🚀 go-pugleaf

Daniel Pfeiffer (pfeiffer@cix.cict.fr) wrote:
> I want to read and parse every line in a file that contains no
> empty lines:
> [...]
> I read from a file whose lines are all uniform, and recognized by \@parse.
> When I get to the end of the file the value of \@theline is \par.  So I
> figured I'd test for the end with \ifx\@theline\par.  Problem is that
> \loop tries to read everything upto \repeat but falls flat on it's face
> when it sees the \par.

The reason for this is that \loop is not defined as a \long macro. You
could redefine \loop so that it is. However, as Rainer Sch\"opf pointed
out, the preferred way of testing for the end of file is with \ifeof.

>   Alternate solutions to parsing every line in a file are also welcome!

I think you might find Midnight/dolines.tex [.doc] useful. Also, since I'm
advertising anyway, I think that Midnight/loop.tex is more convenient to
use than plain TeX's \loop macro. (It doesn't have \long definitions either;
I'll correct that in future releases.)

dolines.tex, dolines.doc, loop.tex, and loop.doc are available from
ymir.claremont.edu [134.173.4.23], directory [tex.inputs.midnight].
(You need loop.tex to use dolines.tex.)


                                          Marcel van der Goot
 .----------------------------------------------------------------
 | Blauw de viooltjes,                    marcel@vlsi.cs.caltech.edu
 |    Rood zijn de rozen;
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