6948 lines
218 KiB
TeX
Executable File
6948 lines
218 KiB
TeX
Executable File
% texinfo.tex -- TeX macros to handle Texinfo files.
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%
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% Load plain if necessary, i.e., if running under initex.
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\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
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%
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\def\texinfoversion{2004-02-25.17}
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%
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% Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
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% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
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% Foundation, Inc.
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%
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% This texinfo.tex file is free software; you can redistribute it and/or
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% modify it under the terms of the GNU General Public License as
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% published by the Free Software Foundation; either version 2, or (at
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% your option) any later version.
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%
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% This texinfo.tex file is distributed in the hope that it will be
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% useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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% of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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% General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with this texinfo.tex file; see the file COPYING. If not, write
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% to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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% Boston, MA 02111-1307, USA.
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%
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% As a special exception, when this file is read by TeX when processing
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% a Texinfo source document, you may use the result without
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% restriction. (This has been our intent since Texinfo was invented.)
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%
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% Please try the latest version of texinfo.tex before submitting bug
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% reports; you can get the latest version from:
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% http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
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% ftp://tug.org/tex/texinfo.tex
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% (and all CTAN mirrors, see http://www.ctan.org).
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% The texinfo.tex in any given distribution could well be out
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% of date, so if that's what you're using, please check.
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%
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% Send bug reports to bug-texinfo@gnu.org. Please include including a
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% complete document in each bug report with which we can reproduce the
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% problem. Patches are, of course, greatly appreciated.
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%
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% To process a Texinfo manual with TeX, it's most reliable to use the
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% texi2dvi shell script that comes with the distribution. For a simple
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% manual foo.texi, however, you can get away with this:
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% tex foo.texi
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% texindex foo.??
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% tex foo.texi
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% tex foo.texi
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% dvips foo.dvi -o # or whatever; this makes foo.ps.
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% The extra TeX runs get the cross-reference information correct.
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% Sometimes one run after texindex suffices, and sometimes you need more
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% than two; texi2dvi does it as many times as necessary.
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%
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% It is possible to adapt texinfo.tex for other languages, to some
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% extent. You can get the existing language-specific files from the
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% full Texinfo distribution.
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%
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% The GNU Texinfo home page is http://www.gnu.org/software/texinfo.
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\message{Loading texinfo [version \texinfoversion]:}
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% If in a .fmt file, print the version number
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% and turn on active characters that we couldn't do earlier because
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% they might have appeared in the input file name.
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\everyjob{\message{[Texinfo version \texinfoversion]}%
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\catcode`+=\active \catcode`\_=\active}
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\message{Basics,}
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\chardef\other=12
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% We never want plain's \outer definition of \+ in Texinfo.
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% For @tex, we can use \tabalign.
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\let\+ = \relax
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% Save some plain tex macros whose names we will redefine.
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\let\ptexb=\b
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\let\ptexbullet=\bullet
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\let\ptexc=\c
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\let\ptexcomma=\,
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\let\ptexdot=\.
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\let\ptexdots=\dots
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\let\ptexend=\end
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\let\ptexequiv=\equiv
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\let\ptexexclam=\!
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\let\ptexfootnote=\footnote
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\let\ptexgtr=>
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\let\ptexhat=^
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\let\ptexi=\i
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\let\ptexindent=\indent
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\let\ptexnoindent=\noindent
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\let\ptexinsert=\insert
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\let\ptexlbrace=\{
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\let\ptexless=<
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\let\ptexplus=+
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\let\ptexrbrace=\}
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\let\ptexslash=\/
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\let\ptexstar=\*
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\let\ptext=\t
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% If this character appears in an error message or help string, it
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% starts a new line in the output.
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\newlinechar = `^^J
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% Use TeX 3.0's \inputlineno to get the line number, for better error
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% messages, but if we're using an old version of TeX, don't do anything.
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%
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\ifx\inputlineno\thisisundefined
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\let\linenumber = \empty % Pre-3.0.
