diff options
Diffstat (limited to 'other-licenses/7zstub/src/Common/Wildcard.cpp')
| -rw-r--r-- | other-licenses/7zstub/src/Common/Wildcard.cpp | 462 |
1 files changed, 462 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/Common/Wildcard.cpp b/other-licenses/7zstub/src/Common/Wildcard.cpp new file mode 100644 index 000000000..4b9e754e7 --- /dev/null +++ b/other-licenses/7zstub/src/Common/Wildcard.cpp @@ -0,0 +1,462 @@ +// Common/Wildcard.cpp
+
+#include "StdAfx.h"
+
+#include "Wildcard.h"
+
+static const wchar_t kPeriodChar = L'.';
+static const wchar_t kAnyCharsChar = L'*';
+static const wchar_t kAnyCharChar = L'?';
+
+#ifdef _WIN32
+static const wchar_t kDirDelimiter1 = L'\\';
+#endif
+static const wchar_t kDirDelimiter2 = L'/';
+
+static const UString kWildCardCharSet = L"?*";
+
+static const UString kIllegalWildCardFileNameChars=
+ L"\x1\x2\x3\x4\x5\x6\x7\x8\x9\xA\xB\xC\xD\xE\xF"
+ L"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
+ L"\"/:<>\\|";
+
+static const UString kIllegalFileNameChars = kIllegalWildCardFileNameChars +
+ kWildCardCharSet;
+
+static inline bool IsCharDirLimiter(wchar_t c)
+{
+ return (
+ #ifdef _WIN32
+ c == kDirDelimiter1 ||
+ #endif
+ c == kDirDelimiter2);
+}
+
+// -----------------------------------------
+// this function tests is name matches mask
+// ? - any wchar_t or empty
+// * - any characters or empty
+
+static bool EnhancedMaskTest(const UString &mask, int maskPos,
+ const UString &name, int namePos)
+{
+ int maskLen = mask.Length() - maskPos;
+ int nameLen = name.Length() - namePos;
+ if (maskLen == 0)
+ if (nameLen == 0)
+ return true;
+ else
+ return false;
+ wchar_t maskChar = mask[maskPos];
+ if(maskChar == kAnyCharChar)
+ {
+ /*
+ if (EnhancedMaskTest(mask, maskPos + 1, name, namePos))
+ return true;
+ */
+ if (nameLen == 0)
+ return false;
+ return EnhancedMaskTest(mask, maskPos + 1, name, namePos + 1);
+ }
+ else if(maskChar == kAnyCharsChar)
+ {
+ if (EnhancedMaskTest(mask, maskPos + 1, name, namePos))
+ return true;
+ if (nameLen == 0)
+ return false;
+ return EnhancedMaskTest(mask, maskPos, name, namePos + 1);
+ }
+ else
+ {
+ wchar_t c = name[namePos];
+ if (maskChar != c)
+#ifdef _WIN32
+ if (MyCharUpper(maskChar) != MyCharUpper(c))
+#endif
+ return false;
+ return EnhancedMaskTest(mask, maskPos + 1, name, namePos + 1);
+ }
+}
+
+// --------------------------------------------------
+// Splits path to strings
+
+void SplitPathToParts(const UString &path, UStringVector &pathParts)
+{
+ pathParts.Clear();
+ UString name;
+ int len = path.Length();
+ if (len == 0)
+ return;
+ for (int i = 0; i < len; i++)
+ {
+ wchar_t c = path[i];
+ if (IsCharDirLimiter(c))
+ {
+ pathParts.Add(name);
+ name.Empty();
+ }
+ else
+ name += c;
+ }
+ pathParts.Add(name);
+}
+
+void SplitPathToParts(const UString &path, UString &dirPrefix, UString &name)
+{
+ int i;
+ for(i = path.Length() - 1; i >= 0; i--)
+ if(IsCharDirLimiter(path[i]))
+ break;
+ dirPrefix = path.Left(i + 1);
+ name = path.Mid(i + 1);
+}
+
+UString ExtractDirPrefixFromPath(const UString &path)
+{
+ int i;
+ for(i = path.Length() - 1; i >= 0; i--)
+ if(IsCharDirLimiter(path[i]))
+ break;
+ return path.Left(i + 1);
+}
+
+UString ExtractFileNameFromPath(const UString &path)
+{
+ int i;
+ for(i = path.Length() - 1; i >= 0; i--)
+ if(IsCharDirLimiter(path[i]))
+ break;
+ return path.Mid(i + 1);
+}
+
+
+bool CompareWildCardWithName(const UString &mask, const UString &name)
+{
+ return EnhancedMaskTest(mask, 0, name, 0);
+}
+
+bool DoesNameContainWildCard(const UString &path)
+{
+ return (path.FindOneOf(kWildCardCharSet) >= 0);
+}
+
+
