source/common/unistr_titlecase_brkiter.cpp

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*   Copyright (C) 2011, International Business Machines
*   Corporation and others.  All Rights Reserved.
*******************************************************************************
*   file name:  unistr_titlecase_brkiter.cpp
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:2
*
*   created on: 2011may30
*   created by: Markus W. Scherer
*
*   Titlecasing functions that are based on BreakIterator
*   were moved here to break dependency cycles among parts of the common library.
*/

#include "unicode/utypes.h"

#if !UCONFIG_NO_BREAK_ITERATION

#include "unicode/brkiter.h"
#include "unicode/locid.h"
#include "unicode/ucasemap.h"
#include "unicode/unistr.h"
#include "ucasemap_imp.h"

U_NAMESPACE_BEGIN

UnicodeString &
UnicodeString::toTitle(BreakIterator *titleIter) {
  return toTitle(titleIter, Locale::getDefault(), 0);
}

UnicodeString &
UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale) {
  return toTitle(titleIter, locale, 0);
}

UnicodeString &
UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale, uint32_t options) {
  BreakIterator *bi=titleIter;
  if(bi==NULL) {
    UErrorCode errorCode=U_ZERO_ERROR;
    bi=BreakIterator::createWordInstance(locale, errorCode);
    if(U_FAILURE(errorCode)) {
      setToBogus();
      return *this;
    }
  }
  // Because the "this" string is both the source and the destination,
  // make a copy of the original source for use by the break iterator.
  // See tickets #13127 and #13128
  UnicodeString copyOfInput(*this);
  bi->setText(copyOfInput);
  caseMap(ustrcase_getCaseLocale(locale.getBaseName()), options, bi, ustrcase_internalToTitle);
  if(titleIter==NULL) {
    delete bi;
  }
  return *this;
}

U_NAMESPACE_END

#endif  // !UCONFIG_NO_BREAK_ITERATION