1 /***********************************************************************
2 * Copyright (C) 2016 and later: Unicode, Inc. and others.
3 * License & terms of use: http://www.unicode.org/copyright.html#License
4 ***********************************************************************
5 * COPYRIGHT:
6 * Copyright (c) 1999-2002, International Business Machines Corporation and
7 * others. All Rights Reserved.
8 ***********************************************************************/
9
10 #include "unaccent.h"
11
12 /**
13 * Constructor
14 */
UnaccentTransliterator()15 UnaccentTransliterator::UnaccentTransliterator() :
16 normalizer("", Normalizer::DECOMP),
17 Transliterator("Unaccent", 0) {
18 }
19
20 /**
21 * Destructor
22 */
~UnaccentTransliterator()23 UnaccentTransliterator::~UnaccentTransliterator() {
24 }
25
26 /**
27 * Remove accents from a character using Normalizer.
28 */
unaccent(UChar c) const29 UChar UnaccentTransliterator::unaccent(UChar c) const {
30 UnicodeString str(c);
31 UErrorCode status = U_ZERO_ERROR;
32 UnaccentTransliterator* t = (UnaccentTransliterator*)this;
33
34 t->normalizer.setText(str, status);
35 if (U_FAILURE(status)) {
36 return c;
37 }
38 return (UChar) t->normalizer.next();
39 }
40
41 /**
42 * Implement Transliterator API
43 */
handleTransliterate(Replaceable & text,UTransPosition & index,UBool incremental) const44 void UnaccentTransliterator::handleTransliterate(Replaceable& text,
45 UTransPosition& index,
46 UBool incremental) const {
47 UnicodeString str("a");
48 while (index.start < index.limit) {
49 UChar c = text.charAt(index.start);
50 UChar d = unaccent(c);
51 if (c != d) {
52 str.setCharAt(0, d);
53 text.handleReplaceBetween(index.start, index.start+1, str);
54 }
55 index.start++;
56 }
57 }
58