sal/osl/w32/path_helper.cxx

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  28
  29
  30 /*******************************************************************
  31  Includes
  32  ******************************************************************/
  33
  34 #include "path_helper.hxx"
  35 #include <osl/diagnose.h>
  36 #include <rtl/ustring.hxx>
  37
  38 #include <algorithm>
  39 #include <wchar.h>
  40
  41 /*******************************************************************
  42  Constants
  43  ******************************************************************/
  44
  45 const rtl::OUString BACKSLASH ("\\");
  46 const rtl::OUString SLASH     ("/");
  47
  48 /*******************************************************************
  49  osl_systemPathEnsureSeparator
  50  ******************************************************************/
  51
  52 void osl_systemPathEnsureSeparator(/*inout*/ rtl_uString** ppustrPath)
  53 {
  54     OSL_PRECOND(ppustrPath && (NULL != *ppustrPath), \
  55                 "osl_systemPathEnsureSeparator: Invalid parameter");
  56
  57      rtl::OUString path(*ppustrPath);
  58     sal_Int32     i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  59
  60     if (i < (path.getLength()-1))
  61     {
  62         path += BACKSLASH;
  63         rtl_uString_assign(ppustrPath, path.pData);
  64     }
  65
  66     OSL_POSTCOND(path.lastIndexOf(BACKSLASH) == (path.getLength() - 1), \
  67                  "osl_systemPathEnsureSeparator: Post condition failed");
  68 }
  69
  70 /*******************************************************************
  71  osl_systemPathRemoveSeparator
  72  ******************************************************************/
  73
  74 void SAL_CALL osl_systemPathRemoveSeparator(/*inout*/ rtl_uString** ppustrPath)
  75 {
  76     rtl::OUString path(*ppustrPath);
  77
  78     if (!osl::systemPathIsLogicalDrivePattern(path))
  79     {
  80         sal_Int32 i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  81
  82         if (i > -1 && (i == (path.getLength() - 1)))
  83         {
  84             path = rtl::OUString(path.getStr(), path.getLength() - 1);
  85             rtl_uString_assign(ppustrPath, path.pData);
  86         }
  87     }
  88 }
  89
  90 /*******************************************************************
  91  osl_is_logical_drive_pattern
  92  ******************************************************************/
  93
  94 // is [A-Za-z]:[/|\]\0
  95 const sal_Char* LDP                    = ":";
  96 const sal_Char* LDP_WITH_BACKSLASH     = ":\\";
  97 const sal_Char* LDP_WITH_SLASH         = ":/";
  98
  99 // degenerated case returned by the Windows FileOpen dialog
 100 // when someone enters for instance "x:filename", the Win32
 101 // API accepts this case
 102 const sal_Char* LDP_WITH_DOT_BACKSLASH = ":.\\";
 103
 104 sal_Int32 osl_systemPathIsLogicalDrivePattern(/*in*/ const rtl_uString* pustrPath)
 105 {
 106     const sal_Unicode* p = rtl_uString_getStr(const_cast<rtl_uString*>(pustrPath));
 107     if (iswalpha(*p++))
 108     {
 109         return ((0 == rtl_ustr_ascii_compare(p, LDP)) ||
 110                 (0 == rtl_ustr_ascii_compare(p, LDP_WITH_BACKSLASH)) ||
 111                 (0 == rtl_ustr_ascii_compare(p, LDP_WITH_SLASH)) ||
 112                 (0 == rtl_ustr_ascii_compare(p, LDP_WITH_DOT_BACKSLASH)));
 113     }
 114     return 0;
 115 }
 116
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */