Hi Jim,
>>>>> Jim <[email protected]> writes:
> Again, thanks for your thoughts. In the interest of improving AUCTeX a
> bit, I'd be happy to think about how to do this for ConTeXt, but I want to
> understand what must happen with LaTeX, so that any proposed changes won't
> break anything there.
Thanks for your thoughts on this.
> I think there are 6 cases of interest (but please correct me right away if
> this is incorrect):
> (1) C-c C-c and TeX-master = t
> (2) C-c C-r and TeX-master = t
> (3) C-c C-b and TeX-master = t
> (4) C-c C-c and TeX-master = <some file>
> (5) C-c C-r and TeX-master = <some file>
> (6) C-c C-b and TeX-master = <some file>
> [[ I realize there are other values of TeX-master, but according to mu
> understanding TeX-master's doc string, the other values attempt to set
> TeX-master to a file name and then it is really the "TeX-master = <some
file> " case, or if it can't get a master file, presumably we end up in
> the "TeX-master = t" case. Does that seem correct? ]]
I think so.
> What should AUCTeX do in these case? Please comment on these.
> (I fear you are going to tell me that because of bibtex of other things my
> speculation is too simple...)
> (1) Compile the current file as is, where is.
> (2) Hunt in the current buffer for the header and trailer parts,
> (3) Hunt in the current buffer for the header and trailer parts,
OK for these three cases.
> The TeX-master = <some file> case is a bit trickier, I think.
> But let me try.
> (4) compile TeX-master in its directory. No _region_.tex file created.
OK
> (5) What I think should happen:
> Hunt in the master file for the header and trailer parts;
> create _region_.tex (in the master file's directory) with
> header part
> region selected in current buffer, *excluding its header and trailer*
> (which LaTeX sub-files should not have anyway?)
Basically, yes. (When the document uses "standalone" package, the sub
files can have their own \documentclass, \begin{document} and
\end{document}. But this is exceptional case and I think we can ignore
such documents in our current discussion.)
> trailer part
> and then compile _region_.tex in the master files' directory.
> What actually happens:
> If the region includes a header or trailer
> (Q: should this ever happen in LaTeX when we are editing a file
> with TeX-master = <some file> ?)
See above.
> - the header from the master file is included
> - the trailer from the buffer is included
> - the trailer from the master file is *excluded*
These aren't right.
- If the region includes a header, it is used as-is and the header from
the master is ignored. If not, the header from the master is prepended
to the selected region.
- If the region includes a trailer, it is used as-is and the trailer
from the master is ignored. If not, the trailer from the master is
appended to the selected region.
See the following portions of `TeX-region-create':
,----
| ;; We search for the header from the master file, if it is
| ;; not present in the region.
| (header (if (string-match header-end region)
| ""
| (save-excursion
| (save-restriction
| (set-buffer master-buffer)
`----
,----
| ;; We search for the trailer from the master file, if it is
| ;; not present in the region.
| (trailer-offset 0)
| (trailer (if (string-match trailer-start region)
| ""
| (save-excursion
| (save-restriction
| (set-buffer master-buffer)
`----
> (6) What I think should happen:
> Hunt in the master file for the header and trailer parts,
> create _region_.tex with
> header part
> visible part of buffer (in case the user narrowed-to-region),
> *excluding* its header and trailer, if it has them
> trailer part
> and then compile _region_.tex.
> What actually happens:
The same with (5).
> I don't understand why the current code base is preferring the trailer from
> the buffer in cases (5) and (6).
As I wrote above, the header and the trailer are treated symmetrically
actually.
> Q: Can someone explain this to me?
> If that is a bug, then maybe it is worth fixing, if for no other reason
> than to facilitate Doing The Right Thing for ConTeXt.
I'd say that it's a bug considering that preamble-like stuff in subfiles
is common in ConTeXt documents.
Ikumi Keita
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