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annotate src/luan/lib/HtmlLib.java @ 49:8ede219cd111

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add WebShell git-svn-id: https://luan-java.googlecode.com/svn/trunk@50 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 28 Dec 2012 19:35:04 +0000
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children f86e4f77ef32
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rev   line source
49
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1 package luan.lib;
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3 import luan.LuanState;
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4 import luan.LuanTable;
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5 import luan.LuanJavaFunction;
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8 public final class HtmlLib {
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10 public static void register(LuanState luan) {
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11 LuanTable module = new LuanTable();
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12 LuanTable global = luan.global();
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13 global.put("html",module);
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14 try {
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15 add( module, "encode", String.class );
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16 } catch(NoSuchMethodException e) {
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17 throw new RuntimeException(e);
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18 }
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19 }
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21 private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException {
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22 t.put( method, new LuanJavaFunction(HtmlLib.class.getMethod(method,parameterTypes),null) );
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23 }
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25 public static String encode(String s) {
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26 char[] a = s.toCharArray();
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27 StringBuilder buf = new StringBuilder();
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28 for( int i=0; i<a.length; i++ ) {
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29 char c = a[i];
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30 switch(c) {
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31 case '&':
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32 buf.append("&amp;");
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33 break;
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34 case '<':
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35 buf.append("&lt;");
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36 break;
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37 case '>':
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38 buf.append("&gt;");
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39 break;
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40 case '"':
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41 buf.append("&quot;");
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42 break;
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43 default:
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44 buf.append(c);
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45 }
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46 }
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47 return buf.toString();
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48 }
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50 }