xref: /freebsd/usr.bin/ar/acplex.l (revision 0e33efe4e4b5d24e2d416938af8bc6e6e4160ec8)
1 %{
2 /*-
3  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4  *
5  * Copyright (c) 2008 Kai Wang
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  *    in this position and unchanged.
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(S) ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <err.h>
34 #include <errno.h>
35 #include <stdio.h>
36 #include <string.h>
37 #include <sysexits.h>
38 
39 #include "y.tab.h"
40 
41 int lineno = 1;
42 
43 int	yylex(void);
44 
45 #define	YY_DECL	int yylex(void)
46 
47 %}
48 
49 %option nounput
50 %option noinput
51 %option noyywrap
52 
53 %%
54 
55 ADDLIB|addlib		{ return (ADDLIB); }
56 ADDMOD|addmod		{ return (ADDMOD); }
57 CLEAR|clear		{ return (CLEAR); }
58 CREATE|create		{ return (CREATE); }
59 DELETE|delete		{ return (DELETE); }
60 DIRECTORY|directory	{ return (DIRECTORY); }
61 END|end			{ return (END); }
62 EXTRACT|extract		{ return (EXTRACT); }
63 LIST|list		{ return (LIST); }
64 OPEN|open		{ return (OPEN); }
65 REPLACE|replace		{ return (REPLACE); }
66 VERBOSE|verbose		{ return (VERBOSE); }
67 SAVE|save		{ return (SAVE); }
68 "("			{ return (LP); }
69 ")"			{ return (RP); }
70 ","			{ return (COMMA); }
71 
72 [-_A-Za-z0-9/:$.\\]+	{
73 	yylval.str = strdup(yytext);
74 	if (yylval.str == NULL)
75 		errc(EX_SOFTWARE, errno, "strdup failed");
76 	return (FNAME);
77 }
78 
79 [ \t]			/* whitespace */
80 "*".*			/* comment */
81 ";".*			/* comment */
82 "+\n"			{ lineno++; /* '+' is line continuation char */ }
83 "\n"			{ lineno++; return (EOL); }
84