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comparison: intl/icu/source/common/patternprops.h
intl/icu/source/common/patternprops.h
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| -1:000000000000 | 0:1c4f7273733e |
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| 1 /* | |
| 2 ******************************************************************************* | |
| 3 * Copyright (C) 2011, International Business Machines | |
| 4 * Corporation and others. All Rights Reserved. | |
| 5 ******************************************************************************* | |
| 6 * file name: patternprops.h | |
| 7 * encoding: US-ASCII | |
| 8 * tab size: 8 (not used) | |
| 9 * indentation:4 | |
| 10 * | |
| 11 * created on: 2011mar13 | |
| 12 * created by: Markus W. Scherer | |
| 13 */ | |
| 14 | |
| 15 #ifndef __PATTERNPROPS_H__ | |
| 16 #define __PATTERNPROPS_H__ | |
| 17 | |
| 18 #include "unicode/utypes.h" | |
| 19 | |
| 20 U_NAMESPACE_BEGIN | |
| 21 | |
| 22 /** | |
| 23 * Implements the immutable Unicode properties Pattern_Syntax and Pattern_White_Space. | |
| 24 * Hardcodes these properties, does not load data, does not depend on other ICU classes. | |
| 25 * <p> | |
| 26 * Note: Both properties include ASCII as well as non-ASCII, non-Latin-1 code points, | |
| 27 * and both properties only include BMP code points (no supplementary ones). | |
| 28 * Pattern_Syntax includes some unassigned code points. | |
| 29 * <p> | |
| 30 * [:Pattern_White_Space:] = | |
| 31 * [\u0009-\u000D\ \u0085\u200E\u200F\u2028\u2029] | |
| 32 * <p> | |
| 33 * [:Pattern_Syntax:] = | |
| 34 * [!-/\:-@\[-\^`\{-~\u00A1-\u00A7\u00A9\u00AB\u00AC\u00AE | |
| 35 * \u00B0\u00B1\u00B6\u00BB\u00BF\u00D7\u00F7 | |
| 36 * \u2010-\u2027\u2030-\u203E\u2041-\u2053\u2055-\u205E | |
| 37 * \u2190-\u245F\u2500-\u2775\u2794-\u2BFF\u2E00-\u2E7F | |
| 38 * \u3001-\u3003\u3008-\u3020\u3030\uFD3E\uFD3F\uFE45\uFE46] | |
| 39 * @author mscherer | |
| 40 */ | |
| 41 class U_COMMON_API PatternProps { | |
| 42 public: | |
| 43 /** | |
| 44 * @return TRUE if c is a Pattern_Syntax code point. | |
| 45 */ | |
| 46 static UBool isSyntax(UChar32 c); | |
| 47 | |
| 48 /** | |
| 49 * @return TRUE if c is a Pattern_Syntax or Pattern_White_Space code point. | |
| 50 */ | |
| 51 static UBool isSyntaxOrWhiteSpace(UChar32 c); | |
| 52 | |
| 53 /** | |
| 54 * @return TRUE if c is a Pattern_White_Space character. | |
| 55 */ | |
| 56 static UBool isWhiteSpace(UChar32 c); | |
| 57 | |
| 58 /** | |
| 59 * Skips over Pattern_White_Space starting at s. | |
| 60 * @return The smallest pointer at or after s with a non-white space character. | |
| 61 */ | |
| 62 static const UChar *skipWhiteSpace(const UChar *s, int32_t length); | |
| 63 | |
| 64 /** | |
| 65 * @return s except with leading and trailing Pattern_White_Space removed and length adjusted. | |
| 66 */ | |
| 67 static const UChar *trimWhiteSpace(const UChar *s, int32_t &length); | |
| 68 | |
| 69 /** | |
| 70 * Tests whether the string contains a "pattern identifier", that is, | |
| 71 * whether it contains only non-Pattern_White_Space, non-Pattern_Syntax characters. | |
| 72 * @return TRUE if there are no Pattern_White_Space or Pattern_Syntax characters in s. | |
| 73 */ | |
| 74 static UBool isIdentifier(const UChar *s, int32_t length); | |
| 75 | |
| 76 /** | |
| 77 * Skips over a "pattern identifier" starting at index s. | |
| 78 * @return The smallest pointer at or after s with | |
| 79 * a Pattern_White_Space or Pattern_Syntax character. | |
| 80 */ | |
| 81 static const UChar *skipIdentifier(const UChar *s, int32_t length); | |
| 82 | |
| 83 private: | |
| 84 PatternProps(); // no constructor: all static methods | |
| 85 }; | |
| 86 | |
| 87 U_NAMESPACE_END | |
| 88 | |
| 89 #endif // __PATTERNPROPS_H__ |
