1 /* $FreeBSD$ */ 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 44 #define YY_DECL int yylex(void) 45 46 int linenumber = 1; 47 %} 48 %option noinput 49 %option nounput 50 51 %x COMMENT 52 53 %% 54 55 [ \t]+ { } 56 #.*[\n]|"//".*[\n]|[\n] { linenumber++; return (R_LN); } 57 58 "/*" { BEGIN COMMENT; } 59 <COMMENT>"*/" { BEGIN 0; } 60 <COMMENT>[\n] { linenumber++; } 61 <COMMENT>. { } 62 <COMMENT><<EOF>> { 63 yyerror("unexpected file end (unterminated comment)\n"); 64 exit(1); 65 } 66 67 "="|"/"|"-" { return ((int)yytext[0]); } 68 69 ([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+) { 70 yylval.i_value = strtoul(yytext, NULL, 0); 71 return (L_IMM); 72 } 73 74 "TYPE" { return (R_TYPE); } 75 "NAME" { return (R_NAME); } 76 "SRC_ZONE" { return (R_SRC_ZONE); } 77 "DST_INVALID" { return (R_DST_INVALID); } 78 "DST_ILSEQ" { return (R_DST_ILSEQ); } 79 "DST_UNIT_BITS" { return (R_DST_UNIT_BITS); } 80 "BEGIN_MAP" { return (R_BEGIN_MAP); } 81 "END_MAP" { return (R_END_MAP); } 82 "INVALID" { return (R_INVALID); } 83 "ILSEQ" { return (R_ILSEQ); } 84 "OOB_MODE" { return (R_OOB_MODE); } 85 "ROWCOL" { return (R_ROWCOL); } 86 87 \"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\' { 88 size_t len; 89 90 len = strlen(yytext); 91 yylval.s_value = malloc(len - 1); 92 strlcpy(yylval.s_value, yytext + 1, len - 1); 93 return (L_STRING); 94 } 95 [^ =/\-0-9\t\n][^ \t\n]* { 96 yylval.s_value = strdup(yytext); 97 return (L_STRING); 98 } 99 100 %% 101 102 #ifndef yywrap 103 int 104 yywrap(void) 105 { 106 107 return (1); 108 } 109 #endif 110