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package org.antlr.runtime;

A Token object like we'd use in ANTLR 2.x; has an actual string created and associated with this object. These objects are needed for imaginary tree nodes that have payload objects. We need to create a Token object that has a string; the tree node will point at this token. CommonToken has indexes into a char stream and hence cannot be used to introduce new strings.
/** A Token object like we'd use in ANTLR 2.x; has an actual string created * and associated with this object. These objects are needed for imaginary * tree nodes that have payload objects. We need to create a Token object * that has a string; the tree node will point at this token. CommonToken * has indexes into a char stream and hence cannot be used to introduce * new strings. */
public class ClassicToken implements Token { protected String text; protected int type; protected int line; protected int charPositionInLine; protected int channel=DEFAULT_CHANNEL;
What token number is this from 0..n-1 tokens
/** What token number is this from 0..n-1 tokens */
protected int index; public ClassicToken(int type) { this.type = type; } public ClassicToken(Token oldToken) { text = oldToken.getText(); type = oldToken.getType(); line = oldToken.getLine(); charPositionInLine = oldToken.getCharPositionInLine(); channel = oldToken.getChannel(); } public ClassicToken(int type, String text) { this.type = type; this.text = text; } public ClassicToken(int type, String text, int channel) { this.type = type; this.text = text; this.channel = channel; } @Override public int getType() { return type; } @Override public void setLine(int line) { this.line = line; } @Override public String getText() { return text; } @Override public void setText(String text) { this.text = text; } @Override public int getLine() { return line; } @Override public int getCharPositionInLine() { return charPositionInLine; } @Override public void setCharPositionInLine(int charPositionInLine) { this.charPositionInLine = charPositionInLine; } @Override public int getChannel() { return channel; } @Override public void setChannel(int channel) { this.channel = channel; } @Override public void setType(int type) { this.type = type; } @Override public int getTokenIndex() { return index; } @Override public void setTokenIndex(int index) { this.index = index; } @Override public CharStream getInputStream() { return null; } @Override public void setInputStream(CharStream input) { } @Override public String toString() { String channelStr = ""; if ( channel>0 ) { channelStr=",channel="+channel; } String txt = getText(); if ( txt!=null ) { txt = txt.replaceAll("\n","\\\\n"); txt = txt.replaceAll("\r","\\\\r"); txt = txt.replaceAll("\t","\\\\t"); } else { txt = "<no text>"; } return "[@"+getTokenIndex()+",'"+txt+"',<"+type+">"+channelStr+","+line+":"+getCharPositionInLine()+"]"; } }