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comparison: intl/icu/source/i18n/unesctrn.h
intl/icu/source/i18n/unesctrn.h
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| -1:000000000000 | 0:f5b88265d2e2 |
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| 1 /* | |
| 2 ********************************************************************** | |
| 3 * Copyright (c) 2001-2007, International Business Machines | |
| 4 * Corporation and others. All Rights Reserved. | |
| 5 ********************************************************************** | |
| 6 * Date Name Description | |
| 7 * 11/20/2001 aliu Creation. | |
| 8 ********************************************************************** | |
| 9 */ | |
| 10 #ifndef UNESCTRN_H | |
| 11 #define UNESCTRN_H | |
| 12 | |
| 13 #include "unicode/utypes.h" | |
| 14 | |
| 15 #if !UCONFIG_NO_TRANSLITERATION | |
| 16 | |
| 17 #include "unicode/translit.h" | |
| 18 | |
| 19 U_NAMESPACE_BEGIN | |
| 20 | |
| 21 /** | |
| 22 * A transliterator that converts Unicode escape forms to the | |
| 23 * characters they represent. Escape forms have a prefix, a suffix, a | |
| 24 * radix, and minimum and maximum digit counts. | |
| 25 * | |
| 26 * <p>This class is package private. It registers several standard | |
| 27 * variants with the system which are then accessed via their IDs. | |
| 28 * | |
| 29 * @author Alan Liu | |
| 30 */ | |
| 31 class UnescapeTransliterator : public Transliterator { | |
| 32 | |
| 33 private: | |
| 34 | |
| 35 /** | |
| 36 * The encoded pattern specification. The pattern consists of | |
| 37 * zero or more forms. Each form consists of a prefix, suffix, | |
| 38 * radix, minimum digit count, and maximum digit count. These | |
| 39 * values are stored as a five character header. That is, their | |
| 40 * numeric values are cast to 16-bit characters and stored in the | |
| 41 * string. Following these five characters, the prefix | |
| 42 * characters, then suffix characters are stored. Each form thus | |
| 43 * takes n+5 characters, where n is the total length of the prefix | |
| 44 * and suffix. The end is marked by a header of length one | |
| 45 * consisting of the character END. | |
| 46 */ | |
| 47 UChar* spec; // owned; may not be NULL | |
| 48 | |
| 49 public: | |
| 50 | |
| 51 /** | |
| 52 * Registers standard variants with the system. Called by | |
| 53 * Transliterator during initialization. | |
| 54 */ | |
| 55 static void registerIDs(); | |
| 56 | |
| 57 /** | |
| 58 * Constructor. Takes the encoded spec array (does not adopt it). | |
| 59 * @param ID the string identifier for this transliterator | |
| 60 * @param spec the encoded spec array | |
| 61 */ | |
| 62 UnescapeTransliterator(const UnicodeString& ID, | |
| 63 const UChar *spec); | |
| 64 | |
| 65 /** | |
| 66 * Copy constructor. | |
| 67 */ | |
| 68 UnescapeTransliterator(const UnescapeTransliterator&); | |
| 69 | |
| 70 /** | |
| 71 * Destructor. | |
| 72 */ | |
| 73 virtual ~UnescapeTransliterator(); | |
| 74 | |
| 75 /** | |
| 76 * Transliterator API. | |
| 77 */ | |
| 78 virtual Transliterator* clone() const; | |
| 79 | |
| 80 /** | |
| 81 * ICU "poor man's RTTI", returns a UClassID for the actual class. | |
| 82 */ | |
| 83 virtual UClassID getDynamicClassID() const; | |
| 84 | |
| 85 /** | |
| 86 * ICU "poor man's RTTI", returns a UClassID for this class. | |
| 87 */ | |
| 88 U_I18N_API static UClassID U_EXPORT2 getStaticClassID(); | |
| 89 | |
| 90 protected: | |
| 91 | |
| 92 /** | |
| 93 * Implements {@link Transliterator#handleTransliterate}. | |
| 94 * @param text the buffer holding transliterated and | |
| 95 * untransliterated text | |
| 96 * @param offset the start and limit of the text, the position | |
| 97 * of the cursor, and the start and limit of transliteration. | |
| 98 * @param incremental if true, assume more text may be coming after | |
| 99 * pos.contextLimit. Otherwise, assume the text is complete. | |
| 100 */ | |
| 101 virtual void handleTransliterate(Replaceable& text, UTransPosition& offset, | |
| 102 UBool isIncremental) const; | |
| 103 | |
| 104 }; | |
| 105 | |
| 106 U_NAMESPACE_END | |
| 107 | |
| 108 #endif /* #if !UCONFIG_NO_TRANSLITERATION */ | |
| 109 | |
| 110 #endif |
