1 /* 2 * Copyright (C) 2007 Apple Inc. All rights reserved. 3 * Copyright (C) 2008 Tony Chang <idealisms (at) gmail.com> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 15 * its contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "config.h" 31 #include "core/editing/SmartReplace.h" 32 33 #if !USE(CF) 34 #include "wtf/Assertions.h" 35 #include "wtf/text/WTFString.h" 36 #include <unicode/uset.h> 37 38 namespace WebCore { 39 40 static void addAllCodePoints(USet* smartSet, const String& string) 41 { 42 for (size_t i = 0; i < string.length(); i++) 43 uset_add(smartSet, string[i]); 44 } 45 46 // This is mostly a port of the code in WebCore/editing/SmartReplaceCF.cpp 47 // except we use icu in place of CoreFoundations character classes. 48 static USet* getSmartSet(bool isPreviousCharacter) 49 { 50 static USet* preSmartSet = NULL; 51 static USet* postSmartSet = NULL; 52 USet* smartSet = isPreviousCharacter ? preSmartSet : postSmartSet; 53 if (!smartSet) { 54 // Whitespace and newline (kCFCharacterSetWhitespaceAndNewline) 55 UErrorCode ec = U_ZERO_ERROR; 56 String whitespaceAndNewline("[[:WSpace:] [\\u000A\\u000B\\u000C\\u000D\\u0085]]"); 57 smartSet = uset_openPattern(whitespaceAndNewline.charactersWithNullTermination().data(), whitespaceAndNewline.length(), &ec); 58 ASSERT(U_SUCCESS(ec)); 59 60 // CJK ranges 61 uset_addRange(smartSet, 0x1100, 0x1100 + 256); // Hangul Jamo (0x1100 - 0x11FF) 62 uset_addRange(smartSet, 0x2E80, 0x2E80 + 352); // CJK & Kangxi Radicals (0x2E80 - 0x2FDF) 63 uset_addRange(smartSet, 0x2FF0, 0x2FF0 + 464); // Ideograph Descriptions, CJK Symbols, Hiragana, Katakana, Bopomofo, Hangul Compatibility Jamo, Kanbun, & Bopomofo Ext (0x2FF0 - 0x31BF) 64 uset_addRange(smartSet, 0x3200, 0x3200 + 29392); // Enclosed CJK, CJK Ideographs (Uni Han & Ext A), & Yi (0x3200 - 0xA4CF) 65 uset_addRange(smartSet, 0xAC00, 0xAC00 + 11183); // Hangul Syllables (0xAC00 - 0xD7AF) 66 uset_addRange(smartSet, 0xF900, 0xF900 + 352); // CJK Compatibility Ideographs (0xF900 - 0xFA5F) 67 uset_addRange(smartSet, 0xFE30, 0xFE30 + 32); // CJK Compatibility From (0xFE30 - 0xFE4F) 68 uset_addRange(smartSet, 0xFF00, 0xFF00 + 240); // Half/Full Width Form (0xFF00 - 0xFFEF) 69 uset_addRange(smartSet, 0x20000, 0x20000 + 0xA6D7); // CJK Ideograph Exntension B 70 uset_addRange(smartSet, 0x2F800, 0x2F800 + 0x021E); // CJK Compatibility Ideographs (0x2F800 - 0x2FA1D) 71 72 if (isPreviousCharacter) { 73 addAllCodePoints(smartSet, "([\"\'#$/-`{"); 74 preSmartSet = smartSet; 75 } else { 76 addAllCodePoints(smartSet, ")].,;:?\'!\"%*-/}"); 77 78 // Punctuation (kCFCharacterSetPunctuation) 79 UErrorCode ec = U_ZERO_ERROR; 80 String punctuationClass("[:P:]"); 81 USet* icuPunct = uset_openPattern(punctuationClass.charactersWithNullTermination().data(), punctuationClass.length(), &ec); 82 ASSERT(U_SUCCESS(ec)); 83 uset_addAll(smartSet, icuPunct); 84 uset_close(icuPunct); 85 86 postSmartSet = smartSet; 87 } 88 } 89 return smartSet; 90 } 91 92 bool isCharacterSmartReplaceExempt(UChar32 c, bool isPreviousCharacter) 93 { 94 return uset_contains(getSmartSet(isPreviousCharacter), c); 95 } 96 97 } 98 99 #endif // !USE(CF) 100