MagickCore  6.9.10
Convert, Edit, Or Compose Bitmap Images
string-private.h
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1 /*
2  Copyright 1999-2020 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 "magick/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 char *StringLocateSubstring(const char *haystack,
44  const char *needle)
45 {
46 #if defined(MAGICKCORE_HAVE_STRCASESTR)
47  return(strcasestr(haystack,needle));
48 #else
49  {
50  size_t
51  length_needle,
52  length_haystack;
53 
54  register ssize_t
55  i;
56 
57  if (!haystack || !needle)
58  return(NULL);
59  length_needle=strlen(needle);
60  length_haystack=strlen(haystack)-length_needle+1;
61  for (i=0; i < length_haystack; i++)
62  {
63  register size_t
64  j;
65 
66  for (j=0; j < length_needle; j++)
67  {
68  unsigned char c1 = haystack[i+j];
69  unsigned char c2 = needle[j];
70  if (toupper(c1) != toupper(c2))
71  goto next;
72  }
73  return((char *) haystack+i);
74  next:
75  ;
76  }
77  return((char *) NULL);
78  }
79 #endif
80 }
81 
82 static inline double StringToDouble(const char *magick_restrict string,
83  char **magick_restrict sentinal)
84 {
85  return(InterpretLocaleValue(string,sentinal));
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  return((int) strtol(value,(char **) NULL,10));
106 }
107 
108 static inline long StringToLong(const char *magick_restrict value)
109 {
110  return(strtol(value,(char **) NULL,10));
111 }
112 
113 static inline size_t StringToSizeType(const char *string,const double interval)
114 {
115  double
116  value;
117 
118  value=SiPrefixToDoubleInterval(string,interval);
119  if (value >= (double) MagickULLConstant(~0))
120  return(~0UL);
121  return((size_t) value);
122 }
123 
124 static inline unsigned long StringToUnsignedLong(
125  const char *magick_restrict value)
126 {
127  return(strtoul(value,(char **) NULL,10));
128 }
129 
130 #if defined(__cplusplus) || defined(c_plusplus)
131 }
132 #endif
133 
134 #endif
#define magick_restrict
Definition: MagickCore.h:41
MagickExport double InterpretSiPrefixValue(const char *magick_restrict string, char **magick_restrict sentinal)
Definition: string.c:1316
static size_t StringToSizeType(const char *string, const double interval)
Definition: string-private.h:113
static unsigned long StringToUnsignedLong(const char *magick_restrict value)
Definition: string-private.h:124
#define MagickULLConstant(c)
Definition: magick-type.h:39
static int StringToInteger(const char *magick_restrict value)
Definition: string-private.h:103
static double StringToDouble(const char *magick_restrict string, char **magick_restrict sentinal)
Definition: string-private.h:82
static long StringToLong(const char *magick_restrict value)
Definition: string-private.h:108
static double SiPrefixToDoubleInterval(const char *string, const double interval)
Definition: string-private.h:28
static double StringToDoubleInterval(const char *string, const double interval)
Definition: string-private.h:88
static char * StringLocateSubstring(const char *haystack, const char *needle)
Definition: string-private.h:43
MagickExport double InterpretLocaleValue(const char *magick_restrict string, char **magick_restrict sentinal)
Definition: locale.c:1000