SphinxBase 5prealpha
case.c
1/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
2/* ====================================================================
3 * Copyright (c) 1999-2004 Carnegie Mellon University. All rights
4 * reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * This work was supported in part by funding from the Defense Advanced
19 * Research Projects Agency and the National Science Foundation of the
20 * United States of America, and the CMU Sphinx Speech Consortium.
21 *
22 * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
23 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * ====================================================================
35 *
36 */
37/*
38 * case.c -- Upper/lower case conversion routines
39 *
40 * **********************************************
41 * CMU ARPA Speech Project
42 *
43 * Copyright (c) 1999 Carnegie Mellon University.
44 * ALL RIGHTS RESERVED.
45 * **********************************************
46 *
47 * HISTORY
48 * $Log: case.c,v $
49 * Revision 1.7 2005/06/22 02:58:54 arthchan2003
50 * Added keyword
51 *
52 * Revision 1.3 2005/03/30 01:22:48 archan
53 * Fixed mistakes in last updates. Add
54 *
55 *
56 * 18-Jun-97 M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon
57 * Added strcmp_nocase. Moved UPPER_CASE and LOWER_CASE definitions to .h.
58 *
59 * 16-Feb-97 M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon
60 * Created.
61 */
62
63
64#include <stdlib.h>
65#include <assert.h>
66
67#include "sphinxbase/case.h"
68#include "sphinxbase/err.h"
69
70
71void
72lcase(register char *cp)
73{
74 if (cp) {
75 while (*cp) {
76 *cp = LOWER_CASE(*cp);
77 cp++;
78 }
79 }
80}
81
82void
83ucase(register char *cp)
84{
85 if (cp) {
86 while (*cp) {
87 *cp = UPPER_CASE(*cp);
88 cp++;
89 }
90 }
91}
92
93int32
94strcmp_nocase(const char *str1, const char *str2)
95{
96 char c1, c2;
97
98 if (str1 == str2)
99 return 0;
100 if (str1 && str2) {
101 for (;;) {
102 c1 = *(str1++);
103 c1 = UPPER_CASE(c1);
104 c2 = *(str2++);
105 c2 = UPPER_CASE(c2);
106 if (c1 != c2)
107 return (c1 - c2);
108 if (c1 == '\0')
109 return 0;
110 }
111 }
112 else
113 return (str1 == NULL) ? -1 : 1;
114
115 return 0;
116}
117
118int32
119strncmp_nocase(const char *str1, const char *str2, size_t len)
120{
121 char c1, c2;
122
123 if (str1 && str2) {
124 size_t n;
125
126 for (n = 0; n < len; ++n) {
127 c1 = *(str1++);
128 c1 = UPPER_CASE(c1);
129 c2 = *(str2++);
130 c2 = UPPER_CASE(c2);
131 if (c1 != c2)
132 return (c1 - c2);
133 if (c1 == '\0')
134 return 0;
135 }
136 }
137 else
138 return (str1 == NULL) ? -1 : 1;
139
140 return 0;
141}
Locale-independent implementation of case swapping operation.
#define UPPER_CASE(c)
Return upper case form for c.
Definition: case.h:92
#define LOWER_CASE(c)
Return lower case form for c.
Definition: case.h:97
SPHINXBASE_EXPORT void ucase(char *str)
Convert str to all upper case.
SPHINXBASE_EXPORT void lcase(char *str)
Convert str to all lower case.
SPHINXBASE_EXPORT int32 strcmp_nocase(const char *str1, const char *str2)
(FIXME! The implementation is incorrect!) Case insensitive string compare.
Definition: case.c:94
SPHINXBASE_EXPORT int32 strncmp_nocase(const char *str1, const char *str2, size_t len)
Like strcmp_nocase() but with a maximum length.
Definition: case.c:119
Implementation of logging routines.