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alice.util.jedit
Class KeywordMap  view KeywordMap download KeywordMap.java

java.lang.Object
  extended byalice.util.jedit.KeywordMap

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 $

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

map

private KeywordMap.Keyword[] map

ignoreCase

private boolean ignoreCase
Constructor Detail

KeywordMap

public KeywordMap(boolean ignoreCase)
Creates a new KeywordMap.


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.


add

public void add(java.lang.String keyword,
                byte id)
Adds a key-value mapping.


getIgnoreCase

public boolean getIgnoreCase()
Returns true if the keyword map is set to be case insensitive, false otherwise.


setIgnoreCase

public void setIgnoreCase(boolean ignoreCase)
Sets if the keyword map should be case insensitive.


getStringMapKey

protected int getStringMapKey(java.lang.String s)

getSegmentMapKey

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