vcl/inc/strhelper.hxx

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   9  * This file incorporates work covered by the following license notice:
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  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef INCLUDED_VCL_STRHELPER_HXX
  20 #define INCLUDED_VCL_STRHELPER_HXX
  21
  22 #include <cstring>
  23 #include <rtl/math.hxx>
  24 #include <rtl/ustring.hxx>
  25 #include <vcl/dllapi.h>
  26
  27 namespace psp
  28 {
  29     OUString GetCommandLineToken( int, const OUString& );
  30     OString GetCommandLineToken(int, const OString&);
  31     // gets one token of a unix command line style string
  32     // doublequote, singlequote and singleleftquote protect their respective
  33     // contents
  34
  35     int GetCommandLineTokenCount(const OUString&);
  36     // returns number of tokens (zero if empty or whitespace only)
  37
  38     OUString WhitespaceToSpace( std::u16string_view, bool bProtect = true );
  39     OString WhitespaceToSpace(std::string_view);
  40     // returns a string with multiple adjacent occurrences of whitespace
  41     // converted to a single space. if bProtect is sal_True (nonzero), then
  42     // doublequote, singlequote and singleleftquote protect their respective
  43     // contents
  44
  45
  46     // parses the first double in the string; decimal is '.' only
  47     inline double StringToDouble( std::u16string_view rStr )
  48     {
  49         return rtl::math::stringToDouble(rStr, u'.', u'\0');
  50     }
  51
  52     inline double StringToDouble(std::string_view rStr)
  53     {
  54         return rtl::math::stringToDouble(rStr, '.', static_cast<char>(0));
  55     }
  56
  57     // fills a character buffer with the string representation of a double
  58     // the buffer has to be long enough (e.g. 128 bytes)
  59     // returns the string len
  60     inline int getValueOfDouble( char* pBuffer, double f, int nPrecision = 0)
  61     {
  62         OString aStr( rtl::math::doubleToString( f, rtl_math_StringFormat_G, nPrecision, '.', true ) );
  63         int nLen = aStr.getLength();
  64         std::strncpy( pBuffer, aStr.getStr(), nLen+1 ); // copy string including terminating zero
  65         return nLen;
  66     }
  67
  68 } // namespace
  69
  70 #endif // INCLUDED_VCL_STRHELPER_HXX
  71
  72 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */