edu.northwestern.at.wordhoard.swing.calculator.cql
Class CQLQueryTokenizer

java.lang.Object
  java.io.StreamTokenizer
      edu.northwestern.at.wordhoard.swing.calculator.cql.CQLQueryTokenizer

public class CQLQueryTokenizer
extends java.io.StreamTokenizer

A tokenizer for parsing a WordHoard Corpus Query Language query.

Field Summary

protected boolean

debug True to write debugging information to System.out, false otherwise.

Fields inherited from class java.io.StreamTokenizer

nval, sval, TT_EOF, TT_EOL, TT_NUMBER, TT_WORD, ttype

Constructor Summary

CQLQueryTokenizer(java.lang.String queryString)
Create a CQL query tokenizer.

Method Summary

int	nextToken() Get next token.
void	setDebug(boolean debug) Set debug flag.

Methods inherited from class java.io.StreamTokenizer

commentChar, eolIsSignificant, lineno, lowerCaseMode, ordinaryChar, ordinaryChars, parseNumbers, pushBack, quoteChar, resetSyntax, slashSlashComments, slashStarComments, toString, whitespaceChars, wordChars

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

debug

protected boolean debug

True to write debugging information to System.out, false otherwise.

Constructor Detail

CQLQueryTokenizer

public CQLQueryTokenizer(java.lang.String queryString)

Create a CQL query tokenizer.

Parameters:

queryString - The query string.

Method Detail

nextToken

public int nextToken()

Get next token.

Overrides:

nextToken in class java.io.StreamTokenizer

Returns:

The token type. I/O errors return TT_EOF, indicating the end of file.

setDebug

public void setDebug(boolean debug)

Set debug flag.

Parameters:

debug - True to write debugging information, false otherwise.