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CrySystem/ZipDirFindRW.h

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+//////////////////////////////////////////////////////////////////////////
+// Declaration of the class that can be used to search for the entries
+// in a zip dir cache
+
+#ifndef _ZIP_DIR_SEARCH_RW_HDR_
+#define _ZIP_DIR_SEARCH_RW_HDR_
+
+namespace ZipDir
+{
+
+// create this structure and loop:
+//  FindData fd (pZip);
+//  for (fd.FindFirst("*.cgf"); fd.GetFileEntry(); fd.FindNext())
+//  {} // inside the loop, use GetFileEntry() and GetFileName() to get the file entry and name records
+class FindDataRW
+{
+public:
+	FindDataRW (FileEntryTree* pRoot):
+		m_pRoot (pRoot),
+		m_pDirHeader (NULL)
+		{
+		}
+
+		// returns the directory to which the current object belongs
+	FileEntryTree* GetParentDir() {return m_pDirHeader;}
+protected:
+	// initializes everything until the point where the file must be searched for
+	// after this call returns successfully (with true returned), the m_szWildcard
+	// contains the file name/wildcard and m_pDirHeader contains the directory where
+	// the file (s) are to be found
+	bool PreFind (const char* szWildcard);
+
+	// matches the file wilcard in the m_szWildcard to the given file/dir name
+	// this takes into account the fact that xxx. is the alias name for xxx
+	bool MatchWildcard(const char* szName);
+
+	// the directory inside which the current object (file or directory) is being searched
+	FileEntryTree* m_pDirHeader;
+
+	FileEntryTree* m_pRoot; // the root of the zip file in which to search
+
+	// the actual wildcard being used in the current scan - the file name wildcard only!
+	char m_szWildcard[_MAX_PATH];
+};
+
+
+class FindFileRW: public FindDataRW
+{
+public:
+	FindFileRW (FileEntryTree* pRoot):
+		FindDataRW(pRoot)
+		{
+		}
+	// if bExactFile is passed, only the file is searched, and besides with the exact name as passed (no wildcards)
+	bool FindFirst (const char* szWildcard);
+
+	FileEntry* FindExact (const char* szPath);
+
+	// goes on to the next file entry
+	bool FindNext ();
+
+	FileEntry* GetFileEntry();
+	const char* GetFileName ();
+
+protected:
+	bool SkipNonMatchingFiles();
+	FileEntryTree::FileMap::iterator m_itFile; // the current file iterator inside the parent directory
+};
+
+class FindDirRW: public FindDataRW
+{
+public:
+	FindDirRW (FileEntryTree* pRoot):
+		FindDataRW(pRoot)
+		{
+		}
+	// if bExactFile is passed, only the file is searched, and besides with the exact name as passed (no wildcards)
+	bool FindFirst (const char* szWildcard);
+
+	FileEntryTree* FindExact (const char* szPath);
+
+	// goes on to the next file entry
+	bool FindNext ();
+
+	FileEntryTree* GetDirEntry();
+	const char* GetDirName ();
+
+protected:
+	bool SkipNonMatchingDirs();
+	FileEntryTree::SubdirMap::iterator m_itDir; // the current dir index inside the parent directory
+};
+}
+
+#endif