sal/osl/w32/path_helper.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_sal.hxx"
  33
  34 /*******************************************************************
  35  Includes
  36  ******************************************************************/
  37
  38 #include "path_helper.hxx"
  39 #include <osl/diagnose.h>
  40 #include <rtl/ustring.hxx>
  41
  42 #include <algorithm>
  43 #include <wchar.h>
  44
  45 /*******************************************************************
  46  Constants
  47  ******************************************************************/
  48
  49 const rtl::OUString BACKSLASH = rtl::OUString::createFromAscii("\\");
  50 const rtl::OUString SLASH     = rtl::OUString::createFromAscii("/");
  51
  52 /*******************************************************************
  53  osl_systemPathEnsureSeparator
  54  ******************************************************************/
  55
  56 void osl_systemPathEnsureSeparator(/*inout*/ rtl_uString** ppustrPath)
  57 {
  58     OSL_PRECOND(ppustrPath && (NULL != *ppustrPath), \
  59                 "osl_systemPathEnsureSeparator: Invalid parameter");
  60
  61      rtl::OUString path(*ppustrPath);
  62     sal_Int32     i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  63
  64     if (i < (path.getLength()-1))
  65     {
  66         path += BACKSLASH;
  67         rtl_uString_assign(ppustrPath, path.pData);
  68     }
  69
  70     OSL_POSTCOND(path.lastIndexOf(BACKSLASH) == (path.getLength() - 1), \
  71                  "osl_systemPathEnsureSeparator: Post condition failed");
  72 }
  73
  74 /*******************************************************************
  75  osl_systemPathRemoveSeparator
  76  ******************************************************************/
  77
  78 void SAL_CALL osl_systemPathRemoveSeparator(/*inout*/ rtl_uString** ppustrPath)
  79 {
  80     rtl::OUString path(*ppustrPath);
  81
  82     if (!osl::systemPathIsLogicalDrivePattern(path))
  83     {
  84         sal_Int32 i = std::max<sal_Int32>(path.lastIndexOf(BACKSLASH), path.lastIndexOf(SLASH));
  85
  86         if (i > -1 && (i == (path.getLength() - 1)))
  87         {
  88             path = rtl::OUString(path.getStr(), path.getLength() - 1);
  89             rtl_uString_assign(ppustrPath, path.pData);
  90         }
  91     }
  92 }
  93
  94 /*******************************************************************
  95  osl_is_logical_drive_pattern
  96  ******************************************************************/
  97
  98 // is [A-Za-z]:[/|\]\0
  99 const sal_Char* LDP                    = ":";
 100 const sal_Char* LDP_WITH_BACKSLASH     = ":\\";
 101 const sal_Char* LDP_WITH_SLASH         = ":/";
 102
 103 // degenerated case returned by the Windows FileOpen dialog
 104 // when someone enters for instance "x:filename", the Win32
 105 // API accepts this case
 106 const sal_Char* LDP_WITH_DOT_BACKSLASH = ":.\\";
 107
 108 sal_Int32 osl_systemPathIsLogicalDrivePattern(/*in*/ const rtl_uString* pustrPath)
 109 {
 110     const sal_Unicode* p = rtl_uString_getStr(const_cast<rtl_uString*>(pustrPath));
 111     if (iswalpha(*p++))
 112     {
 113         return ((0 == rtl_ustr_ascii_compare(p, LDP)) ||
 114                 (0 == rtl_ustr_ascii_compare(p, LDP_WITH_BACKSLASH)) ||
 115                 (0 == rtl_ustr_ascii_compare(p, LDP_WITH_SLASH)) ||
 116                 (0 == rtl_ustr_ascii_compare(p, LDP_WITH_DOT_BACKSLASH)));
 117     }
 118     return 0;
 119 }
 120
 121