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switch to using reentrant "pure_parser". Changed

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decl for yylex, changed graph yylval to lvalp param.


[SVN r9747]
This commit is contained in:
Jeremy Siek
2001-04-09 15:11:01 +00:00
parent 8401f69cbb
commit 65e10bc39f
1 changed files with 5 additions and 2 deletions
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7
src/graphviz_lex.l
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@@ -33,6 +33,9 @@ static std::string literal;
static void begin_literal();
static void add_string(const char* str);
static void end_literal();
#include "yystype.h"
#define YY_DECL int yylex(YYSTYPE* lvalp)
%}
%x Comment
@@ -58,9 +61,9 @@ ID {VARIABLE}|{NUMBER}
"strict" ;
"subgraph" { return SUBGRAPH_T; }
"->"|"--" { return EDGEOP_T; }
{ID} { yylval.ptr = (void*)(new std::string(yytext)); return ID_T; }
{ID} { lvalp->ptr = (void*)(new std::string(yytext)); return ID_T; }
["] { BEGIN Literal; begin_literal(); }
<Literal>["] { BEGIN INITIAL; end_literal(); yylval.ptr = (void*)(new std::string(literal)); return ID_T; }
<Literal>["] { BEGIN INITIAL; end_literal(); lvalp->ptr = (void*)(new std::string(literal)); return ID_T; }
<Literal>[\\][\n] ;
<Literal>([^"\\]*|[\\].) { add_string(yytext); }
[ \t] ;