[dev-context] 2 patches for grph-inc

[Aditya Mahajan]

On Thu, 13 Sep 2012, Peter Münster wrote:

> On Fri, Sep 07 2012, Aditya Mahajan wrote:
>
>>> +   \edef\current_width{\externalfigureparameter\c!width}%
>>> +   \edef\current_height{\externalfigureparameter\c!height}%
>>> +   \def\nocrap##1{\doifnotemptyvalue{##1}{%
>>> +       \the\dimexpr\csname##1\endcsname\relax}}%
>>
>> It is better to use a more meaningful name. This can be a general macro that
>> will be useful outside of the figure inclusion code as well.
>
> Ok. What about \scratch_current_width, \scratch_current_height,
> \scratch_nocrap ?  Or something similar...

Hans already added a generic function \setemeasure to syst-aux, that can 
be used here.

Note that a simple \doifnotemptyvalue is not enough. I can pass values
like 'fit', 'max', etc to height and width keys, so you must check if what 
is being passed is a dimension before calling \dimexpr.

Aditya