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CrySystem/ZipDirFind.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_HDR_
+#define _ZIP_DIR_SEARCH_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 FindData
+{
+public:
+
+	FindData (DirHeader* pRoot):
+		m_pRoot (pRoot),
+		m_pDirHeader (NULL)
+		{
+		}
+
+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);
+
+	DirHeader* m_pRoot; // the zip file inwhich the search is performed
+	DirHeader* m_pDirHeader; // the header of the directory in which the files reside
+	//unsigned m_nDirEntry; // the current directory entry inside the parent directory
+
+	// the actual wildcard being used in the current scan - the file name wildcard only!
+	char m_szWildcard[_MAX_PATH];
+};
+
+class FindFile: public FindData
+{
+public:
+	FindFile (Cache* pCache):
+		FindData(pCache->GetRoot())
+		{
+		}
+	FindFile (DirHeader* pRoot):
+		FindData(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();
+	unsigned m_nFileEntry; // the current file index inside the parent directory
+};
+
+class FindDir: public FindData
+{
+public:
+	FindDir (Cache* pCache):
+		FindData(pCache->GetRoot())
+		{
+		}
+	FindDir (DirHeader* pRoot):
+		FindData(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);
+
+	// goes on to the next file entry
+	bool FindNext ();
+
+	DirEntry* GetDirEntry();
+	const char* GetDirName ();
+
+protected:
+	bool SkipNonMatchingDirs();
+	unsigned m_nDirEntry; // the current dir index inside the parent directory
+};
+}
+
+#endif