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\else
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\def\linenumber{l.\the\inputlineno:\space}
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\fi
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% Set up fixed words for English if not already set.
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\ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi
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\ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi
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\ifx\putwordfile\undefined \gdef\putwordfile{file}\fi
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\ifx\putwordin\undefined \gdef\putwordin{in}\fi
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\ifx\putwordIndexIsEmpty\undefined \gdef\putwordIndexIsEmpty{(Index is empty)}\fi
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\ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi
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\ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi
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\ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi
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\ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi
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\ifx\putwordNoTitle\undefined \gdef\putwordNoTitle{No Title}\fi
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\ifx\putwordof\undefined \gdef\putwordof{of}\fi
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\ifx\putwordon\undefined \gdef\putwordon{on}\fi
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\ifx\putwordpage\undefined \gdef\putwordpage{page}\fi
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\ifx\putwordsection\undefined \gdef\putwordsection{section}\fi
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\ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi
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\ifx\putwordsee\undefined \gdef\putwordsee{see}\fi
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\ifx\putwordSee\undefined \gdef\putwordSee{See}\fi
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\ifx\putwordShortTOC\undefined \gdef\putwordShortTOC{Short Contents}\fi
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\ifx\putwordTOC\undefined \gdef\putwordTOC{Table of Contents}\fi
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%
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\ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi
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\ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi
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\ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi
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\ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi
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\ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi
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\ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi
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\ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi
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\ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi
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\ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi
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\ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi
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\ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi
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\ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi
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%
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\ifx\putwordDefmac\undefined \gdef\putwordDefmac{Macro}\fi
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\ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi
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\ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi
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\ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi
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\ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi
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% In some macros, we cannot use the `\? notation---the left quote is
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% in some cases the escape char.
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\chardef\colonChar = `\:
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\chardef\commaChar = `\,
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\chardef\dotChar = `\.
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\chardef\exclamChar= `\!
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\chardef\questChar = `\?
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\chardef\semiChar = `\;
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\chardef\underChar = `\_
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\chardef\spaceChar = `\ %
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\chardef\spacecat = 10
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\def\spaceisspace{\catcode\spaceChar=\spacecat}
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% Ignore a token.
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%
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\def\gobble#1{}
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% The following is used inside several \edef's.
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\def\makecsname#1{\expandafter\noexpand\csname#1\endcsname}
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% Hyphenation fixes.
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\hyphenation{
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Flor-i-da Ghost-script Ghost-view Mac-OS ap-pen-dix bit-map bit-maps
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data-base data-bases eshell fall-ing half-way long-est man-u-script
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man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm
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par-a-digms rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces
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stand-alone strong-est time-stamp time-stamps which-ever white-space
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wide-spread wrap-around
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}
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% Margin to add to right of even pages, to left of odd pages.
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\newdimen\bindingoffset
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\newdimen\normaloffset
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\newdimen\pagewidth \newdimen\pageheight
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% For a final copy, take out the rectangles
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% that mark overfull boxes (in case you have decided
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% that the text looks ok even though it passes the margin).
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%
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\def\finalout{\overfullrule=0pt}
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% @| inserts a changebar to the left of the current line. It should
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% surround any changed text. This approach does *not* work if the
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% change spans more than two lines of output. To handle that, we would
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% have adopt a much more difficult approach (putting marks into the main
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% vertical list for the beginning and end of each change).
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%
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\def\|{%
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% \vadjust can only be used in horizontal mode.
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\leavevmode
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%
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% Append this vertical mode material after the current line in the output.
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\vadjust{%
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% We want to insert a rule with the height and depth of the current
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% leading; that is exactly what \strutbox is supposed to record.
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\vskip-\baselineskip
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%
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% \vadjust-items are inserted at the left edge of the type. So
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% the \llap here moves out into the left-hand margin.
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\llap{%
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%
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% For a thicker or thinner bar, change the `1pt'.
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\vrule height\baselineskip width1pt
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%
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% This is the space between the bar and the text.
