From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <paolo.bonzini@lu.unisi.ch>
Subject: Re: [PATCH 1/3] git-branch: add --track and --no-track options
Date: Mon, 05 Mar 2007 18:22:24 +0100
Message-ID: <45EC51D0.7000406@lu.unisi.ch>
References: <esgm1m$33f$1@sea.gmane.org> <Pine.LNX.4.63.0703051520340.22628@wbgn013.biozentrum.uni-wuerzburg.de> <45EC35B2.2070808@lu.unisi.ch> <Pine.LNX.4.63.0703051701331.22628@wbgn013.biozentrum.uni-wuerzburg.de>
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To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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>>>> +	/* Try an exact match first.  */
>>>> +	sscanf(value, "refs/%*[^:]:%n", &len_first);
>>> This is the first time I saw that sscanf format type. How portable is it?
>> It is.  At the very least it is in OpenGroup.
> 
> That is not very reassuring for me. However, I learnt something new about 
> sscanf(), so it was not lost on me.

Google books reveals that it's called a "scanset" (I didn't know that either).  I found it in "C: The Complete Reference" by Herb Schildt (2000) and "POSIX Programmer's Guide" by D.A. Lewine (1991).  I don't have K&R at hand to check.

Paolo