lex.l revision 219019 
1/* $FreeBSD: head/usr.bin/mkcsmapper/lex.l 219019 2011-02-25 00:04:39Z gabor $ */
2/* $NetBSD: lex.l,v 1.4 2006/02/09 22:03:15 dogcow Exp $	*/
3
4%{
5/*-
6 * Copyright (c)2003 Citrus Project,
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
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 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32#include <sys/endian.h>
33
34#include <assert.h>
35#include <errno.h>
36#include <limits.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <string.h>
40
41#include "ldef.h"
42#include "yacc.h"
43
44int line_number = 1;
45%}
46%option	nounput
47
48%x	COMMENT
49
50%%
51
52[ \t]+	{ }
53#.*[\n]|"//".*[\n]|[\n]	{ line_number++; return (R_LN); }
54
55"/*"		{ BEGIN COMMENT; }
56<COMMENT>"*/"	{ BEGIN 0; }
57<COMMENT>[\n]	{ line_number++; }
58<COMMENT>.	{ }
59<COMMENT><<EOF>>	{
60		yyerror("unexpected file end (unterminate comment)\n");
61		exit(1);
62	}
63
64"="|"/"|"-"	{ return ((int)yytext[0]); }
65
66([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
67		yylval.i_value = strtoul(yytext, NULL, 0);
68		return (L_IMM);
69	}
70
71"TYPE"		{ return (R_TYPE); }
72"NAME"		{ return (R_NAME); }
73"SRC_ZONE"	{ return (R_SRC_ZONE); }
74"DST_INVALID"	{ return (R_DST_INVALID); }
75"DST_ILSEQ"	{ return (R_DST_ILSEQ); }
76"DST_UNIT_BITS"	{ return (R_DST_UNIT_BITS); }
77"BEGIN_MAP"	{ return (R_BEGIN_MAP); }
78"END_MAP"	{ return (R_END_MAP); }
79"INVALID"	{ return (R_INVALID); }
80"ILSEQ"		{ return (R_ILSEQ); }
81"OOB_MODE"	{ return (R_OOB_MODE); }
82"ROWCOL"	{ return (R_ROWCOL); }
83
84\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
85		size_t len;
86
87		len = strlen(yytext);
88		yylval.s_value = malloc(len - 1);
89		strlcpy(yylval.s_value, yytext + 1, len - 1);
90		return (L_STRING);
91	}
92[^ =/\-0-9\t\n][^ \t\n]*	{
93		yylval.s_value = strdup(yytext);
94		return (L_STRING);
95	}
96
97%%
98
99#ifndef yywrap
100int
101yywrap(void)
102{
103
104	return (1);
105}
106#endif
107