pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / highlighter / src / java / org / apache / lucene / search / highlight / SimpleHTMLEncoder.java

diff --git a/lucene-java-3.5.0/lucene/contrib/highlighter/src/java/org/apache/lucene/search/highlight/SimpleHTMLEncoder.java b/lucene-java-3.5.0/lucene/contrib/highlighter/src/java/org/apache/lucene/search/highlight/SimpleHTMLEncoder.java
new file mode 100644 (file)
index 0000000..30bf38b
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+++ b/lucene-java-3.5.0/lucene/contrib/highlighter/src/java/org/apache/lucene/search/highlight/SimpleHTMLEncoder.java
@@ -0,0 +1,81 @@
+package org.apache.lucene.search.highlight;
+/**
+ * Copyright 2005 The Apache Software Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Simple {@link Encoder} implementation to escape text for HTML output
+ *
+ */
+public class SimpleHTMLEncoder implements Encoder
+{
+       public SimpleHTMLEncoder()
+       {
+       }
+
+       public String encodeText(String originalText)
+       {
+               return htmlEncode(originalText);
+       }
+       
+       /**
+        * Encode string into HTML
+        */
+       public final static String htmlEncode(String plainText) 
+       {
+               if (plainText == null || plainText.length() == 0)
+               {
+                       return "";
+               }
+
+               StringBuilder result = new StringBuilder(plainText.length());
+
+               for (int index=0; index<plainText.length(); index++) 
+               {
+                       char ch = plainText.charAt(index);
+
+                       switch (ch) 
+                       {
+                       case '"':
+                               result.append("&quot;");
+                               break;
+
+                       case '&':
+                               result.append("&amp;");
+                               break;
+
+                       case '<':
+                               result.append("&lt;");
+                               break;
+
+                       case '>':
+                               result.append("&gt;");
+                               break;
+
+                       default:
+                                  if (ch < 128) 
+                                  {
+                                  result.append(ch);
+                              } 
+                                  else 
+                              {
+                                  result.append("&#").append((int)ch).append(";");
+                              }
+                       }
+               }
+
+               return result.toString();
+       }
+}
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