summaryrefslogtreecommitdiffstats
path: root/media/sphinxbase/src/libsphinxbase/util/case.c
blob: f9e24ac069c8f53547c16ef593af9e548664061d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* ====================================================================
 * Copyright (c) 1999-2004 Carnegie Mellon University.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * This work was supported in part by funding from the Defense Advanced 
 * Research Projects Agency and the National Science Foundation of the 
 * United States of America, and the CMU Sphinx Speech Consortium.
 *
 * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND 
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
 * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ====================================================================
 *
 */
/*
 * case.c -- Upper/lower case conversion routines
 *
 * **********************************************
 * CMU ARPA Speech Project
 *
 * Copyright (c) 1999 Carnegie Mellon University.
 * ALL RIGHTS RESERVED.
 * **********************************************
 * 
 * HISTORY
 * $Log: case.c,v $
 * Revision 1.7  2005/06/22 02:58:54  arthchan2003
 * Added  keyword
 *
 * Revision 1.3  2005/03/30 01:22:48  archan
 * Fixed mistakes in last updates. Add
 *
 * 
 * 18-Jun-97	M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon
 * 		Added strcmp_nocase.  Moved UPPER_CASE and LOWER_CASE definitions to .h.
 * 
 * 16-Feb-97	M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon
 * 		Created.
 */


#include <stdlib.h>
#include <assert.h>

#include "sphinxbase/case.h"
#include "sphinxbase/err.h"


void
lcase(register char *cp)
{
    if (cp) {
        while (*cp) {
            *cp = LOWER_CASE(*cp);
            cp++;
        }
    }
}

void
ucase(register char *cp)
{
    if (cp) {
        while (*cp) {
            *cp = UPPER_CASE(*cp);
            cp++;
        }
    }
}

int32
strcmp_nocase(const char *str1, const char *str2)
{
    char c1, c2;

    if (str1 == str2)
        return 0;
    if (str1 && str2) {
        for (;;) {
            c1 = *(str1++);
            c1 = UPPER_CASE(c1);
            c2 = *(str2++);
            c2 = UPPER_CASE(c2);
            if (c1 != c2)
                return (c1 - c2);
            if (c1 == '\0')
                return 0;
        }
    }
    else
        return (str1 == NULL) ? -1 : 1;

    return 0;
}

int32
strncmp_nocase(const char *str1, const char *str2, size_t len)
{
    char c1, c2;

    if (str1 && str2) {
        size_t n;

        for (n = 0; n < len; ++n) {
            c1 = *(str1++);
            c1 = UPPER_CASE(c1);
            c2 = *(str2++);
            c2 = UPPER_CASE(c2);
            if (c1 != c2)
                return (c1 - c2);
            if (c1 == '\0')
                return 0;
        }
    }
    else
        return (str1 == NULL) ? -1 : 1;

    return 0;
}