From mboxrd@z Thu Jan  1 00:00:00 1970
From: julia.lawall@lip6.fr (Julia Lawall)
Date: Sun, 9 Mar 2014 08:13:22 +0100 (CET)
Subject: [Cocci] Determination of the number for named function
 parameters
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On Sun, 9 Mar 2014, SF Markus Elfring wrote:

> >> I find the use of the element "n" (the name in square brackets) not obvious from
> >> the Coccinelle manual so far.
> > 
> > It is the number of elements that have been matched.
> 
> A part of my difficulty with interpretation of the grammar for the semantic
> patch language came from this notation.
> 
> "metadecl ::= ...
>             | parameter [list] ids ;
>             | parameter list [ id ] ids ;
> ..."
> 
> 
> Do square brackets indicate in one line that an information is optional while in
> the other line they should be used as literals?

Yes.  The spaces around the [ ] means that they are tokens.

julia