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org.apache.commons.jelly.util.TagUtils |
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1 | /* |
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2 | * Copyright 2002,2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.jelly.util; |
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17 | ||
18 | import org.apache.commons.jelly.JellyTagException; |
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19 | import org.apache.commons.jelly.Script; |
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20 | import org.apache.commons.jelly.impl.CompositeTextScriptBlock; |
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21 | import org.apache.commons.jelly.impl.ScriptBlock; |
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22 | import org.apache.commons.jelly.impl.TextScript; |
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23 | import org.apache.commons.jelly.impl.WeakReferenceWrapperScript; |
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24 | ||
25 | /** Contains static methods to help tag developers. |
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26 | * @author Hans Gilde |
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27 | * |
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28 | */ |
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29 | public class TagUtils { |
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30 | 0 | private TagUtils() { |
31 | ||
32 | 0 | } |
33 | ||
34 | /** Trims the whitespace from a script and its children. |
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35 | * |
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36 | */ |
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37 | public static void trimScript(Script body) { |
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38 | 2880 | synchronized(body) { |
39 | 2880 | if (body instanceof WeakReferenceWrapperScript) { |
40 | 1416 | WeakReferenceWrapperScript wrrs = (WeakReferenceWrapperScript) body; |
41 | try { |
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42 | 1416 | wrrs.trimWhitespace(); |
43 | 1416 | } catch (JellyTagException e) { |
44 | //TODO handle this exception once the Tag interface allows JellyTagException to be thrown |
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45 | 0 | return; |
46 | 1416 | } |
47 | 1464 | } else if ( body instanceof CompositeTextScriptBlock ) { |
48 | 15 | CompositeTextScriptBlock block = (CompositeTextScriptBlock) body; |
49 | 15 | block.trimWhitespace(); |
50 | } |
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51 | else |
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52 | 1449 | if ( body instanceof ScriptBlock ) { |
53 | 1275 | ScriptBlock block = (ScriptBlock) body; |
54 | 1275 | block.trimWhitespace(); |
55 | } |
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56 | 174 | else if ( body instanceof TextScript ) { |
57 | 57 | TextScript textScript = (TextScript) body; |
58 | 57 | textScript.trimWhitespace(); |
59 | } |
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60 | 2880 | } |
61 | 2880 | } |
62 | ||
63 | } |
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