import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;
import java.io.IOException;

/*
PROSPACE SCHEMATIC FILE
; Version 2006.3.2
Project,Space Planning-Projekt,,
0,,7,1.5,1.5,1,1,0,,1,1,0,0,0,0,3,1,1,0,1,0,0,0,0,2,3,1,0,1,0,0,0,0,3,3,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,0,0,0,0,0,0,0,0,0,0,,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,2,2,2,2,,0,0,0,0,0,0,0,0,,,0,
Planogram,Test,,
100,200,60,16777215,2,1,100,10,60,1,16777215,0,10,2,0,32896,1,0,0,1,0,,,-1,-1,-1,-1,0,0,0,-1,-1,-1,-1,-1,-1,0,0,0,-1,-1,-1,-1,-1,-1,0,0,0,-1,-1,0,1,2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,,,1,,,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,2,,,,0,0,0,0,0,0,0,0,,,,0.5,30,30,0,0,0,0,0,0,1.5,1.5,1,1,0,0,0,0,0,0,0,0,,,,,,F766F39C-5610-4cedAB0A-FDFD4D6DC166,,,,,0
Segment,,,
0,100,0,0,0,0,0,0,0,0,0,,,,,,,,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1,0,,
*/

public class ProspaceParser<E extends Exception> {
	
	private final ProspaceHandler<E> handler;
	
	public ProspaceParser(ProspaceHandler<E> handler) {
		this.handler = handler;
	}
	
	public void parse(BufferedReader in) throws IOException, E {
		String magic = in.readLine();
		if (!magic.equals("PROSPACE SCHEMATIC FILE")) throw new IOException("bad magic: " + magic);
		handler.start();
		
		String line;
		
		while (((line = in.readLine()) != null) && line.startsWith(";")) {
			String header = line.substring(1).trim();
			handler.header(header);
		}
		
		while (line != null) {
			String[] metadata = line.split(",", -1); // this form of split does not discard trailing empty strings, a common gotcha
			line = in.readLine();
			String[] data = line.split(",", -1);
			handler.paragraph(metadata, data);
			line = in.readLine();
		}
		
		in.close(); // not sure if you need to do this if you've read to the end of the stream
		
		handler.end();
	}
	
	public void parse(InputStream in, String charset) throws IOException, E {
		parse(new BufferedReader(new InputStreamReader(in, charset)));
	}
	
}