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author | vvvv <vvvv@yandex-team.ru> | 2022-03-19 03:08:17 +0300 |
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committer | vvvv <vvvv@yandex-team.ru> | 2022-03-19 03:08:17 +0300 |
commit | a5903a6577baec274cc9b12cb8f6310a6d909288 (patch) | |
tree | 691b05518934c908d56b814d9362ce70bcac0413 /contrib/libs/icu/common/unisetspan.h | |
parent | 91c4444d50a2eb5df5072ef181a6f2bd5471b77b (diff) | |
download | ydb-a5903a6577baec274cc9b12cb8f6310a6d909288.tar.gz |
don't export pg_wrapper in opensource build yet
ref:4e1943a79707d4ee2518b60ffd3919b3e6341d12
Diffstat (limited to 'contrib/libs/icu/common/unisetspan.h')
-rw-r--r-- | contrib/libs/icu/common/unisetspan.h | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/contrib/libs/icu/common/unisetspan.h b/contrib/libs/icu/common/unisetspan.h deleted file mode 100644 index f1e78ff3ee..0000000000 --- a/contrib/libs/icu/common/unisetspan.h +++ /dev/null @@ -1,157 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -****************************************************************************** -* -* Copyright (C) 2007, International Business Machines -* Corporation and others. All Rights Reserved. -* -****************************************************************************** -* file name: unisetspan.h -* encoding: UTF-8 -* tab size: 8 (not used) -* indentation:4 -* -* created on: 2007mar01 -* created by: Markus W. Scherer -*/ - -#ifndef __UNISETSPAN_H__ -#define __UNISETSPAN_H__ - -#include "unicode/utypes.h" -#include "unicode/uniset.h" - -U_NAMESPACE_BEGIN - -/* - * Implement span() etc. for a set with strings. - * Avoid recursion because of its exponential complexity. - * Instead, try multiple paths at once and track them with an IndexList. - */ -class UnicodeSetStringSpan : public UMemory { -public: - /* - * Which span() variant will be used? - * The object is either built for one variant and used once, - * or built for all and may be used many times. - */ - enum { - FWD = 0x20, - BACK = 0x10, - UTF16 = 8, - UTF8 = 4, - CONTAINED = 2, - NOT_CONTAINED = 1, - - ALL = 0x3f, - - FWD_UTF16_CONTAINED = FWD | UTF16 | CONTAINED, - FWD_UTF16_NOT_CONTAINED = FWD | UTF16 | NOT_CONTAINED, - FWD_UTF8_CONTAINED = FWD | UTF8 | CONTAINED, - FWD_UTF8_NOT_CONTAINED = FWD | UTF8 | NOT_CONTAINED, - BACK_UTF16_CONTAINED = BACK | UTF16 | CONTAINED, - BACK_UTF16_NOT_CONTAINED= BACK | UTF16 | NOT_CONTAINED, - BACK_UTF8_CONTAINED = BACK | UTF8 | CONTAINED, - BACK_UTF8_NOT_CONTAINED = BACK | UTF8 | NOT_CONTAINED - }; - - UnicodeSetStringSpan(const UnicodeSet &set, const UVector &setStrings, uint32_t which); - - // Copy constructor. Assumes which==ALL for a frozen set. - UnicodeSetStringSpan(const UnicodeSetStringSpan &otherStringSpan, const UVector &newParentSetStrings); - - ~UnicodeSetStringSpan(); - - /* - * Do the strings need to be checked in span() etc.? - * @return TRUE if strings need to be checked (call span() here), - * FALSE if not (use a BMPSet for best performance). - */ - inline UBool needsStringSpanUTF16(); - inline UBool needsStringSpanUTF8(); - - // For fast UnicodeSet::contains(c). - inline UBool contains(UChar32 c) const; - - int32_t span(const UChar *s, int32_t length, USetSpanCondition spanCondition) const; - - int32_t spanBack(const UChar *s, int32_t length, USetSpanCondition spanCondition) const; - - int32_t spanUTF8(const uint8_t *s, int32_t length, USetSpanCondition spanCondition) const; - - int32_t spanBackUTF8(const uint8_t *s, int32_t length, USetSpanCondition spanCondition) const; - -private: - // Special spanLength byte values. - enum { - // The spanLength is >=0xfe. - LONG_SPAN=0xfe, - // All code points in the string are contained in the parent set. - ALL_CP_CONTAINED=0xff - }; - - // Add a starting or ending string character to the spanNotSet - // so that a character span ends before any string. - void addToSpanNotSet(UChar32 c); - - int32_t spanNot(const UChar *s, int32_t length) const; - int32_t spanNotBack(const UChar *s, int32_t length) const; - int32_t spanNotUTF8(const uint8_t *s, int32_t length) const; - int32_t spanNotBackUTF8(const uint8_t *s, int32_t length) const; - - // Set for span(). Same as parent but without strings. - UnicodeSet spanSet; - - // Set for span(not contained). - // Same as spanSet, plus characters that start or end strings. - UnicodeSet *pSpanNotSet; - - // The strings of the parent set. - const UVector &strings; - - // Pointer to the UTF-8 string lengths. - // Also pointer to further allocated storage for meta data and - // UTF-8 string contents as necessary. - int32_t *utf8Lengths; - - // Pointer to the part of the (utf8Lengths) memory block that stores - // the lengths of span(), spanBack() etc. for each string. - uint8_t *spanLengths; - - // Pointer to the part of the (utf8Lengths) memory block that stores - // the UTF-8 versions of the parent set's strings. - uint8_t *utf8; - - // Number of bytes for all UTF-8 versions of strings together. - int32_t utf8Length; - - // Maximum lengths of relevant strings. - int32_t maxLength16; - int32_t maxLength8; - - // Set up for all variants of span()? - UBool all; - - // Memory for small numbers and lengths of strings. - // For example, for 8 strings: - // 8 UTF-8 lengths, 8*4 bytes span lengths, 8*2 3-byte UTF-8 characters - // = 112 bytes = int32_t[28]. - int32_t staticLengths[32]; -}; - -UBool UnicodeSetStringSpan::needsStringSpanUTF16() { - return (UBool)(maxLength16!=0); -} - -UBool UnicodeSetStringSpan::needsStringSpanUTF8() { - return (UBool)(maxLength8!=0); -} - -UBool UnicodeSetStringSpan::contains(UChar32 c) const { - return spanSet.contains(c); -} - -U_NAMESPACE_END - -#endif |