struct) + impl::xml_memory_page_alignment <= sizeof(_memory));
+
+ // align upwards to page boundary
+ void* page_memory = reinterpret_cast<void*>((reinterpret_cast<uintptr_t>(_memory) + (impl::xml_memory_page_alignment - 1)) & ~(impl::xml_memory_page_alignment - 1));
+
+ // prepare page structure
+ impl::xml_memory_page* page = impl::xml_memory_page::construct(page_memory);
+ assert(page);
+
+ page->busy_size = impl::xml_memory_page_size;
+
+ // allocate new root
+ _root = new (page->data) impl::xml_document_struct(page);
+ _root->prev_sibling_c = _root;
+
+ // setup sentinel page
+ page->allocator = static_cast<impl::xml_document_struct*>(_root);
+ }
+
+ PUGI__FN void xml_document::destroy()
+ {
+ assert(_root);
+
+ // destroy static storage
+ if (_buffer)
+ {
+ impl::xml_memory::deallocate(_buffer);
+ _buffer = 0;
+ }
+
+ // destroy extra buffers (note: no need to destroy linked list nodes, they're allocated using document allocator)
+ for (impl::xml_extra_buffer* extra = static_cast<impl::xml_document_struct*>(_root)->extra_buffers; extra; extra = extra->next)
+ {
+ if (extra->buffer) impl::xml_memory::deallocate(extra->buffer);
+ }
+
+ // destroy dynamic storage, leave sentinel page (it's in static memory)
+ impl::xml_memory_page* root_page = reinterpret_cast<impl::xml_memory_page*>(_root->header & impl::xml_memory_page_pointer_mask);
+ assert(root_page && !root_page->prev && !root_page->memory);
+
+ for (impl::xml_memory_page* page = root_page->next; page; )
+ {
+ impl::xml_memory_page* next = page->next;
+
+ impl::xml_allocator::deallocate_page(page);
+
+ page = next;
+ }
+
+ _root = 0;
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN xml_parse_result xml_document::load(std::basic_istream<char, std::char_traits<char> >& stream, unsigned int options, xml_encoding encoding)
+ {
+ reset();
+
+ return impl::load_stream_impl(*this, stream, options, encoding);
+ }
+
+ PUGI__FN xml_parse_result xml_document::load(std::basic_istream<wchar_t, std::char_traits<wchar_t> >& stream, unsigned int options)
+ {
+ reset();
+
+ return impl::load_stream_impl(*this, stream, options, encoding_wchar);
+ }
+#endif
+
+ PUGI__FN xml_parse_result xml_document::load(const char_t* contents, unsigned int options)
+ {
+ // Force native encoding (skip autodetection)
+ #ifdef PUGIXML_WCHAR_MODE
+ xml_encoding encoding = encoding_wchar;
+ #else
+ xml_encoding encoding = encoding_utf8;
+ #endif
+
+ return load_buffer(contents, impl::strlength(contents) * sizeof(char_t), options, encoding);
+ }
+
+ PUGI__FN xml_parse_result xml_document::load_file(const char* path_, unsigned int options, xml_encoding encoding)
+ {
+ reset();
+
+ FILE* file = fopen(path_, "rb");
+
+ return impl::load_file_impl(*this, file, options, encoding);
+ }
+
+ PUGI__FN xml_parse_result xml_document::load_file(const wchar_t* path_, unsigned int options, xml_encoding encoding)
+ {
+ reset();
+
+ FILE* file = impl::open_file_wide(path_, L"rb");
+
+ return impl::load_file_impl(*this, file, options, encoding);
+ }
+
+ PUGI__FN xml_parse_result xml_document::load_buffer(const void* contents, size_t size, unsigned int options, xml_encoding encoding)
+ {
+ reset();
+
+ return impl::load_buffer_impl(static_cast<impl::xml_document_struct*>(_root), _root, const_cast<void*>(contents), size, options, encoding, false, false, &_buffer);
+ }
+
+ PUGI__FN xml_parse_result xml_document::load_buffer_inplace(void* contents, size_t size, unsigned int options, xml_encoding encoding)
+ {
+ reset();
+
+ return impl::load_buffer_impl(static_cast<impl::xml_document_struct*>(_root), _root, contents, size, options, encoding, true, false, &_buffer);
+ }
+
+ PUGI__FN xml_parse_result xml_document::load_buffer_inplace_own(void* contents, size_t size, unsigned int options, xml_encoding encoding)
+ {
+ reset();
+
+ return impl::load_buffer_impl(static_cast<impl::xml_document_struct*>(_root), _root, contents, size, options, encoding, true, true, &_buffer);
+ }
+
+ PUGI__FN void xml_document::save(xml_writer& writer, const char_t* indent, unsigned int flags, xml_encoding encoding) const
+ {
+ impl::xml_buffered_writer buffered_writer(writer, encoding);
+
+ if ((flags & format_write_bom) && encoding != encoding_latin1)
+ {
+ // BOM always represents the codepoint U+FEFF, so just write it in native encoding
+ #ifdef PUGIXML_WCHAR_MODE
+ unsigned int bom = 0xfeff;
+ buffered_writer.write(static_cast<wchar_t>(bom));
+ #else
+ buffered_writer.write('\xef', '\xbb', '\xbf');
+ #endif
+ }
+
+ if (!(flags & format_no_declaration) && !impl::has_declaration(*this))
+ {
+ buffered_writer.write(PUGIXML_TEXT("<?xml version=\"1.0\""));
+ if (encoding == encoding_latin1) buffered_writer.write(PUGIXML_TEXT(" encoding=\"ISO-8859-1\""));
+ buffered_writer.write('?', '>');
+ if (!(flags & format_raw)) buffered_writer.write('\n');
+ }
+
+ impl::node_output(buffered_writer, *this, indent, flags, 0);
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN void xml_document::save(std::basic_ostream<char, std::char_traits<char> >& stream, const char_t* indent, unsigned int flags, xml_encoding encoding) const
+ {
+ xml_writer_stream writer(stream);
+
+ save(writer, indent, flags, encoding);
+ }
+
+ PUGI__FN void xml_document::save(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream, const char_t* indent, unsigned int flags) const
+ {
+ xml_writer_stream writer(stream);
+
+ save(writer, indent, flags, encoding_wchar);
+ }
+#endif
+
+ PUGI__FN bool xml_document::save_file(const char* path_, const char_t* indent, unsigned int flags, xml_encoding encoding) const
+ {
+ FILE* file = fopen(path_, (flags & format_save_file_text) ? "w" : "wb");
+ return impl::save_file_impl(*this, file, indent, flags, encoding);
+ }
+
+ PUGI__FN bool xml_document::save_file(const wchar_t* path_, const char_t* indent, unsigned int flags, xml_encoding encoding) const
+ {
+ FILE* file = impl::open_file_wide(path_, (flags & format_save_file_text) ? L"w" : L"wb");
+ return impl::save_file_impl(*this, file, indent, flags, encoding);
+ }
+
+ PUGI__FN xml_node xml_document::document_element() const
+ {
+ assert(_root);
+
+ for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+ if ((i->header & impl::xml_memory_page_type_mask) + 1 == node_element)
+ return xml_node(i);
+
+ return xml_node();
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN std::string PUGIXML_FUNCTION as_utf8(const wchar_t* str)
+ {
+ assert(str);
+
+ return impl::as_utf8_impl(str, impl::strlength_wide(str));
+ }
+
+ PUGI__FN std::string PUGIXML_FUNCTION as_utf8(const std::basic_string<wchar_t>& str)
+ {
+ return impl::as_utf8_impl(str.c_str(), str.size());
+ }
+
+ PUGI__FN std::basic_string<wchar_t> PUGIXML_FUNCTION as_wide(const char* str)
+ {
+ assert(str);
+
+ return impl::as_wide_impl(str, strlen(str));
+ }
+
+ PUGI__FN std::basic_string<wchar_t> PUGIXML_FUNCTION as_wide(const std::string& str)
+ {
+ return impl::as_wide_impl(str.c_str(), str.size());
+ }
+#endif
+
+ PUGI__FN void PUGIXML_FUNCTION set_memory_management_functions(allocation_function allocate, deallocation_function deallocate)
+ {
+ impl::xml_memory::allocate = allocate;
+ impl::xml_memory::deallocate = deallocate;
+ }
+
+ PUGI__FN allocation_function PUGIXML_FUNCTION get_memory_allocation_function()
+ {
+ return impl::xml_memory::allocate;
+ }
+
+ PUGI__FN deallocation_function PUGIXML_FUNCTION get_memory_deallocation_function()
+ {
+ return impl::xml_memory::deallocate;
+ }
+}
+
+#if !defined(PUGIXML_NO_STL) && (defined(_MSC_VER) || defined(__ICC))
+namespace std
+{
+ // Workarounds for (non-standard) iterator category detection for older versions (MSVC7/IC8 and earlier)
+ PUGI__FN std::bidirectional_iterator_tag _Iter_cat(const pugi::xml_node_iterator&)
+ {
+ return std::bidirectional_iterator_tag();
+ }
+
+ PUGI__FN std::bidirectional_iterator_tag _Iter_cat(const pugi::xml_attribute_iterator&)
+ {
+ return std::bidirectional_iterator_tag();
+ }
+
+ PUGI__FN std::bidirectional_iterator_tag _Iter_cat(const pugi::xml_named_node_iterator&)
+ {
+ return std::bidirectional_iterator_tag();
+ }
+}
+#endif
+
+#if !defined(PUGIXML_NO_STL) && defined(__SUNPRO_CC)
+namespace std
+{
+ // Workarounds for (non-standard) iterator category detection
+ PUGI__FN std::bidirectional_iterator_tag __iterator_category(const pugi::xml_node_iterator&)
+ {
+ return std::bidirectional_iterator_tag();
+ }
+
+ PUGI__FN std::bidirectional_iterator_tag __iterator_category(const pugi::xml_attribute_iterator&)
+ {
+ return std::bidirectional_iterator_tag();
+ }
+
+ PUGI__FN std::bidirectional_iterator_tag __iterator_category(const pugi::xml_named_node_iterator&)
+ {
+ return std::bidirectional_iterator_tag();
+ }
+}
+#endif
+
+#ifndef PUGIXML_NO_XPATH
+
+// STL replacements
+PUGI__NS_BEGIN
+ struct equal_to
+ {
+ template <typename T> bool operator()(const T& lhs, const T& rhs) const
+ {
+ return lhs == rhs;
+ }
+ };
+
+ struct not_equal_to
+ {
+ template <typename T> bool operator()(const T& lhs, const T& rhs) const
+ {
+ return lhs != rhs;
+ }
+ };
+
+ struct less
+ {
+ template <typename T> bool operator()(const T& lhs, const T& rhs) const
+ {
+ return lhs < rhs;
+ }
+ };
+
+ struct less_equal
+ {
+ template <typename T> bool operator()(const T& lhs, const T& rhs) const
+ {
+ return lhs <= rhs;
+ }
+ };
+
+ template <typename T> void swap(T& lhs, T& rhs)
+ {
+ T temp = lhs;
+ lhs = rhs;
+ rhs = temp;
+ }
+
+ template <typename I, typename Pred> I min_element(I begin, I end, const Pred& pred)
+ {
+ I result = begin;
+
+ for (I it = begin + 1; it != end; ++it)
+ if (pred(*it, *result))
+ result = it;
+
+ return result;
+ }
+
+ template <typename I> void reverse(I begin, I end)
+ {
+ while (end - begin > 1) swap(*begin++, *--end);
+ }
+
+ template <typename I> I unique(I begin, I end)
+ {
+ // fast skip head
+ while (end - begin > 1 && *begin != *(begin + 1)) begin++;
+
+ if (begin == end) return begin;
+
+ // last written element
+ I write = begin++;
+
+ // merge unique elements
+ while (begin != end)
+ {
+ if (*begin != *write)
+ *++write = *begin++;
+ else
+ begin++;
+ }
+
+ // past-the-end (write points to live element)
+ return write + 1;
+ }
+
+ template <typename I> void copy_backwards(I begin, I end, I target)
+ {
+ while (begin != end) *--target = *--end;
+ }
+
+ template <typename I, typename Pred, typename T> void insertion_sort(I begin, I end, const Pred& pred, T*)
+ {
+ assert(begin != end);
+
+ for (I it = begin + 1; it != end; ++it)
+ {
+ T val = *it;
+
+ if (pred(val, *begin))
+ {
+ // move to front
+ copy_backwards(begin, it, it + 1);
+ *begin = val;
+ }
+ else
+ {
+ I hole = it;
+
+ // move hole backwards
+ while (pred(val, *(hole - 1)))
+ {
+ *hole = *(hole - 1);
+ hole--;
+ }
+
+ // fill hole with element
+ *hole = val;
+ }
+ }
+ }
+
+ // std variant for elements with ==
+ template <typename I, typename Pred> void partition(I begin, I middle, I end, const Pred& pred, I* out_eqbeg, I* out_eqend)
+ {
+ I eqbeg = middle, eqend = middle + 1;
+
+ // expand equal range
+ while (eqbeg != begin && *(eqbeg - 1) == *eqbeg) --eqbeg;
+ while (eqend != end && *eqend == *eqbeg) ++eqend;
+
+ // process outer elements
+ I ltend = eqbeg, gtbeg = eqend;
+
+ for (;;)
+ {
+ // find the element from the right side that belongs to the left one
+ for (; gtbeg != end; ++gtbeg)
+ if (!pred(*eqbeg, *gtbeg))
+ {
+ if (*gtbeg == *eqbeg) swap(*gtbeg, *eqend++);
+ else break;
+ }
+
+ // find the element from the left side that belongs to the right one
+ for (; ltend != begin; --ltend)
+ if (!pred(*(ltend - 1), *eqbeg))
+ {
+ if (*eqbeg == *(ltend - 1)) swap(*(ltend - 1), *--eqbeg);
+ else break;
+ }
+
+ // scanned all elements
+ if (gtbeg == end && ltend == begin)
+ {
+ *out_eqbeg = eqbeg;
+ *out_eqend = eqend;
+ return;
+ }
+
+ // make room for elements by moving equal area
+ if (gtbeg == end)
+ {
+ if (--ltend != --eqbeg) swap(*ltend, *eqbeg);
+ swap(*eqbeg, *--eqend);
+ }
+ else if (ltend == begin)
+ {
+ if (eqend != gtbeg) swap(*eqbeg, *eqend);
+ ++eqend;
+ swap(*gtbeg++, *eqbeg++);
+ }
+ else swap(*gtbeg++, *--ltend);
+ }
+ }
+
+ template <typename I, typename Pred> void median3(I first, I middle, I last, const Pred& pred)
+ {
+ if (pred(*middle, *first)) swap(*middle, *first);
+ if (pred(*last, *middle)) swap(*last, *middle);
+ if (pred(*middle, *first)) swap(*middle, *first);
+ }
+
+ template <typename I, typename Pred> void median(I first, I middle, I last, const Pred& pred)
+ {
+ if (last - first <= 40)
+ {
+ // median of three for small chunks
+ median3(first, middle, last, pred);
+ }
+ else
+ {
+ // median of nine
+ size_t step = (last - first + 1) / 8;
+
+ median3(first, first + step, first + 2 * step, pred);
+ median3(middle - step, middle, middle + step, pred);
+ median3(last - 2 * step, last - step, last, pred);
+ median3(first + step, middle, last - step, pred);
+ }
+ }
+
+ template <typename I, typename Pred> void sort(I begin, I end, const Pred& pred)
+ {
+ // sort large chunks
+ while (end - begin > 32)
+ {
+ // find median element
+ I middle = begin + (end - begin) / 2;
+ median(begin, middle, end - 1, pred);
+
+ // partition in three chunks (< = >)
+ I eqbeg, eqend;
+ partition(begin, middle, end, pred, &eqbeg, &eqend);
+
+ // loop on larger half
+ if (eqbeg - begin > end - eqend)
+ {
+ sort(eqend, end, pred);
+ end = eqbeg;
+ }
+ else
+ {
+ sort(begin, eqbeg, pred);
+ begin = eqend;
+ }
+ }
+
+ // insertion sort small chunk
+ if (begin != end) insertion_sort(begin, end, pred, &*begin);
+ }
+PUGI__NS_END
+
+// Allocator used for AST and evaluation stacks
+PUGI__NS_BEGIN
+ struct xpath_memory_block
+ {
+ xpath_memory_block* next;
+
+ char data[
+ #ifdef PUGIXML_MEMORY_XPATH_PAGE_SIZE
+ PUGIXML_MEMORY_XPATH_PAGE_SIZE
+ #else
+ 4096
+ #endif
+ ];
+ };
+
+ class xpath_allocator
+ {
+ xpath_memory_block* _root;
+ size_t _root_size;
+
+ public:
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ jmp_buf* error_handler;
+ #endif
+
+ xpath_allocator(xpath_memory_block* root, size_t root_size = 0): _root(root), _root_size(root_size)
+ {
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ error_handler = 0;
+ #endif
+ }
+
+ void* allocate_nothrow(size_t size)
+ {
+ const size_t block_capacity = sizeof(_root->data);
+
+ // align size so that we're able to store pointers in subsequent blocks
+ size = (size + sizeof(void*) - 1) & ~(sizeof(void*) - 1);
+
+ if (_root_size + size <= block_capacity)
+ {
+ void* buf = _root->data + _root_size;
+ _root_size += size;
+ return buf;
+ }
+ else
+ {
+ size_t block_data_size = (size > block_capacity) ? size : block_capacity;
+ size_t block_size = block_data_size + offsetof(xpath_memory_block, data);
+
+ xpath_memory_block* block = static_cast<xpath_memory_block*>(xml_memory::allocate(block_size));
+ if (!block) return 0;
+
+ block->next = _root;
+
+ _root = block;
+ _root_size = size;
+
+ return block->data;
+ }
+ }
+
+ void* allocate(size_t size)
+ {
+ void* result = allocate_nothrow(size);
+
+ if (!result)
+ {
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ assert(error_handler);
+ longjmp(*error_handler, 1);
+ #else
+ throw std::bad_alloc();
+ #endif
+ }
+
+ return result;
+ }
+
+ void* reallocate(void* ptr, size_t old_size, size_t new_size)
+ {
+ // align size so that we're able to store pointers in subsequent blocks
+ old_size = (old_size + sizeof(void*) - 1) & ~(sizeof(void*) - 1);
+ new_size = (new_size + sizeof(void*) - 1) & ~(sizeof(void*) - 1);
+
+ // we can only reallocate the last object
+ assert(ptr == 0 || static_cast<char*>(ptr) + old_size == _root->data + _root_size);
+
+ // adjust root size so that we have not allocated the object at all
+ bool only_object = (_root_size == old_size);
+
+ if (ptr) _root_size -= old_size;
+
+ // allocate a new version (this will obviously reuse the memory if possible)
+ void* result = allocate(new_size);
+ assert(result);
+
+ // we have a new block
+ if (result != ptr && ptr)
+ {
+ // copy old data
+ assert(new_size >= old_size);
+ memcpy(result, ptr, old_size);
+
+ // free the previous page if it had no other objects
+ if (only_object)
+ {
+ assert(_root->data == result);
+ assert(_root->next);
+
+ xpath_memory_block* next = _root->next->next;
+
+ if (next)
+ {
+ // deallocate the whole page, unless it was the first one
+ xml_memory::deallocate(_root->next);
+ _root->next = next;
+ }
+ }
+ }
+
+ return result;
+ }
+
+ void revert(const xpath_allocator& state)
+ {
+ // free all new pages
+ xpath_memory_block* cur = _root;
+
+ while (cur != state._root)
+ {
+ xpath_memory_block* next = cur->next;
+
+ xml_memory::deallocate(cur);
+
+ cur = next;
+ }
+
+ // restore state
+ _root = state._root;
+ _root_size = state._root_size;
+ }
+
+ void release()
+ {
+ xpath_memory_block* cur = _root;
+ assert(cur);
+
+ while (cur->next)
+ {
+ xpath_memory_block* next = cur->next;
+
+ xml_memory::deallocate(cur);
+
+ cur = next;
+ }
+ }
+ };
+
+ struct xpath_allocator_capture
+ {
+ xpath_allocator_capture(xpath_allocator* alloc): _target(alloc), _state(*alloc)
+ {
+ }
+
+ ~xpath_allocator_capture()
+ {
+ _target->revert(_state);
+ }
+
+ xpath_allocator* _target;
+ xpath_allocator _state;
+ };
+
+ struct xpath_stack
+ {
+ xpath_allocator* result;
+ xpath_allocator* temp;
+ };
+
+ struct xpath_stack_data
+ {
+ xpath_memory_block blocks[2];
+ xpath_allocator result;
+ xpath_allocator temp;
+ xpath_stack stack;
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ jmp_buf error_handler;
+ #endif
+
+ xpath_stack_data(): result(blocks + 0), temp(blocks + 1)
+ {
+ blocks[0].next = blocks[1].next = 0;
+
+ stack.result = &result;
+ stack.temp = &temp;
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ result.error_handler = temp.error_handler = &error_handler;
+ #endif
+ }
+
+ ~xpath_stack_data()
+ {
+ result.release();
+ temp.release();
+ }
+ };
+PUGI__NS_END
+
+// String class
+PUGI__NS_BEGIN
+ class xpath_string
+ {
+ const char_t* _buffer;
+ bool _uses_heap;
+
+ static char_t* duplicate_string(const char_t* string, size_t length, xpath_allocator* alloc)
+ {
+ char_t* result = static_cast<char_t*>(alloc->allocate((length + 1) * sizeof(char_t)));
+ assert(result);
+
+ memcpy(result, string, length * sizeof(char_t));
+ result[length] = 0;
+
+ return result;
+ }
+
+ static char_t* duplicate_string(const char_t* string, xpath_allocator* alloc)
+ {
+ return duplicate_string(string, strlength(string), alloc);
+ }
+
+ public:
+ xpath_string(): _buffer(PUGIXML_TEXT("")), _uses_heap(false)
+ {
+ }
+
+ explicit xpath_string(const char_t* str, xpath_allocator* alloc)
+ {
+ bool empty_ = (*str == 0);
+
+ _buffer = empty_ ? PUGIXML_TEXT("") : duplicate_string(str, alloc);
+ _uses_heap = !empty_;
+ }
+
+ explicit xpath_string(const char_t* str, bool use_heap): _buffer(str), _uses_heap(use_heap)
+ {
+ }
+
+ xpath_string(const char_t* begin, const char_t* end, xpath_allocator* alloc)
+ {
+ assert(begin <= end);
+
+ bool empty_ = (begin == end);
+
+ _buffer = empty_ ? PUGIXML_TEXT("") : duplicate_string(begin, static_cast<size_t>(end - begin), alloc);
+ _uses_heap = !empty_;
+ }
+
+ void append(const xpath_string& o, xpath_allocator* alloc)
+ {
+ // skip empty sources
+ if (!*o._buffer) return;
+
+ // fast append for constant empty target and constant source
+ if (!*_buffer && !_uses_heap && !o._uses_heap)
+ {
+ _buffer = o._buffer;
+ }
+ else
+ {
+ // need to make heap copy
+ size_t target_length = strlength(_buffer);
+ size_t source_length = strlength(o._buffer);
+ size_t result_length = target_length + source_length;
+
+ // allocate new buffer
+ char_t* result = static_cast<char_t*>(alloc->reallocate(_uses_heap ? const_cast<char_t*>(_buffer) : 0, (target_length + 1) * sizeof(char_t), (result_length + 1) * sizeof(char_t)));
+ assert(result);
+
+ // append first string to the new buffer in case there was no reallocation
+ if (!_uses_heap) memcpy(result, _buffer, target_length * sizeof(char_t));
+
+ // append second string to the new buffer
