MagickCore 6.9.12-98
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string-private.h
1/*
2 Copyright 1999 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)
25extern "C" {
26#endif
27
28static 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
43static inline const 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 size_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 size_t
64 j;
65
66 for (j=0; j < length_needle; j++)
67 {
68 unsigned char c1 = (unsigned char) haystack[i+j];
69 unsigned char c2 = (unsigned char) needle[j];
70 if (toupper((int) c1) != toupper((int) c2))
71 goto next;
72 }
73 return((char *) haystack+i);
74 next:
75 ;
76 }
77 return((char *) NULL);
78 }
79#endif
80}
81
82static inline double StringToDouble(const char *magick_restrict string,
83 char **magick_restrict sentinal)
84{
85 return(InterpretLocaleValue(string,sentinal));
86}
87
88static 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
103static 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
110static 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
117static inline size_t StringToSizeType(const char *string,const double interval)
118{
119 double
120 value;
121
122 value=SiPrefixToDoubleInterval(string,interval);
123 if (value >= (double) MagickULLConstant(~0))
124 return(~0UL);
125 return((size_t) value);
126}
127
128static inline unsigned long StringToUnsignedLong(
129 const char *magick_restrict value)
130{
131 if (value == (const char *) NULL)
132 return(0);
133 return(strtoul(value,(char **) NULL,10));
134}
135
136#if defined(__cplusplus) || defined(c_plusplus)
137}
138#endif
139
140#endif