more common way of handling example config files (like in ncmpc) + add a few

more functions to libmpdclient implementation

src/mpdpp.cpp

@@ -533,6 +533,15 @@ void MPDConnection::StartSearch(bool exact_match) const
 		mpd_startSearch(itsConnection, exact_match);
 }
 
+void MPDConnection::StartFieldSearch(mpd_TagItems item)
+{
+	if (isConnected)
+	{
+		itsSearchedField = item;
+		mpd_startFieldSearch(itsConnection, item);
+	}
+}
+
 void MPDConnection::AddSearch(mpd_TagItems item, const string &str) const
 {
 	if (isConnected)
@@ -558,6 +567,23 @@ void MPDConnection::CommitSearch(SongList &v) const
 	}
 }
 
+void MPDConnection::CommitSearch(TagList &v) const
+{
+	if (isConnected)
+	{
+		mpd_commitSearch(itsConnection);
+		char *tag = NULL;
+		while ((tag = mpd_getNextTag(itsConnection, itsSearchedField)) != NULL)
+		{
+			string s_tag = tag;
+			if (v.empty() || v.back() != s_tag)
+				v.push_back(s_tag);
+			delete [] tag;
+		}
+		mpd_finishCommand(itsConnection);
+	}
+}
+
 void MPDConnection::GetDirectory(const string &path, ItemList &v) const
 {
 	if (isConnected)
@@ -612,7 +638,7 @@ int MPDConnection::CheckForErrors()
 {
 	int errid = 0;
 	if (itsConnection->error)
-	{	
+	{
 		if (itsConnection->error == MPD_ERROR_ACK)
 		{
 			// this is to avoid setting too small max size as we check it before fetching current status

src/mpdpp.h

@@ -140,8 +140,10 @@ class MPDConnection
 		bool SavePlaylist(const string &) const;
 		
 		void StartSearch(bool) const;
+		void StartFieldSearch(mpd_TagItems);
 		void AddSearch(mpd_TagItems, const string &) const;
-		void CommitSearch(SongList &v) const;
+		void CommitSearch(SongList &) const;
+		void CommitSearch(TagList &) const;
 		
 		void GetArtists(TagList &) const;
 		void GetAlbums(string, TagList &) const;
@@ -173,6 +175,7 @@ class MPDConnection
 		ErrorHandler itsErrorHandler;
 		void *itsErrorHandlerUserdata;
 		
+		mpd_TagItems itsSearchedField;
 		std::vector<QueueCommand *> itsQueue;
 };
 

src/ncmpcpp.cpp

@@ -1739,7 +1739,7 @@ int main(int argc, char *argv[])
 			{
 				found_pos = 0;
 				vFoundPositions.clear();
-					
+				
 				if (mLibArtists->Empty())
 				{
 					Mpd->GetArtists(vArtists);
@@ -1747,13 +1747,13 @@ int main(int argc, char *argv[])
 					for (TagList::const_iterator it = vArtists.begin(); it != vArtists.end(); it++)
 						mLibArtists->AddOption(*it);
 				}
-					
+				
 				mLibArtists->HighlightColor(Config.library_active_column_color);
 				mLibAlbums->HighlightColor(Config.main_highlight_color);
 				mLibSongs->HighlightColor(Config.main_highlight_color);
-					
+				
 				wCurrent->Hide();
-					
+				
 				REFRESH_MEDIA_LIBRARY_SCREEN;
 				
 				wCurrent = mLibArtists;