1 /* $NetBSD: msgscan.l,v 1.4 2003/07/17 08:33:05 lukem Exp $ */
4 * Copyright 1997 Piermont Information Systems Inc.
7 * Written by Philip A. Nelson for Piermont Information Systems Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software develooped for the NetBSD Project by
20 * Piermont Information Systems Inc.
21 * 4. The name of Piermont Information Systems Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
25 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
35 * THE POSSIBILITY OF SUCH DAMAGE.
40 /* scan.l: scanner description for message compiler. */
42 #include <sys/cdefs.h>
44 #if defined(__RCSID) && !defined(lint)
45 __RCSID("$NetBSD: msgscan.l,v 1.4 2003/07/17 08:33:05 lukem Exp $");
54 static int level; /* For nested comments. */
65 [ \t]+ { /* ignore spaces and tabs */ }
69 ";" { return (int)yytext[0]; }
71 message { return MESSAGE; }
73 [a-zA-Z][a-zA-Z0-9_]* {
74 yylval.s_value = strdup(yytext);
78 "/*" { level = 1; BEGIN COMMENT; }
80 <COMMENT>"/*" { level++; }
82 <COMMENT>"*/" { if (level-- == 1) BEGIN 0; }
84 <COMMENT>"\n" { line_no++; }
86 <COMMENT><<EOF>> { yyerror ("EOF inside a comment."); exit (1); }
88 <COMMENT>. {/* eat character */}
90 "{" { level = 1; BEGIN BRACE; }
92 <BRACE>"\\{" { buff_add_ch('{'); }
94 <BRACE>"\\}" { buff_add_ch('}'); }
96 <BRACE>"{" { buff_add_ch(yytext[0]); level++; }
98 <BRACE>"}" { if (level-- == 1) {
100 yylval.s_value = buff_copy();
103 buff_add_ch (yytext[0]);
106 <BRACE>"\n" { buff_add_ch (yytext[0]); line_no++; }
108 <BRACE>. { buff_add_ch (yytext[0]); }
112 yyerror ("illegal character: ^%c",yytext[0] + '@');
115 yyerror ("illegal character: \\%3d", (int) yytext[0]);
117 yyerror ("illegal character: %s",yytext);
119 /* To quiet the compiler */
132 while ( (val = yylex()) != 0 )
133 printf ("val = %d\n yytext = %s\n", val, yytext);