51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
// © 2018 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#ifndef __SOURCE_FIELDPOSUTIL_H__
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#define __SOURCE_FIELDPOSUTIL_H__
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U_NAMESPACE_BEGIN
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/**
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* Wraps a UFieldPosition and makes it usable as a FieldPosition. Example:
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*
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* <pre>
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* UFieldPositionWrapper wrapper(myUFPos);
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* u_favorite_function_taking_ufpos(wrapper);
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* // when destructed, the wrapper saves the data back into myUFPos
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* </pre>
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*/
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class UFieldPositionWrapper : public UMemory {
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public:
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explicit UFieldPositionWrapper(UFieldPosition& ufpos)
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: _ufpos(ufpos) {
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_fpos.setField(_ufpos.field);
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_fpos.setBeginIndex(_ufpos.beginIndex);
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_fpos.setEndIndex(_ufpos.endIndex);
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}
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/** When destructed, copies the information from the fpos into the ufpos. */
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~UFieldPositionWrapper() {
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_ufpos.field = _fpos.getField();
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_ufpos.beginIndex = _fpos.getBeginIndex();
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_ufpos.endIndex = _fpos.getEndIndex();
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}
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/** Conversion operator to FieldPosition */
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operator FieldPosition&() {
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return _fpos;
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}
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private:
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FieldPosition _fpos;
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UFieldPosition& _ufpos;
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};
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U_NAMESPACE_END
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#endif //__SOURCE_FIELDPOSUTIL_H__
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#endif /* #if !UCONFIG_NO_FORMATTING */
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