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\hskip 12pt
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}%
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}%
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}
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% Sometimes it is convenient to have everything in the transcript file
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% and nothing on the terminal. We don't just call \tracingall here,
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% since that produces some useless output on the terminal. We also make
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% some effort to order the tracing commands to reduce output in the log
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% file; cf. trace.sty in LaTeX.
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%
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\def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
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\def\loggingall{%
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\tracingstats2
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\tracingpages1
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\tracinglostchars2 % 2 gives us more in etex
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\tracingparagraphs1
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\tracingoutput1
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\tracingmacros2
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\tracingrestores1
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\showboxbreadth\maxdimen \showboxdepth\maxdimen
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\ifx\eTeXversion\undefined\else % etex gives us more logging
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\tracingscantokens1
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\tracingifs1
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\tracinggroups1
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\tracingnesting2
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\tracingassigns1
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\fi
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\tracingcommands3 % 3 gives us more in etex
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\errorcontextlines16
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}%
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% add check for \lastpenalty to plain's definitions. If the last thing
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% we did was a \nobreak, we don't want to insert more space.
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%
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\def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount
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\removelastskip\penalty-50\smallskip\fi\fi}
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\def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount
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\removelastskip\penalty-100\medskip\fi\fi}
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\def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
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\removelastskip\penalty-200\bigskip\fi\fi}
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% For @cropmarks command.
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% Do @cropmarks to get crop marks.
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%
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\newif\ifcropmarks
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\let\cropmarks = \cropmarkstrue
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%
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% Dimensions to add cropmarks at corners.
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% Added by P. A. MacKay, 12 Nov. 1986
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%
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\newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
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\newdimen\cornerlong \cornerlong=1pc
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\newdimen\cornerthick \cornerthick=.3pt
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\newdimen\topandbottommargin \topandbottommargin=.75in
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% Main output routine.
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\chardef\PAGE = 255
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\output = {\onepageout{\pagecontents\PAGE}}
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\newbox\headlinebox
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\newbox\footlinebox
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% \onepageout takes a vbox as an argument. Note that \pagecontents
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% does insertions, but you have to call it yourself.
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\def\onepageout#1{%
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\ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
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%
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\ifodd\pageno \advance\hoffset by \bindingoffset
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\else \advance\hoffset by -\bindingoffset\fi
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%
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% Do this outside of the \shipout so @code etc. will be expanded in
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% the headline as they should be, not taken literally (outputting ''code).
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\setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
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\setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
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%
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{%
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% Have to do this stuff outside the \shipout because we want it to
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% take effect in \write's, yet the group defined by the \vbox ends
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% before the \shipout runs.
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%
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\escapechar = `\\ % use backslash in output files.
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\indexdummies % don't expand commands in the output.
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\normalturnoffactive % \ in index entries must not stay \, e.g., if
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% the page break happens to be in the middle of an example.
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\shipout\vbox{%
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% Do this early so pdf references go to the beginning of the page.
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\ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
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%
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\ifcropmarks \vbox to \outervsize\bgroup
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\hsize = \outerhsize
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\vskip-\topandbottommargin
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\vtop to0pt{%
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\line{\ewtop\hfil\ewtop}%
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\nointerlineskip
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\line{%
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\vbox{\moveleft\cornerthick\nstop}%
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\hfill
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\vbox{\moveright\cornerthick\nstop}%
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}%
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\vss}%
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\vskip\topandbottommargin
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\line\bgroup
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\hfil % center the page within the outer (page) hsize.
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\ifodd\pageno\hskip\bindingoffset\fi
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\vbox\bgroup
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\fi
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%
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\unvbox\headlinebox
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\pagebody{#1}%
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\ifdim\ht\footlinebox > 0pt
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% Only leave this space if the footline is nonempty.
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% (We lessened \vsize for it in \oddfootingxxx.)
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% The \baselineskip=24pt in plain's \makefootline has no effect.
