string-private.h

Go to the documentation of this file.
00001 /*
00002   Copyright 1999-2020 ImageMagick Studio LLC, a non-profit organization
00003   dedicated to making software imaging solutions freely available.
00004 
00005   You may not use this file except in compliance with the License.  You may
00006   obtain a copy of the License at
00007 
00008     https://imagemagick.org/script/license.php
00009 
00010   Unless required by applicable law or agreed to in writing, software
00011   distributed under the License is distributed on an "AS IS" BASIS,
00012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013   See the License for the specific language governing permissions and
00014   limitations under the License.
00015 
00016   MagickCore private string methods.
00017 */
00018 #ifndef MAGICKCORE_STRING_PRIVATE_H
00019 #define MAGICKCORE_STRING_PRIVATE_H
00020 
00021 #include <string.h>
00022 #include "magick/locale_.h"
00023 
00024 #if defined(__cplusplus) || defined(c_plusplus)
00025 extern "C" {
00026 #endif
00027 
00028 static inline double SiPrefixToDoubleInterval(const char *string,
00029   const double interval)
00030 {
00031   char
00032     *q;
00033 
00034   double
00035     value;
00036 
00037   value=InterpretSiPrefixValue(string,&q);
00038   if (*q == '%')
00039     value*=interval/100.0;
00040   return(value);
00041 }
00042 
00043 static inline const char *StringLocateSubstring(const char *haystack,
00044   const char *needle)
00045 {
00046 #if defined(MAGICKCORE_HAVE_STRCASESTR)
00047   return(strcasestr(haystack,needle));
00048 #else
00049   {
00050     size_t
00051       length_needle,
00052       length_haystack;
00053 
00054     register ssize_t
00055       i;
00056 
00057     if (!haystack || !needle)
00058       return(NULL);
00059     length_needle=strlen(needle);
00060     length_haystack=strlen(haystack)-length_needle+1;
00061     for (i=0; i < length_haystack; i++)
00062     {
00063       register size_t
00064         j;
00065 
00066       for (j=0; j < length_needle; j++)
00067       {
00068         unsigned char c1 = haystack[i+j];
00069         unsigned char c2 = needle[j];
00070         if (toupper(c1) != toupper(c2))
00071           goto next;
00072       }
00073       return((char *) haystack+i);
00074       next:
00075        ;
00076     }
00077     return((char *) NULL);
00078   }
00079 #endif
00080 }
00081 
00082 static inline double StringToDouble(const char *magick_restrict string,
00083   char **magick_restrict sentinal)
00084 {
00085   return(InterpretLocaleValue(string,sentinal));
00086 }
00087 
00088 static inline double StringToDoubleInterval(const char *string,
00089   const double interval)
00090 {
00091   char
00092     *q;
00093 
00094   double
00095     value;
00096 
00097   value=InterpretLocaleValue(string,&q);
00098   if (*q == '%')
00099     value*=interval/100.0;
00100   return(value);
00101 }
00102 
00103 static inline int StringToInteger(const char *magick_restrict value)
00104 {
00105   return((int) strtol(value,(char **) NULL,10));
00106 }
00107 
00108 static inline long StringToLong(const char *magick_restrict value)
00109 {
00110   return(strtol(value,(char **) NULL,10));
00111 }
00112 
00113 static inline size_t StringToSizeType(const char *string,const double interval)
00114 {
00115   double
00116     value;
00117 
00118   value=SiPrefixToDoubleInterval(string,interval);
00119   if (value >= (double) MagickULLConstant(~0))
00120     return(~0UL);
00121   return((size_t) value);
00122 }
00123 
00124 static inline unsigned long StringToUnsignedLong(
00125   const char *magick_restrict value)
00126 {
00127   return(strtoul(value,(char **) NULL,10));
00128 }
00129 
00130 #if defined(__cplusplus) || defined(c_plusplus)
00131 }
00132 #endif
00133 
00134 #endif

Generated on 20 Apr 2020 for MagickCore by  doxygen 1.6.1