MagickCore  7.1.0
Convert, Edit, Or Compose Bitmap Images
string-private.h
1 /*
2  Copyright @ 2003 ImageMagick Studio LLC, a non-profit organization
3  dedicated to making software imaging solutions freely available.
4 
5  You may not use this file except in compliance with the License. You may
6  obtain a copy of the License at
7 
8  https://imagemagick.org/script/license.php
9 
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15 
16  MagickCore private string methods.
17 */
18 #ifndef MAGICKCORE_STRING_PRIVATE_H
19 #define MAGICKCORE_STRING_PRIVATE_H
20 
21 #include <string.h>
22 #include "MagickCore/locale_.h"
23 
24 #if defined(__cplusplus) || defined(c_plusplus)
25 extern "C" {
26 #endif
27 
28 static inline double SiPrefixToDoubleInterval(const char *string,
29  const double interval)
30 {
31  char
32  *q;
33 
34  double
35  value;
36 
37  value=InterpretSiPrefixValue(string,&q);
38  if (*q == '%')
39  value*=interval/100.0;
40  return(value);
41 }
42 
43 static inline double StringToDouble(const char *magick_restrict string,
44  char *magick_restrict *sentinal)
45 {
46  return(InterpretLocaleValue(string,sentinal));
47 }
48 
49 static inline const char *StringLocateSubstring(const char *haystack,
50  const char *needle)
51 {
52 #if defined(MAGICKCORE_HAVE_STRCASESTR)
53  return(strcasestr(haystack,needle));
54 #else
55  {
56  size_t
57  length_needle,
58  length_haystack;
59 
60  size_t
61  i;
62 
63  if (!haystack || !needle)
64  return(NULL);
65  length_needle=strlen(needle);
66  length_haystack=strlen(haystack)-length_needle+1;
67  for (i=0; i < length_haystack; i++)
68  {
69  size_t
70  j;
71 
72  for (j=0; j < length_needle; j++)
73  {
74  unsigned char c1 = (unsigned char) haystack[i+j];
75  unsigned char c2 = (unsigned char) needle[j];
76  if (toupper((int) c1) != toupper((int) c2))
77  goto next;
78  }
79  return((char *) haystack+i);
80  next:
81  ;
82  }
83  return((char *) NULL);
84  }
85 #endif
86 }
87 
88 static inline double StringToDoubleInterval(const char *string,
89  const double interval)
90 {
91  char
92  *q;
93 
94  double
95  value;
96 
97  value=InterpretLocaleValue(string,&q);
98  if (*q == '%')
99  value*=interval/100.0;
100  return(value);
101 }
102 
103 static inline int StringToInteger(const char *magick_restrict value)
104 {
105  if (value == (const char *) NULL)
106  return(0);
107  return((int) strtol(value,(char **) NULL,10));
108 }
109 
110 static inline long StringToLong(const char *magick_restrict value)
111 {
112  if (value == (const char *) NULL)
113  return(0);
114  return(strtol(value,(char **) NULL,10));
115 }
116 
117 static inline MagickSizeType StringToMagickSizeType(const char *string,
118  const double interval)
119 {
120  double
121  value;
122 
123  value=SiPrefixToDoubleInterval(string,interval);
124  if (value >= (double) MagickULLConstant(~0))
125  return(MagickULLConstant(~0));
126  return((MagickSizeType) value);
127 }
128 
129 static inline size_t StringToSizeType(const char *string,const double interval)
130 {
131  double
132  value;
133 
134  value=SiPrefixToDoubleInterval(string,interval);
135  if (value >= (double) MagickULLConstant(~0))
136  return(~0UL);
137  return((size_t) value);
138 }
139 
140 static inline unsigned long StringToUnsignedLong(
141  const char *magick_restrict value)
142 {
143  if (value == (const char *) NULL)
144  return(0);
145  return(strtoul(value,(char **) NULL,10));
146 }
147 
148 #if defined(__cplusplus) || defined(c_plusplus)
149 }
150 #endif
151 
152 #endif