I've been mulling over how best to handle compressed postscript files
with InsetExternal.
<ramble>
insetgraphics.C has some special-casing code to handle compressed
files (which latex can handle in their compressed state). Rather than
retain this special-casing code in insetexternal.C, I wonder if it is
possible to sweep it away entirely by defining Formats "ps_gz",
"ps_bz2", "ps_Z".
I'm imagining a PostscriptImage external template
Template PostscriptImage
InputFormat "ps, eps, ps_gz, ps_bz2, ps_Z"
FileFilter "*.{ps,eps,ps.gz,ps.bz2,ps.Z}"
Format LaTeX
# LaTeX can handle these formats natively.
# Ie, no conversion is required.
FormatEnd
Format PDFLaTeX
UpdateFormat pdf
UpdateResult "$$Basename.pdf"
FormatEnd
TemplateEnd
It will require some modification to GetExtension in
support/filetools.[Ch] to return these 'compressed formats' (should
also be renamed as getFormat...), but no other compiled code I think.
Just additions to the Formats and Converters.
The graphics display code would remain unchanged as
string const filename = zippedFile(filename_) ?
unzipFile(filename_) : filename_;
Does this sound like a plausible road-map?
Before I get carried away, however, I'll note that PostscriptImage and
the existing RasterImage template differ only so:
Template RasterImage
InputFormat "*"
FileFilter "*.{gif,png,jpg,bmp,pbm,ppm,tga,tif,xpm,xbm}"
Format LaTeX
UpdateFormat eps
UpdateResult "$$Basename.eps"
FormatEnd
Format PDFLaTeX
UpdateFormat png
UpdateResult "$$Basename.png"
FormatEnd
TemplateEnd
In addition, I can imagine a PDFImage template that differs trivially
again:
Template PDFImage
InputFormat "pdf"
FileFilter "*.pdf"
Format LaTeX
UpdateFormat eps
UpdateResult "$$Basename.eps"
FormatEnd
Format PDFLaTeX
# No conversion is required.
FormatEnd
TemplateEnd
Somehow, it feels like we should be able to merge all three of these
templates into an über template
Template ÜberImage
InputFormat "*"
FileFilter "*.{gif,png,jpg,bmp,pbm,ppm,tga,tif,xpm,xbm}
*.{ps,eps,ps.gz,ps.bz2,ps.Z}
*.pdf"
Format LaTeX
UpdateFormat "ps, eps, ps_gz, ps_bz2, ps_Z"
UpdateResult "$$Basename.$$FormatExtension"
FormatEnd
Format PDFLaTeX
UpdateFormat "png, pdf"
UpdateResult "$$Basename.$$FormatExtension"
FormatEnd
TemplateEnd
This would require some modifications to the InsetExternal code to
choose the appropriate UpdateFormat.
<\ramble>
Sorry for the rambling, but I'm unsure how best to proceed. Can you
put me out of my misery?
--
Angus
