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: head/sbin/devd/token.l 250227 2013-05-03 23:51:32Z jkim $ 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 41 static void 42 update_lineno(const char *cp) 43 { 44 while (*cp) 45 if (*cp++ == '\n') 46 lineno++; 47 } 48 49 %} 50 51 %option nounput 52 %option noinput 53 54 %% 55 56 [ \t]+ ; 57 \n lineno++; 58 ; { return SEMICOLON; } 59 #.*$ ; 60 \/\/.*$ ; 61 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); } 62 \{ { return BEGINBLOCK; } 63 \} { return ENDBLOCK; } 64 [0-9]+ { yylval.i = atoi(yytext); return NUMBER; } 65 \"[^"]+\" { 66 int len = strlen(yytext) - 2; 67 char *walker; 68 int i; 69 update_lineno(yytext); 70 if ((yylval.str = (char *) malloc(len + 1)) == NULL) 71 goto out; 72 walker = yylval.str; 73 for (i = 1; i <= len; i++) { 74 if (yytext[i] == '\\' && 75 yytext[i + 1] == '\n') { 76 i += 2; 77 while(isspace(yytext[i])) 78 i++; 79 } 80 *walker++ = yytext[i]; 81 } 82 *walker++ = '\0'; 83 out:; 84 return STRING; 85 } 86 87 88 options { return OPTIONS; } 89 set { return SET; } 90 directory { return DIRECTORY; } 91 pid-file { return PID_FILE; } 92 attach { return ATTACH; } 93 detach { return DETACH; } 94 device-name { return DEVICE_NAME; } 95 media-type { return MEDIA_TYPE; } 96 class { return CLASS; } 97 subdevice { return SUBDEVICE; } 98 action { return ACTION; } 99 match { return MATCH; } 100 nomatch { return NOMATCH; } 101 notify { return NOTIFY; } 102 [A-Za-z][A-Za-z0-9_-]* { 103 yylval.str = strdup(yytext); 104 return ID; 105 } 106 %% 107 108 void 109 yyerror(const char *s) 110 { 111 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s); 112 } 113