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\vskip 2\baselineskip
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\unvbox\footlinebox
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\fi
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%
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\ifcropmarks
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\egroup % end of \vbox\bgroup
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\hfil\egroup % end of (centering) \line\bgroup
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\vskip\topandbottommargin plus1fill minus1fill
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\boxmaxdepth = \cornerthick
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\vbox to0pt{\vss
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\line{%
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\vbox{\moveleft\cornerthick\nsbot}%
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\hfill
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\vbox{\moveright\cornerthick\nsbot}%
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}%
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\nointerlineskip
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\line{\ewbot\hfil\ewbot}%
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}%
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\egroup % \vbox from first cropmarks clause
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\fi
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}% end of \shipout\vbox
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}% end of group with \normalturnoffactive
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\advancepageno
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\ifnum\outputpenalty>-20000 \else\dosupereject\fi
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}
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\newinsert\margin \dimen\margin=\maxdimen
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\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
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{\catcode`\@ =11
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\gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
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% marginal hacks, juha@viisa.uucp (Juha Takala)
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\ifvoid\margin\else % marginal info is present
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\rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
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\dimen@=\dp#1 \unvbox#1
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\ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
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\ifr@ggedbottom \kern-\dimen@ \vfil \fi}
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}
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% Here are the rules for the cropmarks. Note that they are
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% offset so that the space between them is truly \outerhsize or \outervsize
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% (P. A. MacKay, 12 November, 1986)
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%
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\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
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\def\nstop{\vbox
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{\hrule height\cornerthick depth\cornerlong width\cornerthick}}
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\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
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\def\nsbot{\vbox
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{\hrule height\cornerlong depth\cornerthick width\cornerthick}}
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% Parse an argument, then pass it to #1. The argument is the rest of
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% the input line (except we remove a trailing comment). #1 should be a
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% macro which expects an ordinary undelimited TeX argument.
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%
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\def\parsearg{\parseargusing{}}
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\def\parseargusing#1#2{%
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\def\next{#2}%
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\begingroup
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\obeylines
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\spaceisspace
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#1%
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\parseargline\empty% Insert the \empty token, see \finishparsearg below.
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}
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{\obeylines %
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\gdef\parseargline#1^^M{%
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\endgroup % End of the group started in \parsearg.
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\argremovecomment #1\comment\ArgTerm%
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}%
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}
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% First remove any @comment, then any @c comment.
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\def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm}
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\def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
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% Each occurence of `\^^M' or `<space>\^^M' is replaced by a single space.
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%
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% \argremovec might leave us with trailing space, e.g.,
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% @end itemize @c foo
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% This space token undergoes the same procedure and is eventually removed
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% by \finishparsearg.
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%
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\def\argcheckspaces#1\^^M{\argcheckspacesX#1\^^M \^^M}
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\def\argcheckspacesX#1 \^^M{\argcheckspacesY#1\^^M}
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\def\argcheckspacesY#1\^^M#2\^^M#3\ArgTerm{%
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\def\temp{#3}%
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\ifx\temp\empty
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% We cannot use \next here, as it holds the macro to run;
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% thus we reuse \temp.
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\let\temp\finishparsearg
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\else
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\let\temp\argcheckspaces
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\fi
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% Put the space token in:
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\temp#1 #3\ArgTerm
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}
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|
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% If a _delimited_ argument is enclosed in braces, they get stripped; so
|
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% to get _exactly_ the rest of the line, we had to prevent such situation.
|
|
% We prepended an \empty token at the very beginning and we expand it now,
|
|
% just before passing the control to \next.
|
|
% (Similarily, we have to think about #3 of \argcheckspacesY above: it is
|
|
% either the null string, or it ends with \^^M---thus there is no danger
|
|
% that a pair of braces would be stripped.
|
|
%
|
|
% But first, we have to remove the trailing space token.
