Placeholder with forbidden characters

[Piotr Jasiun]

1. Open placeholder sample (plugins/placeholder/samples/placeholder.html).
2. In the source mode enter:

   <p>This is a [[sample ]placeholder]].</p>
   

3. Switch back to the WYSIWYG mode.

Result: there is no placeholder.

4. In the source mode enter:

   <p>This is a [[sample >placeholder]].</p>
   

5. Switch back to the WYSIWYG mode.

Result: there is a placeholder.

6. Open placeholder dialog.
7. Press "Ok".

Result: Error message:

The placeholder can not be empty and can not contain any of following characters: [, ], <, >

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On the one hand it is not possible to upcast placeholder with ']' character, because it is forbidden, but on the other we can do it with '>'.

In my opinion it should not be possible to upcast placeholder with forbidden character but also it would be good if user would be informed that the placeholder contains forbidden character.

[Piotrek Koszuliński]

There are two problems actually. Placeholder does not encode <> characters when downcasting. I'm not sure if that shouldn't be done by htmlParser.text (constructor or writer).