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1 package com.opensymphony.module.sitemesh.html;
2
3 import com.opensymphony.module.sitemesh.html.util.CharArray;
4
5 public abstract class BlockExtractingRule extends BasicRule {
6
7 private boolean includeEnclosingTags;
8
9 protected BlockExtractingRule(boolean includeEnclosingTags, String acceptableTagName) {
10 super(acceptableTagName);
11 this.includeEnclosingTags = includeEnclosingTags;
12 }
13
14 protected BlockExtractingRule(boolean includeEnclosingTags) {
15 this.includeEnclosingTags = includeEnclosingTags;
16 }
17
18 public void process(Tag tag) {
19 if (tag.getType() == Tag.OPEN) {
20 if (includeEnclosingTags) {
21 tag.writeTo(context.currentBuffer());
22 }
23 context.pushBuffer(createBuffer());
24 start(tag);
25 } else if (tag.getType() == Tag.CLOSE) {
26 end(tag);
27 context.popBuffer();
28 if (includeEnclosingTags) {
29 tag.writeTo(context.currentBuffer());
30 }
31 }
32 }
33
34 protected void start(Tag tag) {
35 }
36
37 protected void end(Tag tag) {
38 }
39
40 protected CharArray createBuffer() {
41 return new CharArray(512);
42 }
43
44 }