240 lines
8.0 KiB
C++
240 lines
8.0 KiB
C++
// © 2017 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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// ucasemap_imp.h
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// created: 2017feb08 Markus W. Scherer
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#ifndef __UCASEMAP_IMP_H__
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#define __UCASEMAP_IMP_H__
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#include "unicode/utypes.h"
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#include "unicode/ucasemap.h"
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#include "ucase.h"
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#ifndef U_COMPARE_IGNORE_CASE
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/* see also unorm.h */
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/**
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* Option bit for unorm_compare:
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* Perform case-insensitive comparison.
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*/
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#define U_COMPARE_IGNORE_CASE 0x10000
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#endif
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/**
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* Internal API, used by u_strcasecmp() etc.
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* Compare strings case-insensitively,
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* in code point order or code unit order.
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*/
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U_CFUNC int32_t
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u_strcmpFold(const UChar *s1, int32_t length1,
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const UChar *s2, int32_t length2,
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uint32_t options,
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UErrorCode *pErrorCode);
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/**
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* Interanl API, used for detecting length of
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* shared prefix case-insensitively.
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* @param s1 input string 1
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* @param length1 length of string 1, or -1 (NULL terminated)
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* @param s2 input string 2
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* @param length2 length of string 2, or -1 (NULL terminated)
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* @param options compare options
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* @param matchLen1 (output) length of partial prefix match in s1
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* @param matchLen2 (output) length of partial prefix match in s2
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* @param pErrorCode receives error status
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*/
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U_CAPI void
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u_caseInsensitivePrefixMatch(const UChar *s1, int32_t length1,
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const UChar *s2, int32_t length2,
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uint32_t options,
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int32_t *matchLen1, int32_t *matchLen2,
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UErrorCode *pErrorCode);
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/**
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* Are the Unicode properties loaded?
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* This must be used before internal functions are called that do
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* not perform this check.
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* Generate a debug assertion failure if data is not loaded.
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*/
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U_CFUNC UBool
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uprv_haveProperties(UErrorCode *pErrorCode);
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#ifdef __cplusplus
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#include "unicode/unistr.h" // for UStringCaseMapper
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/*
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* Internal string casing functions implementing
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* ustring.h/ustrcase.cpp and UnicodeString case mapping functions.
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*/
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struct UCaseMap : public icu::UMemory {
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/** Implements most of ucasemap_open(). */
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UCaseMap(const char *localeID, uint32_t opts, UErrorCode *pErrorCode);
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~UCaseMap();
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#if !UCONFIG_NO_BREAK_ITERATION
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icu::BreakIterator *iter; /* We adopt the iterator, so we own it. */
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#endif
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char locale[32];
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int32_t caseLocale;
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uint32_t options;
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};
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#if UCONFIG_NO_BREAK_ITERATION
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# define UCASEMAP_BREAK_ITERATOR_PARAM
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# define UCASEMAP_BREAK_ITERATOR_UNUSED
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# define UCASEMAP_BREAK_ITERATOR
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# define UCASEMAP_BREAK_ITERATOR_NULL
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#else
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# define UCASEMAP_BREAK_ITERATOR_PARAM icu::BreakIterator *iter,
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# define UCASEMAP_BREAK_ITERATOR_UNUSED icu::BreakIterator *,
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# define UCASEMAP_BREAK_ITERATOR iter,
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# define UCASEMAP_BREAK_ITERATOR_NULL NULL,
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#endif
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U_CFUNC int32_t
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ustrcase_getCaseLocale(const char *locale);
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// TODO: swap src / dest if approved for new public api
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalToLower(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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icu::Edits *edits,
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UErrorCode &errorCode);
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalToUpper(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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icu::Edits *edits,
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UErrorCode &errorCode);
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#if !UCONFIG_NO_BREAK_ITERATION
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalToTitle(int32_t caseLocale, uint32_t options,
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icu::BreakIterator *iter,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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icu::Edits *edits,
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UErrorCode &errorCode);
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#endif
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalFold(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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icu::Edits *edits,
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UErrorCode &errorCode);
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/**
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* Common string case mapping implementation for ucasemap_toXyz() and UnicodeString::toXyz().
