badvpn/predicate/BPredicate.l
2012-07-24 10:26:30 +00:00

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/**
* @file BPredicate.l
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @section DESCRIPTION
*
* {@link BPredicate} lexer file.
*/
%{
#include <string.h>
#include <stdlib.h>
#include <predicate/LexMemoryBufferInput.h>
#include <predicate/BPredicate_internal.h>
#include <generated/bison_BPredicate.h>
#define YY_INPUT(buffer, res, max_size) \
int bytes_read = LexMemoryBufferInput_Read((LexMemoryBufferInput *)yyget_extra(yyscanner), buffer, max_size); \
res = (bytes_read == 0 ? YY_NULL : bytes_read);
%}
%option reentrant stack noyywrap bison-bridge bison-locations never-interactive nounistd
%%
\( return SPAR;
\) return EPAR;
, return COMMA;
AND return AND;
OR return OR;
NOT return NOT;
true return CONSTANT_TRUE;
false return CONSTANT_FALSE;
[a-zA-Z0-9_]+ {
int l = strlen(yytext);
char *p = (char *)malloc(l + 1);
if (p) {
memcpy(p, yytext, l);
p[l] = '\0';
}
yylval->text = p;
return NAME;
}
\"[^\"]*\" {
int l = strlen(yytext);
char *p = (char *)malloc(l - 1);
if (p) {
memcpy(p, yytext + 1, l - 2);
p[l - 2] = '\0';
}
yylval->text = p;
return STRING;
}
[ \t\n]+ ;
. LexMemoryBufferInput_SetError((LexMemoryBufferInput *)yyget_extra(yyscanner)); return 0; // remember failure and report EOF
%%