68 lines
1.9 KiB
Text
68 lines
1.9 KiB
Text
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/* $NetBSD: scanner.l,v 1.1.1.1 2009/10/26 00:29:16 christos Exp $ */
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/*
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* This file is part of flex.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE.
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*/
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%{
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/* The scanner expects to link to bison yylval . */
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#include <stdio.h>
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#include <stdlib.h>
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#include "parser.h"
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#include "config.h"
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static char* STRDUP(char* s1);
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#define YY_EXTRA_TYPE int
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%}
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%option 8bit outfile="scanner.c" prefix="test"
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%option reentrant bison-bridge bison-locations yylineno
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%option nomain nounput noyy_top_state noyywrap nodefault warn
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%option prefix="test" header="scanner.h"
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%%
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if ( !yyextra)
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yyextra = 1;
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^[[:digit:]]+ {
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yylval->lineno = yyextra++;
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yylloc->first_line = (int)strtol(yytext,NULL,10);
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return LINENO;
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}
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":" { return COLON; }
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" " { return SPACE; }
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"=" { return EQUAL; }
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[[:alnum:]_]+ { yylval->str = STRDUP(yytext); return IDENT;}
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\r|\n { }
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. { yyterminate();}
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%%
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static char* STRDUP(char* s1)
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{
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char* s2 = (char*)malloc(strlen(s1)+1);
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sprintf(s2,"%s",s1);
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return s2;
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}
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