sal/osl/os2/path_helper.cxx

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  30
  31 /*******************************************************************
  32  Includes
  33  ******************************************************************/
  34
  35 #include "path_helper.hxx"
  36 #include <osl/diagnose.h>
  37 #include <rtl/ustring.hxx>
  38
  39 #include <algorithm>
  40 #include <wchar.h>
  41 #include <wctype.h>
  42
  43 /*******************************************************************
  44  Constants
  45  ******************************************************************/
  46
  47 const rtl::OUString BACKSLASH = rtl::OUString::createFromAscii("\\");
  48 const rtl::OUString SLASH     = rtl::OUString::createFromAscii("/");
  49
  50 /*******************************************************************
  51  osl_systemPathEnsureSeparator
  52  ******************************************************************/
  53
  54 void osl_systemPathEnsureSeparator(/*inout*/ rtl_uString** ppustrPath)
  55 {
  56     OSL_PRECOND(ppustrPath && (NULL != *ppustrPath), \
  57                 "osl_systemPathEnsureSeparator: Invalid parameter");
  58
  59      rtl::OUString path(*ppustrPath);
  60     sal_Int32     i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  61
  62     if (i < (path.getLength()-1))
  63     {
  64         path += BACKSLASH;
  65         rtl_uString_assign(ppustrPath, path.pData);
  66     }
  67
  68     OSL_POSTCOND(path.lastIndexOf(BACKSLASH) == (path.getLength() - 1), \
  69                  "osl_systemPathEnsureSeparator: Post condition failed");
  70 }
  71
  72 /*******************************************************************
  73  osl_systemPathRemoveSeparator
  74  ******************************************************************/
  75
  76 void SAL_CALL osl_systemPathRemoveSeparator(/*inout*/ rtl_uString** ppustrPath)
  77 {
  78     rtl::OUString path(*ppustrPath);
  79
  80     if (!osl::systemPathIsLogicalDrivePattern(path))
  81     {
  82         sal_Int32 i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  83
  84         if (i > -1 && (i == (path.getLength() - 1)))
  85         {
  86             path = rtl::OUString(path.getStr(), path.getLength() - 1);
  87             rtl_uString_assign(ppustrPath, path.pData);
  88         }
  89     }
  90 }
  91
  92 /*******************************************************************
  93  osl_is_logical_drive_pattern
  94  ******************************************************************/
  95
  96 // is [A-Za-z]:[/|\]\0
  97 const sal_Unicode* LDP                    = L":";
  98 const sal_Unicode* LDP_WITH_BACKSLASH     = L":\\";
  99 const sal_Unicode* LDP_WITH_SLASH         = L":/";
 100
 101 // degenerated case returned by the Windows FileOpen dialog
 102 // when someone enters for instance "x:filename", the Win32
 103 // API accepts this case
 104 const sal_Unicode* LDP_WITH_DOT_BACKSLASH = L":.\\";
 105
 106 sal_Int32 osl_systemPathIsLogicalDrivePattern(/*in*/ const rtl_uString* pustrPath)
 107 {
 108     const sal_Unicode* p = rtl_uString_getStr(const_cast<rtl_uString*>(pustrPath));
 109     if (iswalpha(*p++))
 110     {
 111         return ((0 == wcscmp(p, LDP)) ||
 112                 (0 == wcscmp(p, LDP_WITH_BACKSLASH)) ||
 113                 (0 == wcscmp(p, LDP_WITH_SLASH)) ||
 114                 (0 == wcscmp(p, LDP_WITH_DOT_BACKSLASH)));
 115     }
 116     return 0;
 117 }
 118
 119