1 /* $FreeBSD$ */ 2 /* $NetBSD: lex.l,v 1.4 2006/02/09 22:03:15 dogcow Exp $ */ 3 4 %{ 5 /*- 6 * SPDX-License-Identifier: BSD-2-Clause 7 * 8 * Copyright (c)2003 Citrus Project, 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 #include <sys/endian.h> 35 36 #include <assert.h> 37 #include <errno.h> 38 #include <limits.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 43 #include "ldef.h" 44 #include "yacc.h" 45 46 #define YY_DECL int yylex(void) 47 48 int linenumber = 1; 49 %} 50 %option noinput 51 %option nounput 52 53 %x COMMENT 54 55 %% 56 57 [ \t]+ { } 58 #.*[\n]|"//".*[\n]|[\n] { linenumber++; return (R_LN); } 59 60 "/*" { BEGIN COMMENT; } 61 <COMMENT>"*/" { BEGIN 0; } 62 <COMMENT>[\n] { linenumber++; } 63 <COMMENT>. { } 64 <COMMENT><<EOF>> { 65 yyerror("unexpected file end (unterminated comment)\n"); 66 exit(1); 67 } 68 69 "="|"/"|"-" { return ((int)yytext[0]); } 70 71 ([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+) { 72 yylval.i_value = strtoul(yytext, NULL, 0); 73 return (L_IMM); 74 } 75 76 "TYPE" { return (R_TYPE); } 77 "NAME" { return (R_NAME); } 78 "SRC_ZONE" { return (R_SRC_ZONE); } 79 "DST_INVALID" { return (R_DST_INVALID); } 80 "DST_ILSEQ" { return (R_DST_ILSEQ); } 81 "DST_UNIT_BITS" { return (R_DST_UNIT_BITS); } 82 "BEGIN_MAP" { return (R_BEGIN_MAP); } 83 "END_MAP" { return (R_END_MAP); } 84 "INVALID" { return (R_INVALID); } 85 "ILSEQ" { return (R_ILSEQ); } 86 "OOB_MODE" { return (R_OOB_MODE); } 87 "ROWCOL" { return (R_ROWCOL); } 88 89 \"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\' { 90 size_t len; 91 92 len = strlen(yytext); 93 yylval.s_value = malloc(len - 1); 94 strlcpy(yylval.s_value, yytext + 1, len - 1); 95 return (L_STRING); 96 } 97 [^ =/\-0-9\t\n][^ \t\n]* { 98 yylval.s_value = strdup(yytext); 99 return (L_STRING); 100 } 101 102 %% 103 104 #ifndef yywrap 105 int 106 yywrap(void) 107 { 108 109 return (1); 110 } 111 #endif 112