1 /********************************************************************** 2 * 2016 and later: Unicode, Inc. and others. 3 * License & terms of use: http://www.unicode.org/copyright.html#License 4 ********************************************************************** 5 ********************************************************************** 6 * COPYRIGHT: 7 * Copyright (c) 1999-2003, International Business Machines Corporation and 8 * others. All Rights Reserved. 9 **********************************************************************/ 10 11 #include "unaccent.h" 12 13 const char UnaccentTransliterator::fgClassID = 0; 14 15 /** 16 * Constructor 17 */ 18 UnaccentTransliterator::UnaccentTransliterator() : 19 normalizer("", UNORM_NFD), 20 Transliterator("Unaccent", 0) { 21 } 22 23 /** 24 * Destructor 25 */ 26 UnaccentTransliterator::~UnaccentTransliterator() { 27 } 28 29 /** 30 * Remove accents from a character using Normalizer. 31 */ 32 UChar UnaccentTransliterator::unaccent(UChar c) const { 33 UnicodeString str(c); 34 UErrorCode status = U_ZERO_ERROR; 35 UnaccentTransliterator* t = (UnaccentTransliterator*)this; 36 37 t->normalizer.setText(str, status); 38 if (U_FAILURE(status)) { 39 return c; 40 } 41 return (UChar) t->normalizer.next(); 42 } 43 44 /** 45 * Implement Transliterator API 46 */ 47 void UnaccentTransliterator::handleTransliterate(Replaceable& text, 48 UTransPosition& index, 49 UBool incremental) const { 50 UnicodeString str("a"); 51 while (index.start < index.limit) { 52 UChar c = text.charAt(index.start); 53 UChar d = unaccent(c); 54 if (c != d) { 55 str.setCharAt(0, d); 56 text.handleReplaceBetween(index.start, index.start+1, str); 57 } 58 index.start++; 59 } 60 } 61
