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100 lines
2.6 KiB
Plaintext
100 lines
2.6 KiB
Plaintext
/* $FreeBSD$ */
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/* $NetBSD: lex.l,v 1.3 2006/02/09 22:03:15 dogcow Exp $ */
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%{
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/*-
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* Copyright (c)2003 Citrus Project,
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/endian.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <errno.h>
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#include <limits.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 "ldef.h"
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#include "yacc.h"
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int line_number = 1;
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%}
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%option nounput
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%x COMMENT
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%%
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[ \t]+ { }
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#.*[\n]|"//".*[\n]|[\n] { line_number++; return (R_LN); }
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"/*" { BEGIN COMMENT; }
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<COMMENT>"*/" { BEGIN 0; }
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<COMMENT>[\n] { line_number++; }
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<COMMENT>. { }
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<COMMENT><<EOF>> {
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yyerror("unexpected file end (unterminated comment)\n");
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exit(1);
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}
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([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+) {
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yylval.i_value = strtoul(yytext, NULL, 0);
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return (L_IMM);
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}
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"NAME" { return (R_NAME); }
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"ENCODING" { return (R_ENCODING); }
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"VARIABLE" { return (R_VARIABLE); }
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"DEFCSID" { return (R_DEFCSID); }
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"INVALID" { return (R_INVALID); }
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\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\' {
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size_t len;
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len = strlen(yytext);
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yylval.s_value = malloc(len - 1);
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strlcpy(yylval.s_value, yytext + 1, len - 1);
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return (L_STRING);
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}
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[^ =/\-0-9\t\n][^ \t\n]* {
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yylval.s_value = strdup(yytext);
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return (L_STRING);
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}
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%%
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#ifndef yywrap
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int
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yywrap(void)
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{
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return (1);
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}
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#endif
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