xref: /aoo41x/main/vcl/inc/vcl/strhelper.hxx (revision 0d63794c)

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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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#ifndef _PSPRINT_STRHELPER_HXX_
#define _PSPRINT_STRHELPER_HXX_

#include "vcl/dllapi.h"

#include <tools/string.hxx>
#include <rtl/math.hxx>

#include <cstring>

namespace psp {

String VCL_DLLPUBLIC GetCommandLineToken( int, const String& );
ByteString VCL_DLLPUBLIC GetCommandLineToken( int, const ByteString& );
// gets one token of a unix command line style string
// doublequote, singlequote and singleleftquote protect their respective
// contents

int VCL_DLLPUBLIC GetCommandLineTokenCount( const String& );
int VCL_DLLPUBLIC GetCommandLineTokenCount( const ByteString& );
// returns number of tokens (zero if empty or whitespace only)

String VCL_DLLPUBLIC WhitespaceToSpace( const String&, sal_Bool bProtect = sal_True );
ByteString VCL_DLLPUBLIC WhitespaceToSpace( const ByteString&, sal_Bool bProtect = sal_True );
// returns a string with multiple adjacent occurences of whitespace
// converted to a single space. if bProtect is sal_True (nonzero), then
// doublequote, singlequote and singleleftquote protect their respective
// contents


// parses the first double in the string; decimal is '.' only
inline double VCL_DLLPUBLIC StringToDouble( const String& rStr )
{
    rtl_math_ConversionStatus eStatus;
    return rtl::math::stringToDouble( rStr, sal_Unicode('.'), sal_Unicode(0), &eStatus, NULL);
}

inline double VCL_DLLPUBLIC StringToDouble( const ByteString& rStr )
{
    rtl_math_ConversionStatus eStatus;
    return rtl::math::stringToDouble( rtl::OStringToOUString( rStr, osl_getThreadTextEncoding() ), sal_Unicode('.'), sal_Unicode(0), &eStatus, NULL);
}

// fills a character buffer with the string representation of a double
// the buffer has to be long enough (e.g. 128 bytes)
// returns the string len
inline int VCL_DLLPUBLIC getValueOfDouble( char* pBuffer, double f, int nPrecision = 0)
{
    rtl::OString aStr( rtl::math::doubleToString( f, rtl_math_StringFormat_G, nPrecision, '.', true ) );
    int nLen = aStr.getLength();
    std::strncpy( pBuffer, aStr.getStr(), nLen+1 ); // copy string including terminating zero
    return nLen;
}

} // namespace

#endif // _PSPRINT_STRHELPER_HXX_