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 #include <ctype.h> 33 #include <stdlib.h> 34 #include <string.h> 35 #include <syslog.h> 36 #include "devd.h" 37 #include "y.tab.h" 38 39 int lineno = 1; 40 #define YY_NO_INPUT 41 #define YY_NO_UNPUT 42 43 static void 44 update_lineno(const char *cp) 45 { 46 while (*cp) 47 if (*cp++ == '\n') 48 lineno++; 49 } 50 51 %} 52 53 %% 54 55 [ \t]+ ; 56 \n lineno++; 57 ; { return SEMICOLON; } 58 #.*$ ; 59 \/\/.*$ ; 60 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); } 61 \{ { return BEGINBLOCK; } 62 \} { return ENDBLOCK; } 63 [0-9]+ { yylval.i = atoi(yytext); return NUMBER; } 64 \"[^"]+\" { 65 int len = strlen(yytext) - 2; 66 char *walker; 67 int i; 68 update_lineno(yytext); 69 if ((yylval.str = (char *) malloc(len + 1)) == NULL) 70 goto out; 71 walker = yylval.str; 72 for (i = 1; i <= len; i++) { 73 if (yytext[i] == '\\' && 74 yytext[i + 1] == '\n') { 75 i += 2; 76 while(isspace(yytext[i])) 77 i++; 78 } 79 *walker++ = yytext[i]; 80 } 81 *walker++ = '\0'; 82 out:; 83 return STRING; 84 } 85 86 87 options { return OPTIONS; } 88 set { return SET; } 89 directory { return DIRECTORY; } 90 pid-file { return PID_FILE; } 91 attach { return ATTACH; } 92 detach { return DETACH; } 93 device-name { return DEVICE_NAME; } 94 media-type { return MEDIA_TYPE; } 95 class { return CLASS; } 96 subdevice { return SUBDEVICE; } 97 action { return ACTION; } 98 match { return MATCH; } 99 nomatch { return NOMATCH; } 100 notify { return NOTIFY; } 101 [A-Za-z][A-Za-z0-9_-]* { 102 yylval.str = strdup(yytext); 103 return ID; 104 } 105 %% 106 107 void 108 yyerror(const char *s) 109 { 110 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s); 111 } 112