+ memcpy(result + target_length, o._buffer, source_length * sizeof(char_t));
+ result[result_length] = 0;
+
+ // finalize
+ _buffer = result;
+ _uses_heap = true;
+ }
+ }
+
+ const char_t* c_str() const
+ {
+ return _buffer;
+ }
+
+ size_t length() const
+ {
+ return strlength(_buffer);
+ }
+
+ char_t* data(xpath_allocator* alloc)
+ {
+ // make private heap copy
+ if (!_uses_heap)
+ {
+ _buffer = duplicate_string(_buffer, alloc);
+ _uses_heap = true;
+ }
+
+ return const_cast<char_t*>(_buffer);
+ }
+
+ bool empty() const
+ {
+ return *_buffer == 0;
+ }
+
+ bool operator==(const xpath_string& o) const
+ {
+ return strequal(_buffer, o._buffer);
+ }
+
+ bool operator!=(const xpath_string& o) const
+ {
+ return !strequal(_buffer, o._buffer);
+ }
+
+ bool uses_heap() const
+ {
+ return _uses_heap;
+ }
+ };
+
+ PUGI__FN xpath_string xpath_string_const(const char_t* str)
+ {
+ return xpath_string(str, false);
+ }
+PUGI__NS_END
+
+PUGI__NS_BEGIN
+ PUGI__FN bool starts_with(const char_t* string, const char_t* pattern)
+ {
+ while (*pattern && *string == *pattern)
+ {
+ string++;
+ pattern++;
+ }
+
+ return *pattern == 0;
+ }
+
+ PUGI__FN const char_t* find_char(const char_t* s, char_t c)
+ {
+ #ifdef PUGIXML_WCHAR_MODE
+ return wcschr(s, c);
+ #else
+ return strchr(s, c);
+ #endif
+ }
+
+ PUGI__FN const char_t* find_substring(const char_t* s, const char_t* p)
+ {
+ #ifdef PUGIXML_WCHAR_MODE
+ // MSVC6 wcsstr bug workaround (if s is empty it always returns 0)
+ return (*p == 0) ? s : wcsstr(s, p);
+ #else
+ return strstr(s, p);
+ #endif
+ }
+
+ // Converts symbol to lower case, if it is an ASCII one
+ PUGI__FN char_t tolower_ascii(char_t ch)
+ {
+ return static_cast<unsigned int>(ch - 'A') < 26 ? static_cast<char_t>(ch | ' ') : ch;
+ }
+
+ PUGI__FN xpath_string string_value(const xpath_node& na, xpath_allocator* alloc)
+ {
+ if (na.attribute())
+ return xpath_string_const(na.attribute().value());
+ else
+ {
+ const xml_node& n = na.node();
+
+ switch (n.type())
+ {
+ case node_pcdata:
+ case node_cdata:
+ case node_comment:
+ case node_pi:
+ return xpath_string_const(n.value());
+
+ case node_document:
+ case node_element:
+ {
+ xpath_string result;
+
+ xml_node cur = n.first_child();
+
+ while (cur && cur != n)
+ {
+ if (cur.type() == node_pcdata || cur.type() == node_cdata)
+ result.append(xpath_string_const(cur.value()), alloc);
+
+ if (cur.first_child())
+ cur = cur.first_child();
+ else if (cur.next_sibling())
+ cur = cur.next_sibling();
+ else
+ {
+ while (!cur.next_sibling() && cur != n)
+ cur = cur.parent();
+
+ if (cur != n) cur = cur.next_sibling();
+ }
+ }
+
+ return result;
+ }
+
+ default:
+ return xpath_string();
+ }
+ }
+ }
+
+ PUGI__FN unsigned int node_height(xml_node n)
+ {
+ unsigned int result = 0;
+
+ while (n)
+ {
+ ++result;
+ n = n.parent();
+ }
+
+ return result;
+ }
+
+ PUGI__FN bool node_is_before(xml_node ln, unsigned int lh, xml_node rn, unsigned int rh)
+ {
+ // normalize heights
+ for (unsigned int i = rh; i < lh; i++) ln = ln.parent();
+ for (unsigned int j = lh; j < rh; j++) rn = rn.parent();
+
+ // one node is the ancestor of the other
+ if (ln == rn) return lh < rh;
+
+ // find common ancestor
+ while (ln.parent() != rn.parent())
+ {
+ ln = ln.parent();
+ rn = rn.parent();
+ }
+
+ // there is no common ancestor (the shared parent is null), nodes are from different documents
+ if (!ln.parent()) return ln < rn;
+
+ // determine sibling order
+ for (; ln; ln = ln.next_sibling())
+ if (ln == rn)
+ return true;
+
+ return false;
+ }
+
+ PUGI__FN bool node_is_ancestor(xml_node parent, xml_node node)
+ {
+ while (node && node != parent) node = node.parent();
+
+ return parent && node == parent;
+ }
+
+ PUGI__FN const void* document_order(const xpath_node& xnode)
+ {
+ xml_node_struct* node = xnode.node().internal_object();
+
+ if (node)
+ {
+ if (node->name && (node->header & xml_memory_page_name_allocated_mask) == 0) return node->name;
+ if (node->value && (node->header & xml_memory_page_value_allocated_mask) == 0) return node->value;
+ return 0;
+ }
+
+ xml_attribute_struct* attr = xnode.attribute().internal_object();
+
+ if (attr)
+ {
+ if ((attr->header & xml_memory_page_name_allocated_mask) == 0) return attr->name;
+ if ((attr->header & xml_memory_page_value_allocated_mask) == 0) return attr->value;
+ return 0;
+ }
+
+ return 0;
+ }
+
+ struct document_order_comparator
+ {
+ bool operator()(const xpath_node& lhs, const xpath_node& rhs) const
+ {
+ // optimized document order based check
+ const void* lo = document_order(lhs);
+ const void* ro = document_order(rhs);
+
+ if (lo && ro) return lo < ro;
+
+ // slow comparison
+ xml_node ln = lhs.node(), rn = rhs.node();
+
+ // compare attributes
+ if (lhs.attribute() && rhs.attribute())
+ {
+ // shared parent
+ if (lhs.parent() == rhs.parent())
+ {
+ // determine sibling order
+ for (xml_attribute a = lhs.attribute(); a; a = a.next_attribute())
+ if (a == rhs.attribute())
+ return true;
+
+ return false;
+ }
+
+ // compare attribute parents
+ ln = lhs.parent();
+ rn = rhs.parent();
+ }
+ else if (lhs.attribute())
+ {
+ // attributes go after the parent element
+ if (lhs.parent() == rhs.node()) return false;
+
+ ln = lhs.parent();
+ }
+ else if (rhs.attribute())
+ {
+ // attributes go after the parent element
+ if (rhs.parent() == lhs.node()) return true;
+
+ rn = rhs.parent();
+ }
+
+ if (ln == rn) return false;
+
+ unsigned int lh = node_height(ln);
+ unsigned int rh = node_height(rn);
+
+ return node_is_before(ln, lh, rn, rh);
+ }
+ };
+
+ struct duplicate_comparator
+ {
+ bool operator()(const xpath_node& lhs, const xpath_node& rhs) const
+ {
+ if (lhs.attribute()) return rhs.attribute() ? lhs.attribute() < rhs.attribute() : true;
+ else return rhs.attribute() ? false : lhs.node() < rhs.node();
+ }
+ };
+
+ PUGI__FN double gen_nan()
+ {
+ #if defined(__STDC_IEC_559__) || ((FLT_RADIX - 0 == 2) && (FLT_MAX_EXP - 0 == 128) && (FLT_MANT_DIG - 0 == 24))
+ union { float f; uint32_t i; } u[sizeof(float) == sizeof(uint32_t) ? 1 : -1];
+ u[0].i = 0x7fc00000;
+ return u[0].f;
+ #else
+ // fallback
+ const volatile double zero = 0.0;
+ return zero / zero;
+ #endif
+ }
+
+ PUGI__FN bool is_nan(double value)
+ {
+ #if defined(PUGI__MSVC_CRT_VERSION) || defined(__BORLANDC__)
+ return !!_isnan(value);
+ #elif defined(fpclassify) && defined(FP_NAN)
+ return fpclassify(value) == FP_NAN;
+ #else
+ // fallback
+ const volatile double v = value;
+ return v != v;
+ #endif
+ }
+
+ PUGI__FN const char_t* convert_number_to_string_special(double value)
+ {
+ #if defined(PUGI__MSVC_CRT_VERSION) || defined(__BORLANDC__)
+ if (_finite(value)) return (value == 0) ? PUGIXML_TEXT("0") : 0;
+ if (_isnan(value)) return PUGIXML_TEXT("NaN");
+ return value > 0 ? PUGIXML_TEXT("Infinity") : PUGIXML_TEXT("-Infinity");
+ #elif defined(fpclassify) && defined(FP_NAN) && defined(FP_INFINITE) && defined(FP_ZERO)
+ switch (fpclassify(value))
+ {
+ case FP_NAN:
+ return PUGIXML_TEXT("NaN");
+
+ case FP_INFINITE:
+ return value > 0 ? PUGIXML_TEXT("Infinity") : PUGIXML_TEXT("-Infinity");
+
+ case FP_ZERO:
+ return PUGIXML_TEXT("0");
+
+ default:
+ return 0;
+ }
+ #else
+ // fallback
+ const volatile double v = value;
+
+ if (v == 0) return PUGIXML_TEXT("0");
+ if (v != v) return PUGIXML_TEXT("NaN");
+ if (v * 2 == v) return value > 0 ? PUGIXML_TEXT("Infinity") : PUGIXML_TEXT("-Infinity");
+ return 0;
+ #endif
+ }
+
+ PUGI__FN bool convert_number_to_boolean(double value)
+ {
+ return (value != 0 && !is_nan(value));
+ }
+
+ PUGI__FN void truncate_zeros(char* begin, char* end)
+ {
+ while (begin != end && end[-1] == '0') end--;
+
+ *end = 0;
+ }
+
+ // gets mantissa digits in the form of 0.xxxxx with 0. implied and the exponent
+#if defined(PUGI__MSVC_CRT_VERSION) && PUGI__MSVC_CRT_VERSION >= 1400 && !defined(_WIN32_WCE)
+ PUGI__FN void convert_number_to_mantissa_exponent(double value, char* buffer, size_t buffer_size, char** out_mantissa, int* out_exponent)
+ {
+ // get base values
+ int sign, exponent;
+ _ecvt_s(buffer, buffer_size, value, DBL_DIG + 1, &exponent, &sign);
+
+ // truncate redundant zeros
+ truncate_zeros(buffer, buffer + strlen(buffer));
+
+ // fill results
+ *out_mantissa = buffer;
+ *out_exponent = exponent;
+ }
+#else
+ PUGI__FN void convert_number_to_mantissa_exponent(double value, char* buffer, size_t buffer_size, char** out_mantissa, int* out_exponent)
+ {
+ // get a scientific notation value with IEEE DBL_DIG decimals
+ sprintf(buffer, "%.*e", DBL_DIG, value);
+ assert(strlen(buffer) < buffer_size);
+ (void)!buffer_size;
+
+ // get the exponent (possibly negative)
+ char* exponent_string = strchr(buffer, 'e');
+ assert(exponent_string);
+
+ int exponent = atoi(exponent_string + 1);
+
+ // extract mantissa string: skip sign
+ char* mantissa = buffer[0] == '-' ? buffer + 1 : buffer;
+ assert(mantissa[0] != '0' && mantissa[1] == '.');
+
+ // divide mantissa by 10 to eliminate integer part
+ mantissa[1] = mantissa[0];
+ mantissa++;
+ exponent++;
+
+ // remove extra mantissa digits and zero-terminate mantissa
+ truncate_zeros(mantissa, exponent_string);
+
+ // fill results
+ *out_mantissa = mantissa;
+ *out_exponent = exponent;
+ }
+#endif
+
+ PUGI__FN xpath_string convert_number_to_string(double value, xpath_allocator* alloc)
+ {
+ // try special number conversion
+ const char_t* special = convert_number_to_string_special(value);
+ if (special) return xpath_string_const(special);
+
+ // get mantissa + exponent form
+ char mantissa_buffer[32];
+
+ char* mantissa;
+ int exponent;
+ convert_number_to_mantissa_exponent(value, mantissa_buffer, sizeof(mantissa_buffer), &mantissa, &exponent);
+
+ // allocate a buffer of suitable length for the number
+ size_t result_size = strlen(mantissa_buffer) + (exponent > 0 ? exponent : -exponent) + 4;
+ char_t* result = static_cast<char_t*>(alloc->allocate(sizeof(char_t) * result_size));
+ assert(result);
+
+ // make the number!
+ char_t* s = result;
+
+ // sign
+ if (value < 0) *s++ = '-';
+
+ // integer part
+ if (exponent <= 0)
+ {
+ *s++ = '0';
+ }
+ else
+ {
+ while (exponent > 0)
+ {
+ assert(*mantissa == 0 || static_cast<unsigned int>(static_cast<unsigned int>(*mantissa) - '0') <= 9);
+ *s++ = *mantissa ? *mantissa++ : '0';
+ exponent--;
+ }
+ }
+
+ // fractional part
+ if (*mantissa)
+ {
+ // decimal point
+ *s++ = '.';
+
+ // extra zeroes from negative exponent
+ while (exponent < 0)
+ {
+ *s++ = '0';
+ exponent++;
+ }
+
+ // extra mantissa digits
+ while (*mantissa)
+ {
+ assert(static_cast<unsigned int>(*mantissa - '0') <= 9);
+ *s++ = *mantissa++;
+ }
+ }
+
+ // zero-terminate
+ assert(s < result + result_size);
+ *s = 0;
+
+ return xpath_string(result, true);
+ }
+
+ PUGI__FN bool check_string_to_number_format(const char_t* string)
+ {
+ // parse leading whitespace
+ while (PUGI__IS_CHARTYPE(*string, ct_space)) ++string;
+
+ // parse sign
+ if (*string == '-') ++string;
+
+ if (!*string) return false;
+
+ // if there is no integer part, there should be a decimal part with at least one digit
+ if (!PUGI__IS_CHARTYPEX(string[0], ctx_digit) && (string[0] != '.' || !PUGI__IS_CHARTYPEX(string[1], ctx_digit))) return false;
+
+ // parse integer part
+ while (PUGI__IS_CHARTYPEX(*string, ctx_digit)) ++string;
+
+ // parse decimal part
+ if (*string == '.')
+ {
+ ++string;
+
+ while (PUGI__IS_CHARTYPEX(*string, ctx_digit)) ++string;
+ }
+
+ // parse trailing whitespace
+ while (PUGI__IS_CHARTYPE(*string, ct_space)) ++string;
+
+ return *string == 0;
+ }
+
+ PUGI__FN double convert_string_to_number(const char_t* string)
+ {
+ // check string format
+ if (!check_string_to_number_format(string)) return gen_nan();
+
+ // parse string
+ #ifdef PUGIXML_WCHAR_MODE
+ return wcstod(string, 0);
+ #else
+ return atof(string);
+ #endif
+ }
+
+ PUGI__FN bool convert_string_to_number_scratch(char_t (&buffer)[32], const char_t* begin, const char_t* end, double* out_result)
+ {
+ size_t length = static_cast<size_t>(end - begin);
+ char_t* scratch = buffer;
+
+ if (length >= sizeof(buffer) / sizeof(buffer[0]))
+ {
+ // need to make dummy on-heap copy
+ scratch = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!scratch) return false;
+ }
+
+ // copy string to zero-terminated buffer and perform conversion
+ memcpy(scratch, begin, length * sizeof(char_t));
+ scratch[length] = 0;
+
+ *out_result = convert_string_to_number(scratch);
+
+ // free dummy buffer
+ if (scratch != buffer) xml_memory::deallocate(scratch);
+
+ return true;
+ }
+
+ PUGI__FN double round_nearest(double value)
+ {
+ return floor(value + 0.5);
+ }
+
+ PUGI__FN double round_nearest_nzero(double value)
+ {
+ // same as round_nearest, but returns -0 for [-0.5, -0]
+ // ceil is used to differentiate between +0 and -0 (we return -0 for [-0.5, -0] and +0 for +0)
+ return (value >= -0.5 && value <= 0) ? ceil(value) : floor(value + 0.5);
+ }
+
+ PUGI__FN const char_t* qualified_name(const xpath_node& node)
+ {
+ return node.attribute() ? node.attribute().name() : node.node().name();
+ }
+
+ PUGI__FN const char_t* local_name(const xpath_node& node)
+ {
+ const char_t* name = qualified_name(node);
+ const char_t* p = find_char(name, ':');
+
+ return p ? p + 1 : name;
+ }
+
+ struct namespace_uri_predicate
+ {
+ const char_t* prefix;
+ size_t prefix_length;
+
+ namespace_uri_predicate(const char_t* name)
+ {
+ const char_t* pos = find_char(name, ':');
+
+ prefix = pos ? name : 0;
+ prefix_length = pos ? static_cast<size_t>(pos - name) : 0;
+ }
+
+ bool operator()(const xml_attribute& a) const
+ {
+ const char_t* name = a.name();
+
+ if (!starts_with(name, PUGIXML_TEXT("xmlns"))) return false;
+
+ return prefix ? name[5] == ':' && strequalrange(name + 6, prefix, prefix_length) : name[5] == 0;
+ }
+ };
+
+ PUGI__FN const char_t* namespace_uri(const xml_node& node)
+ {
+ namespace_uri_predicate pred = node.name();
+
+ xml_node p = node;
+
+ while (p)
+ {
+ xml_attribute a = p.find_attribute(pred);
+
+ if (a) return a.value();
+
+ p = p.parent();
+ }
+
+ return PUGIXML_TEXT("");
+ }
+
+ PUGI__FN const char_t* namespace_uri(const xml_attribute& attr, const xml_node& parent)
+ {
+ namespace_uri_predicate pred = attr.name();
+
+ // Default namespace does not apply to attributes
+ if (!pred.prefix) return PUGIXML_TEXT("");
+
+ xml_node p = parent;
+
+ while (p)
+ {
+ xml_attribute a = p.find_attribute(pred);
+
+ if (a) return a.value();
+
+ p = p.parent();
+ }
+
+ return PUGIXML_TEXT("");
+ }
+
+ PUGI__FN const char_t* namespace_uri(const xpath_node& node)
+ {
+ return node.attribute() ? namespace_uri(node.attribute(), node.parent()) : namespace_uri(node.node());
+ }
+
+ PUGI__FN void normalize_space(char_t* buffer)
+ {
+ char_t* write = buffer;
+
+ for (char_t* it = buffer; *it; )
+ {
+ char_t ch = *it++;
+
+ if (PUGI__IS_CHARTYPE(ch, ct_space))
+ {
+ // replace whitespace sequence with single space
+ while (PUGI__IS_CHARTYPE(*it, ct_space)) it++;
+
+ // avoid leading spaces
+ if (write != buffer) *write++ = ' ';
+ }
+ else *write++ = ch;
+ }
+
+ // remove trailing space
+ if (write != buffer && PUGI__IS_CHARTYPE(write[-1], ct_space)) write--;
+
+ // zero-terminate
+ *write = 0;
+ }
+
+ PUGI__FN void translate(char_t* buffer, const char_t* from, const char_t* to)
+ {
+ size_t to_length = strlength(to);
+
+ char_t* write = buffer;
+
+ while (*buffer)
+ {
+ PUGI__DMC_VOLATILE char_t ch = *buffer++;
+
+ const char_t* pos = find_char(from, ch);
+
+ if (!pos)
+ *write++ = ch; // do not process
+ else if (static_cast<size_t>(pos - from) < to_length)
+ *write++ = to[pos - from]; // replace
+ }
+
+ // zero-terminate
+ *write = 0;
+ }
+
+ struct xpath_variable_boolean: xpath_variable
+ {
+ xpath_variable_boolean(): value(false)
+ {
+ }
+
+ bool value;
+ char_t name[1];
+ };
+
+ struct xpath_variable_number: xpath_variable
+ {
+ xpath_variable_number(): value(0)
+ {
+ }
+
+ double value;
+ char_t name[1];
+ };
+
+ struct xpath_variable_string: xpath_variable
+ {
+ xpath_variable_string(): value(0)
+ {
+ }
+
+ ~xpath_variable_string()
+ {
+ if (value) xml_memory::deallocate(value);
+ }
+
+ char_t* value;
+ char_t name[1];
+ };
+
+ struct xpath_variable_node_set: xpath_variable
+ {
+ xpath_node_set value;
+ char_t name[1];
+ };
+
+ static const xpath_node_set dummy_node_set;
+
+ PUGI__FN unsigned int hash_string(const char_t* str)
+ {
+ // Jenkins one-at-a-time hash (http://en.wikipedia.org/wiki/Jenkins_hash_function#one-at-a-time)
+ unsigned int result = 0;
+
+ while (*str)
+ {
+ result += static_cast<unsigned int>(*str++);
+ result += result << 10;
+ result ^= result >> 6;
+ }
+
+ result += result << 3;
+ result ^= result >> 11;
+ result += result << 15;
+
+ return result;
+ }
+
+ template <typename T> PUGI__FN T* new_xpath_variable(const char_t* name)
+ {
+ size_t length = strlength(name);
+ if (length == 0) return 0; // empty variable names are invalid
+
+ // $$ we can't use offsetof(T, name) because T is non-POD, so we just allocate additional length characters
+ void* memory = xml_memory::allocate(sizeof(T) + length * sizeof(char_t));
+ if (!memory) return 0;
+
+ T* result = new (memory) T();
+
+ memcpy(result->name, name, (length + 1) * sizeof(char_t));
+
+ return result;
+ }
+
+ PUGI__FN xpath_variable* new_xpath_variable(xpath_value_type type, const char_t* name)
+ {
+ switch (type)
+ {
+ case xpath_type_node_set:
+ return new_xpath_variable<xpath_variable_node_set>(name);
+
+ case xpath_type_number:
+ return new_xpath_variable<xpath_variable_number>(name);
+
+ case xpath_type_string:
+ return new_xpath_variable<xpath_variable_string>(name);
+
+ case xpath_type_boolean:
+ return new_xpath_variable<xpath_variable_boolean>(name);
+
+ default:
+ return 0;
+ }
+ }
+
+ template <typename T> PUGI__FN void delete_xpath_variable(T* var)
+ {
+ var->~T();
+ xml_memory::deallocate(var);
+ }
+
+ PUGI__FN void delete_xpath_variable(xpath_value_type type, xpath_variable* var)
+ {
+ switch (type)
+ {
+ case xpath_type_node_set:
+ delete_xpath_variable(static_cast<xpath_variable_node_set*>(var));
+ break;
+
+ case xpath_type_number:
+ delete_xpath_variable(static_cast<xpath_variable_number*>(var));
+ break;
+
+ case xpath_type_string:
+ delete_xpath_variable(static_cast<xpath_variable_string*>(var));
+ break;
+
+ case xpath_type_boolean:
+ delete_xpath_variable(static_cast<xpath_variable_boolean*>(var));
+ break;
+
+ default:
+ assert(!"Invalid variable type");
+ }
+ }
+
+ PUGI__FN xpath_variable* get_variable_scratch(char_t (&buffer)[32], xpath_variable_set* set, const char_t* begin, const char_t* end)
+ {
+ size_t length = static_cast<size_t>(end - begin);
+ char_t* scratch = buffer;
+
+ if (length >= sizeof(buffer) / sizeof(buffer[0]))
+ {
+ // need to make dummy on-heap copy
+ scratch = static_cast<char_t*>(xml_memory::allocate((length + 1) * sizeof(char_t)));
+ if (!scratch) return 0;
+ }
+
+ // copy string to zero-terminated buffer and perform lookup
+ memcpy(scratch, begin, length * sizeof(char_t));
+ scratch[length] = 0;
+
+ xpath_variable* result = set->get(scratch);
+
+ // free dummy buffer
+ if (scratch != buffer) xml_memory::deallocate(scratch);
+
+ return result;
+ }
+PUGI__NS_END
+
+// Internal node set class
+PUGI__NS_BEGIN
+ PUGI__FN xpath_node_set::type_t xpath_sort(xpath_node* begin, xpath_node* end, xpath_node_set::type_t type, bool rev)
+ {
+ xpath_node_set::type_t order = rev ? xpath_node_set::type_sorted_reverse : xpath_node_set::type_sorted;
+
+ if (type == xpath_node_set::type_unsorted)
+ {
+ sort(begin, end, document_order_comparator());
+
+ type = xpath_node_set::type_sorted;
+ }
+
+ if (type != order) reverse(begin, end);
+
+ return order;
+ }
+
+ PUGI__FN xpath_node xpath_first(const xpath_node* begin, const xpath_node* end, xpath_node_set::type_t type)
+ {
+ if (begin == end) return xpath_node();
+
+ switch (type)
+ {
+ case xpath_node_set::type_sorted:
+ return *begin;
+
+ case xpath_node_set::type_sorted_reverse:
+ return *(end - 1);
+
