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alice.util.jedit
Class KeywordMap  

java.lang.Object
  alice.util.jedit.KeywordMap

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public class KeywordMap

extends java.lang.Object

A KeywordMap is similar to a hashtable in that it maps keys to values. However, the `keys' are Swing segments. This allows lookups of text substrings without the overhead of creating a new string object.

This class is used by CTokenMarker to map keywords to ids.

Version:

$Id: KeywordMap.java,v 1.16 1999/12/13 03:40:30 sp Exp $

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Nested Class Summary
(package private)  class	KeywordMap.Keyword

 

Field Summary
private  boolean	ignoreCase
private  KeywordMap.Keyword[]	map
protected  int	mapLength

 

Constructor Summary

KeywordMap(boolean ignoreCase)           Creates a new KeywordMap.

KeywordMap(boolean ignoreCase, int mapLength)           Creates a new KeywordMap.

 

Method Summary
void	add(java.lang.String keyword, byte id)           Adds a key-value mapping.
boolean	getIgnoreCase()           Returns true if the keyword map is set to be case insensitive, false otherwise.
protected  int	getSegmentMapKey(javax.swing.text.Segment s, int off, int len)
protected  int	getStringMapKey(java.lang.String s)
byte	lookup(javax.swing.text.Segment text, int offset, int length)           Looks up a key.
void	setIgnoreCase(boolean ignoreCase)           Sets if the keyword map should be case insensitive.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

mapLength

protected int mapLength

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map

private KeywordMap.Keyword[] map

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ignoreCase

private boolean ignoreCase

Constructor Detail

KeywordMap

public KeywordMap(boolean ignoreCase)

Creates a new KeywordMap.

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KeywordMap

public KeywordMap(boolean ignoreCase,
                  int mapLength)

Creates a new KeywordMap.

Method Detail

lookup

public byte lookup(javax.swing.text.Segment text,
                   int offset,
                   int length)

Looks up a key.

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add

public void add(java.lang.String keyword,
                byte id)

Adds a key-value mapping.

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getIgnoreCase

public boolean getIgnoreCase()

Returns true if the keyword map is set to be case insensitive, false otherwise.

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setIgnoreCase

public void setIgnoreCase(boolean ignoreCase)

Sets if the keyword map should be case insensitive.

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getStringMapKey

protected int getStringMapKey(java.lang.String s)

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getSegmentMapKey

protected int getSegmentMapKey(javax.swing.text.Segment s,
                               int off,
                               int len)

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