mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-11-26 12:11:52 +02:00
60 lines
930 B
Plaintext
60 lines
930 B
Plaintext
%{
|
|
/*
|
|
* lang.l - BOOM syntax
|
|
*
|
|
* Copyright 2012 by Werner Almesberger
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "util.h"
|
|
#include "param.h"
|
|
#include "y.tab.h"
|
|
|
|
|
|
static int lineno = 1;
|
|
|
|
%}
|
|
|
|
%%
|
|
|
|
[-_A-Za-z0-9()+./]+ { yylval.s = unique(yytext);
|
|
return WORD; }
|
|
|
|
"<=" return TOK_LE;
|
|
">=" return TOK_GE;
|
|
|
|
[ \t] ;
|
|
\n lineno++;
|
|
^#[^n]*\n lineno++;
|
|
|
|
. return *yytext;
|
|
|
|
%%
|
|
|
|
|
|
void yyerrorf(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
fprintf(stderr, "%d: ", lineno);
|
|
vfprintf(stderr, fmt, ap) ;
|
|
fprintf(stderr, "\n");
|
|
va_end(ap);
|
|
exit(1);
|
|
}
|
|
|
|
|
|
void yyerror(const char *s)
|
|
{
|
|
fprintf(stderr, "%d: %s\n", lineno, s);
|
|
exit(1);
|
|
}
|