lex.l revision 250984 
1/* $FreeBSD: head/usr.bin/mkcsmapper/lex.l 250984 2013-05-25 15:36:15Z ed $ */
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 linenumber = 1;
45%}
46%option	noinput
47%option	nounput
48
49%x	COMMENT
50
51%%
52
53[ \t]+	{ }
54#.*[\n]|"//".*[\n]|[\n]	{ linenumber++; return (R_LN); }
55
56"/*"		{ BEGIN COMMENT; }
57<COMMENT>"*/"	{ BEGIN 0; }
58<COMMENT>[\n]	{ linenumber++; }
59<COMMENT>.	{ }
60<COMMENT><<EOF>>	{
61		yyerror("unexpected file end (unterminated comment)\n");
62		exit(1);
63	}
64
65"="|"/"|"-"	{ return ((int)yytext[0]); }
66
67([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
68		yylval.i_value = strtoul(yytext, NULL, 0);
69		return (L_IMM);
70	}
71
72"TYPE"		{ return (R_TYPE); }
73"NAME"		{ return (R_NAME); }
74"SRC_ZONE"	{ return (R_SRC_ZONE); }
75"DST_INVALID"	{ return (R_DST_INVALID); }
76"DST_ILSEQ"	{ return (R_DST_ILSEQ); }
77"DST_UNIT_BITS"	{ return (R_DST_UNIT_BITS); }
78"BEGIN_MAP"	{ return (R_BEGIN_MAP); }
79"END_MAP"	{ return (R_END_MAP); }
80"INVALID"	{ return (R_INVALID); }
81"ILSEQ"		{ return (R_ILSEQ); }
82"OOB_MODE"	{ return (R_OOB_MODE); }
83"ROWCOL"	{ return (R_ROWCOL); }
84
85\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
86		size_t len;
87
88		len = strlen(yytext);
89		yylval.s_value = malloc(len - 1);
90		strlcpy(yylval.s_value, yytext + 1, len - 1);
91		return (L_STRING);
92	}
93[^ =/\-0-9\t\n][^ \t\n]*	{
94		yylval.s_value = strdup(yytext);
95		return (L_STRING);
96	}
97
98%%
99
100#ifndef yywrap
101int
102yywrap(void)
103{
104
105	return (1);
106}
107#endif
108