MagickCore 7.1.1
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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 "MagickCore/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 double StringToDouble(const char *magick_restrict string,
44 char *magick_restrict *sentinel)
45{
46 return(InterpretLocaleValue(string,sentinel));
47}
48
49static 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
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 MagickOffsetType StringToMagickOffsetType(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((MagickOffsetType) MagickULLConstant(~0));
126 return((MagickOffsetType) value);
127}
128
129static inline MagickSizeType StringToMagickSizeType(const char *string,
130 const double interval)
131{
132 double
133 value;
134
135 value=SiPrefixToDoubleInterval(string,interval);
136 if (value >= (double) MagickULLConstant(~0))
137 return(MagickULLConstant(~0));
138 return((MagickSizeType) value);
139}
140
141static inline size_t StringToSizeType(const char *string,const double interval)
142{
143 double
144 value;
145
146 value=SiPrefixToDoubleInterval(string,interval);
147 if (value >= (double) MagickULLConstant(~0))
148 return(~0UL);
149 return((size_t) value);
150}
151
152static inline unsigned long StringToUnsignedLong(
153 const char *magick_restrict value)
154{
155 if (value == (const char *) NULL)
156 return(0);
157 return(strtoul(value,(char **) NULL,10));
158}
159
160#if defined(__cplusplus) || defined(c_plusplus)
161}
162#endif
163
164#endif