projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| 729e4ab9 A |
1 | /******************************************************************** |
| 2 | * COPYRIGHT: | |
| 3 | * Copyright (c) 2008-2010, 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 | // | |
| 11 | ||
| 12 | #include "regextxt.h" | |
| 13 | ||
| 14 | U_NAMESPACE_BEGIN | |
| 15 | ||
| 16 | U_CFUNC UChar U_CALLCONV | |
| 17 | uregex_utext_unescape_charAt(int32_t offset, void *ct) { | |
| 18 | struct URegexUTextUnescapeCharContext *context = (struct URegexUTextUnescapeCharContext *)ct; | |
| 19 | UChar32 c; | |
| 20 | if (offset == context->lastOffset + 1) { | |
| 21 | c = UTEXT_NEXT32(context->text); | |
| 22 | context->lastOffset++; | |
| 23 | } else if (offset == context->lastOffset) { | |
| 24 | c = UTEXT_PREVIOUS32(context->text); | |
| 25 | UTEXT_NEXT32(context->text); | |
| 26 | } else { | |
| 27 | utext_moveIndex32(context->text, offset - context->lastOffset - 1); | |
| 28 | c = UTEXT_NEXT32(context->text); | |
| 29 | context->lastOffset = offset; | |
| 30 | } | |
| 31 | ||
| 32 | // !!!: Doesn't handle characters outside BMP | |
| 33 | if (U_IS_BMP(c)) { | |
| 34 | return (UChar)c; | |
| 35 | } else { | |
| 36 | return 0; | |
| 37 | } | |
| 38 | } | |
| 39 | ||
| 40 | U_CFUNC UChar U_CALLCONV | |
| 41 | uregex_ucstr_unescape_charAt(int32_t offset, void *context) { | |
| 42 | return ((UChar *)context)[offset]; | |
| 43 | } | |
| 44 | ||
| 45 | U_NAMESPACE_END |