[pclasses-cvs] pclasses2/include/pclasses/System Mime.h,1.5,1.6

[stephan b. <sg...@us...>]

Update of /cvsroot/pclasses/pclasses2/include/pclasses/System
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv31114/include/pclasses/System

Modified Files:
	Mime.h 
Log Message:
added readDatabase(istream) and writeDatabase(ostream).

Index: Mime.h
===================================================================
RCS file: /cvsroot/pclasses/pclasses2/include/pclasses/System/Mime.h,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -d -r1.5 -r1.6
--- Mime.h	24 Dec 2004 15:13:34 -0000	1.5
+++ Mime.h	24 Dec 2004 16:23:24 -0000	1.6
@@ -121,6 +121,8 @@
 
 	   @fixme: should not re-insert existing file extension mappings
 	   into mimeToFilesMap().
+
+	   @fixme: allow file_ext to e ba space-separated list of extensions.
 	*/
 	void mapExtension(const MimeType& type, const std::string & file_ext );
     
@@ -143,6 +145,54 @@
 	const MimeType * findByFileExt(const std::string& fileExt) const;
 
 	/**
+	   UNTESTED.
+
+	   For each file extension mapping for key, the extension is
+	   push_back()'d to target.
+
+	   Returns the number of items added to target.
+
+	   ListT must be compatible with std::list<std::string>.
+	*/
+	template <typename ListT>
+	size_t extensionsForMimeType( const MimeType & key, ListT & target ) const
+	{
+		MimeToFilesMap::const_iterator it = mimeToFilesMap().lower_bound( key ),
+			et = mimeToFilesMap().upper_bound( key );
+		size_t count = 0;
+		for( ; et != it; ++it )
+		{
+			++count;
+			target.push_back( (*it).second );
+		}
+		return count;
+	}
+
+	/**
+	   UNTESTED.
+
+	   For each mime type associated with the given extension, the mime type is
+	   push_back()'d to target.
+
+	   Returns the number of items added to target.
+
+	   ListT must be compatible with std::list<MimeType>.
+	*/
+	template <typename ListT>
+	size_t mimeTypesForExtension( const std::string & ext, ListT & target ) const
+	{
+		FileToMimesMap::const_iterator it = fileToMimesMap().lower_bound( ext ),
+			et = mimeToFilesMap().upper_bound( ext );
+		size_t count = 0;
+		for( ; et != it; ++it )
+		{
+			++count;
+			target.push_back( (*it).second );
+		}
+		return count;
+	}
+
+	/**
 	   An iterator to the first string-to-mime map entry.
 	*/
 	inline const_iterator begin() const
@@ -201,6 +251,20 @@
 	const FileToMimesMap & fileToMimesMap() const
 	{ return this->m_rexts; }
 
+	/**
+	   Writes the current database state to the given ostream,
+	   using the conventional mime.types db format.
+	*/
+	void writeDatabase( std::ostream & );
+
+	/**
+	   Parses in a mime.types-format file from the given stream.
+	   Returns the number of mime type entries parsed from the
+	   stream.
+	*/
+	size_t readDatabase( std::istream & );
+
+	void clear();
 
   private:
 	MimeTypeMap m_types;