100 lines
3.9 KiB
Plaintext
100 lines
3.9 KiB
Plaintext
/*********************************************************************************************************
|
|
* Software License Agreement (BSD License) *
|
|
* Author: Sebastien Decugis <sdecugis@freediameter.net> *
|
|
* *
|
|
* Copyright (c) 2013, WIDE Project and NICT *
|
|
* All rights reserved. *
|
|
* *
|
|
* Redistribution and use of this software in source and binary forms, with or without modification, are *
|
|
* permitted provided that the following conditions are met: *
|
|
* *
|
|
* * Redistributions of source code must retain the above *
|
|
* copyright notice, this list of conditions and the *
|
|
* following disclaimer. *
|
|
* *
|
|
* * 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. *
|
|
* *
|
|
* * Neither the name of the WIDE Project or NICT nor the *
|
|
* names of its contributors may be used to endorse or *
|
|
* promote products derived from this software without *
|
|
* specific prior written permission of WIDE Project and *
|
|
* NICT. *
|
|
* *
|
|
* 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 COPYRIGHT OWNER OR CONTRIBUTORS 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. *
|
|
*********************************************************************************************************/
|
|
|
|
/* Tokenizer for echo/drop plugin */
|
|
|
|
%{
|
|
#include "rgwx_echodrop.h"
|
|
#include "rgwx_echodrop.tab.h"
|
|
|
|
/* Update the column information */
|
|
#define YY_USER_ACTION { \
|
|
yylloc->first_column = yylloc->last_column + 1; \
|
|
yylloc->last_column = yylloc->first_column + yyleng - 1; \
|
|
}
|
|
|
|
/* %option noinput ? */
|
|
#define YY_NO_INPUT
|
|
%}
|
|
|
|
%option bison-bridge bison-locations
|
|
%option noyywrap
|
|
%option nounput
|
|
|
|
%%
|
|
|
|
<*>\n {
|
|
/* Update the line count */
|
|
yylloc->first_line++;
|
|
yylloc->last_line++;
|
|
yylloc->last_column=0;
|
|
}
|
|
|
|
<*>([[:space:]]{-}[\n])+ ; /* Eat all spaces, not new lines */
|
|
<*>#.*$ ; /* Eat all comments */
|
|
|
|
[[:digit:]]+ {
|
|
/* Match an integer (not hexa) */
|
|
int ret = sscanf(yytext, "%d", &yylval->integer);
|
|
if (ret != 1) {
|
|
/* No matching: an error occurred */
|
|
fd_log_debug("[echodrop.rgwx] Unable to convert the value '%s' to a valid number: %s", yytext, strerror(errno));
|
|
return LEX_ERROR; /* trig an error in yacc parser */
|
|
/* Maybe we could REJECT instead of failing here? */
|
|
}
|
|
return INTEGER;
|
|
}
|
|
|
|
(?i:"echo") { return TOK_ECHO; }
|
|
(?i:"drop") { return TOK_DROP; }
|
|
(?i:"code") { return TOK_CODE; }
|
|
(?i:"vendor") { return TOK_VENDOR; }
|
|
(?i:"tlv") { return TOK_TLV; }
|
|
(?i:"ext") { return TOK_EXT; }
|
|
|
|
/* Valid single characters for yyparse */
|
|
<*>[;] { return yytext[0]; }
|
|
|
|
|
|
/* Unrecognized token */
|
|
<*>[[:alnum:]]+ | /* This rule is only useful to print a complete token in error messages */
|
|
/* Unrecognized character */
|
|
<*>. {
|
|
fd_log_debug("[echodrop.rgwx] Unrecognized text on line %d col %d: '%s'.", yylloc->first_line, yylloc->first_column, yytext);
|
|
return LEX_ERROR;
|
|
}
|
|
|
|
%%
|