strhelper.hxx

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#ifndef INCLUDED_VCL_STRHELPER_HXX
#define INCLUDED_VCL_STRHELPER_HXX

#include <cstring>
#include <rtl/math.hxx>
#include <rtl/ustring.hxx>
#include <vcl/dllapi.h>

namespace psp
{
    OUString GetCommandLineToken( int, const OUString& );
    OString GetCommandLineToken(int, const OString&);
    // gets one token of a unix command line style string
    // doublequote, singlequote and singleleftquote protect their respective
    // contents

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

    OUString WhitespaceToSpace( std::u16string_view, bool bProtect = true );
    OString WhitespaceToSpace(std::string_view);
    // returns a string with multiple adjacent occurrences 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 StringToDouble( std::u16string_view rStr )
    {
        return rtl::math::stringToDouble(rStr, u'.', u'\0');
    }

    inline double StringToDouble(std::string_view rStr)
    {
        return rtl::math::stringToDouble(rStr, '.', static_cast<char>(0));
    }

    // 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 getValueOfDouble( char* pBuffer, double f, int nPrecision = 0)
    {
        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 // INCLUDED_VCL_STRHELPER_HXX

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