Source/platform/text/TextBoundaries.h - Issue 268363016: Improve the find word boundary performance

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Side by Side Diff: Source/platform/text/TextBoundaries.h

Issue 268363016: Improve the find word boundary performance (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Add findWordEndBoundary Created 6 years, 5 months ago

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1 /*	1 /*

2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved.	2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions	5 * modification, are permitted provided that the following conditions

6 * are met:	6 * are met:

7 * 1. Redistributions of source code must retain the above copyright	7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.	8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright	9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the	10 * notice, this list of conditions and the following disclaimer in the

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33	33

34 inline bool requiresContextForWordBoundary(UChar32 ch)	34 inline bool requiresContextForWordBoundary(UChar32 ch)

35 {	35 {

36 return WTF::Unicode::hasLineBreakingPropertyComplexContext(ch);	36 return WTF::Unicode::hasLineBreakingPropertyComplexContext(ch);

37 }	37 }

38	38

39 PLATFORM_EXPORT int endOfFirstWordBoundaryContext(const UChar* characters, int l ength);	39 PLATFORM_EXPORT int endOfFirstWordBoundaryContext(const UChar* characters, int l ength);

40 PLATFORM_EXPORT int startOfLastWordBoundaryContext(const UChar* characters, int length);	40 PLATFORM_EXPORT int startOfLastWordBoundaryContext(const UChar* characters, int length);

41	41

42 PLATFORM_EXPORT void findWordBoundary(const UChar, int len, int position, int start, int* end);	42 PLATFORM_EXPORT void findWordBoundary(const UChar, int len, int position, int start, int* end);

	43 PLATFORM_EXPORT int findWordEndBoundary(const UChar*, int len, int position);

43 PLATFORM_EXPORT int findNextWordFromIndex(const UChar*, int len, int position, b ool forward);	44 PLATFORM_EXPORT int findNextWordFromIndex(const UChar*, int len, int position, b ool forward);

44	45

45 }	46 }

46	47

47 #endif	48 #endif

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