1 /* $FreeBSD$ */ 2 /* $NetBSD: lex.l,v 1.3 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 #include <sys/queue.h> 34 #include <sys/types.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 int line_number = 1; 47 %} 48 %option nounput 49 50 %x COMMENT 51 52 %% 53 54 [ \t]+ { } 55 #.*[\n]|"//".*[\n]|[\n] { line_number++; return (R_LN); } 56 57 "/*" { BEGIN COMMENT; } 58 <COMMENT>"*/" { BEGIN 0; } 59 <COMMENT>[\n] { line_number++; } 60 <COMMENT>. { } 61 <COMMENT><<EOF>> { 62 yyerror("unexpected file end (unterminate comment)\n"); 63 exit(1); 64 } 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 "NAME" { return (R_NAME); } 72 "ENCODING" { return (R_ENCODING); } 73 "VARIABLE" { return (R_VARIABLE); } 74 "DEFCSID" { return (R_DEFCSID); } 75 "INVALID" { return (R_INVALID); } 76 77 \"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\' { 78 size_t len; 79 80 len = strlen(yytext); 81 yylval.s_value = malloc(len - 1); 82 strlcpy(yylval.s_value, yytext + 1, len - 1); 83 return (L_STRING); 84 } 85 [^ =/\-0-9\t\n][^ \t\n]* { 86 yylval.s_value = strdup(yytext); 87 return (L_STRING); 88 } 89 90 %% 91 92 #ifndef yywrap 93 int 94 yywrap(void) 95 { 96 97 return (1); 98 } 99 #endif 100