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/* see: http://www.phpcompiler.org/articles/reentrantparser.html */
/* see: http://spinroot.com/spin/Man/operators.html */
%option yylineno
%option reentrant
%option bison-bridge
%option prefix="promela_"
%option outfile="promela.lex.yy.cpp"
%option noyywrap
%option debug
%option never-interactive nounistd
%option bison-locations
%{
#include "../PromelaParser.h"
#include "promela.tab.hpp"
#define YYSTYPE PROMELA_STYPE
#define YYLTYPE PROMELA_LTYPE
#define YY_USER_INIT \
yycolumn = yylloc->first_line = yylloc->first_column = 0; \
yylineno = yylloc->last_line = yylloc->last_column = 0; \
//int yycolumn = 1;
#define YY_USER_ACTION \
{ \
yylloc->first_line = yylineno; \
yylloc->first_column = yycolumn; \
yylloc->last_column = yycolumn + yyleng; \
yylloc->last_line = yylineno; \
yycolumn = yycolumn + yyleng; \
}
%}
DIGIT [0-9]
ID [_a-zA-Z][_a-zA-Z0-9]*
L [a-zA-Z_]
%%
\/\*([^*]|\*[^/])*\*+\/ /* multiline comments */
bit|bool|byte|int|mtype|short|unsigned|string|auto {
yylval->value = strdup(yytext);
return PML_TYPE;
}
len { return PML_LEN; }
false|skip|true { yylval->value = strdup(yytext); return PML_CONST; }
printf { return PML_PRINT; }
typedef { return PML_TYPEDEF; }
assert { return PML_ASSERT; }
"!" { return PML_NEG; }
"~" { return PML_COMPL; }
"++" { return PML_INCR; }
"--" { return PML_DECR; }
"*" { return PML_TIMES; }
"/" { return PML_DIVIDE; }
"%" { return PML_MODULO; }
"+" { return PML_PLUS; }
"-" { return PML_MINUS; }
"<<" { return PML_LSHIFT; }
">>" { return PML_RSHIFT; }
"<=" { return PML_LE; }
">=" { return PML_GE; }
"<" { return PML_LT; }
">" { return PML_GT; }
"!=" { return PML_NE; }
"==" { return PML_EQ; }
"&" { return PML_BITAND; }
"^" { return PML_BITXOR; }
"|" { return PML_BITOR; }
"&&" { return PML_AND; }
"||" { return PML_OR; }
"." { return PML_DOT; }
"," { return PML_COMMA; }
";" { return PML_SEMI; }
"(" { return '('; }
")" { return ')'; }
"[" { return '['; }
"]" { return ']'; }
"{" { return '{'; }
"}" { return '}'; }
"=" { return PML_ASGN; }
L?\"(\\.|[^\\"])*\" { yylval->value = strdup(yytext); return(PML_STRING); }
L?'(\\.|[^\'])*\' {
/* Non PROMELA extension for single quoted string literals */
yylval->value = strdup(yytext); return(PML_STRING);
}
{DIGIT}+ { yylval->value = strdup(yytext); return PML_CONST; }
{ID} { yylval->value = strdup(yytext); return PML_NAME; }
[ \t\n]+ /* eat up whitespace */
. { /*printf( "Unrecognized character: %s\n", yytext ); */ }
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