The Tor Browser: intl/icu/source/i18n/remtrans.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

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

     3 *   Copyright (c) 2001-2011, International Business Machines

     4 *   Corporation and others.  All Rights Reserved.

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

     6 *   Date        Name        Description

     7 *   04/02/2001  aliu        Creation.

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

     9 */

    11 #include "unicode/utypes.h"

    13 #if !UCONFIG_NO_TRANSLITERATION

    15 #include "remtrans.h"

    16 #include "unicode/unifilt.h"

    18 static const UChar CURR_ID[] = {65, 110, 121, 45, 0x52, 0x65, 0x6D, 0x6F, 0x76, 0x65, 0x00}; /* "Any-Remove" */

    20 U_NAMESPACE_BEGIN

    22 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(RemoveTransliterator)

    24 /**

    25  * Factory method

    26  */

    27 static Transliterator* RemoveTransliterator_create(const UnicodeString& /*ID*/,

    28                                                    Transliterator::Token /*context*/) {

    29     /* We don't need the ID or context. We just remove data */

    30     return new RemoveTransliterator();

    31 }

    33 /**

    34  * System registration hook.

    35  */

    36 void RemoveTransliterator::registerIDs() {

    38     Transliterator::_registerFactory(UnicodeString(TRUE, ::CURR_ID, -1),

    39                                      RemoveTransliterator_create, integerToken(0));

    41     Transliterator::_registerSpecialInverse(UNICODE_STRING_SIMPLE("Remove"),

    42                                             UNICODE_STRING_SIMPLE("Null"), FALSE);

    43 }

    45 RemoveTransliterator::RemoveTransliterator() : Transliterator(UnicodeString(TRUE, ::CURR_ID, -1), 0) {}

    47 RemoveTransliterator::~RemoveTransliterator() {}

    49 Transliterator* RemoveTransliterator::clone(void) const {

    50     Transliterator* result = new RemoveTransliterator();

    51     if (result != NULL && getFilter() != 0) {

    52         result->adoptFilter((UnicodeFilter*)(getFilter()->clone()));

    53     }

    54     return result;

    55 }

    57 void RemoveTransliterator::handleTransliterate(Replaceable& text, UTransPosition& index,

    58                                                UBool /*isIncremental*/) const {

    59     // Our caller (filteredTransliterate) has already narrowed us

    60     // to an unfiltered run.  Delete it.

    61     UnicodeString empty;

    62     text.handleReplaceBetween(index.start, index.limit, empty);

    63     int32_t len = index.limit - index.start;

    64     index.contextLimit -= len;

    65     index.limit -= len;

    66 }

    67 U_NAMESPACE_END

    69 #endif /* #if !UCONFIG_NO_TRANSLITERATION */

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