VexRiscvBPluginGenerator/inst_lex.l
2021-02-14 03:18:11 -05:00

48 lines
1.3 KiB
Text

%{
/*
* Copyright (c) 2020 Romain Dolbeau <romain.dolbeau@european-processor-initiative.eu>
* MIT License
* See the LICENSE file at the top level of this software distribution for details.
*/
#include <stdio.h>
#include <stdlib.h>
#include "inst_par.h"
%}
CHAR [[:alnum:] ,'&./()-]
FCHARNAME [[:alpha:]]
CHARNAME [[:alnum:]_+-]
SPACE [ \t]
%%
^"I" { return INST; }
^"S" { return SEM; }
^"T" { return MEMSEM; }
^"P" { return PROL; }
^"E" { return EXTRA; }
"//".* { }
{FCHARNAME}{CHARNAME}{CHARNAME}* { yylval.string = strdup(yytext); return NAME; }
{CHARNAME}{32} { yylval.string = strdup(yytext); return NAME; }
"\"\"\""[^ù]*"\"\"\"" { yylval.string = strndup(yytext+3, strlen(yytext)-6); return STRING; }
"'''"[^ù]*"'''" { yylval.string = strndup(yytext+3, strlen(yytext)-6); return STRING; }
"\"".*"\"" { yylval.string = strndup(yytext+1, strlen(yytext)-2); return STRING; }
[0-9][0-9]* { yylval.num = atoi(yytext); return NUM; }
\n { return yytext[0]; }
{SPACE}+ { }
%%