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Newlines in script filter feedback "arg"

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The `arg` part of a script filter's result (the bit passed on as {query}) is oddly an XML attribute instead of an element. This makes it harder to pass on newlines in results--they just turn into spaces. The trick is to escape the newlines as an entity reference like:


Most XML escape functions won't do that automatically, so you probably need to it yourself. Possibly double-quotes too. The best thing I came up with in Python is:


from xml.sax.saxutils import escape

safe_arg = escape(any_crazy_text, {'"': '"', '\n': '
'} )



I'd be happy to hear that there's a simpler way.


Just passing this on since it stumped me at first.

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