X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=Robust%2Fsrc%2FIR%2FTree%2FParseNode.java;h=cc5009712906a8b25b50714ad90458effd21625d;hb=ac6191b514c0e54b468623bf868134e1ce809df5;hp=e5e34d2183ddaf3a29a8ca7c0cd94753245a2790;hpb=b9df1caacff3dbe5959bc12e0e6ba46500fcd3e2;p=IRC.git

diff --git a/Robust/src/IR/Tree/ParseNode.java b/Robust/src/IR/Tree/ParseNode.java
index e5e34d21..cc500971 100644
--- a/Robust/src/IR/Tree/ParseNode.java
+++ b/Robust/src/IR/Tree/ParseNode.java
@@ -1,10 +1,10 @@
 /*
- 
- Class: ParseNode
- Author: Dan Roy
- Purpose: ParseNode is used to represent a parse production
 
-*/
+   Class: ParseNode
+   Author: Dan Roy
+   Purpose: ParseNode is used to represent a parse production
+
+ */
 
 package IR.Tree;
 
@@ -12,223 +12,223 @@ import java.util.*;
 
 public class ParseNode implements Walkable {
 
-    private String label;
-    private ParseNode parent;
-    private ParseNodeVector children;
-    private int line;
-    private Object literal;
-
-    //private SymbolTable st;
-
-    public ParseNode(String label) {
-	this.label = label;
-	this.line = -1;
-	this.parent = null;
-	this.literal=null;
-	children = new ParseNodeVector();
-    }
-
-    public ParseNode ( String label, int line ) {
-	this.label = label;
-	this.line = line;
-	this.parent = null;
-	this.literal=null;
-	children = new ParseNodeVector();
-    }
-
-    public void setLabel( String label ) {
-	this.label = label;
-    }
-
-    public String getLabel() {
-	return label;
-    }
-
-    public void setLiteral(Object o) {
-	literal=o;
-    }
-
-    public Object getLiteral() {
-	return literal;
-    }
+  private String label;
+  private ParseNode parent;
+  private ParseNodeVector children;
+  private int line;
+  private Object literal;
+
+  //private SymbolTable st;
+
+  public ParseNode(String label) {
+    this.label = label;
+    this.line = -1;
+    this.parent = null;
+    this.literal=null;
+    children = new ParseNodeVector();
+  }
+
+  public ParseNode (String label, int line) {
+    this.label = label;
+    this.line = line;
+    this.parent = null;
+    this.literal=null;
+    children = new ParseNodeVector();
+  }
+
+  public void setLabel(String label) {
+    this.label = label;
+  }
+
+  public String getLabel() {
+    return label;
+  }
+
+  public void setLiteral(Object o) {
+    literal=o;
+  }
+
+  public Object getLiteral() {
+    return literal;
+  }
+
+  /*
+     public void setSymbolTable(SymbolTable st) {
+      if (st == null) {
+          throw new IRException("symboltable is null!");
+      }
+      this.st = st;
+     }
+
+     public SymbolTable getSymbolTable() {
+      if (st == null) {
+          if (parent != null) {
+              return parent.getSymbolTable();
+          } else {
+              return null;
+          }
+      } else {
+          return st;
+      }
+     }
+   */
+
+  public int getLine() {
+    if (line >= 0) {
+      return line;
+    } else {
+      if (parent != null) {
+	return parent.getLine();
+      } else {
+	return 0;
+      }
+    }
+  }
+
+  public void setParent(ParseNode parent) {
+    this.parent = parent;
+  }
+
+  public ParseNode getParent() {
+    return parent;
+  }
+
+  public ParseNode insertChild(ParseNode child) {
+    if (child == null) {
+      throw new NullPointerException("Can't add null node to parse tree");
+    }
+
+    children.insertElementAt(child, 0);
+    child.setParent(this);
+    return child;
+  }
+
+  public ParseNode insertChild(String newlabel) {
+    ParseNode child = new ParseNode(newlabel, -1);
+    return insertChild(child);
+  }
+
+  public ParseNode addChild(ParseNode child) {
+
+    if (child == null) {
+      throw new NullPointerException("Can't add null node to parse tree: "+getLabel());
+    }
+
+    children.addElement(child);
+    child.setParent(this);
+    return child;
+  }
+
+  public ParseNode addChild(String newlabel) {
+
+    ParseNode child = new ParseNode(newlabel, -1);
+    children.addElement(child);
+    child.setParent(this);
+    return child;
+  }
+
+  public ParseNode addChild(String newlabel, int line) {
+    ParseNode child = new ParseNode(newlabel, line);
+    children.addElement(child);
+    child.setParent(this);
+    return child;
+  }
+
+  public ParseNodeVector getChildren() {
+    return children;
+  }
+
+  public ParseNode getChild(String label) {
+    int i;
+    ParseNode p;
+
+    for (i = 0; i < children.size(); i++) {
+      p = children.elementAt(i);
+      if (p.getLabel().equals(label)) {
+	return p;
+      }
+    }
+
+    return null;
+  }
+
+  public ParseNode getRoot() {
+    return (parent == null) ? this : parent.getRoot();
+  }
+
+  public String getTerminal() {
+    ParseNode pn = children.elementAt(0);
+    if (pn == null) {
+      return null;
+    } else {
+      return pn.getLabel();
+    }
+  }
 