|
|
%
|
|
\def\finishparsearg#1 \ArgTerm{\expandafter\next\expandafter{#1}}
|
|
|
|
% \parseargdef\foo{...}
|
|
% is roughly equivalent to
|
|
% \def\foo{\parsearg\Xfoo}
|
|
% \def\Xfoo#1{...}
|
|
%
|
|
% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
|
|
% favourite TeX trick. --kasal, 16nov03
|
|
|
|
\def\parseargdef#1{%
|
|
\expandafter \doparseargdef \csname\string#1\endcsname #1%
|
|
}
|
|
\def\doparseargdef#1#2{%
|
|
\def#2{\parsearg#1}%
|
|
\def#1##1%
|
|
}
|
|
|
|
% Several utility definitions with active space:
|
|
{
|
|
\obeyspaces
|
|
\gdef\obeyedspace{ }
|
|
|
|
% Make each space character in the input produce a normal interword
|
|
% space in the output. Don't allow a line break at this space, as this
|
|
% is used only in environments like @example, where each line of input
|
|
% should produce a line of output anyway.
|
|
%
|
|
\gdef\sepspaces{\obeyspaces\let =\tie}
|
|
|
|
% If an index command is used in an @example environment, any spaces
|
|
% therein should become regular spaces in the raw index file, not the
|
|
% expansion of \tie (\leavevmode \penalty \@M \ ).
|
|
\gdef\unsepspaces{\let =\space}
|
|
}
|
|
|
|
|
|
\def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
|
|
|
|
% Define the framework for environments in texinfo.tex. It's used like this:
|
|
%
|
|
% \envdef\foo{...}
|
|
% \def\Efoo{...}
|
|
%
|
|
% It's the responsibility of \envdef to insert \begingroup before the
|
|
% actual body; @end closes the group after calling \Efoo. \envdef also
|
|
% defines \thisenv, so the current environment is known; @end checks
|
|
% whether the environment name matches. The \checkenv macro can also be
|
|
% used to check whether the current environment is the one expected.
|
|
%
|
|
% Non-false conditionals (@iftex, @ifset) don't fit into this, so they
|
|
% are not treated as enviroments; they don't open a group. (The
|
|
% implementation of @end takes care not to call \endgroup in this
|
|
% special case.)
|
|
|
|
|
|
% At runtime, environments start with this:
|
|
\def\startenvironment#1{\begingroup\def\thisenv{#1}}
|
|
% initialize
|
|
\let\thisenv\empty
|
|
|
|
% ... but they get defined via ``\envdef\foo{...}'':
|
|
\long\def\envdef#1#2{\def#1{\startenvironment#1#2}}
|
|
\def\envparseargdef#1#2{\parseargdef#1{\startenvironment#1#2}}
|
|
|
|
% Check whether we're in the right environment:
|
|
\def\checkenv#1{%
|
|
\def\temp{#1}%
|
|
\ifx\thisenv\temp
|
|
\else
|
|
\badenverr
|
|
\fi
|
|
}
|
|
|
|
% Evironment mismatch, #1 expected:
|
|
\def\badenverr{%
|
|
\errhelp = \EMsimple
|
|
\errmessage{This command can appear only \inenvironment\temp,
|
|
not \inenvironment\thisenv}%
|
|
}
|
|
\def\inenvironment#1{%
|
|
\ifx#1\empty
|
|
out of any environment%
|
|
\else
|
|
in environment \expandafter\string#1%
|
|
\fi
|
|
}
|
|
|
|
% @end foo executes the definition of \Efoo.
|
|
% But first, it executes a specialized version of \checkenv
|
|
%
|
|
\parseargdef\end{%
|
|
\if 1\csname iscond.#1\endcsname
|
|
\else
|
|
% The general wording of \badenverr may not be ideal, but... --kasal, 06nov03
|
|
\expandafter\checkenv\csname#1\endcsname
|
|
\csname E#1\endcsname
|
|
\endgroup
|
|
\fi
|
|
}
|
|
|
|
\newhelp\EMsimple{Press RETURN to continue.}
|
|
|
|
|
|
%% Simple single-character @ commands
|
|
|
|
% @@ prints an @
|
|
% Kludge this until the fonts are right (grr).
|
|
\def\@{{\tt\char64}}
|
|
|
|
% This is turned off because it was never documented
|
|
% and you can use @w{...} around a quote to suppress ligatures.
