intl/icu/source/i18n/regextxt.cpp@6474c204b198 (annotated)
intl/icu/source/i18n/regextxt.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /******************************************************************** |
| michael@0 | 2 | * COPYRIGHT: |
| michael@0 | 3 | * Copyright (c) 2008-2011, International Business Machines Corporation and |
| michael@0 | 4 | * others. All Rights Reserved. |
| michael@0 | 5 | ********************************************************************/ |
| michael@0 | 6 | // |
| michael@0 | 7 | // file: regextxt.cpp |
| michael@0 | 8 | // |
| michael@0 | 9 | // This file contains utility code for supporting UText in the regular expression engine. |
| michael@0 | 10 | // |
| michael@0 | 11 | |
| michael@0 | 12 | #include "unicode/utf.h" |
| michael@0 | 13 | #include "regextxt.h" |
| michael@0 | 14 | |
| michael@0 | 15 | U_NAMESPACE_BEGIN |
| michael@0 | 16 | |
| michael@0 | 17 | U_CFUNC UChar U_CALLCONV |
| michael@0 | 18 | uregex_utext_unescape_charAt(int32_t offset, void *ct) { |
| michael@0 | 19 | struct URegexUTextUnescapeCharContext *context = (struct URegexUTextUnescapeCharContext *)ct; |
| michael@0 | 20 | UChar32 c; |
| michael@0 | 21 | if (offset == context->lastOffset + 1) { |
| michael@0 | 22 | c = UTEXT_NEXT32(context->text); |
| michael@0 | 23 | context->lastOffset++; |
| michael@0 | 24 | } else if (offset == context->lastOffset) { |
| michael@0 | 25 | c = UTEXT_PREVIOUS32(context->text); |
| michael@0 | 26 | UTEXT_NEXT32(context->text); |
| michael@0 | 27 | } else { |
| michael@0 | 28 | utext_moveIndex32(context->text, offset - context->lastOffset - 1); |
| michael@0 | 29 | c = UTEXT_NEXT32(context->text); |
| michael@0 | 30 | context->lastOffset = offset; |
| michael@0 | 31 | } |
| michael@0 | 32 | |
| michael@0 | 33 | // !!!: Doesn't handle characters outside BMP |
| michael@0 | 34 | if (U_IS_BMP(c)) { |
| michael@0 | 35 | return (UChar)c; |
| michael@0 | 36 | } else { |
| michael@0 | 37 | return 0; |
| michael@0 | 38 | } |
| michael@0 | 39 | } |
| michael@0 | 40 | |
| michael@0 | 41 | U_CFUNC UChar U_CALLCONV |
| michael@0 | 42 | uregex_ucstr_unescape_charAt(int32_t offset, void *context) { |
| michael@0 | 43 | return ((UChar *)context)[offset]; |
| michael@0 | 44 | } |
| michael@0 | 45 | |
| michael@0 | 46 | U_NAMESPACE_END |
