lex.l revision 238197 
1/* $FreeBSD: head/usr.bin/mkesdb/lex.l 238197 2012-07-07 17:05:55Z eadler $ */
2/* $NetBSD: lex.l,v 1.3 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#include <sys/queue.h>
34#include <sys/types.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
46int line_number = 1;
47%}
48%option	nounput
49
50%x	COMMENT
51
52%%
53
54[ \t]+	{ }
55#.*[\n]|"//".*[\n]|[\n]	{ line_number++; return (R_LN); }
56
57"/*"		{ BEGIN COMMENT; }
58<COMMENT>"*/"	{ BEGIN 0; }
59<COMMENT>[\n]	{ line_number++; }
60<COMMENT>.	{ }
61<COMMENT><<EOF>>	{
62		yyerror("unexpected file end (unterminated comment)\n");
63		exit(1);
64	}
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"NAME"		{ return (R_NAME); }
72"ENCODING"	{ return (R_ENCODING); }
73"VARIABLE"	{ return (R_VARIABLE); }
74"DEFCSID"	{ return (R_DEFCSID); }
75"INVALID"	{ return (R_INVALID); }
76
77\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
78		size_t len;
79
80		len = strlen(yytext);
81		yylval.s_value = malloc(len - 1);
82		strlcpy(yylval.s_value, yytext + 1, len - 1);
83		return (L_STRING);
84	}
85[^ =/\-0-9\t\n][^ \t\n]*	{
86		yylval.s_value = strdup(yytext);
87		return (L_STRING);
88	}
89
90%%
91
92#ifndef yywrap
93int
94yywrap(void)
95{
96
97	return (1);
98}
99#endif
100