135 lines
3.3 KiB
Plaintext
135 lines
3.3 KiB
Plaintext
%{
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/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 2003
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* Bill Paul <wpaul@windriver.com>. All rights reserved.
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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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-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 BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <regex.h>
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "y.tab.h"
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int lineno = 1;
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int yylex(void);
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void yyerror(const char *);
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static void
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update_lineno(const char *cp)
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{
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while (*cp)
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if (*cp++ == '\n')
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lineno++;
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}
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%}
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%option noyywrap
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%option nounput
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%option noinput
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%%
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[ \t]+ ;
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\n { lineno++; return EOL; }
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\r ;
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;.*$ ;
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\/\/.*$ ;
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= { return EQUALS; }
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, { return COMMA; }
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\"(\\\"|[^"]|\"\")*\" {
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int len = strlen(yytext) - 2;
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int blen = len + 1;
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char *walker;
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int i;
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update_lineno(yytext);
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yylval.str = (char *)malloc(blen);
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if (yylval.str == NULL)
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goto out;
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walker = yylval.str;
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for (i = 1; i <= len; i++) {
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if (yytext[i] == '\"') {
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switch (yytext[i + 1]) {
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case '\"':
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i++;
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break;
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default:
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break;
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}
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}
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if (yytext[i] == '\\') {
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switch (yytext[i + 1]) {
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case '\n':
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i += 2;
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while(isspace(yytext[i]))
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i++;
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break;
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case '\"':
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i++;
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break;
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case '(':
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i++;
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break;
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default:
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break;
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}
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}
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*walker++ = yytext[i];
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}
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*walker++ = '\0';
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out:;
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return STRING;
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}
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\[[a-zA-Z0-9%&\{\}\-\.\/_\\\*\ ]+\] {
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int len = strlen(yytext);
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yytext[len-1] = '\0';
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yylval.str = strdup(yytext+1);
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return SECTION;
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}
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[a-zA-Z0-9%&\{\}\-\.\/_\\\*]+ {
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yylval.str = strdup(yytext);
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return WORD;
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}
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%%
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void
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yyerror(const char *s)
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{
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errx(1, "line %d: %s%s %s.", lineno, yytext, yytext?":":"", s);
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}
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