// © 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
0 x20
/**
* 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
0 x40
/**
* 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
0 x100
/**
* 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
0 x200
/**
* 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 " 49 ers " and " « 丰 ( abc ) » " instead of " 49 Ers " 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
0 x400
/**
* 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
0 x2000
/**
* 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
0 x4000
/**
* 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
0 x8000
/**
* Option bit for unorm_compare :
* Perform case - insensitive comparison .
* @ stable ICU 2 . 2
*/
#define U_COMPARE_IGNORE_CASE
0 x10000
/**
* Option bit for unorm_compare :
* Both input strings are assumed to fulfill FCD conditions .
* @ stable ICU 2 . 2
*/
#define UNORM_INPUT_IS_FCD
0 x20000
// 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__
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