+// ----------------------------------------------------------'
+// NWildcard
+
+namespace NWildcard {
+
+static inline int BoolToIndex(bool value)
+{
+ return value ? 1: 0;
+}
+
+
+/*
+M = MaskParts.Size();
+N = TestNameParts.Size();
+
+ File Dir
+ForFile req M<=N [N-M, N) -
+ nonreq M=N [0, M) -
+
+ForDir req M<N [0, M) ... [N-M-1, N-1) same as ForBoth-File
+ nonreq [0, M) same as ForBoth-File
+
+ForBoth req m<=N [0, M) ... [N-M, N) same as ForBoth-File
+ nonreq [0, M) same as ForBoth-File
+
+*/
+
+bool CItem::CheckPath(const UStringVector &pathParts, bool isFile) const
+{
+ if (!isFile && !ForDir)
+ return false;
+ int delta = (int)pathParts.Size() - (int)PathParts.Size();
+ if (delta < 0)
+ return false;
+ int start = 0;
+ int finish = 0;
+ if (isFile)
+ {
+ if (!ForDir && !Recursive && delta !=0)
+ return false;
+ if (!ForFile && delta == 0)
+ return false;
+ if (!ForDir && Recursive)
+ start = delta;
+ }
+ if (Recursive)
+ {
+ finish = delta;
+ if (isFile && !ForFile)
+ finish = delta - 1;
+ }
+ for (int d = start; d <= finish; d++)
+ {
+ int i;
+ for (i = 0; i < PathParts.Size(); i++)
+ if (!CompareWildCardWithName(PathParts[i], pathParts[i + d]))
+ break;
+ if (i == PathParts.Size())
+ return true;
+ }
+ return false;
+}
+
+int CCensorNode::FindSubNode(const UString &name) const
+{
+ for (int i = 0; i < SubNodes.Size(); i++)
+ if (SubNodes[i].Name.CompareNoCase(name) == 0)
+ return i;
+ return -1;
+}
+
+void CCensorNode::AddItemSimple(bool include, CItem &item)
+{
+ if (include)
+ IncludeItems.Add(item);
+ else
+ ExcludeItems.Add(item);
+}
+
+void CCensorNode::AddItem(bool include, CItem &item)
+{
+ if (item.PathParts.Size() <= 1)
+ {
+ AddItemSimple(include, item);
+ return;
+ }
+ const UString &front = item.PathParts.Front();
+ if (DoesNameContainWildCard(front))
+ {
+ AddItemSimple(include, item);
+ return;
+ }
+ int index = FindSubNode(front);
+ if (index < 0)
+ index = SubNodes.Add(CCensorNode(front, this));
+ item.PathParts.Delete(0);
+ SubNodes[index].AddItem(include, item);
+}
+
+void CCensorNode::AddItem(bool include, const UString &path, bool recursive, bool forFile, bool forDir)
+{
+ CItem item;
+ SplitPathToParts(path, item.PathParts);
+ item.Recursive = recursive;
+ item.ForFile = forFile;
+ item.ForDir = forDir;
+ AddItem(include, item);
+}
+
+bool CCensorNode::NeedCheckSubDirs() const
+{
+ for (int i = 0; i < IncludeItems.Size(); i++)
+ {
+ const CItem &item = IncludeItems[i];
+ if (item.Recursive || item.PathParts.Size() > 1)
+ return true;
+ }
+ return false;
+}
+
+bool CCensorNode::AreThereIncludeItems() const
+{
+ if (IncludeItems.Size() > 0)
+ return true;
+ for (int i = 0; i < SubNodes.Size(); i++)
+ if (SubNodes[i].AreThereIncludeItems())
+ return true;
+ return false;
+}
+
+bool CCensorNode::CheckPathCurrent(bool include, const UStringVector &pathParts, bool isFile) const
+{
+ const CObjectVector<CItem> &items = include ? IncludeItems : ExcludeItems;
+ for (int i = 0; i < items.Size(); i++)
+ if (items[i].CheckPath(pathParts, isFile))
+ return true;
+ return false;
+}
+
+bool CCensorNode::CheckPath(UStringVector &pathParts, bool isFile, bool &include) const
+{
+ if (CheckPathCurrent(false, pathParts, isFile))
+ {
+ include = false;
+ return true;
+ }
+ include = true;
+ bool finded = CheckPathCurrent(true, pathParts, isFile);
+ if (pathParts.Size() == 1)
+ return finded;
+ int index = FindSubNode(pathParts.Front());
+ if (index >= 0)
+ {
+ UStringVector pathParts2 = pathParts;
+ pathParts2.Delete(0);
+ if (SubNodes[index].CheckPath(pathParts2, isFile, include))
+ return true;
+ }
+ return finded;
+}
+
+bool CCensorNode::CheckPath(const UString &path, bool isFile, bool &include) const