+ case xpath_node_set::type_unsorted:
+ return *min_element(begin, end, document_order_comparator());
+
+ default:
+ assert(!"Invalid node set type");
+ return xpath_node();
+ }
+ }
+
+ class xpath_node_set_raw
+ {
+ xpath_node_set::type_t _type;
+
+ xpath_node* _begin;
+ xpath_node* _end;
+ xpath_node* _eos;
+
+ public:
+ xpath_node_set_raw(): _type(xpath_node_set::type_unsorted), _begin(0), _end(0), _eos(0)
+ {
+ }
+
+ xpath_node* begin() const
+ {
+ return _begin;
+ }
+
+ xpath_node* end() const
+ {
+ return _end;
+ }
+
+ bool empty() const
+ {
+ return _begin == _end;
+ }
+
+ size_t size() const
+ {
+ return static_cast<size_t>(_end - _begin);
+ }
+
+ xpath_node first() const
+ {
+ return xpath_first(_begin, _end, _type);
+ }
+
+ void push_back(const xpath_node& node, xpath_allocator* alloc)
+ {
+ if (_end == _eos)
+ {
+ size_t capacity = static_cast<size_t>(_eos - _begin);
+
+ // get new capacity (1.5x rule)
+ size_t new_capacity = capacity + capacity / 2 + 1;
+
+ // reallocate the old array or allocate a new one
+ xpath_node* data = static_cast<xpath_node*>(alloc->reallocate(_begin, capacity * sizeof(xpath_node), new_capacity * sizeof(xpath_node)));
+ assert(data);
+
+ // finalize
+ _begin = data;
+ _end = data + capacity;
+ _eos = data + new_capacity;
+ }
+
+ *_end++ = node;
+ }
+
+ void append(const xpath_node* begin_, const xpath_node* end_, xpath_allocator* alloc)
+ {
+ size_t size_ = static_cast<size_t>(_end - _begin);
+ size_t capacity = static_cast<size_t>(_eos - _begin);
+ size_t count = static_cast<size_t>(end_ - begin_);
+
+ if (size_ + count > capacity)
+ {
+ // reallocate the old array or allocate a new one
+ xpath_node* data = static_cast<xpath_node*>(alloc->reallocate(_begin, capacity * sizeof(xpath_node), (size_ + count) * sizeof(xpath_node)));
+ assert(data);
+
+ // finalize
+ _begin = data;
+ _end = data + size_;
+ _eos = data + size_ + count;
+ }
+
+ memcpy(_end, begin_, count * sizeof(xpath_node));
+ _end += count;
+ }
+
+ void sort_do()
+ {
+ _type = xpath_sort(_begin, _end, _type, false);
+ }
+
+ void truncate(xpath_node* pos)
+ {
+ assert(_begin <= pos && pos <= _end);
+
+ _end = pos;
+ }
+
+ void remove_duplicates()
+ {
+ if (_type == xpath_node_set::type_unsorted)
+ sort(_begin, _end, duplicate_comparator());
+
+ _end = unique(_begin, _end);
+ }
+
+ xpath_node_set::type_t type() const
+ {
+ return _type;
+ }
+
+ void set_type(xpath_node_set::type_t value)
+ {
+ _type = value;
+ }
+ };
+PUGI__NS_END
+
+PUGI__NS_BEGIN
+ struct xpath_context
+ {
+ xpath_node n;
+ size_t position, size;
+
+ xpath_context(const xpath_node& n_, size_t position_, size_t size_): n(n_), position(position_), size(size_)
+ {
+ }
+ };
+
+ enum lexeme_t
+ {
+ lex_none = 0,
+ lex_equal,
+ lex_not_equal,
+ lex_less,
+ lex_greater,
+ lex_less_or_equal,
+ lex_greater_or_equal,
+ lex_plus,
+ lex_minus,
+ lex_multiply,
+ lex_union,
+ lex_var_ref,
+ lex_open_brace,
+ lex_close_brace,
+ lex_quoted_string,
+ lex_number,
+ lex_slash,
+ lex_double_slash,
+ lex_open_square_brace,
+ lex_close_square_brace,
+ lex_string,
+ lex_comma,
+ lex_axis_attribute,
+ lex_dot,
+ lex_double_dot,
+ lex_double_colon,
+ lex_eof
+ };
+
+ struct xpath_lexer_string
+ {
+ const char_t* begin;
+ const char_t* end;
+
+ xpath_lexer_string(): begin(0), end(0)
+ {
+ }
+
+ bool operator==(const char_t* other) const
+ {
+ size_t length = static_cast<size_t>(end - begin);
+
+ return strequalrange(other, begin, length);
+ }
+ };
+
+ class xpath_lexer
+ {
+ const char_t* _cur;
+ const char_t* _cur_lexeme_pos;
+ xpath_lexer_string _cur_lexeme_contents;
+
+ lexeme_t _cur_lexeme;
+
+ public:
+ explicit xpath_lexer(const char_t* query): _cur(query)
+ {
+ next();
+ }
+
+ const char_t* state() const
+ {
+ return _cur;
+ }
+
+ void next()
+ {
+ const char_t* cur = _cur;
+
+ while (PUGI__IS_CHARTYPE(*cur, ct_space)) ++cur;
+
+ // save lexeme position for error reporting
+ _cur_lexeme_pos = cur;
+
+ switch (*cur)
+ {
+ case 0:
+ _cur_lexeme = lex_eof;
+ break;
+
+ case '>':
+ if (*(cur+1) == '=')
+ {
+ cur += 2;
+ _cur_lexeme = lex_greater_or_equal;
+ }
+ else
+ {
+ cur += 1;
+ _cur_lexeme = lex_greater;
+ }
+ break;
+
+ case '<':
+ if (*(cur+1) == '=')
+ {
+ cur += 2;
+ _cur_lexeme = lex_less_or_equal;
+ }
+ else
+ {
+ cur += 1;
+ _cur_lexeme = lex_less;
+ }
+ break;
+
+ case '!':
+ if (*(cur+1) == '=')
+ {
+ cur += 2;
+ _cur_lexeme = lex_not_equal;
+ }
+ else
+ {
+ _cur_lexeme = lex_none;
+ }
+ break;
+
+ case '=':
+ cur += 1;
+ _cur_lexeme = lex_equal;
+
+ break;
+
+ case '+':
+ cur += 1;
+ _cur_lexeme = lex_plus;
+
+ break;
+
+ case '-':
+ cur += 1;
+ _cur_lexeme = lex_minus;
+
+ break;
+
+ case '*':
+ cur += 1;
+ _cur_lexeme = lex_multiply;
+
+ break;
+
+ case '|':
+ cur += 1;
+ _cur_lexeme = lex_union;
+
+ break;
+
+ case '$':
+ cur += 1;
+
+ if (PUGI__IS_CHARTYPEX(*cur, ctx_start_symbol))
+ {
+ _cur_lexeme_contents.begin = cur;
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_symbol)) cur++;
+
+ if (cur[0] == ':' && PUGI__IS_CHARTYPEX(cur[1], ctx_symbol)) // qname
+ {
+ cur++; // :
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_symbol)) cur++;
+ }
+
+ _cur_lexeme_contents.end = cur;
+
+ _cur_lexeme = lex_var_ref;
+ }
+ else
+ {
+ _cur_lexeme = lex_none;
+ }
+
+ break;
+
+ case '(':
+ cur += 1;
+ _cur_lexeme = lex_open_brace;
+
+ break;
+
+ case ')':
+ cur += 1;
+ _cur_lexeme = lex_close_brace;
+
+ break;
+
+ case '[':
+ cur += 1;
+ _cur_lexeme = lex_open_square_brace;
+
+ break;
+
+ case ']':
+ cur += 1;
+ _cur_lexeme = lex_close_square_brace;
+
+ break;
+
+ case ',':
+ cur += 1;
+ _cur_lexeme = lex_comma;
+
+ break;
+
+ case '/':
+ if (*(cur+1) == '/')
+ {
+ cur += 2;
+ _cur_lexeme = lex_double_slash;
+ }
+ else
+ {
+ cur += 1;
+ _cur_lexeme = lex_slash;
+ }
+ break;
+
+ case '.':
+ if (*(cur+1) == '.')
+ {
+ cur += 2;
+ _cur_lexeme = lex_double_dot;
+ }
+ else if (PUGI__IS_CHARTYPEX(*(cur+1), ctx_digit))
+ {
+ _cur_lexeme_contents.begin = cur; // .
+
+ ++cur;
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_digit)) cur++;
+
+ _cur_lexeme_contents.end = cur;
+
+ _cur_lexeme = lex_number;
+ }
+ else
+ {
+ cur += 1;
+ _cur_lexeme = lex_dot;
+ }
+ break;
+
+ case '@':
+ cur += 1;
+ _cur_lexeme = lex_axis_attribute;
+
+ break;
+
+ case '"':
+ case '\'':
+ {
+ char_t terminator = *cur;
+
+ ++cur;
+
+ _cur_lexeme_contents.begin = cur;
+ while (*cur && *cur != terminator) cur++;
+ _cur_lexeme_contents.end = cur;
+
+ if (!*cur)
+ _cur_lexeme = lex_none;
+ else
+ {
+ cur += 1;
+ _cur_lexeme = lex_quoted_string;
+ }
+
+ break;
+ }
+
+ case ':':
+ if (*(cur+1) == ':')
+ {
+ cur += 2;
+ _cur_lexeme = lex_double_colon;
+ }
+ else
+ {
+ _cur_lexeme = lex_none;
+ }
+ break;
+
+ default:
+ if (PUGI__IS_CHARTYPEX(*cur, ctx_digit))
+ {
+ _cur_lexeme_contents.begin = cur;
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_digit)) cur++;
+
+ if (*cur == '.')
+ {
+ cur++;
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_digit)) cur++;
+ }
+
+ _cur_lexeme_contents.end = cur;
+
+ _cur_lexeme = lex_number;
+ }
+ else if (PUGI__IS_CHARTYPEX(*cur, ctx_start_symbol))
+ {
+ _cur_lexeme_contents.begin = cur;
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_symbol)) cur++;
+
+ if (cur[0] == ':')
+ {
+ if (cur[1] == '*') // namespace test ncname:*
+ {
+ cur += 2; // :*
+ }
+ else if (PUGI__IS_CHARTYPEX(cur[1], ctx_symbol)) // namespace test qname
+ {
+ cur++; // :
+
+ while (PUGI__IS_CHARTYPEX(*cur, ctx_symbol)) cur++;
+ }
+ }
+
+ _cur_lexeme_contents.end = cur;
+
+ _cur_lexeme = lex_string;
+ }
+ else
+ {
+ _cur_lexeme = lex_none;
+ }
+ }
+
+ _cur = cur;
+ }
+
+ lexeme_t current() const
+ {
+ return _cur_lexeme;
+ }
+
+ const char_t* current_pos() const
+ {
+ return _cur_lexeme_pos;
+ }
+
+ const xpath_lexer_string& contents() const
+ {
+ assert(_cur_lexeme == lex_var_ref || _cur_lexeme == lex_number || _cur_lexeme == lex_string || _cur_lexeme == lex_quoted_string);
+
+ return _cur_lexeme_contents;
+ }
+ };
+
+ enum ast_type_t
+ {
+ ast_unknown,
+ ast_op_or, // left or right
+ ast_op_and, // left and right
+ ast_op_equal, // left = right
+ ast_op_not_equal, // left != right
+ ast_op_less, // left < right
+ ast_op_greater, // left > right
+ ast_op_less_or_equal, // left <= right
+ ast_op_greater_or_equal, // left >= right
+ ast_op_add, // left + right
+ ast_op_subtract, // left - right
+ ast_op_multiply, // left * right
+ ast_op_divide, // left / right
+ ast_op_mod, // left % right
+ ast_op_negate, // left - right
+ ast_op_union, // left | right
+ ast_predicate, // apply predicate to set; next points to next predicate
+ ast_filter, // select * from left where right
+ ast_filter_posinv, // select * from left where right; proximity position invariant
+ ast_string_constant, // string constant
+ ast_number_constant, // number constant
+ ast_variable, // variable
+ ast_func_last, // last()
+ ast_func_position, // position()
+ ast_func_count, // count(left)
+ ast_func_id, // id(left)
+ ast_func_local_name_0, // local-name()
+ ast_func_local_name_1, // local-name(left)
+ ast_func_namespace_uri_0, // namespace-uri()
+ ast_func_namespace_uri_1, // namespace-uri(left)
+ ast_func_name_0, // name()
+ ast_func_name_1, // name(left)
+ ast_func_string_0, // string()
+ ast_func_string_1, // string(left)
+ ast_func_concat, // concat(left, right, siblings)
+ ast_func_starts_with, // starts_with(left, right)
+ ast_func_contains, // contains(left, right)
+ ast_func_substring_before, // substring-before(left, right)
+ ast_func_substring_after, // substring-after(left, right)
+ ast_func_substring_2, // substring(left, right)
+ ast_func_substring_3, // substring(left, right, third)
+ ast_func_string_length_0, // string-length()
+ ast_func_string_length_1, // string-length(left)
+ ast_func_normalize_space_0, // normalize-space()
+ ast_func_normalize_space_1, // normalize-space(left)
+ ast_func_translate, // translate(left, right, third)
+ ast_func_boolean, // boolean(left)
+ ast_func_not, // not(left)
+ ast_func_true, // true()
+ ast_func_false, // false()
+ ast_func_lang, // lang(left)
+ ast_func_number_0, // number()
+ ast_func_number_1, // number(left)
+ ast_func_sum, // sum(left)
+ ast_func_floor, // floor(left)
+ ast_func_ceiling, // ceiling(left)
+ ast_func_round, // round(left)
+ ast_step, // process set left with step
+ ast_step_root // select root node
+ };
+
+ enum axis_t
+ {
+ axis_ancestor,
+ axis_ancestor_or_self,
+ axis_attribute,
+ axis_child,
+ axis_descendant,
+ axis_descendant_or_self,
+ axis_following,
+ axis_following_sibling,
+ axis_namespace,
+ axis_parent,
+ axis_preceding,
+ axis_preceding_sibling,
+ axis_self
+ };
+
+ enum nodetest_t
+ {
+ nodetest_none,
+ nodetest_name,
+ nodetest_type_node,
+ nodetest_type_comment,
+ nodetest_type_pi,
+ nodetest_type_text,
+ nodetest_pi,
+ nodetest_all,
+ nodetest_all_in_namespace
+ };
+
+ template <axis_t N> struct axis_to_type
+ {
+ static const axis_t axis;
+ };
+
+ template <axis_t N> const axis_t axis_to_type<N>::axis = N;
+
+ class xpath_ast_node
+ {
+ private:
+ // node type
+ char _type;
+ char _rettype;
+
+ // for ast_step / ast_predicate
+ char _axis;
+ char _test;
+
+ // tree node structure
+ xpath_ast_node* _left;
+ xpath_ast_node* _right;
+ xpath_ast_node* _next;
+
+ union
+ {
+ // value for ast_string_constant
+ const char_t* string;
+ // value for ast_number_constant
+ double number;
+ // variable for ast_variable
+ xpath_variable* variable;
+ // node test for ast_step (node name/namespace/node type/pi target)
+ const char_t* nodetest;
+ } _data;
+
+ xpath_ast_node(const xpath_ast_node&);
+ xpath_ast_node& operator=(const xpath_ast_node&);
+
+ template <class Comp> static bool compare_eq(xpath_ast_node* lhs, xpath_ast_node* rhs, const xpath_context& c, const xpath_stack& stack, const Comp& comp)
+ {
+ xpath_value_type lt = lhs->rettype(), rt = rhs->rettype();
+
+ if (lt != xpath_type_node_set && rt != xpath_type_node_set)
+ {
+ if (lt == xpath_type_boolean || rt == xpath_type_boolean)
+ return comp(lhs->eval_boolean(c, stack), rhs->eval_boolean(c, stack));
+ else if (lt == xpath_type_number || rt == xpath_type_number)
+ return comp(lhs->eval_number(c, stack), rhs->eval_number(c, stack));
+ else if (lt == xpath_type_string || rt == xpath_type_string)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_string ls = lhs->eval_string(c, stack);
+ xpath_string rs = rhs->eval_string(c, stack);
+
+ return comp(ls, rs);
+ }
+ }
+ else if (lt == xpath_type_node_set && rt == xpath_type_node_set)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_node_set_raw ls = lhs->eval_node_set(c, stack);
+ xpath_node_set_raw rs = rhs->eval_node_set(c, stack);
+
+ for (const xpath_node* li = ls.begin(); li != ls.end(); ++li)
+ for (const xpath_node* ri = rs.begin(); ri != rs.end(); ++ri)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ if (comp(string_value(*li, stack.result), string_value(*ri, stack.result)))
+ return true;
+ }
+
+ return false;
+ }
+ else
+ {
+ if (lt == xpath_type_node_set)
+ {
+ swap(lhs, rhs);
+ swap(lt, rt);
+ }
+
+ if (lt == xpath_type_boolean)
+ return comp(lhs->eval_boolean(c, stack), rhs->eval_boolean(c, stack));
+ else if (lt == xpath_type_number)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ double l = lhs->eval_number(c, stack);
+ xpath_node_set_raw rs = rhs->eval_node_set(c, stack);
+
+ for (const xpath_node* ri = rs.begin(); ri != rs.end(); ++ri)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ if (comp(l, convert_string_to_number(string_value(*ri, stack.result).c_str())))
+ return true;
+ }
+
+ return false;
+ }
+ else if (lt == xpath_type_string)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_string l = lhs->eval_string(c, stack);
+ xpath_node_set_raw rs = rhs->eval_node_set(c, stack);
+
+ for (const xpath_node* ri = rs.begin(); ri != rs.end(); ++ri)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ if (comp(l, string_value(*ri, stack.result)))
+ return true;
+ }
+
+ return false;
+ }
+ }
+
+ assert(!"Wrong types");
+ return false;
+ }
+
+ template <class Comp> static bool compare_rel(xpath_ast_node* lhs, xpath_ast_node* rhs, const xpath_context& c, const xpath_stack& stack, const Comp& comp)
+ {
+ xpath_value_type lt = lhs->rettype(), rt = rhs->rettype();
+
+ if (lt != xpath_type_node_set && rt != xpath_type_node_set)
+ return comp(lhs->eval_number(c, stack), rhs->eval_number(c, stack));
+ else if (lt == xpath_type_node_set && rt == xpath_type_node_set)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_node_set_raw ls = lhs->eval_node_set(c, stack);
+ xpath_node_set_raw rs = rhs->eval_node_set(c, stack);
+
+ for (const xpath_node* li = ls.begin(); li != ls.end(); ++li)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ double l = convert_string_to_number(string_value(*li, stack.result).c_str());
+
+ for (const xpath_node* ri = rs.begin(); ri != rs.end(); ++ri)
+ {
+ xpath_allocator_capture crii(stack.result);
+
+ if (comp(l, convert_string_to_number(string_value(*ri, stack.result).c_str())))
+ return true;
+ }
+ }
+
+ return false;
+ }
+ else if (lt != xpath_type_node_set && rt == xpath_type_node_set)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ double l = lhs->eval_number(c, stack);
+ xpath_node_set_raw rs = rhs->eval_node_set(c, stack);
+
+ for (const xpath_node* ri = rs.begin(); ri != rs.end(); ++ri)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ if (comp(l, convert_string_to_number(string_value(*ri, stack.result).c_str())))
+ return true;
+ }
+
+ return false;
+ }
+ else if (lt == xpath_type_node_set && rt != xpath_type_node_set)
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_node_set_raw ls = lhs->eval_node_set(c, stack);
+ double r = rhs->eval_number(c, stack);
+
+ for (const xpath_node* li = ls.begin(); li != ls.end(); ++li)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ if (comp(convert_string_to_number(string_value(*li, stack.result).c_str()), r))
+ return true;
+ }
+
+ return false;
+ }
+ else
+ {
+ assert(!"Wrong types");
+ return false;
+ }
+ }
+
+ void apply_predicate(xpath_node_set_raw& ns, size_t first, xpath_ast_node* expr, const xpath_stack& stack)
+ {
+ assert(ns.size() >= first);
+
+ size_t i = 1;
+ size_t size = ns.size() - first;
+
+ xpath_node* last = ns.begin() + first;
+
+ // remove_if... or well, sort of
+ for (xpath_node* it = last; it != ns.end(); ++it, ++i)
+ {
+ xpath_context c(*it, i, size);
+
+ if (expr->rettype() == xpath_type_number)
+ {
+ if (expr->eval_number(c, stack) == i)
+ *last++ = *it;
+ }
+ else if (expr->eval_boolean(c, stack))
+ *last++ = *it;
+ }
+
+ ns.truncate(last);
+ }
+
+ void apply_predicates(xpath_node_set_raw& ns, size_t first, const xpath_stack& stack)
+ {
+ if (ns.size() == first) return;
+
+ for (xpath_ast_node* pred = _right; pred; pred = pred->_next)
+ {
+ apply_predicate(ns, first, pred->_left, stack);
+ }
+ }
+
+ void step_push(xpath_node_set_raw& ns, const xml_attribute& a, const xml_node& parent, xpath_allocator* alloc)
+ {
+ if (!a) return;
+
+ const char_t* name = a.name();
+
+ // There are no attribute nodes corresponding to attributes that declare namespaces
+ // That is, "xmlns:..." or "xmlns"
+ if (starts_with(name, PUGIXML_TEXT("xmlns")) && (name[5] == 0 || name[5] == ':')) return;
+
+ switch (_test)
+ {
+ case nodetest_name:
+ if (strequal(name, _data.nodetest)) ns.push_back(xpath_node(a, parent), alloc);
+ break;
+
+ case nodetest_type_node:
+ case nodetest_all:
+ ns.push_back(xpath_node(a, parent), alloc);
+ break;
+
+ case nodetest_all_in_namespace:
+ if (starts_with(name, _data.nodetest))
+ ns.push_back(xpath_node(a, parent), alloc);
+ break;
+
+ default:
+ ;
+ }
+ }
+
+ void step_push(xpath_node_set_raw& ns, const xml_node& n, xpath_allocator* alloc)
+ {
+ if (!n) return;
+
+ switch (_test)
+ {
+ case nodetest_name:
+ if (n.type() == node_element && strequal(n.name(), _data.nodetest)) ns.push_back(n, alloc);
+ break;
+
+ case nodetest_type_node:
+ ns.push_back(n, alloc);
+ break;
+
+ case nodetest_type_comment:
+ if (n.type() == node_comment)
+ ns.push_back(n, alloc);
+ break;
+
+ case nodetest_type_text:
+ if (n.type() == node_pcdata || n.type() == node_cdata)
+ ns.push_back(n, alloc);
+ break;
+
+ case nodetest_type_pi:
+ if (n.type() == node_pi)
+ ns.push_back(n, alloc);
+ break;
+
+ case nodetest_pi:
+ if (n.type() == node_pi && strequal(n.name(), _data.nodetest))
+ ns.push_back(n, alloc);
+ break;
+
+ case nodetest_all:
+ if (n.type() == node_element)
+ ns.push_back(n, alloc);
+ break;
+
+ case nodetest_all_in_namespace:
+ if (n.type() == node_element && starts_with(n.name(), _data.nodetest))
+ ns.push_back(n, alloc);
+ break;
+
+ default:
+ assert(!"Unknown axis");
+ }
+ }
+
+ template <class T> void step_fill(xpath_node_set_raw& ns, const xml_node& n, xpath_allocator* alloc, T)
+ {
+ const axis_t axis = T::axis;
+
+ switch (axis)
+ {
+ case axis_attribute:
+ {
+ for (xml_attribute a = n.first_attribute(); a; a = a.next_attribute())
+ step_push(ns, a, n, alloc);
+
+ break;
+ }
+
+ case axis_child:
+ {
+ for (xml_node c = n.first_child(); c; c = c.next_sibling())
+ step_push(ns, c, alloc);
+
+ break;
+ }
+
+ case axis_descendant:
+ case axis_descendant_or_self:
+ {
+ if (axis == axis_descendant_or_self)
+ step_push(ns, n, alloc);
+
+ xml_node cur = n.first_child();
+
+ while (cur && cur != n)
+ {
+ step_push(ns, cur, alloc);
+
+ if (cur.first_child())
+ cur = cur.first_child();
+ else if (cur.next_sibling())
+ cur = cur.next_sibling();
+ else
+ {
+ while (!cur.next_sibling() && cur != n)
+ cur = cur.parent();
+
+ if (cur != n) cur = cur.next_sibling();
+ }
+ }
+
+ break;
+ }
+
+ case axis_following_sibling:
+ {
+ for (xml_node c = n.next_sibling(); c; c = c.next_sibling())
+ step_push(ns, c, alloc);
+
+ break;
+ }
+
+ case axis_preceding_sibling:
+ {
+ for (xml_node c = n.previous_sibling(); c; c = c.previous_sibling())
+ step_push(ns, c, alloc);
+
+ break;
+ }
+
+ case axis_following:
+ {
+ xml_node cur = n;
+
