# (xemacs.info)TeX Print

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20.1.2.2 TeX Printing Commands
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You can invoke TeX as an inferior of Emacs on either the entire
contents of the buffer or just a region at a time.  Running TeX in this
way on just one chapter is a good way to see what your changes look
like without taking the time to format the entire file.

C-c C-r'
Invoke TeX on the current region, plus the buffer's header
(tex-region').

C-c C-b'
Invoke TeX on the entire current buffer (tex-buffer').

C-c C-l'
Recenter the window showing output from the inferior TeX so that
the last line can be seen (tex-recenter-output-buffer').

C-c C-k'
Kill the inferior TeX (tex-kill-job').

C-c C-p'
Print the output from the last C-c C-r' or C-c C-b' command
(tex-print').

C-c C-q'
Show the printer queue (tex-show-print-queue').

You can pass the current buffer through an inferior TeX using C-c
C-b' (tex-buffer').  The formatted output appears in a file in /tmp';
to print it, type C-c C-p' (tex-print').  Afterward use C-c C-q'
(tex-show-print-queue') to view the progress of your output towards
being printed.

The console output from TeX, including any error messages, appears
in a buffer called *TeX-shell*'.  If TeX gets an error, you can switch
to this buffer and feed it input (this works as in Shell mode; Note:
Interactive Shell).  Without switching to this buffer, you can scroll
it so that its last line is visible by typing C-c C-l'.

Type C-c C-k' (tex-kill-job') to kill the TeX process if you see
that its output is no longer useful.  Using C-c C-b' or C-c C-r' also
kills any TeX process still running.

You can pass an arbitrary region through an inferior TeX by typing
C-c C-r' (tex-region').  This is tricky, however, because most files
of TeX input contain commands at the beginning to set parameters and
define macros.  Without them, no later part of the file will format
correctly.  To solve this problem, C-c C-r' allows you to designate a
part of the file as containing essential commands; it is included
before the specified region as part of the input to TeX.  The
designated part of the file is called the "header".

To indicate the bounds of the header in Plain TeX mode, insert two
special strings in the file: %**start of header' before the header,
and %**end of header' after it.  Each string must appear entirely on
one line, but there may be other text on the line before or after.  The
lines containing the two strings are included in the header.  If
%**start of header' does not appear within the first 100 lines of the
buffer, C-c C-r' assumes there is no header.

In LaTeX mode, the header begins with \documentstyle' and ends with
\begin{document}'.  These are commands that LaTeX requires you to use,
so you don't need to do anything special to identify the header.

When you enter either kind of TeX mode, Emacs calls with no
arguments the value of the variable text-mode-hook', if that value
exists and is not nil'.  Emacs then calls the variable TeX-mode-hook'
and either plain-TeX-mode-hook' or LaTeX-mode-hook' under the same
conditions.

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