parens matching not matching all matching parens

[Arjan Bos <Arjan.Bos@nospam.ISeeYou.nl>]

Hi all,

I'm currently developing yet another rich text format writer. And as you 
might know, RTF is using curly braces a lot. Alas, every now and then, a 
normal parentheses pops up between a set of matching {}. Both the parens 
matching colouring and the forward-sexp / backward-sexp can't handle 
this. How can I (help to) solve this?

An rtf snippet is included here:

{\rtf1\mac\ansicpg10000\uc1
{\*\pnseclvl4\pnlcltr\pnstart1\pnindent720\pnhang{\pntxta )}}}

This is a complete piece of (non-sensical, but correct) rtf. The first 
`{' matches the last `}'. Only C-M-f jumps from the first `{' to the 
one-to-last `}'.

I'm wondering if this is a bug or not.

TIA,

Arjan


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