|
|
%% Define @` and @' to be the same as ` and '
|
|
%% but suppressing ligatures.
|
|
%\def\`{{`}}
|
|
%\def\'{{'}}
|
|
|
|
% Used to generate quoted braces.
|
|
\def\mylbrace {{\tt\char123}}
|
|
\def\myrbrace {{\tt\char125}}
|
|
\let\{=\mylbrace
|
|
\let\}=\myrbrace
|
|
\begingroup
|
|
% Definitions to produce \{ and \} commands for indices,
|
|
% and @{ and @} for the aux file.
|
|
\catcode`\{ = \other \catcode`\} = \other
|
|
\catcode`\[ = 1 \catcode`\] = 2
|
|
\catcode`\! = 0 \catcode`\\ = \other
|
|
!gdef!lbracecmd[\{]%
|
|
!gdef!rbracecmd[\}]%
|
|
!gdef!lbraceatcmd[@{]%
|
|
!gdef!rbraceatcmd[@}]%
|
|
!endgroup
|
|
|
|
% @comma{} to avoid , parsing problems.
|
|
\let\comma = ,
|
|
|
|
% Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
|
|
% Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H.
|
|
\let\, = \c
|
|
\let\dotaccent = \.
|
|
\def\ringaccent#1{{\accent23 #1}}
|
|
\let\tieaccent = \t
|
|
\let\ubaraccent = \b
|
|
\let\udotaccent = \d
|
|
|
|
% Other special characters: @questiondown @exclamdown @ordf @ordm
|
|
% Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss.
|
|
\def\questiondown{?`}
|
|
\def\exclamdown{!`}
|
|
\def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}}
|
|
\def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}}
|
|
|
|
% Dotless i and dotless j, used for accents.
|
|
\def\imacro{i}
|
|
\def\jmacro{j}
|
|
\def\dotless#1{%
|
|
\def\temp{#1}%
|
|
\ifx\temp\imacro \ptexi
|
|
\else\ifx\temp\jmacro \j
|
|
\else \errmessage{@dotless can be used only with i or j}%
|
|
\fi\fi
|
|
}
|
|
|
|
% The \TeX{} logo, as in plain, but resetting the spacing so that a
|
|
% period following counts as ending a sentence. (Idea found in latex.)
|
|
%
|
|
\edef\TeX{\TeX \spacefactor=3000 }
|
|
|
|
% @LaTeX{} logo. Not quite the same results as the definition in
|
|
% latex.ltx, since we use a different font for the raised A; it's most
|
|
% convenient for us to use an explicitly smaller font, rather than using
|
|
% the \scriptstyle font (since we don't reset \scriptstyle and
|
|
% \scriptscriptstyle).
|
|
%
|
|
\def\LaTeX{%
|
|
L\kern-.36em
|
|
{\setbox0=\hbox{T}%
|
|
\vbox to \ht0{\hbox{\selectfonts\lllsize A}\vss}}%
|
|
\kern-.15em
|
|
\TeX
|
|
}
|
|
|
|
% Be sure we're in horizontal mode when doing a tie, since we make space
|
|
% equivalent to this in @example-like environments. Otherwise, a space
|
|
% at the beginning of a line will start with \penalty -- and
|
|
% since \penalty is valid in vertical mode, we'd end up putting the
|
|
% penalty on the vertical list instead of in the new paragraph.
|
|
{\catcode`@ = 11
|
|
% Avoid using \@M directly, because that causes trouble
|
|
% if the definition is written into an index file.
|
|
\global\let\tiepenalty = \@M
|
|
\gdef\tie{\leavevmode\penalty\tiepenalty\ }
|
|
}
|
|
|
|
% @: forces normal size whitespace following.
|
|
\def\:{\spacefactor=1000 }
|
|
|
|
% @* forces a line break.
|
|
\def\*{\hfil\break\hbox{}\ignorespaces}
|
|
|
|
% @/ allows a line break.
|
|
\let\/=\allowbreak
|
|
|
|
% @. is an end-of-sentence period.
