xref: /freebsd/usr.bin/mkcsmapper/lex.l (revision a0b9e2e854027e6ff61fb075a1309dbc71c42b54)
1 /* $FreeBSD$ */
2 /* $NetBSD: lex.l,v 1.4 2006/02/09 22:03:15 dogcow Exp $	*/
3 
4 %{
5 /*-
6  * SPDX-License-Identifier: BSD-2-Clause
7  *
8  * Copyright (c)2003 Citrus Project,
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include <sys/cdefs.h>
34 #include <sys/endian.h>
35 
36 #include <assert.h>
37 #include <errno.h>
38 #include <limits.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 
43 #include "ldef.h"
44 #include "yacc.h"
45 
46 #define YY_DECL int yylex(void)
47 
48 int linenumber = 1;
49 %}
50 %option	noinput
51 %option	nounput
52 
53 %x	COMMENT
54 
55 %%
56 
57 [ \t]+	{ }
58 #.*[\n]|"//".*[\n]|[\n]	{ linenumber++; return (R_LN); }
59 
60 "/*"		{ BEGIN COMMENT; }
61 <COMMENT>"*/"	{ BEGIN 0; }
62 <COMMENT>[\n]	{ linenumber++; }
63 <COMMENT>.	{ }
64 <COMMENT><<EOF>>	{
65 		yyerror("unexpected file end (unterminated comment)\n");
66 		exit(1);
67 	}
68 
69 "="|"/"|"-"	{ return ((int)yytext[0]); }
70 
71 ([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
72 		yylval.i_value = strtoul(yytext, NULL, 0);
73 		return (L_IMM);
74 	}
75 
76 "TYPE"		{ return (R_TYPE); }
77 "NAME"		{ return (R_NAME); }
78 "SRC_ZONE"	{ return (R_SRC_ZONE); }
79 "DST_INVALID"	{ return (R_DST_INVALID); }
80 "DST_ILSEQ"	{ return (R_DST_ILSEQ); }
81 "DST_UNIT_BITS"	{ return (R_DST_UNIT_BITS); }
82 "BEGIN_MAP"	{ return (R_BEGIN_MAP); }
83 "END_MAP"	{ return (R_END_MAP); }
84 "INVALID"	{ return (R_INVALID); }
85 "ILSEQ"		{ return (R_ILSEQ); }
86 "OOB_MODE"	{ return (R_OOB_MODE); }
87 "ROWCOL"	{ return (R_ROWCOL); }
88 
89 \"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
90 		size_t len;
91 
92 		len = strlen(yytext);
93 		yylval.s_value = malloc(len - 1);
94 		strlcpy(yylval.s_value, yytext + 1, len - 1);
95 		return (L_STRING);
96 	}
97 [^ =/\-0-9\t\n][^ \t\n]*	{
98 		yylval.s_value = strdup(yytext);
99 		return (L_STRING);
100 	}
101 
102 %%
103 
104 #ifndef yywrap
105 int
106 yywrap(void)
107 {
108 
109 	return (1);
110 }
111 #endif
112