+ // exit from this node so that we don't include descendants
+ while (cur && !cur.next_sibling()) cur = cur.parent();
+ cur = cur.next_sibling();
+
+ for (;;)
+ {
+ step_push(ns, cur, alloc);
+
+ if (cur.first_child())
+ cur = cur.first_child();
+ else if (cur.next_sibling())
+ cur = cur.next_sibling();
+ else
+ {
+ while (cur && !cur.next_sibling()) cur = cur.parent();
+ cur = cur.next_sibling();
+
+ if (!cur) break;
+ }
+ }
+
+ break;
+ }
+
+ case axis_preceding:
+ {
+ xml_node cur = n;
+
+ while (cur && !cur.previous_sibling()) cur = cur.parent();
+ cur = cur.previous_sibling();
+
+ for (;;)
+ {
+ if (cur.last_child())
+ cur = cur.last_child();
+ else
+ {
+ // leaf node, can't be ancestor
+ step_push(ns, cur, alloc);
+
+ if (cur.previous_sibling())
+ cur = cur.previous_sibling();
+ else
+ {
+ do
+ {
+ cur = cur.parent();
+ if (!cur) break;
+
+ if (!node_is_ancestor(cur, n)) step_push(ns, cur, alloc);
+ }
+ while (!cur.previous_sibling());
+
+ cur = cur.previous_sibling();
+
+ if (!cur) break;
+ }
+ }
+ }
+
+ break;
+ }
+
+ case axis_ancestor:
+ case axis_ancestor_or_self:
+ {
+ if (axis == axis_ancestor_or_self)
+ step_push(ns, n, alloc);
+
+ xml_node cur = n.parent();
+
+ while (cur)
+ {
+ step_push(ns, cur, alloc);
+
+ cur = cur.parent();
+ }
+
+ break;
+ }
+
+ case axis_self:
+ {
+ step_push(ns, n, alloc);
+
+ break;
+ }
+
+ case axis_parent:
+ {
+ if (n.parent()) step_push(ns, n.parent(), alloc);
+
+ break;
+ }
+
+ default:
+ assert(!"Unimplemented axis");
+ }
+ }
+
+ template <class T> void step_fill(xpath_node_set_raw& ns, const xml_attribute& a, const xml_node& p, xpath_allocator* alloc, T v)
+ {
+ const axis_t axis = T::axis;
+
+ switch (axis)
+ {
+ case axis_ancestor:
+ case axis_ancestor_or_self:
+ {
+ if (axis == axis_ancestor_or_self && _test == nodetest_type_node) // reject attributes based on principal node type test
+ step_push(ns, a, p, alloc);
+
+ xml_node cur = p;
+
+ while (cur)
+ {
+ step_push(ns, cur, alloc);
+
+ cur = cur.parent();
+ }
+
+ break;
+ }
+
+ case axis_descendant_or_self:
+ case axis_self:
+ {
+ if (_test == nodetest_type_node) // reject attributes based on principal node type test
+ step_push(ns, a, p, alloc);
+
+ break;
+ }
+
+ case axis_following:
+ {
+ xml_node cur = p;
+
+ for (;;)
+ {
+ if (cur.first_child())
+ cur = cur.first_child();
+ else if (cur.next_sibling())
+ cur = cur.next_sibling();
+ else
+ {
+ while (cur && !cur.next_sibling()) cur = cur.parent();
+ cur = cur.next_sibling();
+
+ if (!cur) break;
+ }
+
+ step_push(ns, cur, alloc);
+ }
+
+ break;
+ }
+
+ case axis_parent:
+ {
+ step_push(ns, p, alloc);
+
+ break;
+ }
+
+ case axis_preceding:
+ {
+ // preceding:: axis does not include attribute nodes and attribute ancestors (they are the same as parent's ancestors), so we can reuse node preceding
+ step_fill(ns, p, alloc, v);
+ break;
+ }
+
+ default:
+ assert(!"Unimplemented axis");
+ }
+ }
+
+ template <class T> xpath_node_set_raw step_do(const xpath_context& c, const xpath_stack& stack, T v)
+ {
+ const axis_t axis = T::axis;
+ bool attributes = (axis == axis_ancestor || axis == axis_ancestor_or_self || axis == axis_descendant_or_self || axis == axis_following || axis == axis_parent || axis == axis_preceding || axis == axis_self);
+
+ xpath_node_set_raw ns;
+ ns.set_type((axis == axis_ancestor || axis == axis_ancestor_or_self || axis == axis_preceding || axis == axis_preceding_sibling) ? xpath_node_set::type_sorted_reverse : xpath_node_set::type_sorted);
+
+ if (_left)
+ {
+ xpath_node_set_raw s = _left->eval_node_set(c, stack);
+
+ // self axis preserves the original order
+ if (axis == axis_self) ns.set_type(s.type());
+
+ for (const xpath_node* it = s.begin(); it != s.end(); ++it)
+ {
+ size_t size = ns.size();
+
+ // in general, all axes generate elements in a particular order, but there is no order guarantee if axis is applied to two nodes
+ if (axis != axis_self && size != 0) ns.set_type(xpath_node_set::type_unsorted);
+
+ if (it->node())
+ step_fill(ns, it->node(), stack.result, v);
+ else if (attributes)
+ step_fill(ns, it->attribute(), it->parent(), stack.result, v);
+
+ apply_predicates(ns, size, stack);
+ }
+ }
+ else
+ {
+ if (c.n.node())
+ step_fill(ns, c.n.node(), stack.result, v);
+ else if (attributes)
+ step_fill(ns, c.n.attribute(), c.n.parent(), stack.result, v);
+
+ apply_predicates(ns, 0, stack);
+ }
+
+ // child, attribute and self axes always generate unique set of nodes
+ // for other axis, if the set stayed sorted, it stayed unique because the traversal algorithms do not visit the same node twice
+ if (axis != axis_child && axis != axis_attribute && axis != axis_self && ns.type() == xpath_node_set::type_unsorted)
+ ns.remove_duplicates();
+
+ return ns;
+ }
+
+ public:
+ xpath_ast_node(ast_type_t type, xpath_value_type rettype_, const char_t* value):
+ _type(static_cast<char>(type)), _rettype(static_cast<char>(rettype_)), _axis(0), _test(0), _left(0), _right(0), _next(0)
+ {
+ assert(type == ast_string_constant);
+ _data.string = value;
+ }
+
+ xpath_ast_node(ast_type_t type, xpath_value_type rettype_, double value):
+ _type(static_cast<char>(type)), _rettype(static_cast<char>(rettype_)), _axis(0), _test(0), _left(0), _right(0), _next(0)
+ {
+ assert(type == ast_number_constant);
+ _data.number = value;
+ }
+
+ xpath_ast_node(ast_type_t type, xpath_value_type rettype_, xpath_variable* value):
+ _type(static_cast<char>(type)), _rettype(static_cast<char>(rettype_)), _axis(0), _test(0), _left(0), _right(0), _next(0)
+ {
+ assert(type == ast_variable);
+ _data.variable = value;
+ }
+
+ xpath_ast_node(ast_type_t type, xpath_value_type rettype_, xpath_ast_node* left = 0, xpath_ast_node* right = 0):
+ _type(static_cast<char>(type)), _rettype(static_cast<char>(rettype_)), _axis(0), _test(0), _left(left), _right(right), _next(0)
+ {
+ }
+
+ xpath_ast_node(ast_type_t type, xpath_ast_node* left, axis_t axis, nodetest_t test, const char_t* contents):
+ _type(static_cast<char>(type)), _rettype(xpath_type_node_set), _axis(static_cast<char>(axis)), _test(static_cast<char>(test)), _left(left), _right(0), _next(0)
+ {
+ _data.nodetest = contents;
+ }
+
+ void set_next(xpath_ast_node* value)
+ {
+ _next = value;
+ }
+
+ void set_right(xpath_ast_node* value)
+ {
+ _right = value;
+ }
+
+ bool eval_boolean(const xpath_context& c, const xpath_stack& stack)
+ {
+ switch (_type)
+ {
+ case ast_op_or:
+ return _left->eval_boolean(c, stack) || _right->eval_boolean(c, stack);
+
+ case ast_op_and:
+ return _left->eval_boolean(c, stack) && _right->eval_boolean(c, stack);
+
+ case ast_op_equal:
+ return compare_eq(_left, _right, c, stack, equal_to());
+
+ case ast_op_not_equal:
+ return compare_eq(_left, _right, c, stack, not_equal_to());
+
+ case ast_op_less:
+ return compare_rel(_left, _right, c, stack, less());
+
+ case ast_op_greater:
+ return compare_rel(_right, _left, c, stack, less());
+
+ case ast_op_less_or_equal:
+ return compare_rel(_left, _right, c, stack, less_equal());
+
+ case ast_op_greater_or_equal:
+ return compare_rel(_right, _left, c, stack, less_equal());
+
+ case ast_func_starts_with:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_string lr = _left->eval_string(c, stack);
+ xpath_string rr = _right->eval_string(c, stack);
+
+ return starts_with(lr.c_str(), rr.c_str());
+ }
+
+ case ast_func_contains:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_string lr = _left->eval_string(c, stack);
+ xpath_string rr = _right->eval_string(c, stack);
+
+ return find_substring(lr.c_str(), rr.c_str()) != 0;
+ }
+
+ case ast_func_boolean:
+ return _left->eval_boolean(c, stack);
+
+ case ast_func_not:
+ return !_left->eval_boolean(c, stack);
+
+ case ast_func_true:
+ return true;
+
+ case ast_func_false:
+ return false;
+
+ case ast_func_lang:
+ {
+ if (c.n.attribute()) return false;
+
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_string lang = _left->eval_string(c, stack);
+
+ for (xml_node n = c.n.node(); n; n = n.parent())
+ {
+ xml_attribute a = n.attribute(PUGIXML_TEXT("xml:lang"));
+
+ if (a)
+ {
+ const char_t* value = a.value();
+
+ // strnicmp / strncasecmp is not portable
+ for (const char_t* lit = lang.c_str(); *lit; ++lit)
+ {
+ if (tolower_ascii(*lit) != tolower_ascii(*value)) return false;
+ ++value;
+ }
+
+ return *value == 0 || *value == '-';
+ }
+ }
+
+ return false;
+ }
+
+ case ast_variable:
+ {
+ assert(_rettype == _data.variable->type());
+
+ if (_rettype == xpath_type_boolean)
+ return _data.variable->get_boolean();
+
+ // fallthrough to type conversion
+ }
+
+ default:
+ {
+ switch (_rettype)
+ {
+ case xpath_type_number:
+ return convert_number_to_boolean(eval_number(c, stack));
+
+ case xpath_type_string:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return !eval_string(c, stack).empty();
+ }
+
+ case xpath_type_node_set:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return !eval_node_set(c, stack).empty();
+ }
+
+ default:
+ assert(!"Wrong expression for return type boolean");
+ return false;
+ }
+ }
+ }
+ }
+
+ double eval_number(const xpath_context& c, const xpath_stack& stack)
+ {
+ switch (_type)
+ {
+ case ast_op_add:
+ return _left->eval_number(c, stack) + _right->eval_number(c, stack);
+
+ case ast_op_subtract:
+ return _left->eval_number(c, stack) - _right->eval_number(c, stack);
+
+ case ast_op_multiply:
+ return _left->eval_number(c, stack) * _right->eval_number(c, stack);
+
+ case ast_op_divide:
+ return _left->eval_number(c, stack) / _right->eval_number(c, stack);
+
+ case ast_op_mod:
+ return fmod(_left->eval_number(c, stack), _right->eval_number(c, stack));
+
+ case ast_op_negate:
+ return -_left->eval_number(c, stack);
+
+ case ast_number_constant:
+ return _data.number;
+
+ case ast_func_last:
+ return static_cast<double>(c.size);
+
+ case ast_func_position:
+ return static_cast<double>(c.position);
+
+ case ast_func_count:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return static_cast<double>(_left->eval_node_set(c, stack).size());
+ }
+
+ case ast_func_string_length_0:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return static_cast<double>(string_value(c.n, stack.result).length());
+ }
+
+ case ast_func_string_length_1:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return static_cast<double>(_left->eval_string(c, stack).length());
+ }
+
+ case ast_func_number_0:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return convert_string_to_number(string_value(c.n, stack.result).c_str());
+ }
+
+ case ast_func_number_1:
+ return _left->eval_number(c, stack);
+
+ case ast_func_sum:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ double r = 0;
+
+ xpath_node_set_raw ns = _left->eval_node_set(c, stack);
+
+ for (const xpath_node* it = ns.begin(); it != ns.end(); ++it)
+ {
+ xpath_allocator_capture cri(stack.result);
+
+ r += convert_string_to_number(string_value(*it, stack.result).c_str());
+ }
+
+ return r;
+ }
+
+ case ast_func_floor:
+ {
+ double r = _left->eval_number(c, stack);
+
+ return r == r ? floor(r) : r;
+ }
+
+ case ast_func_ceiling:
+ {
+ double r = _left->eval_number(c, stack);
+
+ return r == r ? ceil(r) : r;
+ }
+
+ case ast_func_round:
+ return round_nearest_nzero(_left->eval_number(c, stack));
+
+ case ast_variable:
+ {
+ assert(_rettype == _data.variable->type());
+
+ if (_rettype == xpath_type_number)
+ return _data.variable->get_number();
+
+ // fallthrough to type conversion
+ }
+
+ default:
+ {
+ switch (_rettype)
+ {
+ case xpath_type_boolean:
+ return eval_boolean(c, stack) ? 1 : 0;
+
+ case xpath_type_string:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return convert_string_to_number(eval_string(c, stack).c_str());
+ }
+
+ case xpath_type_node_set:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ return convert_string_to_number(eval_string(c, stack).c_str());
+ }
+
+ default:
+ assert(!"Wrong expression for return type number");
+ return 0;
+ }
+
+ }
+ }
+ }
+
+ xpath_string eval_string_concat(const xpath_context& c, const xpath_stack& stack)
+ {
+ assert(_type == ast_func_concat);
+
+ xpath_allocator_capture ct(stack.temp);
+
+ // count the string number
+ size_t count = 1;
+ for (xpath_ast_node* nc = _right; nc; nc = nc->_next) count++;
+
+ // gather all strings
+ xpath_string static_buffer[4];
+ xpath_string* buffer = static_buffer;
+
+ // allocate on-heap for large concats
+ if (count > sizeof(static_buffer) / sizeof(static_buffer[0]))
+ {
+ buffer = static_cast<xpath_string*>(stack.temp->allocate(count * sizeof(xpath_string)));
+ assert(buffer);
+ }
+
+ // evaluate all strings to temporary stack
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ buffer[0] = _left->eval_string(c, swapped_stack);
+
+ size_t pos = 1;
+ for (xpath_ast_node* n = _right; n; n = n->_next, ++pos) buffer[pos] = n->eval_string(c, swapped_stack);
+ assert(pos == count);
+
+ // get total length
+ size_t length = 0;
+ for (size_t i = 0; i < count; ++i) length += buffer[i].length();
+
+ // create final string
+ char_t* result = static_cast<char_t*>(stack.result->allocate((length + 1) * sizeof(char_t)));
+ assert(result);
+
+ char_t* ri = result;
+
+ for (size_t j = 0; j < count; ++j)
+ for (const char_t* bi = buffer[j].c_str(); *bi; ++bi)
+ *ri++ = *bi;
+
+ *ri = 0;
+
+ return xpath_string(result, true);
+ }
+
+ xpath_string eval_string(const xpath_context& c, const xpath_stack& stack)
+ {
+ switch (_type)
+ {
+ case ast_string_constant:
+ return xpath_string_const(_data.string);
+
+ case ast_func_local_name_0:
+ {
+ xpath_node na = c.n;
+
+ return xpath_string_const(local_name(na));
+ }
+
+ case ast_func_local_name_1:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_node_set_raw ns = _left->eval_node_set(c, stack);
+ xpath_node na = ns.first();
+
+ return xpath_string_const(local_name(na));
+ }
+
+ case ast_func_name_0:
+ {
+ xpath_node na = c.n;
+
+ return xpath_string_const(qualified_name(na));
+ }
+
+ case ast_func_name_1:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_node_set_raw ns = _left->eval_node_set(c, stack);
+ xpath_node na = ns.first();
+
+ return xpath_string_const(qualified_name(na));
+ }
+
+ case ast_func_namespace_uri_0:
+ {
+ xpath_node na = c.n;
+
+ return xpath_string_const(namespace_uri(na));
+ }
+
+ case ast_func_namespace_uri_1:
+ {
+ xpath_allocator_capture cr(stack.result);
+
+ xpath_node_set_raw ns = _left->eval_node_set(c, stack);
+ xpath_node na = ns.first();
+
+ return xpath_string_const(namespace_uri(na));
+ }
+
+ case ast_func_string_0:
+ return string_value(c.n, stack.result);
+
+ case ast_func_string_1:
+ return _left->eval_string(c, stack);
+
+ case ast_func_concat:
+ return eval_string_concat(c, stack);
+
+ case ast_func_substring_before:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_string s = _left->eval_string(c, swapped_stack);
+ xpath_string p = _right->eval_string(c, swapped_stack);
+
+ const char_t* pos = find_substring(s.c_str(), p.c_str());
+
+ return pos ? xpath_string(s.c_str(), pos, stack.result) : xpath_string();
+ }
+
+ case ast_func_substring_after:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_string s = _left->eval_string(c, swapped_stack);
+ xpath_string p = _right->eval_string(c, swapped_stack);
+
+ const char_t* pos = find_substring(s.c_str(), p.c_str());
+ if (!pos) return xpath_string();
+
+ const char_t* result = pos + p.length();
+
+ return s.uses_heap() ? xpath_string(result, stack.result) : xpath_string_const(result);
+ }
+
+ case ast_func_substring_2:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_string s = _left->eval_string(c, swapped_stack);
+ size_t s_length = s.length();
+
+ double first = round_nearest(_right->eval_number(c, stack));
+
+ if (is_nan(first)) return xpath_string(); // NaN
+ else if (first >= s_length + 1) return xpath_string();
+
+ size_t pos = first < 1 ? 1 : static_cast<size_t>(first);
+ assert(1 <= pos && pos <= s_length + 1);
+
+ const char_t* rbegin = s.c_str() + (pos - 1);
+
+ return s.uses_heap() ? xpath_string(rbegin, stack.result) : xpath_string_const(rbegin);
+ }
+
+ case ast_func_substring_3:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_string s = _left->eval_string(c, swapped_stack);
+ size_t s_length = s.length();
+
+ double first = round_nearest(_right->eval_number(c, stack));
+ double last = first + round_nearest(_right->_next->eval_number(c, stack));
+
+ if (is_nan(first) || is_nan(last)) return xpath_string();
+ else if (first >= s_length + 1) return xpath_string();
+ else if (first >= last) return xpath_string();
+ else if (last < 1) return xpath_string();
+
+ size_t pos = first < 1 ? 1 : static_cast<size_t>(first);
+ size_t end = last >= s_length + 1 ? s_length + 1 : static_cast<size_t>(last);
+
+ assert(1 <= pos && pos <= end && end <= s_length + 1);
+ const char_t* rbegin = s.c_str() + (pos - 1);
+ const char_t* rend = s.c_str() + (end - 1);
+
+ return (end == s_length + 1 && !s.uses_heap()) ? xpath_string_const(rbegin) : xpath_string(rbegin, rend, stack.result);
+ }
+
+ case ast_func_normalize_space_0:
+ {
+ xpath_string s = string_value(c.n, stack.result);
+
+ normalize_space(s.data(stack.result));
+
+ return s;
+ }
+
+ case ast_func_normalize_space_1:
+ {
+ xpath_string s = _left->eval_string(c, stack);
+
+ normalize_space(s.data(stack.result));
+
+ return s;
+ }
+
+ case ast_func_translate:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_string s = _left->eval_string(c, stack);
+ xpath_string from = _right->eval_string(c, swapped_stack);
+ xpath_string to = _right->_next->eval_string(c, swapped_stack);
+
+ translate(s.data(stack.result), from.c_str(), to.c_str());
+
+ return s;
+ }
+
+ case ast_variable:
+ {
+ assert(_rettype == _data.variable->type());
+
+ if (_rettype == xpath_type_string)
+ return xpath_string_const(_data.variable->get_string());
+
+ // fallthrough to type conversion
+ }
+
+ default:
+ {
+ switch (_rettype)
+ {
+ case xpath_type_boolean:
+ return xpath_string_const(eval_boolean(c, stack) ? PUGIXML_TEXT("true") : PUGIXML_TEXT("false"));
+
+ case xpath_type_number:
+ return convert_number_to_string(eval_number(c, stack), stack.result);
+
+ case xpath_type_node_set:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_node_set_raw ns = eval_node_set(c, swapped_stack);
+ return ns.empty() ? xpath_string() : string_value(ns.first(), stack.result);
+ }
+
+ default:
+ assert(!"Wrong expression for return type string");
+ return xpath_string();
+ }
+ }
+ }
+ }
+
+ xpath_node_set_raw eval_node_set(const xpath_context& c, const xpath_stack& stack)
+ {
+ switch (_type)
+ {
+ case ast_op_union:
+ {
+ xpath_allocator_capture cr(stack.temp);
+
+ xpath_stack swapped_stack = {stack.temp, stack.result};
+
+ xpath_node_set_raw ls = _left->eval_node_set(c, swapped_stack);
+ xpath_node_set_raw rs = _right->eval_node_set(c, stack);
+
+ // we can optimize merging two sorted sets, but this is a very rare operation, so don't bother
+ rs.set_type(xpath_node_set::type_unsorted);
+
+ rs.append(ls.begin(), ls.end(), stack.result);
+ rs.remove_duplicates();
+
+ return rs;
+ }
+
+ case ast_filter:
+ case ast_filter_posinv:
+ {
+ xpath_node_set_raw set = _left->eval_node_set(c, stack);
+
+ // either expression is a number or it contains position() call; sort by document order
+ if (_type == ast_filter) set.sort_do();
+
+ apply_predicate(set, 0, _right, stack);
+
+ return set;
+ }
+
+ case ast_func_id:
+ return xpath_node_set_raw();
+
+ case ast_step:
+ {
+ switch (_axis)
+ {
+ case axis_ancestor:
+ return step_do(c, stack, axis_to_type<axis_ancestor>());
+
+ case axis_ancestor_or_self:
+ return step_do(c, stack, axis_to_type<axis_ancestor_or_self>());
+
+ case axis_attribute:
+ return step_do(c, stack, axis_to_type<axis_attribute>());
+
+ case axis_child:
+ return step_do(c, stack, axis_to_type<axis_child>());
+
+ case axis_descendant:
+ return step_do(c, stack, axis_to_type<axis_descendant>());
+
+ case axis_descendant_or_self:
+ return step_do(c, stack, axis_to_type<axis_descendant_or_self>());
