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// © 2017 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html // stringoptions.h // created: 2017jun08 Markus W. Scherer #ifndef __STRINGOPTIONS_H__ #define __STRINGOPTIONS_H__ #include "unicode/utypes.h" /** * \file * \brief C API: Bit set option bit constants for various string and character processing functions. */ /** * Option value for case folding: Use default mappings defined in CaseFolding.txt. * * @stable ICU 2.0 */ #define U_FOLD_CASE_DEFAULT 0 /** * Option value for case folding: * * Use the modified set of mappings provided in CaseFolding.txt to handle dotted I * and dotless i appropriately for Turkic languages (tr, az). * * Before Unicode 3.2, CaseFolding.txt contains mappings marked with 'I' that * are to be included for default mappings and * excluded for the Turkic-specific mappings. * * Unicode 3.2 CaseFolding.txt instead contains mappings marked with 'T' that * are to be excluded for default mappings and * included for the Turkic-specific mappings. * * @stable ICU 2.0 */ #define U_FOLD_CASE_EXCLUDE_SPECIAL_I 1 /** * Titlecase the string as a whole rather than each word. * (Titlecase only the character at index 0, possibly adjusted.) * Option bits value for titlecasing APIs that take an options bit set. * * It is an error to specify multiple titlecasing iterator options together, * including both an options bit and an explicit BreakIterator. * * @see U_TITLECASE_ADJUST_TO_CASED * @stable ICU 60 */ #define U_TITLECASE_WHOLE_STRING 0x20 /** * Titlecase sentences rather than words. * (Titlecase only the first character of each sentence, possibly adjusted.) * Option bits value for titlecasing APIs that take an options bit set. * * It is an error to specify multiple titlecasing iterator options together, * including both an options bit and an explicit BreakIterator. * * @see U_TITLECASE_ADJUST_TO_CASED * @stable ICU 60 */ #define U_TITLECASE_SENTENCES 0x40 /** * Do not lowercase non-initial parts of words when titlecasing. * Option bit for titlecasing APIs that take an options bit set. * * By default, titlecasing will titlecase the character at each * (possibly adjusted) BreakIterator index and * lowercase all other characters up to the next iterator index. * With this option, the other characters will not be modified. * * @see U_TITLECASE_ADJUST_TO_CASED * @see UnicodeString::toTitle * @see CaseMap::toTitle * @see ucasemap_setOptions * @see ucasemap_toTitle * @see ucasemap_utf8ToTitle * @stable ICU 3.8 */ #define U_TITLECASE_NO_LOWERCASE 0x100 /** * Do not adjust the titlecasing BreakIterator indexes; * titlecase exactly the characters at breaks from the iterator. * Option bit for titlecasing APIs that take an options bit set. * * By default, titlecasing will take each break iterator index, * adjust it to the next relevant character (see U_TITLECASE_ADJUST_TO_CASED), * and titlecase that one. * * Other characters are lowercased. * * It is an error to specify multiple titlecasing adjustment options together. * * @see U_TITLECASE_ADJUST_TO_CASED * @see U_TITLECASE_NO_LOWERCASE * @see UnicodeString::toTitle * @see CaseMap::toTitle * @see ucasemap_setOptions * @see ucasemap_toTitle * @see ucasemap_utf8ToTitle * @stable ICU 3.8 */ #define U_TITLECASE_NO_BREAK_ADJUSTMENT 0x200 /** * Adjust each titlecasing BreakIterator index to the next cased character. * (See the Unicode Standard, chapter 3, Default Case Conversion, R3 toTitlecase(X).) * Option bit for titlecasing APIs that take an options bit set. * * This used to be the default index adjustment in ICU. * Since ICU 60, the default index adjustment is to the next character that is * a letter, number, symbol, or private use code point. * (Uncased modifier letters are skipped.) * The difference in behavior is small for word titlecasing, * but the new adjustment is much better for whole-string and sentence titlecasing: * It yields "49ers" and "«丰(abc)»" instead of "49Ers" and "«丰(Abc)»". * * It is an error to specify multiple titlecasing adjustment options together. * * @see U_TITLECASE_NO_BREAK_ADJUSTMENT * @stable ICU 60 */ #define U_TITLECASE_ADJUST_TO_CASED 0x400 /** * Option for string transformation functions to not first reset the Edits object. * Used for example in some case-mapping and normalization functions. * * @see CaseMap * @see Edits * @see Normalizer2 * @stable ICU 60 */ #define U_EDITS_NO_RESET 0x2000 /** * Omit unchanged text when recording how source substrings * relate to changed and unchanged result substrings. * Used for example in some case-mapping and normalization functions. * * @see CaseMap * @see Edits * @see Normalizer2 * @stable ICU 60 */ #define U_OMIT_UNCHANGED_TEXT 0x4000 /** * Option bit for u_strCaseCompare, u_strcasecmp, unorm_compare, etc: * Compare strings in code point order instead of code unit order. * @stable ICU 2.2 */ #define U_COMPARE_CODE_POINT_ORDER 0x8000 /** * Option bit for unorm_compare: * Perform case-insensitive comparison. * @stable ICU 2.2 */ #define U_COMPARE_IGNORE_CASE 0x10000 /** * Option bit for unorm_compare: * Both input strings are assumed to fulfill FCD conditions. * @stable ICU 2.2 */ #define UNORM_INPUT_IS_FCD 0x20000 // Related definitions elsewhere. // Options that are not meaningful in the same functions // can share the same bits. // // Public: // unicode/unorm.h #define UNORM_COMPARE_NORM_OPTIONS_SHIFT 20 // // Internal: (may change or be removed) // ucase.h #define _STRCASECMP_OPTIONS_MASK 0xffff // ucase.h #define _FOLD_CASE_OPTIONS_MASK 7 // ucasemap_imp.h #define U_TITLECASE_ITERATOR_MASK 0xe0 // ucasemap_imp.h #define U_TITLECASE_ADJUSTMENT_MASK 0x600 // ustr_imp.h #define _STRNCMP_STYLE 0x1000 // unormcmp.cpp #define _COMPARE_EQUIV 0x80000 #endif // __STRINGOPTIONS_H__