-    /*
-    public void setSymbolTable(SymbolTable st) {
-	if (st == null) {
-	    throw new IRException("symboltable is null!");
-	}
-	this.st = st;
-    }
-
-    public SymbolTable getSymbolTable() {
-	if (st == null) {
-	    if (parent != null) {
-		return parent.getSymbolTable();
-	    } else {
-		return null;
-	    }
-	} else {
-	    return st;
-	}
-    }
-    */
-
-    public int getLine() {
-	if (line >= 0) {
-	    return line;
-	} else {
-	    if (parent != null) {
-		return parent.getLine();
-	    } else {
-		return 0;
-	    }
-	}
-    }
-
-    public void setParent( ParseNode parent ) {
-	this.parent = parent;
-    }
-
-    public ParseNode getParent() {
-	return parent;
-    }
-
-    public ParseNode insertChild(ParseNode child) {
-	if (child == null) {
-	    throw new NullPointerException("Can't add null node to parse tree");
-	}
+  public ParseNode getFirstChild() {
+    return children.elementAt(0);
+  }
 
-	children.insertElementAt(child, 0);
-	child.setParent(this);
-	return child;
-    }
+  public ParseNodeVector getChildren(String label) {
+    int i;
+    ParseNodeVector v = new ParseNodeVector();
 
-    public ParseNode insertChild(String newlabel) {
-	ParseNode child = new ParseNode(newlabel, -1);
-	return insertChild(child);
+    for (i = 0; i < children.size(); i++) {
+      ParseNode pn = children.elementAt(i);
+      if (pn.getLabel().equals(label))
+	v.addElement(pn);
     }
 
-    public ParseNode addChild( ParseNode child ) {
+    return v;
+  }
 
-	if (child == null) {
-	    throw new NullPointerException("Can't add null node to parse tree: "+getLabel());
-	}
+  public String getNodeName() {
+    return label + " - " + getLine();
+  }
 
-	children.addElement (child);
-	child.setParent(this);
-	return child;
-    }
+  public int getNeighborCount() {
+    return children.size();
+  }
 
-    public ParseNode addChild( String newlabel ) {
-	
-	ParseNode child = new ParseNode(newlabel, -1);
-	children.addElement(child);
-	child.setParent(this);
-	return child;
-    }
+  public Object getNeighbor(int index) {
+    return children.elementAt(index);
+  }
 
-    public ParseNode addChild (String newlabel, int line) {
-	ParseNode child = new ParseNode(newlabel, line);
-	children.addElement(child);
-	child.setParent(this);
-	return child;
-    }
-
-    public ParseNodeVector getChildren() {
-	return children;
-    }
+  public String doIndent(int indent) {
 
-    public ParseNode getChild (String label) {
-	int i;
-	ParseNode p;
+    String output = new String();
+    for(int i=0; i<indent; i++) output += " ";
+    return output;
+  }
 
-	for (i = 0; i < children.size(); i++) {
-	    p = children.elementAt(i);
-	    if (p.getLabel().equals(label)) {
-		return p;
-	    }
-	}
+  public String PPrint(int indent, boolean recursive) {
 
-	return null;
-    }
+    String output = new String();
 
-    public ParseNode getRoot() {
-        return (parent == null) ? this : parent.getRoot();
-    }
+    if (children.size()==0) {
+      output += doIndent(indent) + "<" + label + "/>\n";
+    } else {
+      output += doIndent(indent) + "<" + label + ">\n";
+      indent += 2;
 
-    public String getTerminal () {
-	ParseNode pn = children.elementAt(0);
-	if (pn == null) {
-	    return null;
-	} else {
-	    return pn.getLabel();
+      if (recursive) {
+	for (int i = 0; i < children.size(); i++) {
+	  Walkable w = (Walkable)children.elementAt(i);
+	  output += w.PPrint(indent, true);
 	}
-    }
-
-    public ParseNode getFirstChild() {
-	return children.elementAt(0);
-    }
-
-    public ParseNodeVector getChildren(String label) {
-	int i;
-	ParseNodeVector v = new ParseNodeVector();
-
-	for (i = 0; i < children.size(); i++) {
-	    ParseNode pn = children.elementAt(i);
-	    if (pn.getLabel().equals(label))
-		v.addElement(pn);
+      } else {
+	for (int i = 0; i < children.size(); i++) {
+	  Walkable w = (Walkable)children.elementAt(i);
+	  output += doIndent(indent) + "<" + w.getNodeName() + "/>\n";
 	}
+      }
 
-	return v;
-    }
-
-    public String getNodeName() {
-	return label + " - " + getLine();
-    }
-
-    public int getNeighborCount() {
-	return children.size();
-    }
-
-    public Object getNeighbor(int index) {
-	return children.elementAt(index);
+      indent -= 2;
+      output += doIndent(indent) + "</" + label + ">\n";
     }
 
-    public String doIndent(int indent) {
-
-	String output = new String();
-        for(int i=0;i<indent;i++) output += " ";
-	return output;
-    }
-
-    public String PPrint(int indent, boolean recursive) {
-
-        String output = new String();
-
-	if (children.size()==0) {
-	    output += doIndent(indent) + "<" + label + "/>\n";
-	} else {
-	    output += doIndent(indent) + "<" + label + ">\n";
-	    indent += 2;
-	    
-	    if (recursive) {
-		for (int i = 0; i < children.size(); i++) {
-		    Walkable w = (Walkable)children.elementAt(i);
-		    output += w.PPrint(indent, true);
-		}
-	    } else {
-		for (int i = 0; i < children.size(); i++) {
-		    Walkable w = (Walkable)children.elementAt(i);
-		    output += doIndent(indent) + "<" + w.getNodeName() + "/>\n";
-		}	   
-	    }
-	    
-	    indent -= 2;
-	    output += doIndent(indent) + "</" + label + ">\n";
-	}
-
-	return output;	
-    }
+    return output;
+  }
 
 }