[Xerte] How to handle wrong text entries

[Peter Huppertz]

Dear List,

I use the Nottingham template as a base for my modifications. The template 
includes a gap fill exercise which uses the textEntry icon. I want to 
expand the template to include scoring for right and wrong fills. Also I 
want to disable the feedback, because the exercise is used for a placement 
test. The only feedback is shown at the end of the test like "You answered 
xx of yy questions correct".
This is what I did:
- changed the .xwd to contain a checkbox for "Disable Feedback"
- modified the gapfill.rml not to change the type of the textfield (from 
input to dynamic) if the above option is enabled (I don't want to have the 
feedback) and disabled the feedback message
- added a score variable to the script which is played when the entered 
text of the textEntry matches the phrase
This works all fine but I still have a problem:
- If the user fills in the correct phrase and than changes the entry again 
it is still considered as correct. Even worse: if the user changes the 
entry again to the correct value the answer is counted again.
So my question is: How can I detect if the user changes the text entry to 
a wrong value? Or perhaps there is another solution for my problem I 
haven't thought of?

Peter
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