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| 1 /* | 1 /* |
| 2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2009 Dominik Roettsches <dominik.roettsches@access-company.com> | 3 * Copyright (C) 2009 Dominik Roettsches <dominik.roettsches@access-company.com> |
| 4 * | 4 * |
| 5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
| 7 * are met: | 7 * are met: |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| (...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 61 int len, | 61 int len, |
| 62 int position, | 62 int position, |
| 63 bool forward) { | 63 bool forward) { |
| 64 TextBreakIterator* it = wordBreakIterator(chars, len); | 64 TextBreakIterator* it = wordBreakIterator(chars, len); |
| 65 | 65 |
| 66 if (forward) { | 66 if (forward) { |
| 67 position = it->following(position); | 67 position = it->following(position); |
| 68 while (position != TextBreakDone) { | 68 while (position != TextBreakDone) { |
| 69 // We stop searching when the character preceeding the break | 69 // We stop searching when the character preceeding the break |
| 70 // is alphanumeric or underscore. | 70 // is alphanumeric or underscore. |
| 71 if (position < len && (isAlphanumeric(chars[position - 1]) || | 71 if (position < len && |
| 72 chars[position - 1] == lowLineCharacter)) | 72 (isAlphanumeric(chars[position - 1]) || |
| 73 chars[position - 1] == lowLineCharacter)) |
| 73 return position; | 74 return position; |
| 74 | 75 |
| 75 position = it->following(position); | 76 position = it->following(position); |
| 76 } | 77 } |
| 77 | 78 |
| 78 return len; | 79 return len; |
| 79 } else { | 80 } else { |
| 80 position = it->preceding(position); | 81 position = it->preceding(position); |
| 81 while (position != TextBreakDone) { | 82 while (position != TextBreakDone) { |
| 82 // We stop searching when the character following the break | 83 // We stop searching when the character following the break |
| 83 // is alphanumeric or underscore. | 84 // is alphanumeric or underscore. |
| 84 if (position > 0 && (isAlphanumeric(chars[position]) || | 85 if (position > 0 && |
| 85 chars[position] == lowLineCharacter)) | 86 (isAlphanumeric(chars[position]) || |
| 87 chars[position] == lowLineCharacter)) |
| 86 return position; | 88 return position; |
| 87 | 89 |
| 88 position = it->preceding(position); | 90 position = it->preceding(position); |
| 89 } | 91 } |
| 90 | 92 |
| 91 return 0; | 93 return 0; |
| 92 } | 94 } |
| 93 } | 95 } |
| 94 | 96 |
| 95 void findWordBoundary(const UChar* chars, | 97 void findWordBoundary(const UChar* chars, |
| 96 int len, | 98 int len, |
| 97 int position, | 99 int position, |
| 98 int* start, | 100 int* start, |
| 99 int* end) { | 101 int* end) { |
| 100 TextBreakIterator* it = wordBreakIterator(chars, len); | 102 TextBreakIterator* it = wordBreakIterator(chars, len); |
| 101 *end = it->following(position); | 103 *end = it->following(position); |
| 102 if (*end < 0) | 104 if (*end < 0) |
| 103 *end = it->last(); | 105 *end = it->last(); |
| 104 *start = it->previous(); | 106 *start = it->previous(); |
| 105 } | 107 } |
| 106 | 108 |
| 107 int findWordEndBoundary(const UChar* chars, int len, int position) { | 109 int findWordEndBoundary(const UChar* chars, int len, int position) { |
| 108 TextBreakIterator* it = wordBreakIterator(chars, len); | 110 TextBreakIterator* it = wordBreakIterator(chars, len); |
| 109 int end = it->following(position); | 111 int end = it->following(position); |
| 110 return end < 0 ? it->last() : end; | 112 return end < 0 ? it->last() : end; |
| 111 } | 113 } |
| 112 | 114 |
| 113 } // namespace blink | 115 } // namespace blink |
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