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* Implements argument checking.
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*/
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U_CFUNC int32_t
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ustrcase_map(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UStringCaseMapper *stringCaseMapper,
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icu::Edits *edits,
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UErrorCode &errorCode);
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/**
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* Common string case mapping implementation for old-fashioned u_strToXyz() functions
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* that allow the source string to overlap the destination buffer.
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* Implements argument checking and internally works with an intermediate buffer if necessary.
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*/
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U_CFUNC int32_t
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ustrcase_mapWithOverlap(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UStringCaseMapper *stringCaseMapper,
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UErrorCode &errorCode);
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/**
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* UTF-8 string case mapping function type, used by ucasemap_mapUTF8().
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* UTF-8 version of UStringCaseMapper.
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* All error checking must be done.
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* The UCaseMap must be fully initialized, with locale and/or iter set as needed.
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* src and dest must not overlap.
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*/
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typedef int32_t U_CALLCONV
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UTF8CaseMapper(int32_t caseLocale, uint32_t options,
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#if !UCONFIG_NO_BREAK_ITERATION
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icu::BreakIterator *iter,
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#endif
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uint8_t *dest, int32_t destCapacity,
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const uint8_t *src, int32_t srcLength,
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icu::Edits *edits,
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UErrorCode &errorCode);
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#if !UCONFIG_NO_BREAK_ITERATION
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/** Implements UTF8CaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ucasemap_internalUTF8ToTitle(int32_t caseLocale, uint32_t options,
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icu::BreakIterator *iter,
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uint8_t *dest, int32_t destCapacity,
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const uint8_t *src, int32_t srcLength,
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icu::Edits *edits,
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UErrorCode &errorCode);
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#endif
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/**
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* Implements argument checking and buffer handling
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* for UTF-8 string case mapping as a common function.
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*/
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U_CFUNC int32_t
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ucasemap_mapUTF8(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
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uint8_t *dest, int32_t destCapacity,
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const uint8_t *src, int32_t srcLength,
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UTF8CaseMapper *stringCaseMapper,
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icu::Edits *edits,
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UErrorCode &errorCode);
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U_NAMESPACE_BEGIN
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namespace GreekUpper {
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// Data bits.
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static const uint32_t UPPER_MASK = 0x3ff;
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static const uint32_t HAS_VOWEL = 0x1000;
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static const uint32_t HAS_YPOGEGRAMMENI = 0x2000;
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static const uint32_t HAS_ACCENT = 0x4000;
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static const uint32_t HAS_DIALYTIKA = 0x8000;
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// Further bits during data building and processing, not stored in the data map.
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static const uint32_t HAS_COMBINING_DIALYTIKA = 0x10000;
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static const uint32_t HAS_OTHER_GREEK_DIACRITIC = 0x20000;
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static const uint32_t HAS_VOWEL_AND_ACCENT = HAS_VOWEL | HAS_ACCENT;
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static const uint32_t HAS_VOWEL_AND_ACCENT_AND_DIALYTIKA =
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HAS_VOWEL_AND_ACCENT | HAS_DIALYTIKA;
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static const uint32_t HAS_EITHER_DIALYTIKA = HAS_DIALYTIKA | HAS_COMBINING_DIALYTIKA;
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// State bits.
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static const uint32_t AFTER_CASED = 1;
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static const uint32_t AFTER_VOWEL_WITH_ACCENT = 2;
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uint32_t getLetterData(UChar32 c);
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/**
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* Returns a non-zero value for each of the Greek combining diacritics
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* listed in The Unicode Standard, version 8, chapter 7.2 Greek,
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* plus some perispomeni look-alikes.
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*/
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uint32_t getDiacriticData(UChar32 c);
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} // namespace GreekUpper
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U_NAMESPACE_END
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#endif // __cplusplus
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#endif // __UCASEMAP_IMP_H__
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