+
+ case axis_following:
+ return step_do(c, stack, axis_to_type<axis_following>());
+
+ case axis_following_sibling:
+ return step_do(c, stack, axis_to_type<axis_following_sibling>());
+
+ case axis_namespace:
+ // namespaced axis is not supported
+ return xpath_node_set_raw();
+
+ case axis_parent:
+ return step_do(c, stack, axis_to_type<axis_parent>());
+
+ case axis_preceding:
+ return step_do(c, stack, axis_to_type<axis_preceding>());
+
+ case axis_preceding_sibling:
+ return step_do(c, stack, axis_to_type<axis_preceding_sibling>());
+
+ case axis_self:
+ return step_do(c, stack, axis_to_type<axis_self>());
+
+ default:
+ assert(!"Unknown axis");
+ return xpath_node_set_raw();
+ }
+ }
+
+ case ast_step_root:
+ {
+ assert(!_right); // root step can't have any predicates
+
+ xpath_node_set_raw ns;
+
+ ns.set_type(xpath_node_set::type_sorted);
+
+ if (c.n.node()) ns.push_back(c.n.node().root(), stack.result);
+ else if (c.n.attribute()) ns.push_back(c.n.parent().root(), stack.result);
+
+ return ns;
+ }
+
+ case ast_variable:
+ {
+ assert(_rettype == _data.variable->type());
+
+ if (_rettype == xpath_type_node_set)
+ {
+ const xpath_node_set& s = _data.variable->get_node_set();
+
+ xpath_node_set_raw ns;
+
+ ns.set_type(s.type());
+ ns.append(s.begin(), s.end(), stack.result);
+
+ return ns;
+ }
+
+ // fallthrough to type conversion
+ }
+
+ default:
+ assert(!"Wrong expression for return type node set");
+ return xpath_node_set_raw();
+ }
+ }
+
+ bool is_posinv()
+ {
+ switch (_type)
+ {
+ case ast_func_position:
+ return false;
+
+ case ast_string_constant:
+ case ast_number_constant:
+ case ast_variable:
+ return true;
+
+ case ast_step:
+ case ast_step_root:
+ return true;
+
+ case ast_predicate:
+ case ast_filter:
+ case ast_filter_posinv:
+ return true;
+
+ default:
+ if (_left && !_left->is_posinv()) return false;
+
+ for (xpath_ast_node* n = _right; n; n = n->_next)
+ if (!n->is_posinv()) return false;
+
+ return true;
+ }
+ }
+
+ xpath_value_type rettype() const
+ {
+ return static_cast<xpath_value_type>(_rettype);
+ }
+ };
+
+ struct xpath_parser
+ {
+ xpath_allocator* _alloc;
+ xpath_lexer _lexer;
+
+ const char_t* _query;
+ xpath_variable_set* _variables;
+
+ xpath_parse_result* _result;
+
+ char_t _scratch[32];
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ jmp_buf _error_handler;
+ #endif
+
+ void throw_error(const char* message)
+ {
+ _result->error = message;
+ _result->offset = _lexer.current_pos() - _query;
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ longjmp(_error_handler, 1);
+ #else
+ throw xpath_exception(*_result);
+ #endif
+ }
+
+ void throw_error_oom()
+ {
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ throw_error("Out of memory");
+ #else
+ throw std::bad_alloc();
+ #endif
+ }
+
+ void* alloc_node()
+ {
+ void* result = _alloc->allocate_nothrow(sizeof(xpath_ast_node));
+
+ if (!result) throw_error_oom();
+
+ return result;
+ }
+
+ const char_t* alloc_string(const xpath_lexer_string& value)
+ {
+ if (value.begin)
+ {
+ size_t length = static_cast<size_t>(value.end - value.begin);
+
+ char_t* c = static_cast<char_t*>(_alloc->allocate_nothrow((length + 1) * sizeof(char_t)));
+ if (!c) throw_error_oom();
+ assert(c); // workaround for clang static analysis
+
+ memcpy(c, value.begin, length * sizeof(char_t));
+ c[length] = 0;
+
+ return c;
+ }
+ else return 0;
+ }
+
+ xpath_ast_node* parse_function_helper(ast_type_t type0, ast_type_t type1, size_t argc, xpath_ast_node* args[2])
+ {
+ assert(argc <= 1);
+
+ if (argc == 1 && args[0]->rettype() != xpath_type_node_set) throw_error("Function has to be applied to node set");
+
+ return new (alloc_node()) xpath_ast_node(argc == 0 ? type0 : type1, xpath_type_string, args[0]);
+ }
+
+ xpath_ast_node* parse_function(const xpath_lexer_string& name, size_t argc, xpath_ast_node* args[2])
+ {
+ switch (name.begin[0])
+ {
+ case 'b':
+ if (name == PUGIXML_TEXT("boolean") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_boolean, xpath_type_boolean, args[0]);
+
+ break;
+
+ case 'c':
+ if (name == PUGIXML_TEXT("count") && argc == 1)
+ {
+ if (args[0]->rettype() != xpath_type_node_set) throw_error("Function has to be applied to node set");
+ return new (alloc_node()) xpath_ast_node(ast_func_count, xpath_type_number, args[0]);
+ }
+ else if (name == PUGIXML_TEXT("contains") && argc == 2)
+ return new (alloc_node()) xpath_ast_node(ast_func_contains, xpath_type_boolean, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("concat") && argc >= 2)
+ return new (alloc_node()) xpath_ast_node(ast_func_concat, xpath_type_string, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("ceiling") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_ceiling, xpath_type_number, args[0]);
+
+ break;
+
+ case 'f':
+ if (name == PUGIXML_TEXT("false") && argc == 0)
+ return new (alloc_node()) xpath_ast_node(ast_func_false, xpath_type_boolean);
+ else if (name == PUGIXML_TEXT("floor") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_floor, xpath_type_number, args[0]);
+
+ break;
+
+ case 'i':
+ if (name == PUGIXML_TEXT("id") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_id, xpath_type_node_set, args[0]);
+
+ break;
+
+ case 'l':
+ if (name == PUGIXML_TEXT("last") && argc == 0)
+ return new (alloc_node()) xpath_ast_node(ast_func_last, xpath_type_number);
+ else if (name == PUGIXML_TEXT("lang") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_lang, xpath_type_boolean, args[0]);
+ else if (name == PUGIXML_TEXT("local-name") && argc <= 1)
+ return parse_function_helper(ast_func_local_name_0, ast_func_local_name_1, argc, args);
+
+ break;
+
+ case 'n':
+ if (name == PUGIXML_TEXT("name") && argc <= 1)
+ return parse_function_helper(ast_func_name_0, ast_func_name_1, argc, args);
+ else if (name == PUGIXML_TEXT("namespace-uri") && argc <= 1)
+ return parse_function_helper(ast_func_namespace_uri_0, ast_func_namespace_uri_1, argc, args);
+ else if (name == PUGIXML_TEXT("normalize-space") && argc <= 1)
+ return new (alloc_node()) xpath_ast_node(argc == 0 ? ast_func_normalize_space_0 : ast_func_normalize_space_1, xpath_type_string, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("not") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_not, xpath_type_boolean, args[0]);
+ else if (name == PUGIXML_TEXT("number") && argc <= 1)
+ return new (alloc_node()) xpath_ast_node(argc == 0 ? ast_func_number_0 : ast_func_number_1, xpath_type_number, args[0]);
+
+ break;
+
+ case 'p':
+ if (name == PUGIXML_TEXT("position") && argc == 0)
+ return new (alloc_node()) xpath_ast_node(ast_func_position, xpath_type_number);
+
+ break;
+
+ case 'r':
+ if (name == PUGIXML_TEXT("round") && argc == 1)
+ return new (alloc_node()) xpath_ast_node(ast_func_round, xpath_type_number, args[0]);
+
+ break;
+
+ case 's':
+ if (name == PUGIXML_TEXT("string") && argc <= 1)
+ return new (alloc_node()) xpath_ast_node(argc == 0 ? ast_func_string_0 : ast_func_string_1, xpath_type_string, args[0]);
+ else if (name == PUGIXML_TEXT("string-length") && argc <= 1)
+ return new (alloc_node()) xpath_ast_node(argc == 0 ? ast_func_string_length_0 : ast_func_string_length_1, xpath_type_number, args[0]);
+ else if (name == PUGIXML_TEXT("starts-with") && argc == 2)
+ return new (alloc_node()) xpath_ast_node(ast_func_starts_with, xpath_type_boolean, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("substring-before") && argc == 2)
+ return new (alloc_node()) xpath_ast_node(ast_func_substring_before, xpath_type_string, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("substring-after") && argc == 2)
+ return new (alloc_node()) xpath_ast_node(ast_func_substring_after, xpath_type_string, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("substring") && (argc == 2 || argc == 3))
+ return new (alloc_node()) xpath_ast_node(argc == 2 ? ast_func_substring_2 : ast_func_substring_3, xpath_type_string, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("sum") && argc == 1)
+ {
+ if (args[0]->rettype() != xpath_type_node_set) throw_error("Function has to be applied to node set");
+ return new (alloc_node()) xpath_ast_node(ast_func_sum, xpath_type_number, args[0]);
+ }
+
+ break;
+
+ case 't':
+ if (name == PUGIXML_TEXT("translate") && argc == 3)
+ return new (alloc_node()) xpath_ast_node(ast_func_translate, xpath_type_string, args[0], args[1]);
+ else if (name == PUGIXML_TEXT("true") && argc == 0)
+ return new (alloc_node()) xpath_ast_node(ast_func_true, xpath_type_boolean);
+
+ break;
+
+ default:
+ break;
+ }
+
+ throw_error("Unrecognized function or wrong parameter count");
+
+ return 0;
+ }
+
+ axis_t parse_axis_name(const xpath_lexer_string& name, bool& specified)
+ {
+ specified = true;
+
+ switch (name.begin[0])
+ {
+ case 'a':
+ if (name == PUGIXML_TEXT("ancestor"))
+ return axis_ancestor;
+ else if (name == PUGIXML_TEXT("ancestor-or-self"))
+ return axis_ancestor_or_self;
+ else if (name == PUGIXML_TEXT("attribute"))
+ return axis_attribute;
+
+ break;
+
+ case 'c':
+ if (name == PUGIXML_TEXT("child"))
+ return axis_child;
+
+ break;
+
+ case 'd':
+ if (name == PUGIXML_TEXT("descendant"))
+ return axis_descendant;
+ else if (name == PUGIXML_TEXT("descendant-or-self"))
+ return axis_descendant_or_self;
+
+ break;
+
+ case 'f':
+ if (name == PUGIXML_TEXT("following"))
+ return axis_following;
+ else if (name == PUGIXML_TEXT("following-sibling"))
+ return axis_following_sibling;
+
+ break;
+
+ case 'n':
+ if (name == PUGIXML_TEXT("namespace"))
+ return axis_namespace;
+
+ break;
+
+ case 'p':
+ if (name == PUGIXML_TEXT("parent"))
+ return axis_parent;
+ else if (name == PUGIXML_TEXT("preceding"))
+ return axis_preceding;
+ else if (name == PUGIXML_TEXT("preceding-sibling"))
+ return axis_preceding_sibling;
+
+ break;
+
+ case 's':
+ if (name == PUGIXML_TEXT("self"))
+ return axis_self;
+
+ break;
+
+ default:
+ break;
+ }
+
+ specified = false;
+ return axis_child;
+ }
+
+ nodetest_t parse_node_test_type(const xpath_lexer_string& name)
+ {
+ switch (name.begin[0])
+ {
+ case 'c':
+ if (name == PUGIXML_TEXT("comment"))
+ return nodetest_type_comment;
+
+ break;
+
+ case 'n':
+ if (name == PUGIXML_TEXT("node"))
+ return nodetest_type_node;
+
+ break;
+
+ case 'p':
+ if (name == PUGIXML_TEXT("processing-instruction"))
+ return nodetest_type_pi;
+
+ break;
+
+ case 't':
+ if (name == PUGIXML_TEXT("text"))
+ return nodetest_type_text;
+
+ break;
+
+ default:
+ break;
+ }
+
+ return nodetest_none;
+ }
+
+ // PrimaryExpr ::= VariableReference | '(' Expr ')' | Literal | Number | FunctionCall
+ xpath_ast_node* parse_primary_expression()
+ {
+ switch (_lexer.current())
+ {
+ case lex_var_ref:
+ {
+ xpath_lexer_string name = _lexer.contents();
+
+ if (!_variables)
+ throw_error("Unknown variable: variable set is not provided");
+
+ xpath_variable* var = get_variable_scratch(_scratch, _variables, name.begin, name.end);
+
+ if (!var)
+ throw_error("Unknown variable: variable set does not contain the given name");
+
+ _lexer.next();
+
+ return new (alloc_node()) xpath_ast_node(ast_variable, var->type(), var);
+ }
+
+ case lex_open_brace:
+ {
+ _lexer.next();
+
+ xpath_ast_node* n = parse_expression();
+
+ if (_lexer.current() != lex_close_brace)
+ throw_error("Unmatched braces");
+
+ _lexer.next();
+
+ return n;
+ }
+
+ case lex_quoted_string:
+ {
+ const char_t* value = alloc_string(_lexer.contents());
+
+ xpath_ast_node* n = new (alloc_node()) xpath_ast_node(ast_string_constant, xpath_type_string, value);
+ _lexer.next();
+
+ return n;
+ }
+
+ case lex_number:
+ {
+ double value = 0;
+
+ if (!convert_string_to_number_scratch(_scratch, _lexer.contents().begin, _lexer.contents().end, &value))
+ throw_error_oom();
+
+ xpath_ast_node* n = new (alloc_node()) xpath_ast_node(ast_number_constant, xpath_type_number, value);
+ _lexer.next();
+
+ return n;
+ }
+
+ case lex_string:
+ {
+ xpath_ast_node* args[2] = {0};
+ size_t argc = 0;
+
+ xpath_lexer_string function = _lexer.contents();
+ _lexer.next();
+
+ xpath_ast_node* last_arg = 0;
+
+ if (_lexer.current() != lex_open_brace)
+ throw_error("Unrecognized function call");
+ _lexer.next();
+
+ if (_lexer.current() != lex_close_brace)
+ args[argc++] = parse_expression();
+
+ while (_lexer.current() != lex_close_brace)
+ {
+ if (_lexer.current() != lex_comma)
+ throw_error("No comma between function arguments");
+ _lexer.next();
+
+ xpath_ast_node* n = parse_expression();
+
+ if (argc < 2) args[argc] = n;
+ else last_arg->set_next(n);
+
+ argc++;
+ last_arg = n;
+ }
+
+ _lexer.next();
+
+ return parse_function(function, argc, args);
+ }
+
+ default:
+ throw_error("Unrecognizable primary expression");
+
+ return 0;
+ }
+ }
+
+ // FilterExpr ::= PrimaryExpr | FilterExpr Predicate
+ // Predicate ::= '[' PredicateExpr ']'
+ // PredicateExpr ::= Expr
+ xpath_ast_node* parse_filter_expression()
+ {
+ xpath_ast_node* n = parse_primary_expression();
+
+ while (_lexer.current() == lex_open_square_brace)
+ {
+ _lexer.next();
+
+ xpath_ast_node* expr = parse_expression();
+
+ if (n->rettype() != xpath_type_node_set) throw_error("Predicate has to be applied to node set");
+
+ bool posinv = expr->rettype() != xpath_type_number && expr->is_posinv();
+
+ n = new (alloc_node()) xpath_ast_node(posinv ? ast_filter_posinv : ast_filter, xpath_type_node_set, n, expr);
+
+ if (_lexer.current() != lex_close_square_brace)
+ throw_error("Unmatched square brace");
+
+ _lexer.next();
+ }
+
+ return n;
+ }
+
+ // Step ::= AxisSpecifier NodeTest Predicate* | AbbreviatedStep
+ // AxisSpecifier ::= AxisName '::' | '@'?
+ // NodeTest ::= NameTest | NodeType '(' ')' | 'processing-instruction' '(' Literal ')'
+ // NameTest ::= '*' | NCName ':' '*' | QName
+ // AbbreviatedStep ::= '.' | '..'
+ xpath_ast_node* parse_step(xpath_ast_node* set)
+ {
+ if (set && set->rettype() != xpath_type_node_set)
+ throw_error("Step has to be applied to node set");
+
+ bool axis_specified = false;
+ axis_t axis = axis_child; // implied child axis
+
+ if (_lexer.current() == lex_axis_attribute)
+ {
+ axis = axis_attribute;
+ axis_specified = true;
+
+ _lexer.next();
+ }
+ else if (_lexer.current() == lex_dot)
+ {
+ _lexer.next();
+
+ return new (alloc_node()) xpath_ast_node(ast_step, set, axis_self, nodetest_type_node, 0);
+ }
+ else if (_lexer.current() == lex_double_dot)
+ {
+ _lexer.next();
+
+ return new (alloc_node()) xpath_ast_node(ast_step, set, axis_parent, nodetest_type_node, 0);
+ }
+
+ nodetest_t nt_type = nodetest_none;
+ xpath_lexer_string nt_name;
+
+ if (_lexer.current() == lex_string)
+ {
+ // node name test
+ nt_name = _lexer.contents();
+ _lexer.next();
+
+ // was it an axis name?
+ if (_lexer.current() == lex_double_colon)
+ {
+ // parse axis name
+ if (axis_specified) throw_error("Two axis specifiers in one step");
+
+ axis = parse_axis_name(nt_name, axis_specified);
+
+ if (!axis_specified) throw_error("Unknown axis");
+
+ // read actual node test
+ _lexer.next();
+
+ if (_lexer.current() == lex_multiply)
+ {
+ nt_type = nodetest_all;
+ nt_name = xpath_lexer_string();
+ _lexer.next();
+ }
+ else if (_lexer.current() == lex_string)
+ {
+ nt_name = _lexer.contents();
+ _lexer.next();
+ }
+ else throw_error("Unrecognized node test");
+ }
+
+ if (nt_type == nodetest_none)
+ {
+ // node type test or processing-instruction
+ if (_lexer.current() == lex_open_brace)
+ {
+ _lexer.next();
+
+ if (_lexer.current() == lex_close_brace)
+ {
+ _lexer.next();
+
+ nt_type = parse_node_test_type(nt_name);
+
+ if (nt_type == nodetest_none) throw_error("Unrecognized node type");
+
+ nt_name = xpath_lexer_string();
+ }
+ else if (nt_name == PUGIXML_TEXT("processing-instruction"))
+ {
+ if (_lexer.current() != lex_quoted_string)
+ throw_error("Only literals are allowed as arguments to processing-instruction()");
+
+ nt_type = nodetest_pi;
+ nt_name = _lexer.contents();
+ _lexer.next();
+
+ if (_lexer.current() != lex_close_brace)
+ throw_error("Unmatched brace near processing-instruction()");
+ _lexer.next();
+ }
+ else
+ throw_error("Unmatched brace near node type test");
+
+ }
+ // QName or NCName:*
+ else
+ {
+ if (nt_name.end - nt_name.begin > 2 && nt_name.end[-2] == ':' && nt_name.end[-1] == '*') // NCName:*
+ {
+ nt_name.end--; // erase *
+
+ nt_type = nodetest_all_in_namespace;
+ }
+ else nt_type = nodetest_name;
+ }
+ }
+ }
+ else if (_lexer.current() == lex_multiply)
+ {
+ nt_type = nodetest_all;
+ _lexer.next();
+ }
+ else throw_error("Unrecognized node test");
+
+ xpath_ast_node* n = new (alloc_node()) xpath_ast_node(ast_step, set, axis, nt_type, alloc_string(nt_name));
+
+ xpath_ast_node* last = 0;
+
+ while (_lexer.current() == lex_open_square_brace)
+ {
+ _lexer.next();
+
+ xpath_ast_node* expr = parse_expression();
+
+ xpath_ast_node* pred = new (alloc_node()) xpath_ast_node(ast_predicate, xpath_type_node_set, expr);
+
+ if (_lexer.current() != lex_close_square_brace)
+ throw_error("Unmatched square brace");
+ _lexer.next();
+
+ if (last) last->set_next(pred);
+ else n->set_right(pred);
+
+ last = pred;
+ }
+
+ return n;
+ }
+
+ // RelativeLocationPath ::= Step | RelativeLocationPath '/' Step | RelativeLocationPath '//' Step
+ xpath_ast_node* parse_relative_location_path(xpath_ast_node* set)
+ {
+ xpath_ast_node* n = parse_step(set);
+
+ while (_lexer.current() == lex_slash || _lexer.current() == lex_double_slash)
+ {
+ lexeme_t l = _lexer.current();
+ _lexer.next();
+
+ if (l == lex_double_slash)
+ n = new (alloc_node()) xpath_ast_node(ast_step, n, axis_descendant_or_self, nodetest_type_node, 0);
+
+ n = parse_step(n);
+ }
+
+ return n;
+ }
+
+ // LocationPath ::= RelativeLocationPath | AbsoluteLocationPath
+ // AbsoluteLocationPath ::= '/' RelativeLocationPath? | '//' RelativeLocationPath
+ xpath_ast_node* parse_location_path()
+ {
+ if (_lexer.current() == lex_slash)
+ {
+ _lexer.next();
+
+ xpath_ast_node* n = new (alloc_node()) xpath_ast_node(ast_step_root, xpath_type_node_set);
+
+ // relative location path can start from axis_attribute, dot, double_dot, multiply and string lexemes; any other lexeme means standalone root path
+ lexeme_t l = _lexer.current();
+
+ if (l == lex_string || l == lex_axis_attribute || l == lex_dot || l == lex_double_dot || l == lex_multiply)
+ return parse_relative_location_path(n);
+ else
+ return n;
+ }
+ else if (_lexer.current() == lex_double_slash)
+ {
+ _lexer.next();
+
+ xpath_ast_node* n = new (alloc_node()) xpath_ast_node(ast_step_root, xpath_type_node_set);
+ n = new (alloc_node()) xpath_ast_node(ast_step, n, axis_descendant_or_self, nodetest_type_node, 0);
+
+ return parse_relative_location_path(n);
+ }
+
+ // else clause moved outside of if because of bogus warning 'control may reach end of non-void function being inlined' in gcc 4.0.1
+ return parse_relative_location_path(0);
+ }
+
+ // PathExpr ::= LocationPath
+ // | FilterExpr
+ // | FilterExpr '/' RelativeLocationPath
+ // | FilterExpr '//' RelativeLocationPath
+ // UnionExpr ::= PathExpr | UnionExpr '|' PathExpr
+ // UnaryExpr ::= UnionExpr | '-' UnaryExpr
+ xpath_ast_node* parse_path_or_unary_expression()
+ {
+ // Clarification.
+ // PathExpr begins with either LocationPath or FilterExpr.
+ // FilterExpr begins with PrimaryExpr
+ // PrimaryExpr begins with '$' in case of it being a variable reference,
+ // '(' in case of it being an expression, string literal, number constant or
+ // function call.
+
+ if (_lexer.current() == lex_var_ref || _lexer.current() == lex_open_brace ||
+ _lexer.current() == lex_quoted_string || _lexer.current() == lex_number ||
+ _lexer.current() == lex_string)
+ {
+ if (_lexer.current() == lex_string)
+ {
+ // This is either a function call, or not - if not, we shall proceed with location path
+ const char_t* state = _lexer.state();
+
+ while (PUGI__IS_CHARTYPE(*state, ct_space)) ++state;
+
+ if (*state != '(') return parse_location_path();
+
+ // This looks like a function call; however this still can be a node-test. Check it.
