150 lines
4.1 KiB
C++
150 lines
4.1 KiB
C++
// © 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"
|
|
|
|
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;
|
|
|
|
void populateFieldPosition(FieldPosition &fp, int32_t offset, UErrorCode &status) const;
|
|
|
|
void populateFieldPositionIterator(FieldPositionIterator &fpi, UErrorCode &status) 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 */
|