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author | Florian Dold <florian.dold@gmail.com> | 2019-04-03 15:43:32 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2019-04-03 15:45:57 +0200 |
commit | 71e285b94c7edaa43aa8115965cf5a36b8e0f80a (patch) | |
tree | 7d4aa9d0d5aff686b106cd5da72ba77960c4af43 /deps/node/deps/icu-small/source/i18n/number_stringbuilder.h | |
parent | 7dadf9356b4f3f4137ce982ea5bb960283116e9a (diff) | |
download | akono-71e285b94c7edaa43aa8115965cf5a36b8e0f80a.tar.gz akono-71e285b94c7edaa43aa8115965cf5a36b8e0f80a.tar.bz2 akono-71e285b94c7edaa43aa8115965cf5a36b8e0f80a.zip |
Node.js v11.13.0
Diffstat (limited to 'deps/node/deps/icu-small/source/i18n/number_stringbuilder.h')
-rw-r--r-- | deps/node/deps/icu-small/source/i18n/number_stringbuilder.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/deps/node/deps/icu-small/source/i18n/number_stringbuilder.h b/deps/node/deps/icu-small/source/i18n/number_stringbuilder.h new file mode 100644 index 00000000..b14ad9ed --- /dev/null +++ b/deps/node/deps/icu-small/source/i18n/number_stringbuilder.h @@ -0,0 +1,152 @@ +// © 2017 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html + +#include "unicode/utypes.h" + +#if !UCONFIG_NO_FORMATTING +#ifndef __NUMBER_STRINGBUILDER_H__ +#define __NUMBER_STRINGBUILDER_H__ + + +#include <cstdint> +#include "unicode/numfmt.h" +#include "unicode/ustring.h" +#include "cstring.h" +#include "uassert.h" +#include "number_types.h" +#include "fphdlimp.h" + +U_NAMESPACE_BEGIN namespace number { +namespace impl { + +class U_I18N_API NumberStringBuilder : public UMemory { + private: + static const int32_t DEFAULT_CAPACITY = 40; + + template<typename T> + union ValueOrHeapArray { + T value[DEFAULT_CAPACITY]; + struct { + T *ptr; + int32_t capacity; + } heap; + }; + + public: + NumberStringBuilder(); + + ~NumberStringBuilder(); + + NumberStringBuilder(const NumberStringBuilder &other); + + NumberStringBuilder &operator=(const NumberStringBuilder &other); + + int32_t length() const; + + int32_t codePointCount() const; + + inline char16_t charAt(int32_t index) const { + U_ASSERT(index >= 0); + U_ASSERT(index < fLength); + return getCharPtr()[fZero + index]; + } + + inline Field fieldAt(int32_t index) const { + U_ASSERT(index >= 0); + U_ASSERT(index < fLength); + return getFieldPtr()[fZero + index]; + } + + UChar32 getFirstCodePoint() const; + + UChar32 getLastCodePoint() const; + + UChar32 codePointAt(int32_t index) const; + + UChar32 codePointBefore(int32_t index) const; + + NumberStringBuilder &clear(); + + int32_t appendCodePoint(UChar32 codePoint, Field field, UErrorCode &status); + + int32_t insertCodePoint(int32_t index, UChar32 codePoint, Field field, UErrorCode &status); + + int32_t append(const UnicodeString &unistr, Field field, UErrorCode &status); + + int32_t insert(int32_t index, const UnicodeString &unistr, Field field, UErrorCode &status); + + int32_t insert(int32_t index, const UnicodeString &unistr, int32_t start, int32_t end, Field field, + UErrorCode &status); + + int32_t splice(int32_t startThis, int32_t endThis, const UnicodeString &unistr, + int32_t startOther, int32_t endOther, Field field, UErrorCode& status); + + int32_t append(const NumberStringBuilder &other, UErrorCode &status); + + int32_t insert(int32_t index, const NumberStringBuilder &other, UErrorCode &status); + + /** + * Gets a "safe" UnicodeString that can be used even after the NumberStringBuilder is destructed. + * */ + UnicodeString toUnicodeString() const; + + /** + * Gets an "unsafe" UnicodeString that is valid only as long as the NumberStringBuilder is alive and + * unchanged. Slightly faster than toUnicodeString(). + */ + const UnicodeString toTempUnicodeString() const; + + UnicodeString toDebugString() const; + + const char16_t *chars() const; + + bool contentEquals(const NumberStringBuilder &other) const; + + bool nextFieldPosition(FieldPosition& fp, UErrorCode& status) const; + + void getAllFieldPositions(FieldPositionIteratorHandler& fpih, UErrorCode& status) const; + + bool containsField(Field field) const; + + private: + bool fUsingHeap = false; + ValueOrHeapArray<char16_t> fChars; + ValueOrHeapArray<Field> fFields; + int32_t fZero = DEFAULT_CAPACITY / 2; + int32_t fLength = 0; + + inline char16_t *getCharPtr() { + return fUsingHeap ? fChars.heap.ptr : fChars.value; + } + + inline const char16_t *getCharPtr() const { + return fUsingHeap ? fChars.heap.ptr : fChars.value; + } + + inline Field *getFieldPtr() { + return fUsingHeap ? fFields.heap.ptr : fFields.value; + } + + inline const Field *getFieldPtr() const { + return fUsingHeap ? fFields.heap.ptr : fFields.value; + } + + inline int32_t getCapacity() const { + return fUsingHeap ? fChars.heap.capacity : DEFAULT_CAPACITY; + } + + int32_t prepareForInsert(int32_t index, int32_t count, UErrorCode &status); + + int32_t prepareForInsertHelper(int32_t index, int32_t count, UErrorCode &status); + + int32_t remove(int32_t index, int32_t count); +}; + +} // namespace impl +} // namespace number +U_NAMESPACE_END + + +#endif //__NUMBER_STRINGBUILDER_H__ + +#endif /* #if !UCONFIG_NO_FORMATTING */ |