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/*
* Diff Match and Patch
* Copyright 2018 The diff-match-patch Authors.
* https://github.com/google/diff-match-patch
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: fraser@google.com (Neil Fraser)
* ObjC port: jan@geheimwerk.de (Jan Weiß)
*/
#ifndef _DIFFMATCHPATCHCFUTILITIES_H
#define _DIFFMATCHPATCHCFUTILITIES_H
CFStringRef diff_CFStringCreateFromUnichar(UniChar ch);
CFStringRef diff_CFStringCreateJavaSubstring(CFStringRef s, CFIndex begin, CFIndex end);
CFIndex diff_commonPrefix(CFStringRef text1, CFStringRef text2);
CFIndex diff_commonSuffix(CFStringRef text1, CFStringRef text2);
CFIndex diff_commonOverlap(CFStringRef text1, CFStringRef text2);
CFArrayRef diff_halfMatchCreate(CFStringRef text1, CFStringRef text2, const float diffTimeout);
CFArrayRef diff_halfMatchICreate(CFStringRef longtext, CFStringRef shorttext, CFIndex i);
CFStringRef diff_linesToCharsMungeCFStringCreate(CFStringRef text, CFMutableArrayRef lineArray, CFMutableDictionaryRef lineHash, CFIndex maxLines);
CFIndex diff_cleanupSemanticScore(CFStringRef one, CFStringRef two);
CF_INLINE void diff_CFStringPrepareUniCharBuffer(CFStringRef string, const UniChar **string_chars, UniChar **string_buffer, CFRange string_range) {
*string_chars = CFStringGetCharactersPtr(string);
if (*string_chars == NULL) {
// Fallback in case CFStringGetCharactersPtr() didn’t work.
*string_buffer = malloc(string_range.length * sizeof(UniChar));
CFStringGetCharacters(string, string_range, *string_buffer);
*string_chars = *string_buffer;
}
}
#endif //ifndef _DIFFMATCHPATCHCFUTILITIES_H
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