[jdom-interest] Toward beta 9

[Bradley S. Huffman]

Elliotte Rusty Harold writes:

> >Verifier check for ProcessingInstruction's setData()? Elliotte can we borrow
> >the check out of XOM's Verifier?
> >
> 
> Sure. I officially grant the JDOM permission to republish that check 
> under the JDOM license rather than the LGPL.

And here's the patch for Verifier.

*** Verifier.java	Wed Apr  9 17:57:04 2003
--- Verifier.new	Wed Apr  9 17:56:01 2003
***************
*** 443,448 ****
--- 443,472 ----
          return null;
      }
  
+    /**
+      * This will check the supplied data to see if it is legal for use as
+      * <code>{@link ProcessingInstruction}</code> data. Besides checking that
+      * all the characters are allowed in XML, this also checks
+      * that the data does not contain the PI end-string "?&gt;".
+      *
+      * @param data <code>String</code> data to check.
+      * @return <code>String</code> - reason data is illegal, or
+      *         <code>null</code> if data is OK.
+      */
+     public static String checkProcessingInstructionData(String data) {
+         // Check basic XML name rules first
+         String reason = checkCharacterData(data);
+ 
+         if (reason == null) {
+             if (data.indexOf("?>") >= 0) {
+                 return "Processing instructions cannot contain " +
+                        "the string \"?>\"";
+             }
+         }
+ 
+         return reason;
+     }
+ 
      /**
       * This will check the supplied data to see if it is legal for use as
       * JDOM <code>{@link Comment}</code> data.