SphinxBase  5prealpha
case.c
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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 
71 void
72 lcase(register char *cp)
73 {
74  if (cp) {
75  while (*cp) {
76  *cp = LOWER_CASE(*cp);
77  cp++;
78  }
79  }
80 }
81 
82 void
83 ucase(register char *cp)
84 {
85  if (cp) {
86  while (*cp) {
87  *cp = UPPER_CASE(*cp);
88  cp++;
89  }
90  }
91 }
92 
93 int32
94 strcmp_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 
118 int32
119 strncmp_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 }
#define LOWER_CASE(c)
Return lower case form for c.
Definition: case.h:97
#define UPPER_CASE(c)
Return upper case form for c.
Definition: case.h:92
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.
SPHINXBASE_EXPORT void lcase(char *str)
Convert str to all lower case.
SPHINXBASE_EXPORT void ucase(char *str)
Convert str to all upper case.
Locale-independent implementation of case swapping operation.