[dev-context] Fwd: Re: Definition of \doframedparentparameter

-------- Original Message -------- Subject: Re: Definition of \doframedparentparameter Date: Mon, 28 May 2012 19:38:27 +0200 From: Hans Hagen To: Marco On 28-5-2012 19:30, Marco wrote:

On 2012-05-28 Hans Hagen wrote:

...

...

\def\doframedparentparameter#1#2{\ifx#1\relax\doframedrootparameter#2\else\doframedparameter#1{#2}\fi}

...

normally #1 is a \cs and helpers like \doframedparentparameter are not user commands

I was talking about the second argument #2. If #2 is always a command, then you can write

\def\doframedparentparameter#1#2{\ifx#1\relax\doframedrootparameter#2\else\doframedparameter#1#2\fi}

if not, then

\def\doframedparentparameter#1#2{\ifx#1\relax\doframedrootparameter{#2}\else\doframedparameter#1{#2}\fi}

but the actual definition is neither of them, that is what confused me.

Users can do \setupframed[mine:whatever=wewant] and then say \framedparameter{mine:whatever}. They never see or use the #1 (being a special and abstract namespace value). It's the value of \currentframed that starts the lookup chain. Also, a lot of this low level code is optimized for performance. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------