lex.l revision 238197
1/* $FreeBSD: head/usr.bin/mkcsmapper/lex.l 238197 2012-07-07 17:05:55Z eadler $ */ 2/* $NetBSD: lex.l,v 1.4 2006/02/09 22:03:15 dogcow Exp $ */ 3 4%{ 5/*- 6 * Copyright (c)2003 Citrus Project, 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#include <sys/cdefs.h> 32#include <sys/endian.h> 33 34#include <assert.h> 35#include <errno.h> 36#include <limits.h> 37#include <stdio.h> 38#include <stdlib.h> 39#include <string.h> 40 41#include "ldef.h" 42#include "yacc.h" 43 44int line_number = 1; 45%} 46%option nounput 47 48%x COMMENT 49 50%% 51 52[ \t]+ { } 53#.*[\n]|"//".*[\n]|[\n] { line_number++; return (R_LN); } 54 55"/*" { BEGIN COMMENT; } 56<COMMENT>"*/" { BEGIN 0; } 57<COMMENT>[\n] { line_number++; } 58<COMMENT>. { } 59<COMMENT><<EOF>> { 60 yyerror("unexpected file end (unterminated comment)\n"); 61 exit(1); 62 } 63 64"="|"/"|"-" { return ((int)yytext[0]); } 65 66([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+) { 67 yylval.i_value = strtoul(yytext, NULL, 0); 68 return (L_IMM); 69 } 70 71"TYPE" { return (R_TYPE); } 72"NAME" { return (R_NAME); } 73"SRC_ZONE" { return (R_SRC_ZONE); } 74"DST_INVALID" { return (R_DST_INVALID); } 75"DST_ILSEQ" { return (R_DST_ILSEQ); } 76"DST_UNIT_BITS" { return (R_DST_UNIT_BITS); } 77"BEGIN_MAP" { return (R_BEGIN_MAP); } 78"END_MAP" { return (R_END_MAP); } 79"INVALID" { return (R_INVALID); } 80"ILSEQ" { return (R_ILSEQ); } 81"OOB_MODE" { return (R_OOB_MODE); } 82"ROWCOL" { return (R_ROWCOL); } 83 84\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\' { 85 size_t len; 86 87 len = strlen(yytext); 88 yylval.s_value = malloc(len - 1); 89 strlcpy(yylval.s_value, yytext + 1, len - 1); 90 return (L_STRING); 91 } 92[^ =/\-0-9\t\n][^ \t\n]* { 93 yylval.s_value = strdup(yytext); 94 return (L_STRING); 95 } 96 97%% 98 99#ifndef yywrap 100int 101yywrap(void) 102{ 103 104 return (1); 105} 106#endif 107