+ if (parse_node_test_type(_lexer.contents()) != nodetest_none) return parse_location_path();
+ }
+
+ xpath_ast_node* n = parse_filter_expression();
+
+ if (_lexer.current() == lex_slash || _lexer.current() == lex_double_slash)
+ {
+ lexeme_t l = _lexer.current();
+ _lexer.next();
+
+ if (l == lex_double_slash)
+ {
+ if (n->rettype() != xpath_type_node_set) throw_error("Step has to be applied to node set");
+
+ n = new (alloc_node()) xpath_ast_node(ast_step, n, axis_descendant_or_self, nodetest_type_node, 0);
+ }
+
+ // select from location path
+ return parse_relative_location_path(n);
+ }
+
+ return n;
+ }
+ else if (_lexer.current() == lex_minus)
+ {
+ _lexer.next();
+
+ // precedence 7+ - only parses union expressions
+ xpath_ast_node* expr = parse_expression_rec(parse_path_or_unary_expression(), 7);
+
+ return new (alloc_node()) xpath_ast_node(ast_op_negate, xpath_type_number, expr);
+ }
+ else
+ return parse_location_path();
+ }
+
+ struct binary_op_t
+ {
+ ast_type_t asttype;
+ xpath_value_type rettype;
+ int precedence;
+
+ binary_op_t(): asttype(ast_unknown), rettype(xpath_type_none), precedence(0)
+ {
+ }
+
+ binary_op_t(ast_type_t asttype_, xpath_value_type rettype_, int precedence_): asttype(asttype_), rettype(rettype_), precedence(precedence_)
+ {
+ }
+
+ static binary_op_t parse(xpath_lexer& lexer)
+ {
+ switch (lexer.current())
+ {
+ case lex_string:
+ if (lexer.contents() == PUGIXML_TEXT("or"))
+ return binary_op_t(ast_op_or, xpath_type_boolean, 1);
+ else if (lexer.contents() == PUGIXML_TEXT("and"))
+ return binary_op_t(ast_op_and, xpath_type_boolean, 2);
+ else if (lexer.contents() == PUGIXML_TEXT("div"))
+ return binary_op_t(ast_op_divide, xpath_type_number, 6);
+ else if (lexer.contents() == PUGIXML_TEXT("mod"))
+ return binary_op_t(ast_op_mod, xpath_type_number, 6);
+ else
+ return binary_op_t();
+
+ case lex_equal:
+ return binary_op_t(ast_op_equal, xpath_type_boolean, 3);
+
+ case lex_not_equal:
+ return binary_op_t(ast_op_not_equal, xpath_type_boolean, 3);
+
+ case lex_less:
+ return binary_op_t(ast_op_less, xpath_type_boolean, 4);
+
+ case lex_greater:
+ return binary_op_t(ast_op_greater, xpath_type_boolean, 4);
+
+ case lex_less_or_equal:
+ return binary_op_t(ast_op_less_or_equal, xpath_type_boolean, 4);
+
+ case lex_greater_or_equal:
+ return binary_op_t(ast_op_greater_or_equal, xpath_type_boolean, 4);
+
+ case lex_plus:
+ return binary_op_t(ast_op_add, xpath_type_number, 5);
+
+ case lex_minus:
+ return binary_op_t(ast_op_subtract, xpath_type_number, 5);
+
+ case lex_multiply:
+ return binary_op_t(ast_op_multiply, xpath_type_number, 6);
+
+ case lex_union:
+ return binary_op_t(ast_op_union, xpath_type_node_set, 7);
+
+ default:
+ return binary_op_t();
+ }
+ }
+ };
+
+ xpath_ast_node* parse_expression_rec(xpath_ast_node* lhs, int limit)
+ {
+ binary_op_t op = binary_op_t::parse(_lexer);
+
+ while (op.asttype != ast_unknown && op.precedence >= limit)
+ {
+ _lexer.next();
+
+ xpath_ast_node* rhs = parse_path_or_unary_expression();
+
+ binary_op_t nextop = binary_op_t::parse(_lexer);
+
+ while (nextop.asttype != ast_unknown && nextop.precedence > op.precedence)
+ {
+ rhs = parse_expression_rec(rhs, nextop.precedence);
+
+ nextop = binary_op_t::parse(_lexer);
+ }
+
+ if (op.asttype == ast_op_union && (lhs->rettype() != xpath_type_node_set || rhs->rettype() != xpath_type_node_set))
+ throw_error("Union operator has to be applied to node sets");
+
+ lhs = new (alloc_node()) xpath_ast_node(op.asttype, op.rettype, lhs, rhs);
+
+ op = binary_op_t::parse(_lexer);
+ }
+
+ return lhs;
+ }
+
+ // Expr ::= OrExpr
+ // OrExpr ::= AndExpr | OrExpr 'or' AndExpr
+ // AndExpr ::= EqualityExpr | AndExpr 'and' EqualityExpr
+ // EqualityExpr ::= RelationalExpr
+ // | EqualityExpr '=' RelationalExpr
+ // | EqualityExpr '!=' RelationalExpr
+ // RelationalExpr ::= AdditiveExpr
+ // | RelationalExpr '<' AdditiveExpr
+ // | RelationalExpr '>' AdditiveExpr
+ // | RelationalExpr '<=' AdditiveExpr
+ // | RelationalExpr '>=' AdditiveExpr
+ // AdditiveExpr ::= MultiplicativeExpr
+ // | AdditiveExpr '+' MultiplicativeExpr
+ // | AdditiveExpr '-' MultiplicativeExpr
+ // MultiplicativeExpr ::= UnaryExpr
+ // | MultiplicativeExpr '*' UnaryExpr
+ // | MultiplicativeExpr 'div' UnaryExpr
+ // | MultiplicativeExpr 'mod' UnaryExpr
+ xpath_ast_node* parse_expression()
+ {
+ return parse_expression_rec(parse_path_or_unary_expression(), 0);
+ }
+
+ xpath_parser(const char_t* query, xpath_variable_set* variables, xpath_allocator* alloc, xpath_parse_result* result): _alloc(alloc), _lexer(query), _query(query), _variables(variables), _result(result)
+ {
+ }
+
+ xpath_ast_node* parse()
+ {
+ xpath_ast_node* result = parse_expression();
+
+ if (_lexer.current() != lex_eof)
+ {
+ // there are still unparsed tokens left, error
+ throw_error("Incorrect query");
+ }
+
+ return result;
+ }
+
+ static xpath_ast_node* parse(const char_t* query, xpath_variable_set* variables, xpath_allocator* alloc, xpath_parse_result* result)
+ {
+ xpath_parser parser(query, variables, alloc, result);
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ int error = setjmp(parser._error_handler);
+
+ return (error == 0) ? parser.parse() : 0;
+ #else
+ return parser.parse();
+ #endif
+ }
+ };
+
+ struct xpath_query_impl
+ {
+ static xpath_query_impl* create()
+ {
+ void* memory = xml_memory::allocate(sizeof(xpath_query_impl));
+
+ return new (memory) xpath_query_impl();
+ }
+
+ static void destroy(void* ptr)
+ {
+ if (!ptr) return;
+
+ // free all allocated pages
+ static_cast<xpath_query_impl*>(ptr)->alloc.release();
+
+ // free allocator memory (with the first page)
+ xml_memory::deallocate(ptr);
+ }
+
+ xpath_query_impl(): root(0), alloc(&block)
+ {
+ block.next = 0;
+ }
+
+ xpath_ast_node* root;
+ xpath_allocator alloc;
+ xpath_memory_block block;
+ };
+
+ PUGI__FN xpath_string evaluate_string_impl(xpath_query_impl* impl, const xpath_node& n, xpath_stack_data& sd)
+ {
+ if (!impl) return xpath_string();
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ if (setjmp(sd.error_handler)) return xpath_string();
+ #endif
+
+ xpath_context c(n, 1, 1);
+
+ return impl->root->eval_string(c, sd.stack);
+ }
+PUGI__NS_END
+
+namespace pugi
+{
+#ifndef PUGIXML_NO_EXCEPTIONS
+ PUGI__FN xpath_exception::xpath_exception(const xpath_parse_result& result_): _result(result_)
+ {
+ assert(_result.error);
+ }
+
+ PUGI__FN const char* xpath_exception::what() const throw()
+ {
+ return _result.error;
+ }
+
+ PUGI__FN const xpath_parse_result& xpath_exception::result() const
+ {
+ return _result;
+ }
+#endif
+
+ PUGI__FN xpath_node::xpath_node()
+ {
+ }
+
+ PUGI__FN xpath_node::xpath_node(const xml_node& node_): _node(node_)
+ {
+ }
+
+ PUGI__FN xpath_node::xpath_node(const xml_attribute& attribute_, const xml_node& parent_): _node(attribute_ ? parent_ : xml_node()), _attribute(attribute_)
+ {
+ }
+
+ PUGI__FN xml_node xpath_node::node() const
+ {
+ return _attribute ? xml_node() : _node;
+ }
+
+ PUGI__FN xml_attribute xpath_node::attribute() const
+ {
+ return _attribute;
+ }
+
+ PUGI__FN xml_node xpath_node::parent() const
+ {
+ return _attribute ? _node : _node.parent();
+ }
+
+ PUGI__FN static void unspecified_bool_xpath_node(xpath_node***)
+ {
+ }
+
+ PUGI__FN xpath_node::operator xpath_node::unspecified_bool_type() const
+ {
+ return (_node || _attribute) ? unspecified_bool_xpath_node : 0;
+ }
+
+ PUGI__FN bool xpath_node::operator!() const
+ {
+ return !(_node || _attribute);
+ }
+
+ PUGI__FN bool xpath_node::operator==(const xpath_node& n) const
+ {
+ return _node == n._node && _attribute == n._attribute;
+ }
+
+ PUGI__FN bool xpath_node::operator!=(const xpath_node& n) const
+ {
+ return _node != n._node || _attribute != n._attribute;
+ }
+
+#ifdef __BORLANDC__
+ PUGI__FN bool operator&&(const xpath_node& lhs, bool rhs)
+ {
+ return (bool)lhs && rhs;
+ }
+
+ PUGI__FN bool operator||(const xpath_node& lhs, bool rhs)
+ {
+ return (bool)lhs || rhs;
+ }
+#endif
+
+ PUGI__FN void xpath_node_set::_assign(const_iterator begin_, const_iterator end_)
+ {
+ assert(begin_ <= end_);
+
+ size_t size_ = static_cast<size_t>(end_ - begin_);
+
+ if (size_ <= 1)
+ {
+ // deallocate old buffer
+ if (_begin != &_storage) impl::xml_memory::deallocate(_begin);
+
+ // use internal buffer
+ if (begin_ != end_) _storage = *begin_;
+
+ _begin = &_storage;
+ _end = &_storage + size_;
+ }
+ else
+ {
+ // make heap copy
+ xpath_node* storage = static_cast<xpath_node*>(impl::xml_memory::allocate(size_ * sizeof(xpath_node)));
+
+ if (!storage)
+ {
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ return;
+ #else
+ throw std::bad_alloc();
+ #endif
+ }
+
+ memcpy(storage, begin_, size_ * sizeof(xpath_node));
+
+ // deallocate old buffer
+ if (_begin != &_storage) impl::xml_memory::deallocate(_begin);
+
+ // finalize
+ _begin = storage;
+ _end = storage + size_;
+ }
+ }
+
+ PUGI__FN xpath_node_set::xpath_node_set(): _type(type_unsorted), _begin(&_storage), _end(&_storage)
+ {
+ }
+
+ PUGI__FN xpath_node_set::xpath_node_set(const_iterator begin_, const_iterator end_, type_t type_): _type(type_), _begin(&_storage), _end(&_storage)
+ {
+ _assign(begin_, end_);
+ }
+
+ PUGI__FN xpath_node_set::~xpath_node_set()
+ {
+ if (_begin != &_storage) impl::xml_memory::deallocate(_begin);
+ }
+
+ PUGI__FN xpath_node_set::xpath_node_set(const xpath_node_set& ns): _type(ns._type), _begin(&_storage), _end(&_storage)
+ {
+ _assign(ns._begin, ns._end);
+ }
+
+ PUGI__FN xpath_node_set& xpath_node_set::operator=(const xpath_node_set& ns)
+ {
+ if (this == &ns) return *this;
+
+ _type = ns._type;
+ _assign(ns._begin, ns._end);
+
+ return *this;
+ }
+
+ PUGI__FN xpath_node_set::type_t xpath_node_set::type() const
+ {
+ return _type;
+ }
+
+ PUGI__FN size_t xpath_node_set::size() const
+ {
+ return _end - _begin;
+ }
+
+ PUGI__FN bool xpath_node_set::empty() const
+ {
+ return _begin == _end;
+ }
+
+ PUGI__FN const xpath_node& xpath_node_set::operator[](size_t index) const
+ {
+ assert(index < size());
+ return _begin[index];
+ }
+
+ PUGI__FN xpath_node_set::const_iterator xpath_node_set::begin() const
+ {
+ return _begin;
+ }
+
+ PUGI__FN xpath_node_set::const_iterator xpath_node_set::end() const
+ {
+ return _end;
+ }
+
+ PUGI__FN void xpath_node_set::sort(bool reverse)
+ {
+ _type = impl::xpath_sort(_begin, _end, _type, reverse);
+ }
+
+ PUGI__FN xpath_node xpath_node_set::first() const
+ {
+ return impl::xpath_first(_begin, _end, _type);
+ }
+
+ PUGI__FN xpath_parse_result::xpath_parse_result(): error("Internal error"), offset(0)
+ {
+ }
+
+ PUGI__FN xpath_parse_result::operator bool() const
+ {
+ return error == 0;
+ }
+
+ PUGI__FN const char* xpath_parse_result::description() const
+ {
+ return error ? error : "No error";
+ }
+
+ PUGI__FN xpath_variable::xpath_variable(): _type(xpath_type_none), _next(0)
+ {
+ }
+
+ PUGI__FN const char_t* xpath_variable::name() const
+ {
+ switch (_type)
+ {
+ case xpath_type_node_set:
+ return static_cast<const impl::xpath_variable_node_set*>(this)->name;
+
+ case xpath_type_number:
+ return static_cast<const impl::xpath_variable_number*>(this)->name;
+
+ case xpath_type_string:
+ return static_cast<const impl::xpath_variable_string*>(this)->name;
+
+ case xpath_type_boolean:
+ return static_cast<const impl::xpath_variable_boolean*>(this)->name;
+
+ default:
+ assert(!"Invalid variable type");
+ return 0;
+ }
+ }
+
+ PUGI__FN xpath_value_type xpath_variable::type() const
+ {
+ return _type;
+ }
+
+ PUGI__FN bool xpath_variable::get_boolean() const
+ {
+ return (_type == xpath_type_boolean) ? static_cast<const impl::xpath_variable_boolean*>(this)->value : false;
+ }
+
+ PUGI__FN double xpath_variable::get_number() const
+ {
+ return (_type == xpath_type_number) ? static_cast<const impl::xpath_variable_number*>(this)->value : impl::gen_nan();
+ }
+
+ PUGI__FN const char_t* xpath_variable::get_string() const
+ {
+ const char_t* value = (_type == xpath_type_string) ? static_cast<const impl::xpath_variable_string*>(this)->value : 0;
+ return value ? value : PUGIXML_TEXT("");
+ }
+
+ PUGI__FN const xpath_node_set& xpath_variable::get_node_set() const
+ {
+ return (_type == xpath_type_node_set) ? static_cast<const impl::xpath_variable_node_set*>(this)->value : impl::dummy_node_set;
+ }
+
+ PUGI__FN bool xpath_variable::set(bool value)
+ {
+ if (_type != xpath_type_boolean) return false;
+
+ static_cast<impl::xpath_variable_boolean*>(this)->value = value;
+ return true;
+ }
+
+ PUGI__FN bool xpath_variable::set(double value)
+ {
+ if (_type != xpath_type_number) return false;
+
+ static_cast<impl::xpath_variable_number*>(this)->value = value;
+ return true;
+ }
+
+ PUGI__FN bool xpath_variable::set(const char_t* value)
+ {
+ if (_type != xpath_type_string) return false;
+
+ impl::xpath_variable_string* var = static_cast<impl::xpath_variable_string*>(this);
+
+ // duplicate string
+ size_t size = (impl::strlength(value) + 1) * sizeof(char_t);
+
+ char_t* copy = static_cast<char_t*>(impl::xml_memory::allocate(size));
+ if (!copy) return false;
+
+ memcpy(copy, value, size);
+
+ // replace old string
+ if (var->value) impl::xml_memory::deallocate(var->value);
+ var->value = copy;
+
+ return true;
+ }
+
+ PUGI__FN bool xpath_variable::set(const xpath_node_set& value)
+ {
+ if (_type != xpath_type_node_set) return false;
+
+ static_cast<impl::xpath_variable_node_set*>(this)->value = value;
+ return true;
+ }
+
+ PUGI__FN xpath_variable_set::xpath_variable_set()
+ {
+ for (size_t i = 0; i < sizeof(_data) / sizeof(_data[0]); ++i) _data[i] = 0;
+ }
+
+ PUGI__FN xpath_variable_set::~xpath_variable_set()
+ {
+ for (size_t i = 0; i < sizeof(_data) / sizeof(_data[0]); ++i)
+ {
+ xpath_variable* var = _data[i];
+
+ while (var)
+ {
+ xpath_variable* next = var->_next;
+
+ impl::delete_xpath_variable(var->_type, var);
+
+ var = next;
+ }
+ }
+ }
+
+ PUGI__FN xpath_variable* xpath_variable_set::find(const char_t* name) const
+ {
+ const size_t hash_size = sizeof(_data) / sizeof(_data[0]);
+ size_t hash = impl::hash_string(name) % hash_size;
+
+ // look for existing variable
+ for (xpath_variable* var = _data[hash]; var; var = var->_next)
+ if (impl::strequal(var->name(), name))
+ return var;
+
+ return 0;
+ }
+
+ PUGI__FN xpath_variable* xpath_variable_set::add(const char_t* name, xpath_value_type type)
+ {
+ const size_t hash_size = sizeof(_data) / sizeof(_data[0]);
+ size_t hash = impl::hash_string(name) % hash_size;
+
+ // look for existing variable
+ for (xpath_variable* var = _data[hash]; var; var = var->_next)
+ if (impl::strequal(var->name(), name))
+ return var->type() == type ? var : 0;
+
+ // add new variable
+ xpath_variable* result = impl::new_xpath_variable(type, name);
+
+ if (result)
+ {
+ result->_type = type;
+ result->_next = _data[hash];
+
+ _data[hash] = result;
+ }
+
+ return result;
+ }
+
+ PUGI__FN bool xpath_variable_set::set(const char_t* name, bool value)
+ {
+ xpath_variable* var = add(name, xpath_type_boolean);
+ return var ? var->set(value) : false;
+ }
+
+ PUGI__FN bool xpath_variable_set::set(const char_t* name, double value)
+ {
+ xpath_variable* var = add(name, xpath_type_number);
+ return var ? var->set(value) : false;
+ }
+
+ PUGI__FN bool xpath_variable_set::set(const char_t* name, const char_t* value)
+ {
+ xpath_variable* var = add(name, xpath_type_string);
+ return var ? var->set(value) : false;
+ }
+
+ PUGI__FN bool xpath_variable_set::set(const char_t* name, const xpath_node_set& value)
+ {
+ xpath_variable* var = add(name, xpath_type_node_set);
+ return var ? var->set(value) : false;
+ }
+
+ PUGI__FN xpath_variable* xpath_variable_set::get(const char_t* name)
+ {
+ return find(name);
+ }
+
+ PUGI__FN const xpath_variable* xpath_variable_set::get(const char_t* name) const
+ {
+ return find(name);
+ }
+
+ PUGI__FN xpath_query::xpath_query(const char_t* query, xpath_variable_set* variables): _impl(0)
+ {
+ impl::xpath_query_impl* qimpl = impl::xpath_query_impl::create();
+
+ if (!qimpl)
+ {
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ _result.error = "Out of memory";
+ #else
+ throw std::bad_alloc();
+ #endif
+ }
+ else
+ {
+ impl::buffer_holder impl_holder(qimpl, impl::xpath_query_impl::destroy);
+
+ qimpl->root = impl::xpath_parser::parse(query, variables, &qimpl->alloc, &_result);
+
+ if (qimpl->root)
+ {
+ _impl = static_cast<impl::xpath_query_impl*>(impl_holder.release());
+ _result.error = 0;
+ }
+ }
+ }
+
+ PUGI__FN xpath_query::~xpath_query()
+ {
+ impl::xpath_query_impl::destroy(_impl);
+ }
+
+ PUGI__FN xpath_value_type xpath_query::return_type() const
+ {
+ if (!_impl) return xpath_type_none;
+
+ return static_cast<impl::xpath_query_impl*>(_impl)->root->rettype();
+ }
+
+ PUGI__FN bool xpath_query::evaluate_boolean(const xpath_node& n) const
+ {
+ if (!_impl) return false;
+
+ impl::xpath_context c(n, 1, 1);
+ impl::xpath_stack_data sd;
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ if (setjmp(sd.error_handler)) return false;
+ #endif
+
+ return static_cast<impl::xpath_query_impl*>(_impl)->root->eval_boolean(c, sd.stack);
+ }
+
+ PUGI__FN double xpath_query::evaluate_number(const xpath_node& n) const
+ {
+ if (!_impl) return impl::gen_nan();
+
+ impl::xpath_context c(n, 1, 1);
+ impl::xpath_stack_data sd;
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ if (setjmp(sd.error_handler)) return impl::gen_nan();
+ #endif
+
+ return static_cast<impl::xpath_query_impl*>(_impl)->root->eval_number(c, sd.stack);
+ }
+
+#ifndef PUGIXML_NO_STL
+ PUGI__FN string_t xpath_query::evaluate_string(const xpath_node& n) const
+ {
+ impl::xpath_stack_data sd;
+
+ return impl::evaluate_string_impl(static_cast<impl::xpath_query_impl*>(_impl), n, sd).c_str();
+ }
+#endif
+
+ PUGI__FN size_t xpath_query::evaluate_string(char_t* buffer, size_t capacity, const xpath_node& n) const
+ {
+ impl::xpath_stack_data sd;
+
+ impl::xpath_string r = impl::evaluate_string_impl(static_cast<impl::xpath_query_impl*>(_impl), n, sd);
+
+ size_t full_size = r.length() + 1;
+
+ if (capacity > 0)
+ {
+ size_t size = (full_size < capacity) ? full_size : capacity;
+ assert(size > 0);
+
+ memcpy(buffer, r.c_str(), (size - 1) * sizeof(char_t));
+ buffer[size - 1] = 0;
+ }
+
+ return full_size;
+ }
+
+ PUGI__FN xpath_node_set xpath_query::evaluate_node_set(const xpath_node& n) const
+ {
+ if (!_impl) return xpath_node_set();
+
+ impl::xpath_ast_node* root = static_cast<impl::xpath_query_impl*>(_impl)->root;
+
+ if (root->rettype() != xpath_type_node_set)
+ {
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ return xpath_node_set();
+ #else
+ xpath_parse_result res;
+ res.error = "Expression does not evaluate to node set";
+
+ throw xpath_exception(res);
+ #endif
+ }
+
+ impl::xpath_context c(n, 1, 1);
+ impl::xpath_stack_data sd;
+
+ #ifdef PUGIXML_NO_EXCEPTIONS
+ if (setjmp(sd.error_handler)) return xpath_node_set();
+ #endif
+
+ impl::xpath_node_set_raw r = root->eval_node_set(c, sd.stack);
+
+ return xpath_node_set(r.begin(), r.end(), r.type());
+ }
+
+ PUGI__FN const xpath_parse_result& xpath_query::result() const
+ {
+ return _result;
+ }
+
+ PUGI__FN static void unspecified_bool_xpath_query(xpath_query***)
+ {
+ }
+
+ PUGI__FN xpath_query::operator xpath_query::unspecified_bool_type() const
+ {
+ return _impl ? unspecified_bool_xpath_query : 0;
+ }
+
+ PUGI__FN bool xpath_query::operator!() const
+ {
+ return !_impl;
+ }
+
+ PUGI__FN xpath_node xml_node::select_single_node(const char_t* query, xpath_variable_set* variables) const
+ {
+ xpath_query q(query, variables);
+ return select_single_node(q);
+ }
+
+ PUGI__FN xpath_node xml_node::select_single_node(const xpath_query& query) const
+ {
+ xpath_node_set s = query.evaluate_node_set(*this);
+ return s.empty() ? xpath_node() : s.first();
+ }
+
+ PUGI__FN xpath_node_set xml_node::select_nodes(const char_t* query, xpath_variable_set* variables) const
+ {
+ xpath_query q(query, variables);
+ return select_nodes(q);
+ }
+
+ PUGI__FN xpath_node_set xml_node::select_nodes(const xpath_query& query) const
+ {
+ return query.evaluate_node_set(*this);
+ }
+}
+
+#endif
+
+#ifdef __BORLANDC__
+# pragma option pop
+#endif
+
+// Intel C++ does not properly keep warning state for function templates,
+// so popping warning state at the end of translation unit leads to warnings in the middle.
