1 %{ 2 /*- 3 * DEVD (Device action daemon) 4 * 5 * Copyright (c) 2002 M. Warner Losh <imp@freebsd.org>. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sbin/devd/token.l,v 1.7 2008/03/21 20:38:28 imp Exp $ 30 */ 31 32 #pragma GCC diagnostic ignored "-Wsign-compare" 33 #include <ctype.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <syslog.h> 37 #include "devd.h" 38 #include "y.tab.h" 39 40 int lineno = 1; 41 42 static void 43 update_lineno(const char *cp) 44 { 45 while (*cp) 46 if (*cp++ == '\n') 47 lineno++; 48 } 49 50 %} 51 52 %option nounput 53 %option noinput 54 55 %% 56 57 [ \t]+ ; 58 \n lineno++; 59 ; { return SEMICOLON; } 60 #.*$ ; 61 \/\/.*$ ; 62 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); } 63 \{ { return BEGINBLOCK; } 64 \} { return ENDBLOCK; } 65 [0-9]+ { yylval.i = atoi(yytext); return NUMBER; } 66 \"[^"]+\" { 67 int len = strlen(yytext) - 2; 68 char *walker; 69 int i; 70 update_lineno(yytext); 71 if ((yylval.str = (char *) malloc(len + 1)) == NULL) 72 goto out; 73 walker = yylval.str; 74 for (i = 1; i <= len; i++) { 75 if (yytext[i] == '\\' && 76 yytext[i + 1] == '\n') { 77 i += 2; 78 while(isspace(yytext[i])) 79 i++; 80 } 81 *walker++ = yytext[i]; 82 } 83 *walker++ = '\0'; 84 out:; 85 return STRING; 86 } 87 88 89 options { return OPTIONS; } 90 set { return SET; } 91 directory { return DIRECTORY; } 92 pid-file { return PID_FILE; } 93 attach { return ATTACH; } 94 detach { return DETACH; } 95 device-name { return DEVICE_NAME; } 96 media-type { return MEDIA_TYPE; } 97 class { return CLASS; } 98 subdevice { return SUBDEVICE; } 99 action { return ACTION; } 100 match { return MATCH; } 101 nomatch { return NOMATCH; } 102 notify { return NOTIFY; } 103 [A-Za-z][A-Za-z0-9_-]* { 104 yylval.str = strdup(yytext); 105 return ID; 106 } 107 %% 108 109 void 110 yyerror(const char *s) 111 { 112 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s); 113 } 114