71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
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#include <macros.h>
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#include <fctsys.h>
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#include <wx/filename.h>
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#if !wxCHECK_VERSION( 2, 9, 0 )
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// implement missing wx2.8 function until >= wx3.0 pervades.
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static wxString wxJoin(const wxArrayString& arr, const wxChar sep,
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const wxChar escape = '\\')
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{
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size_t count = arr.size();
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if ( count == 0 )
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return wxEmptyString;
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wxString str;
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// pre-allocate memory using the estimation of the average length of the
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// strings in the given array: this is very imprecise, of course, but
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// better than nothing
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str.reserve(count*(arr[0].length() + arr[count-1].length()) / 2);
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if ( escape == wxT('\0') )
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{
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// escaping is disabled:
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for ( size_t i = 0; i < count; i++ )
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{
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if ( i )
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str += sep;
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str += arr[i];
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}
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}
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else // use escape character
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{
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for ( size_t n = 0; n < count; n++ )
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{
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if ( n )
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str += sep;
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for ( wxString::const_iterator i = arr[n].begin(),
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end = arr[n].end();
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i != end;
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++i )
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{
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const wxChar ch = *i;
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if ( ch == sep )
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str += escape; // escape this separator
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str += ch;
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}
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}
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}
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str.Shrink(); // release extra memory if we allocated too much
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return str;
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}
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#endif
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/// Put aPriorityPath in front of all paths in the value of aEnvVar.
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const wxString PrePendPath( const wxString& aEnvVar, const wxString& aPriorityPath )
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{
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wxPathList paths;
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paths.AddEnvList( aEnvVar );
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paths.Insert( aPriorityPath, 0 );
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return wxJoin( paths, wxPATH_SEP[0] );
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}
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