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 int 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 100 int 101 yywrap(void) 102 { 103 104 return (1); 105 } 106 #endif 107