|
|
\def\.{.\spacefactor=3000 }
|
|
|
|
% @! is an end-of-sentence bang.
|
|
\def\!{!\spacefactor=3000 }
|
|
|
|
% @? is an end-of-sentence query.
|
|
\def\?{?\spacefactor=3000 }
|
|
|
|
% @w prevents a word break. Without the \leavevmode, @w at the
|
|
% beginning of a paragraph, when TeX is still in vertical mode, would
|
|
% produce a whole line of output instead of starting the paragraph.
|
|
\def\w#1{\leavevmode\hbox{#1}}
|
|
|
|
% @group ... @end group forces ... to be all on one page, by enclosing
|
|
% it in a TeX vbox. We use \vtop instead of \vbox to construct the box
|
|
% to keep its height that of a normal line. According to the rules for
|
|
% \topskip (p.114 of the TeXbook), the glue inserted is
|
|
% max (\topskip - \ht (first item), 0). If that height is large,
|
|
% therefore, no glue is inserted, and the space between the headline and
|
|
% the text is small, which looks bad.
|
|
%
|
|
% Another complication is that the group might be very large. This can
|
|
% cause the glue on the previous page to be unduly stretched, because it
|
|
% does not have much material. In this case, it's better to add an
|
|
% explicit \vfill so that the extra space is at the bottom. The
|
|
% threshold for doing this is if the group is more than \vfilllimit
|
|
% percent of a page (\vfilllimit can be changed inside of @tex).
|
|
%
|
|
\newbox\groupbox
|
|
\def\vfilllimit{0.7}
|
|
%
|
|
\envdef\group{%
|
|
\ifnum\catcode`\^^M=\active \else
|
|
\errhelp = \groupinvalidhelp
|
|
\errmessage{@group invalid in context where filling is enabled}%
|
|
\fi
|
|
\startsavinginserts
|
|
%
|
|
\setbox\groupbox = \vtop\bgroup
|
|
% Do @comment since we are called inside an environment such as
|
|
% @example, where each end-of-line in the input causes an
|
|
% end-of-line in the output. We don't want the end-of-line after
|
|
% the `@group' to put extra space in the output. Since @group
|
|
% should appear on a line by itself (according to the Texinfo
|
|
% manual), we don't worry about eating any user text.
|
|
\comment
|
|
}
|
|
%
|
|
% The \vtop produces a box with normal height and large depth; thus, TeX puts
|
|
% \baselineskip glue before it, and (when the next line of text is done)
|
|
% \lineskip glue after it. Thus, space below is not quite equal to space
|
|
% above. But it's pretty close.
|
|
\def\Egroup{%
|
|
% To get correct interline space between the last line of the group
|
|
% and the first line afterwards, we have to propagate \prevdepth.
|
|
\endgraf % Not \par, as it may have been set to \lisppar.
|
|
\global\dimen1 = \prevdepth
|
|
\egroup % End the \vtop.
|
|
% \dimen0 is the vertical size of the group's box.
|
|
\dimen0 = \ht\groupbox \advance\dimen0 by \dp\groupbox
|
|
% \dimen2 is how much space is left on the page (more or less).
|
|
\dimen2 = \pageheight \advance\dimen2 by -\pagetotal
|
|
% if the group doesn't fit on the current page, and it's a big big
|
|
% group, force a page break.
|
|
\ifdim \dimen0 > \dimen2
|
|
\ifdim \pagetotal < \vfilllimit\pageheight
|
|
\page
|
|
\fi
|
|
\fi
|
|
\box\groupbox
|
|
\prevdepth = \dimen1
|
|
\checkinserts
|
|
}
|
|
%
|
|
% TeX puts in an \escapechar (i.e., `@') at the beginning of the help
|
|
% message, so this ends up printing `@group can only ...'.
|
|
%
|
|
\newhelp\groupinvalidhelp{%
|
|
group can only be used in environments such as @example,^^J%
|
|
where each line of input produces a line of output.}
|
|
|
|
% @need space-in-mils
|
|
% forces a page break if there is not space-in-mils remaining.
