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

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

     1 /********************************************************************

     2  * COPYRIGHT:

     3  * Copyright (c) 2008-2011, International Business Machines Corporation and

     4  * others. All Rights Reserved.

     5  ********************************************************************/

     6 //

     7 //  file:  regextxt.cpp

     8 //

     9 //  This file contains utility code for supporting UText in the regular expression engine.

    10 //

    12 #include "unicode/utf.h"

    13 #include "regextxt.h"

    15 U_NAMESPACE_BEGIN

    17 U_CFUNC UChar U_CALLCONV

    18 uregex_utext_unescape_charAt(int32_t offset, void *ct) {

    19     struct URegexUTextUnescapeCharContext *context = (struct URegexUTextUnescapeCharContext *)ct;

    20     UChar32 c;

    21     if (offset == context->lastOffset + 1) {

    22         c = UTEXT_NEXT32(context->text);

    23         context->lastOffset++;

    24     } else if (offset == context->lastOffset) {

    25         c = UTEXT_PREVIOUS32(context->text);

    26         UTEXT_NEXT32(context->text);

    27     } else {

    28         utext_moveIndex32(context->text, offset - context->lastOffset - 1);

    29         c = UTEXT_NEXT32(context->text);

    30         context->lastOffset = offset;

    31     }

    33     // !!!: Doesn't handle characters outside BMP

    34     if (U_IS_BMP(c)) {

    35         return (UChar)c;

    36     } else {

    37         return 0;

    38     }

    39 }

    41 U_CFUNC UChar U_CALLCONV

    42 uregex_ucstr_unescape_charAt(int32_t offset, void *context) {

    43     return ((UChar *)context)[offset];

    44 }

    46 U_NAMESPACE_END

The Tor Browser / file revision