Bug#846264: yacc/bison highlighting interprets semicolon in quotes as end of rule

[James McCoy]

Hi Charles,

Given a simple file like

  %token SEMICOLON ";"

  %%
  iteration_statement:
  	"do" statement "while" "(" expression_in ")" ";" |
  	"while" "(" expression_in ")" statement ;

The ";" in iteration_statement ends the syntax highlighting for the
rule.  Since it's quoted, it shouldn't be treated as ending the rule.

Cheers,
-- 
James
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