-
Notifications
You must be signed in to change notification settings - Fork 25
/
MarkerCache.java
71 lines (65 loc) · 2.23 KB
/
MarkerCache.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
/**
* @file MarkerCache.java
* @brief Class implementing token marker caching for efficiency.
*
* @section License
*
* Copyright (C) 2013 Robert B. Colton
* This file is a part of the LateralGM IDE.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
package org.lateralgm.components;
import java.util.HashMap;
import java.util.Map;
import org.lateralgm.joshedit.DefaultTokenMarker;
import org.lateralgm.joshedit.lexers.GLESTokenMarker;
import org.lateralgm.joshedit.lexers.GLSLTokenMarker;
import org.lateralgm.joshedit.lexers.GMLTokenMarker;
import org.lateralgm.joshedit.lexers.HLSLTokenMarker;
/**
* A non-instantiable token marker cache that avoids instantiating more
* markers than is necessary.
*
* @author Robert B. Colton
*/
public final class MarkerCache
{
/** The cached token markers keyed with the language **/
private static Map<String,DefaultTokenMarker> markers = new HashMap<String,DefaultTokenMarker>();
/**
* Get one of the cached markers or cache it if it doesn't exist.
*
* @param language
* One of available token markers, eg. "glsles", "glsl", "gml", "hlsl9", "hlsl11"
**/
public static DefaultTokenMarker getMarker(String language)
{
language = language.toLowerCase();
DefaultTokenMarker marker = markers.get(language);
if (marker == null)
{
switch (language)
{
case "glsles": marker = new GLESTokenMarker(); break;
case "glsl": marker = new GLSLTokenMarker(); break;
case "hlsl9": marker = new HLSLTokenMarker(); break;
case "hlsl11": marker = new HLSLTokenMarker(); break;
case "gml": marker = new GMLTokenMarker(); break;
}
markers.put(language,marker);
}
return marker;
}
}