DotParser

java.lang.Object
- weka.gui.graphvisualizer.DotParser

All Implemented Interfaces:

GraphConstants
```
public class DotParser
extends java.lang.Object
implements GraphConstants
```
This class parses input in DOT format, and builds the datastructures that are passed to it. It is NOT 100% compatible with the DOT format. The GraphNode and GraphEdge classes do not have any provision for dealing with different colours or shapes of nodes, there can however, be a different label and ID for a node. It also does not do anything for labels for edges. However, this class won't crash or throw an exception if it encounters any of the above attributes of an edge or a node. This class however, won't be able to deal with things like subgraphs and grouping of nodes.

Version:

$Revision: 10222 $ - 23 Apr 2003 - Initial version (Ashraf M. Kibriya)

Author:

Ashraf M. Kibriya (amk14@cs.waikato.ac.nz)

Field Summary
- Fields inherited from interface weka.gui.graphvisualizer.GraphConstants
  DIRECTED, DOUBLE, NORMAL, PLURAL_DUMMY, REVERSED, SINGULAR_DUMMY

Constructor Summary

Constructors
Constructor	Description
`DotParser(java.io.Reader input, java.util.ArrayList<GraphNode> nodes, java.util.ArrayList<GraphEdge> edges)`	Dot parser Constructor

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`parse()`	This method parses the string or the InputStream that we passed in through the constructor and builds up the m_nodes and m_edges vectors
`static void`	`writeDOT(java.lang.String filename, java.lang.String graphName, java.util.ArrayList<GraphNode> nodes, java.util.ArrayList<GraphEdge> edges)`	This method saves a graph in a file in DOT format.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DotParser
```
public DotParser(java.io.Reader input,
                 java.util.ArrayList<GraphNode> nodes,
                 java.util.ArrayList<GraphEdge> edges)
```
    Dot parser Constructor
    
    Parameters:
    
    input - - The input, if passing in a string then encapsulate that in String reader object
    
    nodes - - Vector to put in GraphNode objects, corresponding to the nodes parsed in from the input
    
    edges - - Vector to put in GraphEdge objects, corresponding to the edges parsed in from the input
- Method Detail
  - parse
```
public java.lang.String parse()
```
    This method parses the string or the InputStream that we passed in through the constructor and builds up the m_nodes and m_edges vectors
    
    Returns:
    
    - returns the name of the graph
  - writeDOT
```
public static void writeDOT(java.lang.String filename,
                            java.lang.String graphName,
                            java.util.ArrayList<GraphNode> nodes,
                            java.util.ArrayList<GraphEdge> edges)
```
    This method saves a graph in a file in DOT format. However, if reloaded in GraphVisualizer we would need to layout the graph again.
    
    Parameters:
    
    filename - - The name of the file to write in. (will overwrite)
    
    graphName - - The name of the graph
    
    nodes - - Vector containing all the nodes
    
    edges - - Vector containing all the edges