The current version of the external inset code is not very friendly if the
external file does not exist.
> From: Kornelia Pietsch
> Date: 2003-07-28 15:04:16
> If the xfig file does not exist (cannot be found), then the
> generation of the dvi/pdf file fails. Would be nice to do
> as the graphics inset does (a box containing "<file name> not found"
> in the resulting dvi/pdf file).
> Also, each time we fail to find the xfig file we get a little
> error box popping up to tell us. Should have a max of one error box.
> Maybe none.
I show the relevant part of the xfig template below:
Template XFig
Format LaTeX
Product "\\input{$$Basename.pstex_t}"
UpdateFormat pstex
UpdateResult "$$Basename.pstex_t"
Requirement "graphicx"
FormatEnd
TemplateEnd
It seems to me that there are two possible solution strategies.
1. Output some clever latex in the 'Product' line. Something along the lines
of (psuedo code)
if (exists($$Basename.pstex_t))
\\input{$$Basename.pstex_t}
else
\\fbox{$$Basename.pstex_t not found}
This puts the responsibility on LaTeX to do the right thing. Other export
formats will continue to work AFAICS.
2. Extend the ExternalTemplate syntax to accommodate a ProductFailed command
Product "\\input{$$Basename.pstex_t}"
ProductFailed "\\fbox{$$Basename.pstex_t not found}"
This leaves us with the responsibility to check that the conversion (ie
generation of "UpdateResult") has succeeded.
Personally, I favour approach #1, but my latex knowledge is not up to the
task. Can some guru help me out?
--
Angus