+#if defined(_MSC_VER) && !defined(__INTEL_COMPILER)
+# pragma warning(pop)
+#endif
+
+// Undefine all local macros (makes sure we're not leaking macros in header-only mode)
+#undef PUGI__NO_INLINE
+#undef PUGI__STATIC_ASSERT
+#undef PUGI__DMC_VOLATILE
+#undef PUGI__MSVC_CRT_VERSION
+#undef PUGI__NS_BEGIN
+#undef PUGI__NS_END
+#undef PUGI__FN
+#undef PUGI__FN_NO_INLINE
+#undef PUGI__IS_CHARTYPE_IMPL
+#undef PUGI__IS_CHARTYPE
+#undef PUGI__IS_CHARTYPEX
+#undef PUGI__SKIPWS
+#undef PUGI__OPTSET
+#undef PUGI__PUSHNODE
+#undef PUGI__POPNODE
+#undef PUGI__SCANFOR
+#undef PUGI__SCANWHILE
+#undef PUGI__ENDSEG
+#undef PUGI__THROW_ERROR
+#undef PUGI__CHECK_ERROR
+
+#endif
+
+/**
+ * Copyright (c) 2006-2014 Arseny Kapoulkine
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
diff --git a/xml/pugixml.hpp b/xml/pugixml.hpp
new file mode 100644
index 0000000..6fb99be
--- /dev/null
+++ b/xml/pugixml.hpp
@@ -0,0 +1,1332 @@
+/**
+ * pugixml parser - version 1.4
+ * --------------------------------------------------------
+ * Copyright (C) 2006-2014, by Arseny Kapoulkine (arseny.kapoulkine at gmail.com)
+ * Report bugs and download new versions at http://pugixml.org/
+ *
+ * This library is distributed under the MIT License. See notice at the end
+ * of this file.
+ *
+ * This work is based on the pugxml parser, which is:
+ * Copyright (C) 2003, by Kristen Wegner (kristen at tima.net)
+ */
+
+#ifndef PUGIXML_VERSION
+// Define version macro; evaluates to major * 100 + minor so that it's safe to use in less-than comparisons
+# define PUGIXML_VERSION 140
+#endif
+
+// Include user configuration file (this can define various configuration macros)
+#include "pugiconfig.hpp"
+
+#ifndef HEADER_PUGIXML_HPP
+#define HEADER_PUGIXML_HPP
+
+// Include stddef.h for size_t and ptrdiff_t
+#include <stddef.h>
+
+// Include exception header for XPath
+#if !defined(PUGIXML_NO_XPATH) && !defined(PUGIXML_NO_EXCEPTIONS)
+# include <exception>
+#endif
+
+// Include STL headers
+#ifndef PUGIXML_NO_STL
+# include <iterator>
+# include <iosfwd>
+# include <string>
+#endif
+
+// Macro for deprecated features
+#ifndef PUGIXML_DEPRECATED
+# if defined(__GNUC__)
+# define PUGIXML_DEPRECATED __attribute__((deprecated))
+# elif defined(_MSC_VER) && _MSC_VER >= 1300
+# define PUGIXML_DEPRECATED __declspec(deprecated)
+# else
+# define PUGIXML_DEPRECATED
+# endif
+#endif
+
+// If no API is defined, assume default
+#ifndef PUGIXML_API
+# define PUGIXML_API
+#endif
+
+// If no API for classes is defined, assume default
+#ifndef PUGIXML_CLASS
+# define PUGIXML_CLASS PUGIXML_API
+#endif
+
+// If no API for functions is defined, assume default
+#ifndef PUGIXML_FUNCTION
+# define PUGIXML_FUNCTION PUGIXML_API
+#endif
+
+// If the platform is known to have long long support, enable long long functions
+#ifndef PUGIXML_HAS_LONG_LONG
+# if defined(__cplusplus) && __cplusplus >= 201103
+# define PUGIXML_HAS_LONG_LONG
+# elif defined(_MSC_VER) && _MSC_VER >= 1400
+# define PUGIXML_HAS_LONG_LONG
+# endif
+#endif
+
+// Character interface macros
+#ifdef PUGIXML_WCHAR_MODE
+# define PUGIXML_TEXT(t) L ## t
+# define PUGIXML_CHAR wchar_t
+#else
+# define PUGIXML_TEXT(t) t
+# define PUGIXML_CHAR char
+#endif
+
+namespace pugi
+{
+ // Character type used for all internal storage and operations; depends on PUGIXML_WCHAR_MODE
+ typedef PUGIXML_CHAR char_t;
+
+#ifndef PUGIXML_NO_STL
+ // String type used for operations that work with STL string; depends on PUGIXML_WCHAR_MODE
+ typedef std::basic_string<PUGIXML_CHAR, std::char_traits<PUGIXML_CHAR>, std::allocator<PUGIXML_CHAR> > string_t;
+#endif
+}
+
+// The PugiXML namespace
+namespace pugi
+{
+ // Tree node types
+ enum xml_node_type
+ {
+ node_null, // Empty (null) node handle
+ node_document, // A document tree's absolute root
+ node_element, // Element tag, i.e. '<node/>'
+ node_pcdata, // Plain character data, i.e. 'text'
+ node_cdata, // Character data, i.e. '<![CDATA[text]]>'
+ node_comment, // Comment tag, i.e. '<!-- text -->'
+ node_pi, // Processing instruction, i.e. '<?name?>'
+ node_declaration, // Document declaration, i.e. '<?xml version="1.0"?>'
+ node_doctype // Document type declaration, i.e. '<!DOCTYPE doc>'
+ };
+
+ // Parsing options
+
+ // Minimal parsing mode (equivalent to turning all other flags off).
+ // Only elements and PCDATA sections are added to the DOM tree, no text conversions are performed.
+ const unsigned int parse_minimal = 0x0000;
+
+ // This flag determines if processing instructions (node_pi) are added to the DOM tree. This flag is off by default.
+ const unsigned int parse_pi = 0x0001;
+
+ // This flag determines if comments (node_comment) are added to the DOM tree. This flag is off by default.
+ const unsigned int parse_comments = 0x0002;
+
+ // This flag determines if CDATA sections (node_cdata) are added to the DOM tree. This flag is on by default.
+ const unsigned int parse_cdata = 0x0004;
+
+ // This flag determines if plain character data (node_pcdata) that consist only of whitespace are added to the DOM tree.
+ // This flag is off by default; turning it on usually results in slower parsing and more memory consumption.
+ const unsigned int parse_ws_pcdata = 0x0008;
+
+ // This flag determines if character and entity references are expanded during parsing. This flag is on by default.
+ const unsigned int parse_escapes = 0x0010;
+
+ // This flag determines if EOL characters are normalized (converted to #xA) during parsing. This flag is on by default.
+ const unsigned int parse_eol = 0x0020;
+
+ // This flag determines if attribute values are normalized using CDATA normalization rules during parsing. This flag is on by default.
+ const unsigned int parse_wconv_attribute = 0x0040;
+
+ // This flag determines if attribute values are normalized using NMTOKENS normalization rules during parsing. This flag is off by default.
+ const unsigned int parse_wnorm_attribute = 0x0080;
+
+ // This flag determines if document declaration (node_declaration) is added to the DOM tree. This flag is off by default.
+ const unsigned int parse_declaration = 0x0100;
+
+ // This flag determines if document type declaration (node_doctype) is added to the DOM tree. This flag is off by default.
+ const unsigned int parse_doctype = 0x0200;
+
+ // This flag determines if plain character data (node_pcdata) that is the only child of the parent node and that consists only
+ // of whitespace is added to the DOM tree.
+ // This flag is off by default; turning it on may result in slower parsing and more memory consumption.
+ const unsigned int parse_ws_pcdata_single = 0x0400;
+
+ // This flag determines if leading and trailing whitespace is to be removed from plain character data. This flag is off by default.
+ const unsigned int parse_trim_pcdata = 0x0800;
+
+ // This flag determines if plain character data that does not have a parent node is added to the DOM tree, and if an empty document
+ // is a valid document. This flag is off by default.
+ const unsigned int parse_fragment = 0x1000;
+
+ // The default parsing mode.
+ // Elements, PCDATA and CDATA sections are added to the DOM tree, character/reference entities are expanded,
+ // End-of-Line characters are normalized, attribute values are normalized using CDATA normalization rules.
+ const unsigned int parse_default = parse_cdata | parse_escapes | parse_wconv_attribute | parse_eol;
+
+ // The full parsing mode.
+ // Nodes of all types are added to the DOM tree, character/reference entities are expanded,
+ // End-of-Line characters are normalized, attribute values are normalized using CDATA normalization rules.
+ const unsigned int parse_full = parse_default | parse_pi | parse_comments | parse_declaration | parse_doctype;
+
+ // These flags determine the encoding of input data for XML document
+ enum xml_encoding
+ {
+ encoding_auto, // Auto-detect input encoding using BOM or < / <? detection; use UTF8 if BOM is not found
+ encoding_utf8, // UTF8 encoding
+ encoding_utf16_le, // Little-endian UTF16
+ encoding_utf16_be, // Big-endian UTF16
+ encoding_utf16, // UTF16 with native endianness
+ encoding_utf32_le, // Little-endian UTF32
+ encoding_utf32_be, // Big-endian UTF32
+ encoding_utf32, // UTF32 with native endianness
+ encoding_wchar, // The same encoding wchar_t has (either UTF16 or UTF32)
+ encoding_latin1
+ };
+
+ // Formatting flags
+
+ // Indent the nodes that are written to output stream with as many indentation strings as deep the node is in DOM tree. This flag is on by default.
+ const unsigned int format_indent = 0x01;
+
+ // Write encoding-specific BOM to the output stream. This flag is off by default.
+ const unsigned int format_write_bom = 0x02;
+
+ // Use raw output mode (no indentation and no line breaks are written). This flag is off by default.
+ const unsigned int format_raw = 0x04;
+
+ // Omit default XML declaration even if there is no declaration in the document. This flag is off by default.
+ const unsigned int format_no_declaration = 0x08;
+
+ // Don't escape attribute values and PCDATA contents. This flag is off by default.
+ const unsigned int format_no_escapes = 0x10;
+
+ // Open file using text mode in xml_document::save_file. This enables special character (i.e. new-line) conversions on some systems. This flag is off by default.
+ const unsigned int format_save_file_text = 0x20;
+
+ // The default set of formatting flags.
+ // Nodes are indented depending on their depth in DOM tree, a default declaration is output if document has none.
+ const unsigned int format_default = format_indent;
+
+ // Forward declarations
+ struct xml_attribute_struct;
+ struct xml_node_struct;
+
+ class xml_node_iterator;
+ class xml_attribute_iterator;
+ class xml_named_node_iterator;
+
+ class xml_tree_walker;
+
+ struct xml_parse_result;
+
+ class xml_node;
+
+ class xml_text;
+
+ #ifndef PUGIXML_NO_XPATH
+ class xpath_node;
+ class xpath_node_set;
+ class xpath_query;
+ class xpath_variable_set;
+ #endif
+
+ // Range-based for loop support
+ template <typename It> class xml_object_range
+ {
+ public:
+ typedef It const_iterator;
+ typedef It iterator;
+
+ xml_object_range(It b, It e): _begin(b), _end(e)
+ {
+ }
+
+ It begin() const { return _begin; }
+ It end() const { return _end; }
+
+ private:
+ It _begin, _end;
+ };
+
+ // Writer interface for node printing (see xml_node::print)
+ class PUGIXML_CLASS xml_writer
+ {
+ public:
+ virtual ~xml_writer() {}
+
+ // Write memory chunk into stream/file/whatever
+ virtual void write(const void* data, size_t size) = 0;
+ };
+
+ // xml_writer implementation for FILE*
+ class PUGIXML_CLASS xml_writer_file: public xml_writer
+ {
+ public:
+ // Construct writer from a FILE* object; void* is used to avoid header dependencies on stdio
+ xml_writer_file(void* file);
+
+ virtual void write(const void* data, size_t size);
+
+ private:
+ void* file;
+ };
+
+ #ifndef PUGIXML_NO_STL
+ // xml_writer implementation for streams
+ class PUGIXML_CLASS xml_writer_stream: public xml_writer
+ {
+ public:
+ // Construct writer from an output stream object
+ xml_writer_stream(std::basic_ostream<char, std::char_traits<char> >& stream);
+ xml_writer_stream(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream);
+
+ virtual void write(const void* data, size_t size);
+
+ private:
+ std::basic_ostream<char, std::char_traits<char> >* narrow_stream;
+ std::basic_ostream<wchar_t, std::char_traits<wchar_t> >* wide_stream;
+ };
+ #endif
+
+ // A light-weight handle for manipulating attributes in DOM tree
+ class PUGIXML_CLASS xml_attribute
+ {
+ friend class xml_attribute_iterator;
+ friend class xml_node;
+
+ private:
+ xml_attribute_struct* _attr;
+
+ typedef void (*unspecified_bool_type)(xml_attribute***);
+
+ public:
+ // Default constructor. Constructs an empty attribute.
+ xml_attribute();
+
+ // Constructs attribute from internal pointer
+ explicit xml_attribute(xml_attribute_struct* attr);
+
+ // Safe bool conversion operator
+ operator unspecified_bool_type() const;
+
+ // Borland C++ workaround
+ bool operator!() const;
+
+ // Comparison operators (compares wrapped attribute pointers)
+ bool operator==(const xml_attribute& r) const;
+ bool operator!=(const xml_attribute& r) const;
+ bool operator<(const xml_attribute& r) const;
+ bool operator>(const xml_attribute& r) const;
+ bool operator<=(const xml_attribute& r) const;
+ bool operator>=(const xml_attribute& r) const;
+
+ // Check if attribute is empty
+ bool empty() const;
+
+ // Get attribute name/value, or "" if attribute is empty
+ const char_t* name() const;
+ const char_t* value() const;
+
+ // Get attribute value, or the default value if attribute is empty
+ const char_t* as_string(const char_t* def = PUGIXML_TEXT("")) const;
+
+ // Get attribute value as a number, or the default value if conversion did not succeed or attribute is empty
+ int as_int(int def = 0) const;
+ unsigned int as_uint(unsigned int def = 0) const;
+ double as_double(double def = 0) const;
+ float as_float(float def = 0) const;
+
+ #ifdef PUGIXML_HAS_LONG_LONG
+ long long as_llong(long long def = 0) const;
+ unsigned long long as_ullong(unsigned long long def = 0) const;
+ #endif
+
+ // Get attribute value as bool (returns true if first character is in '1tTyY' set), or the default value if attribute is empty
+ bool as_bool(bool def = false) const;
+
+ // Set attribute name/value (returns false if attribute is empty or there is not enough memory)
+ bool set_name(const char_t* rhs);
+ bool set_value(const char_t* rhs);
+
+ // Set attribute value with type conversion (numbers are converted to strings, boolean is converted to "true"/"false")
+ bool set_value(int rhs);
+ bool set_value(unsigned int rhs);
+ bool set_value(double rhs);
+ bool set_value(bool rhs);
+
+ #ifdef PUGIXML_HAS_LONG_LONG
+ bool set_value(long long rhs);
+ bool set_value(unsigned long long rhs);
+ #endif
+
+ // Set attribute value (equivalent to set_value without error checking)
+ xml_attribute& operator=(const char_t* rhs);
+ xml_attribute& operator=(int rhs);
+ xml_attribute& operator=(unsigned int rhs);
+ xml_attribute& operator=(double rhs);
+ xml_attribute& operator=(bool rhs);
+
+ #ifdef PUGIXML_HAS_LONG_LONG
+ xml_attribute& operator=(long long rhs);
+ xml_attribute& operator=(unsigned long long rhs);
+ #endif
+
+ // Get next/previous attribute in the attribute list of the parent node
+ xml_attribute next_attribute() const;
+ xml_attribute previous_attribute() const;
+
+ // Get hash value (unique for handles to the same object)
+ size_t hash_value() const;
+
+ // Get internal pointer
+ xml_attribute_struct* internal_object() const;
+ };
+
+#ifdef __BORLANDC__
+ // Borland C++ workaround
+ bool PUGIXML_FUNCTION operator&&(const xml_attribute& lhs, bool rhs);
+ bool PUGIXML_FUNCTION operator||(const xml_attribute& lhs, bool rhs);
+#endif
+
+ // A light-weight handle for manipulating nodes in DOM tree
+ class PUGIXML_CLASS xml_node
+ {
+ friend class xml_attribute_iterator;
+ friend class xml_node_iterator;
+ friend class xml_named_node_iterator;
+
+ protected:
+ xml_node_struct* _root;
+
+ typedef void (*unspecified_bool_type)(xml_node***);
+
+ public:
+ // Default constructor. Constructs an empty node.
+ xml_node();
+
+ // Constructs node from internal pointer
+ explicit xml_node(xml_node_struct* p);
+
+ // Safe bool conversion operator
+ operator unspecified_bool_type() const;
+
+ // Borland C++ workaround
+ bool operator!() const;
+
+ // Comparison operators (compares wrapped node pointers)
+ bool operator==(const xml_node& r) const;
+ bool operator!=(const xml_node& r) const;
+ bool operator<(const xml_node& r) const;
+ bool operator>(const xml_node& r) const;
+ bool operator<=(const xml_node& r) const;
+ bool operator>=(const xml_node& r) const;
+
+ // Check if node is empty.
+ bool empty() const;
+
+ // Get node type
+ xml_node_type type() const;
+
+ // Get node name, or "" if node is empty or it has no name
+ const char_t* name() const;
+
+ // Get node value, or "" if node is empty or it has no value
+ // Note: For <node>text</node> node.value() does not return "text"! Use child_value() or text() methods to access text inside nodes.
+ const char_t* value() const;
+
+ // Get attribute list
+ xml_attribute first_attribute() const;
+ xml_attribute last_attribute() const;
+
+ // Get children list
+ xml_node first_child() const;
+ xml_node last_child() const;
+
+ // Get next/previous sibling in the children list of the parent node
+ xml_node next_sibling() const;
+ xml_node previous_sibling() const;
+
+ // Get parent node
+ xml_node parent() const;
+
+ // Get root of DOM tree this node belongs to
+ xml_node root() const;
+
+ // Get text object for the current node
+ xml_text text() const;
+
+ // Get child, attribute or next/previous sibling with the specified name
+ xml_node child(const char_t* name) const;
+ xml_attribute attribute(const char_t* name) const;
+ xml_node next_sibling(const char_t* name) const;
+ xml_node previous_sibling(const char_t* name) const;
+
+ // Get child value of current node; that is, value of the first child node of type PCDATA/CDATA
+ const char_t* child_value() const;
+
+ // Get child value of child with specified name. Equivalent to child(name).child_value().
+ const char_t* child_value(const char_t* name) const;
+
+ // Set node name/value (returns false if node is empty, there is not enough memory, or node can not have name/value)
+ bool set_name(const char_t* rhs);
+ bool set_value(const char_t* rhs);
+
+ // Add attribute with specified name. Returns added attribute, or empty attribute on errors.
+ xml_attribute append_attribute(const char_t* name);
+ xml_attribute prepend_attribute(const char_t* name);
+ xml_attribute insert_attribute_after(const char_t* name, const xml_attribute& attr);
+ xml_attribute insert_attribute_before(const char_t* name, const xml_attribute& attr);
+
+ // Add a copy of the specified attribute. Returns added attribute, or empty attribute on errors.
+ xml_attribute append_copy(const xml_attribute& proto);
+ xml_attribute prepend_copy(const xml_attribute& proto);
+ xml_attribute insert_copy_after(const xml_attribute& proto, const xml_attribute& attr);
+ xml_attribute insert_copy_before(const xml_attribute& proto, const xml_attribute& attr);
+
+ // Add child node with specified type. Returns added node, or empty node on errors.
+ xml_node append_child(xml_node_type type = node_element);
+ xml_node prepend_child(xml_node_type type = node_element);
+ xml_node insert_child_after(xml_node_type type, const xml_node& node);
+ xml_node insert_child_before(xml_node_type type, const xml_node& node);
+
+ // Add child element with specified name. Returns added node, or empty node on errors.
+ xml_node append_child(const char_t* name);
+ xml_node prepend_child(const char_t* name);
+ xml_node insert_child_after(const char_t* name, const xml_node& node);
+ xml_node insert_child_before(const char_t* name, const xml_node& node);
+
+ // Add a copy of the specified node as a child. Returns added node, or empty node on errors.
+ xml_node append_copy(const xml_node& proto);
+ xml_node prepend_copy(const xml_node& proto);
+ xml_node insert_copy_after(const xml_node& proto, const xml_node& node);
+ xml_node insert_copy_before(const xml_node& proto, const xml_node& node);
+
+ // Remove specified attribute
+ bool remove_attribute(const xml_attribute& a);
+ bool remove_attribute(const char_t* name);
+
+ // Remove specified child
+ bool remove_child(const xml_node& n);
+ bool remove_child(const char_t* name);
+
+ // Parses buffer as an XML document fragment and appends all nodes as children of the current node.
+ // Copies/converts the buffer, so it may be deleted or changed after the function returns.
+ // Note: append_buffer allocates memory that has the lifetime of the owning document; removing the appended nodes does not immediately reclaim that memory.
+ xml_parse_result append_buffer(const void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+
+ // Find attribute using predicate. Returns first attribute for which predicate returned true.
+ template <typename Predicate> xml_attribute find_attribute(Predicate pred) const
+ {
+ if (!_root) return xml_attribute();
+
+ for (xml_attribute attrib = first_attribute(); attrib; attrib = attrib.next_attribute())
+ if (pred(attrib))
+ return attrib;
+
+ return xml_attribute();
+ }
+
+ // Find child node using predicate. Returns first child for which predicate returned true.
+ template <typename Predicate> xml_node find_child(Predicate pred) const
+ {
+ if (!_root) return xml_node();
+
+ for (xml_node node = first_child(); node; node = node.next_sibling())
+ if (pred(node))
+ return node;
+
+ return xml_node();
+ }
+
+ // Find node from subtree using predicate. Returns first node from subtree (depth-first), for which predicate returned true.
+ template <typename Predicate> xml_node find_node(Predicate pred) const
+ {
+ if (!_root) return xml_node();
+
+ xml_node cur = first_child();
+
+ while (cur._root && cur._root != _root)
+ {
+ if (pred(cur)) return cur;
+
+ if (cur.first_child()) cur = cur.first_child();
+ else if (cur.next_sibling()) cur = cur.next_sibling();
+ else
+ {
+ while (!cur.next_sibling() && cur._root != _root) cur = cur.parent();
+
+ if (cur._root != _root) cur = cur.next_sibling();
+ }
+ }
+
+ return xml_node();
+ }
+
+ // Find child node by attribute name/value
+ xml_node find_child_by_attribute(const char_t* name, const char_t* attr_name, const char_t* attr_value) const;
+ xml_node find_child_by_attribute(const char_t* attr_name, const char_t* attr_value) const;
+
+ #ifndef PUGIXML_NO_STL
+ // Get the absolute node path from root as a text string.
+ string_t path(char_t delimiter = '/') const;
+ #endif
+
+ // Search for a node by path consisting of node names and . or .. elements.
+ xml_node first_element_by_path(const char_t* path, char_t delimiter = '/') const;
+
+ // Recursively traverse subtree with xml_tree_walker
+ bool traverse(xml_tree_walker& walker);
+
+ #ifndef PUGIXML_NO_XPATH
+ // Select single node by evaluating XPath query. Returns first node from the resulting node set.