+{
+ UStringVector pathParts;
+ SplitPathToParts(path, pathParts);
+ return CheckPath(pathParts, isFile, include);
+}
+
+bool CCensorNode::CheckPath(const UString &path, bool isFile) const
+{
+ bool include;
+ if(CheckPath(path, isFile, include))
+ return include;
+ return false;
+}
+
+bool CCensorNode::CheckPathToRoot(bool include, UStringVector &pathParts, bool isFile) const
+{
+ if (CheckPathCurrent(include, pathParts, isFile))
+ return true;
+ if (Parent == 0)
+ return false;
+ pathParts.Insert(0, Name);
+ return Parent->CheckPathToRoot(include, pathParts, isFile);
+}
+
+/*
+bool CCensorNode::CheckPathToRoot(bool include, const UString &path, bool isFile) const
+{
+ UStringVector pathParts;
+ SplitPathToParts(path, pathParts);
+ return CheckPathToRoot(include, pathParts, isFile);
+}
+*/
+
+void CCensorNode::AddItem2(bool include, const UString &path, bool recursive)
+{
+ if (path.IsEmpty())
+ return;
+ bool forFile = true;
+ bool forFolder = true;
+ UString path2 = path;
+ if (IsCharDirLimiter(path[path.Length() - 1]))
+ {
+ path2.Delete(path.Length() - 1);
+ forFile = false;
+ }
+ AddItem(include, path2, recursive, forFile, forFolder);
+}
+
+void CCensorNode::ExtendExclude(const CCensorNode &fromNodes)
+{
+ ExcludeItems += fromNodes.ExcludeItems;
+ for (int i = 0; i < fromNodes.SubNodes.Size(); i++)
+ {
+ const CCensorNode &node = fromNodes.SubNodes[i];
+ int subNodeIndex = FindSubNode(node.Name);
+ if (subNodeIndex < 0)
+ subNodeIndex = SubNodes.Add(CCensorNode(node.Name, this));
+ SubNodes[subNodeIndex].ExtendExclude(node);
+ }
+}
+
+int CCensor::FindPrefix(const UString &prefix) const
+{
+ for (int i = 0; i < Pairs.Size(); i++)
+ if (Pairs[i].Prefix.CompareNoCase(prefix) == 0)
+ return i;
+ return -1;
+}
+
+void CCensor::AddItem(bool include, const UString &path, bool recursive)
+{
+ UStringVector pathParts;
+ SplitPathToParts(path, pathParts);
+ bool forFile = true;
+ if (pathParts.Back().IsEmpty())
+ {
+ forFile = false;
+ pathParts.DeleteBack();
+ }
+ const UString &front = pathParts.Front();
+ bool isAbs = false;
+ if (front.IsEmpty())
+ isAbs = true;
+ else if (front.Length() == 2 && front[1] == L':')
+ isAbs = true;
+ else
+ {
+ for (int i = 0; i < pathParts.Size(); i++)
+ {
+ const UString &part = pathParts[i];
+ if (part == L".." || part == L".")
+ {
+ isAbs = true;
+ break;
+ }
+ }
+ }
+ int numAbsParts = 0;
+ if (isAbs)
+ if (pathParts.Size() > 1)
+ numAbsParts = pathParts.Size() - 1;
+ else
+ numAbsParts = 1;
+ UString prefix;
+ for (int i = 0; i < numAbsParts; i++)
+ {
+ const UString &front = pathParts.Front();
+ if (DoesNameContainWildCard(front))
+ break;
+ prefix += front;
+ prefix += WCHAR_PATH_SEPARATOR;
+ pathParts.Delete(0);
+ }
+ int index = FindPrefix(prefix);
+ if (index < 0)
+ index = Pairs.Add(CPair(prefix));
+
+ CItem item;
+ item.PathParts = pathParts;
+ item.ForDir = true;
+ item.ForFile = forFile;
+ item.Recursive = recursive;
+ Pairs[index].Head.AddItem(include, item);
+}
+
+bool CCensor::CheckPath(const UString &path, bool isFile) const
+{
+ bool finded = false;
+ for (int i = 0; i < Pairs.Size(); i++)
+ {
+ bool include;
+ if (Pairs[i].Head.CheckPath(path, isFile, include))
+ {
+ if (!include)
+ return false;
+ finded = true;
+ }
+ }
+ return finded;
+}
+
+void CCensor::ExtendExclude()
+{
+ int i;
+ for (i = 0; i < Pairs.Size(); i++)
+ if (Pairs[i].Prefix.IsEmpty())
+ break;
+ if (i == Pairs.Size())
+ return;
+ int index = i;
+ for (i = 0; i < Pairs.Size(); i++)
+ if (index != i)
+ Pairs[i].Head.ExtendExclude(Pairs[index].Head);
+}
+
+}
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