X-Git-Url: http://jaekl.net/gitweb/?p=cfb.git;a=blobdiff_plain;f=prod%2Fnet%2Fjaekl%2Fcfb%2Futil%2FXmlEscape.java;fp=prod%2Fnet%2Fjaekl%2Fcfb%2Futil%2FXmlEscape.java;h=9e177bbd9a9b0bbca87ea91647dd418fcecdc6f7;hp=0000000000000000000000000000000000000000;hb=e9a80ba4b35ce25d00d259038c7d2cb0a954dcc4;hpb=4b7b597ce11de6d85ac77c089e1eb7ca0cb30f66

diff --git a/prod/net/jaekl/cfb/util/XmlEscape.java b/prod/net/jaekl/cfb/util/XmlEscape.java
new file mode 100644
index 0000000..9e177bb
--- /dev/null
+++ b/prod/net/jaekl/cfb/util/XmlEscape.java
@@ -0,0 +1,39 @@
+package net.jaekl.cfb.util;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class XmlEscape {
+	// The following code adapted from:
+	// http://stackoverflow.com/questions/439298/best-way-to-encode-text-data-for-xml-in-java#439311
+	private final static String ESCAPE_CHARS = "<>&\"\'";
+	private final static List<String> ESCAPE_STRINGS = 
+			Collections.unmodifiableList(Arrays.asList(new String[] {"&lt;", "&gt;", "&amp;", "&quot;", "&apos;" }));
+	
+	//should only use for the content of an attribute or tag      
+	public static String toEscaped(String content) {
+		String result = content;
+		
+		if ((content != null) && (content.length() > 0)) {
+			boolean modified = false;
+			StringBuilder stringBuilder = new StringBuilder(content.length());
+			for (int i = 0, count = content.length(); i < count; ++i) {
+				String character = content.substring(i, i + 1);
+				int pos = ESCAPE_CHARS.indexOf(character);
+				if (pos > -1) {
+					stringBuilder.append(ESCAPE_STRINGS.get(pos));
+					modified = true;
+				}
+				else {
+				    stringBuilder.append(character);
+				}
+			}
+			if (modified) {
+			    result = stringBuilder.toString();
+			}
+		}
+		
+		return result;
+	}
+}