Add LZMA.

3rdparty/lzma-21.03beta/CPP/7zip/Archive/Common/ItemNameUtils.cpp

@@ -0,0 +1,112 @@
+// Archive/Common/ItemNameUtils.cpp
+
+#include "StdAfx.h"
+
+#include "ItemNameUtils.h"
+
+namespace NArchive {
+namespace NItemName {
+
+static const wchar_t kOsPathSepar = WCHAR_PATH_SEPARATOR;
+
+#if WCHAR_PATH_SEPARATOR != L'/'
+static const wchar_t kUnixPathSepar = L'/';
+#endif
+
+void ReplaceSlashes_OsToUnix
+#if WCHAR_PATH_SEPARATOR != L'/'
+  (UString &name)
+  {
+    name.Replace(kOsPathSepar, kUnixPathSepar);
+  }
+#else
+  (UString &) {}
+#endif
+
+
+UString GetOsPath(const UString &name)
+{
+  #if WCHAR_PATH_SEPARATOR != L'/'
+    UString newName = name;
+    newName.Replace(kUnixPathSepar, kOsPathSepar);
+    return newName;
+  #else
+    return name;
+  #endif
+}
+
+
+UString GetOsPath_Remove_TailSlash(const UString &name)
+{
+  if (name.IsEmpty())
+    return UString();
+  UString newName = GetOsPath(name);
+  if (newName.Back() == kOsPathSepar)
+    newName.DeleteBack();
+  return newName;
+}
+
+
+void ReplaceToOsSlashes_Remove_TailSlash(UString &name, bool
+    #if WCHAR_PATH_SEPARATOR != L'/'
+      useBackslashReplacement
+    #endif
+    )
+{
+  if (name.IsEmpty())
+    return;
+
+  #if WCHAR_PATH_SEPARATOR != L'/'
+  {
+    // name.Replace(kUnixPathSepar, kOsPathSepar);
+    const unsigned len = name.Len();
+    for (unsigned i = 0; i < len; i++)
+    {
+      wchar_t c = name[i];
+      if (c == L'/')
+        c = WCHAR_PATH_SEPARATOR;
+      else if (useBackslashReplacement && c == L'\\')
+        c = WCHAR_IN_FILE_NAME_BACKSLASH_REPLACEMENT; // WSL scheme
+      else
+        continue;
+      name.ReplaceOneCharAtPos(i, c);
+    }
+  }
+  #endif
+    
+  if (name.Back() == kOsPathSepar)
+    name.DeleteBack();
+}
+
+
+bool HasTailSlash(const AString &name, UINT
+  #if defined(_WIN32) && !defined(UNDER_CE)
+    codePage
+  #endif
+  )
+{
+  if (name.IsEmpty())
+    return false;
+  char c;
+    #if defined(_WIN32) && !defined(UNDER_CE)
+    if (codePage != CP_UTF8)
+      c = *CharPrevExA((WORD)codePage, name, name.Ptr(name.Len()), 0);
+    else
+    #endif
+    {
+      c = name.Back();
+    }
+  return (c == '/');
+}
+
+
+#ifndef _WIN32
+UString WinPathToOsPath(const UString &name)
+{
+  UString newName = name;
+  newName.Replace(L'\\', WCHAR_PATH_SEPARATOR);
+  return newName;
+}
+#endif
+
+}}