sal/osl/os2/path_helper.cxx

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  27
  28 /*******************************************************************
  29  Includes
  30  ******************************************************************/
  31
  32 #include "path_helper.hxx"
  33 #include <osl/diagnose.h>
  34 #include <rtl/ustring.hxx>
  35
  36 #include <algorithm>
  37 #include <wchar.h>
  38 #include <wctype.h>
  39
  40 /*******************************************************************
  41  Constants
  42  ******************************************************************/
  43
  44 const rtl::OUString BACKSLASH = rtl::OUString::createFromAscii("\\");
  45 const rtl::OUString SLASH     = rtl::OUString::createFromAscii("/");
  46
  47 /*******************************************************************
  48  osl_systemPathEnsureSeparator
  49  ******************************************************************/
  50
  51 void osl_systemPathEnsureSeparator(/*inout*/ rtl_uString** ppustrPath)
  52 {
  53     OSL_PRECOND(ppustrPath && (NULL != *ppustrPath), \
  54                 "osl_systemPathEnsureSeparator: Invalid parameter");
  55
  56      rtl::OUString path(*ppustrPath);
  57     sal_Int32     i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  58
  59     if (i < (path.getLength()-1))
  60     {
  61         path += BACKSLASH;
  62         rtl_uString_assign(ppustrPath, path.pData);
  63     }
  64
  65     OSL_POSTCOND(path.lastIndexOf(BACKSLASH) == (path.getLength() - 1), \
  66                  "osl_systemPathEnsureSeparator: Post condition failed");
  67 }
  68
  69 /*******************************************************************
  70  osl_systemPathRemoveSeparator
  71  ******************************************************************/
  72
  73 void SAL_CALL osl_systemPathRemoveSeparator(/*inout*/ rtl_uString** ppustrPath)
  74 {
  75     rtl::OUString path(*ppustrPath);
  76
  77     if (!osl::systemPathIsLogicalDrivePattern(path))
  78     {
  79         sal_Int32 i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  80
  81         if (i > -1 && (i == (path.getLength() - 1)))
  82         {
  83             path = rtl::OUString(path.getStr(), path.getLength() - 1);
  84             rtl_uString_assign(ppustrPath, path.pData);
  85         }
  86     }
  87 }
  88
  89 /*******************************************************************
  90  osl_is_logical_drive_pattern
  91  ******************************************************************/
  92
  93 // is [A-Za-z]:[/|\]\0
  94 const sal_Unicode* LDP                    = L":";
  95 const sal_Unicode* LDP_WITH_BACKSLASH     = L":\\";
  96 const sal_Unicode* LDP_WITH_SLASH         = L":/";
  97
  98 // degenerated case returned by the Windows FileOpen dialog
  99 // when someone enters for instance "x:filename", the Win32
 100 // API accepts this case
 101 const sal_Unicode* LDP_WITH_DOT_BACKSLASH = L":.\\";
 102
 103 sal_Int32 osl_systemPathIsLogicalDrivePattern(/*in*/ const rtl_uString* pustrPath)
 104 {
 105     const sal_Unicode* p = rtl_uString_getStr(const_cast<rtl_uString*>(pustrPath));
 106     if (iswalpha(*p++))
 107     {
 108         return ((0 == wcscmp(p, LDP)) ||
 109                 (0 == wcscmp(p, LDP_WITH_BACKSLASH)) ||
 110                 (0 == wcscmp(p, LDP_WITH_SLASH)) ||
 111                 (0 == wcscmp(p, LDP_WITH_DOT_BACKSLASH)));
 112     }
 113     return 0;
 114 }
 115
 116