The Tor Browser: intl/icu/source/common/unistr_titlecase

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2 *******************************************************************************

     3 *   Copyright (C) 2011, International Business Machines

     4 *   Corporation and others.  All Rights Reserved.

     5 *******************************************************************************

     6 *   file name:  unistr_titlecase_brkiter.cpp

     7 *   encoding:   US-ASCII

     8 *   tab size:   8 (not used)

     9 *   indentation:2

    10 *

    11 *   created on: 2011may30

    12 *   created by: Markus W. Scherer

    13 *

    14 *   Titlecasing functions that are based on BreakIterator

    15 *   were moved here to break dependency cycles among parts of the common library.

    16 */

    18 #include "unicode/utypes.h"

    20 #if !UCONFIG_NO_BREAK_ITERATION

    22 #include "unicode/brkiter.h"

    23 #include "unicode/ubrk.h"

    24 #include "unicode/unistr.h"

    25 #include "unicode/ustring.h"

    26 #include "cmemory.h"

    27 #include "ustr_imp.h"

    29 static int32_t U_CALLCONV

    30 unistr_case_internalToTitle(const UCaseMap *csm,

    31                             UChar *dest, int32_t destCapacity,

    32                             const UChar *src, int32_t srcLength,

    33                             UErrorCode *pErrorCode) {

    34   ubrk_setText(csm->iter, src, srcLength, pErrorCode);

    35   return ustrcase_internalToTitle(csm, dest, destCapacity, src, srcLength, pErrorCode);

    36 }

    38 /*

    39  * Set parameters on an empty UCaseMap, for UCaseMap-less API functions.

    40  * Do this fast because it is called with every function call.

    41  */

    42 static inline void

    43 setTempCaseMap(UCaseMap *csm, const char *locale) {

    44     if(csm->csp==NULL) {

    45         csm->csp=ucase_getSingleton();

    46     }

    47     if(locale!=NULL && locale[0]==0) {

    48         csm->locale[0]=0;

    49     } else {

    50         ustrcase_setTempCaseMapLocale(csm, locale);

    51     }

    52 }

    54 U_NAMESPACE_BEGIN

    56 UnicodeString &

    57 UnicodeString::toTitle(BreakIterator *titleIter) {

    58   return toTitle(titleIter, Locale::getDefault(), 0);

    59 }

    61 UnicodeString &

    62 UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale) {

    63   return toTitle(titleIter, locale, 0);

    64 }

    66 UnicodeString &

    67 UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale, uint32_t options) {

    68   UCaseMap csm=UCASEMAP_INITIALIZER;

    69   csm.options=options;

    70   setTempCaseMap(&csm, locale.getName());

    71   BreakIterator *bi=titleIter;

    72   if(bi==NULL) {

    73     UErrorCode errorCode=U_ZERO_ERROR;

    74     bi=BreakIterator::createWordInstance(locale, errorCode);

    75     if(U_FAILURE(errorCode)) {

    76       setToBogus();

    77       return *this;

    78     }

    79   }

    80   csm.iter=reinterpret_cast<UBreakIterator *>(bi);

    81   caseMap(&csm, unistr_case_internalToTitle);

    82   if(titleIter==NULL) {

    83     delete bi;

    84   }

    85   return *this;

    86 }

    88 U_NAMESPACE_END

    90 #endif  // !UCONFIG_NO_BREAK_ITERATION

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