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[Groff] PostScript in groff
From: |
Miklos Somogyi |
Subject: |
[Groff] PostScript in groff |
Date: |
Wed, 26 Jul 2006 23:43:16 +1000 |
In my previous post re this subject I wrote that the \X'ps: file ...'
scheme uploaded the named PS file
into the final PS form of the document verbatim.
Unfortunately this is not true.
I stated this because I was only looking at passing parameters,
contents of number registers and strings
to PS and `trf' supports these, but the `file' construct does not look
for backslashes.
However, as I just found it out, it does look for something else.
Ascii85 encoding of image files is like having your cake and eat it: it
is much smaller than asciihex, and it is still ascii.
It maps image data into the [!...u] character range, and that contains
\ and %.
Because of the backslashes such a file can not be read-in via `trf',
but I thought that `file' would be ok.
Unfortunately this one looks for `%!' and does not copy lines starting
with these two characters.
Since you can not exclude the possibility of such a combination,
ascii85 encoded files are out.
Miklos
- [Groff] PostScript in groff,
Miklos Somogyi <=