+ xpath_node select_single_node(const char_t* query, xpath_variable_set* variables = 0) const;
+ xpath_node select_single_node(const xpath_query& query) const;
+
+ // Select node set by evaluating XPath query
+ xpath_node_set select_nodes(const char_t* query, xpath_variable_set* variables = 0) const;
+ xpath_node_set select_nodes(const xpath_query& query) const;
+ #endif
+
+ // Print subtree using a writer object
+ void print(xml_writer& writer, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto, unsigned int depth = 0) const;
+
+ #ifndef PUGIXML_NO_STL
+ // Print subtree to stream
+ void print(std::basic_ostream<char, std::char_traits<char> >& os, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto, unsigned int depth = 0) const;
+ void print(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& os, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, unsigned int depth = 0) const;
+ #endif
+
+ // Child nodes iterators
+ typedef xml_node_iterator iterator;
+
+ iterator begin() const;
+ iterator end() const;
+
+ // Attribute iterators
+ typedef xml_attribute_iterator attribute_iterator;
+
+ attribute_iterator attributes_begin() const;
+ attribute_iterator attributes_end() const;
+
+ // Range-based for support
+ xml_object_range<xml_node_iterator> children() const;
+ xml_object_range<xml_named_node_iterator> children(const char_t* name) const;
+ xml_object_range<xml_attribute_iterator> attributes() const;
+
+ // Get node offset in parsed file/string (in char_t units) for debugging purposes
+ ptrdiff_t offset_debug() const;
+
+ // Get hash value (unique for handles to the same object)
+ size_t hash_value() const;
+
+ // Get internal pointer
+ xml_node_struct* internal_object() const;
+ };
+
+#ifdef __BORLANDC__
+ // Borland C++ workaround
+ bool PUGIXML_FUNCTION operator&&(const xml_node& lhs, bool rhs);
+ bool PUGIXML_FUNCTION operator||(const xml_node& lhs, bool rhs);
+#endif
+
+ // A helper for working with text inside PCDATA nodes
+ class PUGIXML_CLASS xml_text
+ {
+ friend class xml_node;
+
+ xml_node_struct* _root;
+
+ typedef void (*unspecified_bool_type)(xml_text***);
+
+ explicit xml_text(xml_node_struct* root);
+
+ xml_node_struct* _data_new();
+ xml_node_struct* _data() const;
+
+ public:
+ // Default constructor. Constructs an empty object.
+ xml_text();
+
+ // Safe bool conversion operator
+ operator unspecified_bool_type() const;
+
+ // Borland C++ workaround
+ bool operator!() const;
+
+ // Check if text object is empty
+ bool empty() const;
+
+ // Get text, or "" if object is empty
+ const char_t* get() const;
+
+ // Get text, or the default value if object is empty
+ const char_t* as_string(const char_t* def = PUGIXML_TEXT("")) const;
+
+ // Get text as a number, or the default value if conversion did not succeed or object is empty
+ int as_int(int def = 0) const;
+ unsigned int as_uint(unsigned int def = 0) const;
+ double as_double(double def = 0) const;
+ float as_float(float def = 0) const;
+
+ #ifdef PUGIXML_HAS_LONG_LONG
+ long long as_llong(long long def = 0) const;
+ unsigned long long as_ullong(unsigned long long def = 0) const;
+ #endif
+
+ // Get text as bool (returns true if first character is in '1tTyY' set), or the default value if object is empty
+ bool as_bool(bool def = false) const;
+
+ // Set text (returns false if object is empty or there is not enough memory)
+ bool set(const char_t* rhs);
+
+ // Set text with type conversion (numbers are converted to strings, boolean is converted to "true"/"false")
+ bool set(int rhs);
+ bool set(unsigned int rhs);
+ bool set(double rhs);
+ bool set(bool rhs);
+
+ #ifdef PUGIXML_HAS_LONG_LONG
+ bool set(long long rhs);
+ bool set(unsigned long long rhs);
+ #endif
+
+ // Set text (equivalent to set without error checking)
+ xml_text& operator=(const char_t* rhs);
+ xml_text& operator=(int rhs);
+ xml_text& operator=(unsigned int rhs);
+ xml_text& operator=(double rhs);
+ xml_text& operator=(bool rhs);
+
+ #ifdef PUGIXML_HAS_LONG_LONG
+ xml_text& operator=(long long rhs);
+ xml_text& operator=(unsigned long long rhs);
+ #endif
+
+ // Get the data node (node_pcdata or node_cdata) for this object
+ xml_node data() const;
+ };
+
+#ifdef __BORLANDC__
+ // Borland C++ workaround
+ bool PUGIXML_FUNCTION operator&&(const xml_text& lhs, bool rhs);
+ bool PUGIXML_FUNCTION operator||(const xml_text& lhs, bool rhs);
+#endif
+
+ // Child node iterator (a bidirectional iterator over a collection of xml_node)
+ class PUGIXML_CLASS xml_node_iterator
+ {
+ friend class xml_node;
+
+ private:
+ mutable xml_node _wrap;
+ xml_node _parent;
+
+ xml_node_iterator(xml_node_struct* ref, xml_node_struct* parent);
+
+ public:
+ // Iterator traits
+ typedef ptrdiff_t difference_type;
+ typedef xml_node value_type;
+ typedef xml_node* pointer;
+ typedef xml_node& reference;
+
+ #ifndef PUGIXML_NO_STL
+ typedef std::bidirectional_iterator_tag iterator_category;
+ #endif
+
+ // Default constructor
+ xml_node_iterator();
+
+ // Construct an iterator which points to the specified node
+ xml_node_iterator(const xml_node& node);
+
+ // Iterator operators
+ bool operator==(const xml_node_iterator& rhs) const;
+ bool operator!=(const xml_node_iterator& rhs) const;
+
+ xml_node& operator*() const;
+ xml_node* operator->() const;
+
+ const xml_node_iterator& operator++();
+ xml_node_iterator operator++(int);
+
+ const xml_node_iterator& operator--();
+ xml_node_iterator operator--(int);
+ };
+
+ // Attribute iterator (a bidirectional iterator over a collection of xml_attribute)
+ class PUGIXML_CLASS xml_attribute_iterator
+ {
+ friend class xml_node;
+
+ private:
+ mutable xml_attribute _wrap;
+ xml_node _parent;
+
+ xml_attribute_iterator(xml_attribute_struct* ref, xml_node_struct* parent);
+
+ public:
+ // Iterator traits
+ typedef ptrdiff_t difference_type;
+ typedef xml_attribute value_type;
+ typedef xml_attribute* pointer;
+ typedef xml_attribute& reference;
+
+ #ifndef PUGIXML_NO_STL
+ typedef std::bidirectional_iterator_tag iterator_category;
+ #endif
+
+ // Default constructor
+ xml_attribute_iterator();
+
+ // Construct an iterator which points to the specified attribute
+ xml_attribute_iterator(const xml_attribute& attr, const xml_node& parent);
+
+ // Iterator operators
+ bool operator==(const xml_attribute_iterator& rhs) const;
+ bool operator!=(const xml_attribute_iterator& rhs) const;
+
+ xml_attribute& operator*() const;
+ xml_attribute* operator->() const;
+
+ const xml_attribute_iterator& operator++();
+ xml_attribute_iterator operator++(int);
+
+ const xml_attribute_iterator& operator--();
+ xml_attribute_iterator operator--(int);
+ };
+
+ // Named node range helper
+ class PUGIXML_CLASS xml_named_node_iterator
+ {
+ friend class xml_node;
+
+ public:
+ // Iterator traits
+ typedef ptrdiff_t difference_type;
+ typedef xml_node value_type;
+ typedef xml_node* pointer;
+ typedef xml_node& reference;
+
+ #ifndef PUGIXML_NO_STL
+ typedef std::bidirectional_iterator_tag iterator_category;
+ #endif
+
+ // Default constructor
+ xml_named_node_iterator();
+
+ // Construct an iterator which points to the specified node
+ xml_named_node_iterator(const xml_node& node, const char_t* name);
+
+ // Iterator operators
+ bool operator==(const xml_named_node_iterator& rhs) const;
+ bool operator!=(const xml_named_node_iterator& rhs) const;
+
+ xml_node& operator*() const;
+ xml_node* operator->() const;
+
+ const xml_named_node_iterator& operator++();
+ xml_named_node_iterator operator++(int);
+
+ const xml_named_node_iterator& operator--();
+ xml_named_node_iterator operator--(int);
+
+ private:
+ mutable xml_node _wrap;
+ xml_node _parent;
+ const char_t* _name;
+
+ xml_named_node_iterator(xml_node_struct* ref, xml_node_struct* parent, const char_t* name);
+ };
+
+ // Abstract tree walker class (see xml_node::traverse)
+ class PUGIXML_CLASS xml_tree_walker
+ {
+ friend class xml_node;
+
+ private:
+ int _depth;
+
+ protected:
+ // Get current traversal depth
+ int depth() const;
+
+ public:
+ xml_tree_walker();
+ virtual ~xml_tree_walker();
+
+ // Callback that is called when traversal begins
+ virtual bool begin(xml_node& node);
+
+ // Callback that is called for each node traversed
+ virtual bool for_each(xml_node& node) = 0;
+
+ // Callback that is called when traversal ends
+ virtual bool end(xml_node& node);
+ };
+
+ // Parsing status, returned as part of xml_parse_result object
+ enum xml_parse_status
+ {
+ status_ok = 0, // No error
+
+ status_file_not_found, // File was not found during load_file()
+ status_io_error, // Error reading from file/stream
+ status_out_of_memory, // Could not allocate memory
+ status_internal_error, // Internal error occurred
+
+ status_unrecognized_tag, // Parser could not determine tag type
+
+ status_bad_pi, // Parsing error occurred while parsing document declaration/processing instruction
+ status_bad_comment, // Parsing error occurred while parsing comment
+ status_bad_cdata, // Parsing error occurred while parsing CDATA section
+ status_bad_doctype, // Parsing error occurred while parsing document type declaration
+ status_bad_pcdata, // Parsing error occurred while parsing PCDATA section
+ status_bad_start_element, // Parsing error occurred while parsing start element tag
+ status_bad_attribute, // Parsing error occurred while parsing element attribute
+ status_bad_end_element, // Parsing error occurred while parsing end element tag
+ status_end_element_mismatch,// There was a mismatch of start-end tags (closing tag had incorrect name, some tag was not closed or there was an excessive closing tag)
+
+ status_append_invalid_root, // Unable to append nodes since root type is not node_element or node_document (exclusive to xml_node::append_buffer)
+
+ status_no_document_element // Parsing resulted in a document without element nodes
+ };
+
+ // Parsing result
+ struct PUGIXML_CLASS xml_parse_result
+ {
+ // Parsing status (see xml_parse_status)
+ xml_parse_status status;
+
+ // Last parsed offset (in char_t units from start of input data)
+ ptrdiff_t offset;
+
+ // Source document encoding
+ xml_encoding encoding;
+
+ // Default constructor, initializes object to failed state
+ xml_parse_result();
+
+ // Cast to bool operator
+ operator bool() const;
+
+ // Get error description
+ const char* description() const;
+ };
+
+ // Document class (DOM tree root)
+ class PUGIXML_CLASS xml_document: public xml_node
+ {
+ private:
+ char_t* _buffer;
+
+ char _memory[192];
+
+ // Non-copyable semantics
+ xml_document(const xml_document&);
+ const xml_document& operator=(const xml_document&);
+
+ void create();
+ void destroy();
+
+ public:
+ // Default constructor, makes empty document
+ xml_document();
+
+ // Destructor, invalidates all node/attribute handles to this document
+ ~xml_document();
+
+ // Removes all nodes, leaving the empty document
+ void reset();
+
+ // Removes all nodes, then copies the entire contents of the specified document
+ void reset(const xml_document& proto);
+
+ #ifndef PUGIXML_NO_STL
+ // Load document from stream.
+ xml_parse_result load(std::basic_istream<char, std::char_traits<char> >& stream, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+ xml_parse_result load(std::basic_istream<wchar_t, std::char_traits<wchar_t> >& stream, unsigned int options = parse_default);
+ #endif
+
+ // Load document from zero-terminated string. No encoding conversions are applied.
+ xml_parse_result load(const char_t* contents, unsigned int options = parse_default);
+
+ // Load document from file
+ xml_parse_result load_file(const char* path, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+ xml_parse_result load_file(const wchar_t* path, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+
+ // Load document from buffer. Copies/converts the buffer, so it may be deleted or changed after the function returns.
+ xml_parse_result load_buffer(const void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+
+ // Load document from buffer, using the buffer for in-place parsing (the buffer is modified and used for storage of document data).
+ // You should ensure that buffer data will persist throughout the document's lifetime, and free the buffer memory manually once document is destroyed.
+ xml_parse_result load_buffer_inplace(void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+
+ // Load document from buffer, using the buffer for in-place parsing (the buffer is modified and used for storage of document data).
+ // You should allocate the buffer with pugixml allocation function; document will free the buffer when it is no longer needed (you can't use it anymore).
+ xml_parse_result load_buffer_inplace_own(void* contents, size_t size, unsigned int options = parse_default, xml_encoding encoding = encoding_auto);
+
+ // Save XML document to writer (semantics is slightly different from xml_node::print, see documentation for details).
+ void save(xml_writer& writer, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
+
+ #ifndef PUGIXML_NO_STL
+ // Save XML document to stream (semantics is slightly different from xml_node::print, see documentation for details).
+ void save(std::basic_ostream<char, std::char_traits<char> >& stream, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
+ void save(std::basic_ostream<wchar_t, std::char_traits<wchar_t> >& stream, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default) const;
+ #endif
+
+ // Save XML to file
+ bool save_file(const char* path, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
+ bool save_file(const wchar_t* path, const char_t* indent = PUGIXML_TEXT("\t"), unsigned int flags = format_default, xml_encoding encoding = encoding_auto) const;
+
+ // Get document element
+ xml_node document_element() const;
+ };
+
+#ifndef PUGIXML_NO_XPATH
+ // XPath query return type
+ enum xpath_value_type
+ {
+ xpath_type_none, // Unknown type (query failed to compile)
+ xpath_type_node_set, // Node set (xpath_node_set)
+ xpath_type_number, // Number
+ xpath_type_string, // String
+ xpath_type_boolean // Boolean
+ };
+
+ // XPath parsing result
+ struct PUGIXML_CLASS xpath_parse_result
+ {
+ // Error message (0 if no error)
+ const char* error;
+
+ // Last parsed offset (in char_t units from string start)
+ ptrdiff_t offset;
+
+ // Default constructor, initializes object to failed state
+ xpath_parse_result();
+
+ // Cast to bool operator
+ operator bool() const;
+
+ // Get error description
+ const char* description() const;
+ };
+
+ // A single XPath variable
+ class PUGIXML_CLASS xpath_variable
+ {
+ friend class xpath_variable_set;
+
+ protected:
+ xpath_value_type _type;
+ xpath_variable* _next;
+
+ xpath_variable();
+
+ // Non-copyable semantics
+ xpath_variable(const xpath_variable&);
+ xpath_variable& operator=(const xpath_variable&);
+
+ public:
+ // Get variable name
+ const char_t* name() const;
+
+ // Get variable type
+ xpath_value_type type() const;
+
+ // Get variable value; no type conversion is performed, default value (false, NaN, empty string, empty node set) is returned on type mismatch error
+ bool get_boolean() const;
+ double get_number() const;
+ const char_t* get_string() const;
+ const xpath_node_set& get_node_set() const;
+
+ // Set variable value; no type conversion is performed, false is returned on type mismatch error
+ bool set(bool value);
+ bool set(double value);
+ bool set(const char_t* value);
+ bool set(const xpath_node_set& value);
+ };
+
+ // A set of XPath variables
+ class PUGIXML_CLASS xpath_variable_set
+ {
+ private:
+ xpath_variable* _data[64];
+
+ // Non-copyable semantics
+ xpath_variable_set(const xpath_variable_set&);
+ xpath_variable_set& operator=(const xpath_variable_set&);
+
+ xpath_variable* find(const char_t* name) const;
+
+ public:
+ // Default constructor/destructor
+ xpath_variable_set();
+ ~xpath_variable_set();
+
+ // Add a new variable or get the existing one, if the types match
+ xpath_variable* add(const char_t* name, xpath_value_type type);
+
+ // Set value of an existing variable; no type conversion is performed, false is returned if there is no such variable or if types mismatch
+ bool set(const char_t* name, bool value);
+ bool set(const char_t* name, double value);
+ bool set(const char_t* name, const char_t* value);
+ bool set(const char_t* name, const xpath_node_set& value);
+
+ // Get existing variable by name
+ xpath_variable* get(const char_t* name);
+ const xpath_variable* get(const char_t* name) const;
+ };
+
+ // A compiled XPath query object
+ class PUGIXML_CLASS xpath_query
+ {
+ private:
+ void* _impl;
+ xpath_parse_result _result;
+
+ typedef void (*unspecified_bool_type)(xpath_query***);
+
+ // Non-copyable semantics
+ xpath_query(const xpath_query&);
+ xpath_query& operator=(const xpath_query&);
+
+ public:
+ // Construct a compiled object from XPath expression.
+ // If PUGIXML_NO_EXCEPTIONS is not defined, throws xpath_exception on compilation errors.
+ explicit xpath_query(const char_t* query, xpath_variable_set* variables = 0);
+
+ // Destructor
+ ~xpath_query();
+
+ // Get query expression return type
+ xpath_value_type return_type() const;
+
+ // Evaluate expression as boolean value in the specified context; performs type conversion if necessary.
+ // If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
+ bool evaluate_boolean(const xpath_node& n) const;
+
+ // Evaluate expression as double value in the specified context; performs type conversion if necessary.
+ // If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
+ double evaluate_number(const xpath_node& n) const;
+
+ #ifndef PUGIXML_NO_STL
+ // Evaluate expression as string value in the specified context; performs type conversion if necessary.
+ // If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
+ string_t evaluate_string(const xpath_node& n) const;
+ #endif
+
+ // Evaluate expression as string value in the specified context; performs type conversion if necessary.
+ // At most capacity characters are written to the destination buffer, full result size is returned (includes terminating zero).
+ // If PUGIXML_NO_EXCEPTIONS is not defined, throws std::bad_alloc on out of memory errors.
+ // If PUGIXML_NO_EXCEPTIONS is defined, returns empty set instead.
+ size_t evaluate_string(char_t* buffer, size_t capacity, const xpath_node& n) const;
+
+ // Evaluate expression as node set in the specified context.
+ // If PUGIXML_NO_EXCEPTIONS is not defined, throws xpath_exception on type mismatch and std::bad_alloc on out of memory errors.
+ // If PUGIXML_NO_EXCEPTIONS is defined, returns empty node set instead.
+ xpath_node_set evaluate_node_set(const xpath_node& n) const;
+
+ // Get parsing result (used to get compilation errors in PUGIXML_NO_EXCEPTIONS mode)
+ const xpath_parse_result& result() const;
+
+ // Safe bool conversion operator
+ operator unspecified_bool_type() const;
+
+ // Borland C++ workaround
+ bool operator!() const;
+ };
+
+ #ifndef PUGIXML_NO_EXCEPTIONS
+ // XPath exception class
+ class PUGIXML_CLASS xpath_exception: public std::exception
+ {
+ private:
+ xpath_parse_result _result;
+
+ public:
+ // Construct exception from parse result
+ explicit xpath_exception(const xpath_parse_result& result);
+
+ // Get error message
+ virtual const char* what() const throw();
+
+ // Get parse result
+ const xpath_parse_result& result() const;
+ };
+ #endif
+
+ // XPath node class (either xml_node or xml_attribute)
+ class PUGIXML_CLASS xpath_node
+ {
+ private:
+ xml_node _node;
+ xml_attribute _attribute;
+
+ typedef void (*unspecified_bool_type)(xpath_node***);
+
+ public:
+ // Default constructor; constructs empty XPath node
+ xpath_node();
+
+ // Construct XPath node from XML node/attribute
+ xpath_node(const xml_node& node);
+ xpath_node(const xml_attribute& attribute, const xml_node& parent);
+
+ // Get node/attribute, if any
+ xml_node node() const;
+ xml_attribute attribute() const;
+
+ // Get parent of contained node/attribute
+ xml_node parent() const;
+
+ // Safe bool conversion operator
+ operator unspecified_bool_type() const;
+
+ // Borland C++ workaround
+ bool operator!() const;
+
+ // Comparison operators
+ bool operator==(const xpath_node& n) const;
+ bool operator!=(const xpath_node& n) const;
+ };
+
+#ifdef __BORLANDC__
+ // Borland C++ workaround
+ bool PUGIXML_FUNCTION operator&&(const xpath_node& lhs, bool rhs);
+ bool PUGIXML_FUNCTION operator||(const xpath_node& lhs, bool rhs);
+#endif
+
+ // A fixed-size collection of XPath nodes
+ class PUGIXML_CLASS xpath_node_set
+ {
+ public:
+ // Collection type
+ enum type_t
+ {
+ type_unsorted, // Not ordered
+ type_sorted, // Sorted by document order (ascending)
+ type_sorted_reverse // Sorted by document order (descending)
+ };
+
+ // Constant iterator type
+ typedef const xpath_node* const_iterator;
+
+ // Default constructor. Constructs empty set.
+ xpath_node_set();
+
+ // Constructs a set from iterator range; data is not checked for duplicates and is not sorted according to provided type, so be careful
+ xpath_node_set(const_iterator begin, const_iterator end, type_t type = type_unsorted);
+
+ // Destructor
+ ~xpath_node_set();
+
+ // Copy constructor/assignment operator
+ xpath_node_set(const xpath_node_set& ns);
+ xpath_node_set& operator=(const xpath_node_set& ns);
+
+ // Get collection type
+ type_t type() const;
+
+ // Get collection size
+ size_t size() const;
+
+ // Indexing operator
+ const xpath_node& operator[](size_t index) const;
+
+ // Collection iterators
+ const_iterator begin() const;
+ const_iterator end() const;
+
+ // Sort the collection in ascending/descending order by document order
+ void sort(bool reverse = false);
+
+ // Get first node in the collection by document order
+ xpath_node first() const;
+
+ // Check if collection is empty
+ bool empty() const;
+
+ private:
+ type_t _type;
+
+ xpath_node _storage;
+
+ xpath_node* _begin;
+ xpath_node* _end;
+
+ void _assign(const_iterator begin, const_iterator end);
+ };
+#endif
+
+#ifndef PUGIXML_NO_STL
+ // Convert wide string to UTF8
+ std::basic_string<char, std::char_traits<char>, std::allocator<char> > PUGIXML_FUNCTION as_utf8(const wchar_t* str);
+ std::basic_string<char, std::char_traits<char>, std::allocator<char> > PUGIXML_FUNCTION as_utf8(const std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >& str);
+
+ // Convert UTF8 to wide string
+ std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > PUGIXML_FUNCTION as_wide(const char* str);
+ std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > PUGIXML_FUNCTION as_wide(const std::basic_string<char, std::char_traits<char>, std::allocator<char> >& str);
+#endif
+
+ // Memory allocation function interface; returns pointer to allocated memory or NULL on failure
+ typedef void* (*allocation_function)(size_t size);
+
+ // Memory deallocation function interface
+ typedef void (*deallocation_function)(void* ptr);
+
+ // Override default memory management functions. All subsequent allocations/deallocations will be performed via supplied functions.
+ void PUGIXML_FUNCTION set_memory_management_functions(allocation_function allocate, deallocation_function deallocate);
+
+ // Get current memory management functions
+ allocation_function PUGIXML_FUNCTION get_memory_allocation_function();
+ deallocation_function PUGIXML_FUNCTION get_memory_deallocation_function();
+}
+
+#if !defined(PUGIXML_NO_STL) && (defined(_MSC_VER) || defined(__ICC))
+namespace std
+{
+ // Workarounds for (non-standard) iterator category detection for older versions (MSVC7/IC8 and earlier)
+ std::bidirectional_iterator_tag PUGIXML_FUNCTION _Iter_cat(const pugi::xml_node_iterator&);
+ std::bidirectional_iterator_tag PUGIXML_FUNCTION _Iter_cat(const pugi::xml_attribute_iterator&);
+ std::bidirectional_iterator_tag PUGIXML_FUNCTION _Iter_cat(const pugi::xml_named_node_iterator&);
+}
+#endif
+
+#if !defined(PUGIXML_NO_STL) && defined(__SUNPRO_CC)
+namespace std
+{
+ // Workarounds for (non-standard) iterator category detection
+ std::bidirectional_iterator_tag PUGIXML_FUNCTION __iterator_category(const pugi::xml_node_iterator&);
+ std::bidirectional_iterator_tag PUGIXML_FUNCTION __iterator_category(const pugi::xml_attribute_iterator&);
+ std::bidirectional_iterator_tag PUGIXML_FUNCTION __iterator_category(const pugi::xml_named_node_iterator&);
+}
+#endif
+
+#endif
+
+/**
+ * Copyright (c) 2006-2014 Arseny Kapoulkine
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
--
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