The Tor Browser: intl/icu/source/i18n/funcrepl.cpp@b8a032363ba2

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

     1 /*

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

     3 *   Copyright (c) 2002-2012, International Business Machines Corporation

     4 *   and others.  All Rights Reserved.

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

     6 *   Date        Name        Description

     7 *   02/04/2002  aliu        Creation.

     8 **********************************************************************

     9 */

    11 #include "unicode/utypes.h"

    13 #if !UCONFIG_NO_TRANSLITERATION

    15 #include "unicode/translit.h"

    16 #include "unicode/uniset.h"

    17 #include "funcrepl.h"

    19 static const UChar AMPERSAND = 38; // '&'

    20 static const UChar OPEN[]    = {40,32,0}; // "( "

    21 static const UChar CLOSE[]   = {32,41,0}; // " )"

    23 U_NAMESPACE_BEGIN

    25 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FunctionReplacer)

    27 /**

    28  * Construct a replacer that takes the output of the given

    29  * replacer, passes it through the given transliterator, and emits

    30  * the result as output.

    31  */

    32 FunctionReplacer::FunctionReplacer(Transliterator* adoptedTranslit,

    33                                    UnicodeFunctor* adoptedReplacer) {

    34     translit = adoptedTranslit;

    35     replacer = adoptedReplacer;

    36 }

    38 /**

    39  * Copy constructor.

    40  */

    41 FunctionReplacer::FunctionReplacer(const FunctionReplacer& other) :

    42     UnicodeFunctor(other),

    43     UnicodeReplacer(other)

    44 {

    45     translit = other.translit->clone();

    46     replacer = other.replacer->clone();

    47 }

    49 /**

    50  * Destructor

    51  */

    52 FunctionReplacer::~FunctionReplacer() {

    53     delete translit;

    54     delete replacer;

    55 }

    57 /**

    58  * Implement UnicodeFunctor

    59  */

    60 UnicodeFunctor* FunctionReplacer::clone() const {

    61     return new FunctionReplacer(*this);

    62 }

    64 /**

    65  * UnicodeFunctor API.  Cast 'this' to a UnicodeReplacer* pointer

    66  * and return the pointer.

    67  */

    68 UnicodeReplacer* FunctionReplacer::toReplacer() const {

    69   FunctionReplacer  *nonconst_this = const_cast<FunctionReplacer *>(this);

    70   UnicodeReplacer *nonconst_base = static_cast<UnicodeReplacer *>(nonconst_this);

    72   return nonconst_base;

    73 }

    75 /**

    76  * UnicodeReplacer API

    77  */

    78 int32_t FunctionReplacer::replace(Replaceable& text,

    79                                   int32_t start,

    80                                   int32_t limit,

    81                                   int32_t& cursor)

    82 {

    84     // First delegate to subordinate replacer

    85     int32_t len = replacer->toReplacer()->replace(text, start, limit, cursor);

    86     limit = start + len;

    88     // Now transliterate

    89     limit = translit->transliterate(text, start, limit);

    91     return limit - start;

    92 }

    94 /**

    95  * UnicodeReplacer API

    96  */

    97 UnicodeString& FunctionReplacer::toReplacerPattern(UnicodeString& rule,

    98                                                    UBool escapeUnprintable) const {

    99     UnicodeString str;

   100     rule.truncate(0);

   101     rule.append(AMPERSAND);

   102     rule.append(translit->getID());

   103     rule.append(OPEN, 2);

   104     rule.append(replacer->toReplacer()->toReplacerPattern(str, escapeUnprintable));

   105     rule.append(CLOSE, 2);

   106     return rule;

   107 }

   109 /**

   110  * Implement UnicodeReplacer

   111  */

   112 void FunctionReplacer::addReplacementSetTo(UnicodeSet& toUnionTo) const {

   113     UnicodeSet set;

   114     toUnionTo.addAll(translit->getTargetSet(set));

   115 }

   117 /**

   118  * UnicodeFunctor API

   119  */

   120 void FunctionReplacer::setData(const TransliterationRuleData* d) {

   121     replacer->setData(d);

   122 }

   124 U_NAMESPACE_END

   126 #endif /* #if !UCONFIG_NO_TRANSLITERATION */

   128 //eof

The Tor Browser / file revision