|
|
|
|
\newdimen\mil \mil=0.001in
|
|
|
|
% Old definition--didn't work.
|
|
%\parseargdef\need{\par %
|
|
%% This method tries to make TeX break the page naturally
|
|
%% if the depth of the box does not fit.
|
|
%{\baselineskip=0pt%
|
|
%\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak
|
|
%\prevdepth=-1000pt
|
|
%}}
|
|
|
|
\parseargdef\need{%
|
|
% Ensure vertical mode, so we don't make a big box in the middle of a
|
|
% paragraph.
|
|
\par
|
|
%
|
|
% If the @need value is less than one line space, it's useless.
|
|
\dimen0 = #1\mil
|
|
\dimen2 = \ht\strutbox
|
|
\advance\dimen2 by \dp\strutbox
|
|
\ifdim\dimen0 > \dimen2
|
|
%
|
|
% Do a \strut just to make the height of this box be normal, so the
|
|
% normal leading is inserted relative to the preceding line.
|
|
% And a page break here is fine.
|
|
\vtop to #1\mil{\strut\vfil}%
|
|
%
|
|
% TeX does not even consider page breaks if a penalty added to the
|
|
% main vertical list is 10000 or more. But in order to see if the
|
|
% empty box we just added fits on the page, we must make it consider
|
|
% page breaks. On the other hand, we don't want to actually break the
|
|
% page after the empty box. So we use a penalty of 9999.
|
|
%
|
|
% There is an extremely small chance that TeX will actually break the
|
|
% page at this \penalty, if there are no other feasible breakpoints in
|
|
% sight. (If the user is using lots of big @group commands, which
|
|
% almost-but-not-quite fill up a page, TeX will have a hard time doing
|
|
% good page breaking, for example.) However, I could not construct an
|
|
% example where a page broke at this \penalty; if it happens in a real
|
|
% document, then we can reconsider our strategy.
|
|
\penalty9999
|
|
%
|
|
% Back up by the size of the box, whether we did a page break or not.
|
|
\kern -#1\mil
|
|
%
|
|
% Do not allow a page break right after this kern.
|
|
\nobreak
|
|
\fi
|
|
}
|
|
|
|
% @br forces paragraph break (and is undocumented).
|
|
|
|
\let\br = \par
|
|
|
|
% @page forces the start of a new page.
|
|
%
|
|
\def\page{\par\vfill\supereject}
|
|
|
|
% @exdent text....
|
|
% outputs text on separate line in roman font, starting at standard page margin
|
|
|
|
% This records the amount of indent in the innermost environment.
|
|
% That's how much \exdent should take out.
|
|
\newskip\exdentamount
|
|
|
|
% This defn is used inside fill environments such as @defun.
|
|
\parseargdef\exdent{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}
|
|
|
|
% This defn is used inside nofill environments such as @example.
|
|
\parseargdef\nofillexdent{{\advance \leftskip by -\exdentamount
|
|
\leftline{\hskip\leftskip{\rm#1}}}}
|
|
|
|
% @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current
|
|
% paragraph. For more general purposes, use the \margin insertion
|
|
% class. WHICH is `l' or `r'.
|
|
%
|
|
\newskip\inmarginspacing \inmarginspacing=1cm
|
|
\def\strutdepth{\dp\strutbox}
|
|
%
|
|
\def\doinmargin#1#2{\strut\vadjust{%
|
|
\nobreak
|
|
\kern-\strutdepth
|
|
\vtop to \strutdepth{%
|
|
\baselineskip=\strutdepth
|
|
\vss
|
|
% if you have multiple lines of stuff to put here, you'll need to
|
|
% make the vbox yourself of the appropriate size.
|
|
\ifx#1l%
|
|
\llap{\ignorespaces #2\hskip\inmarginspacing}%
|
|
\else
|
|
\rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}%
|
|
\fi
|
|
\null
|
|
}%
|
|
}}
|
|
\def\inleftmargin{\doinmargin l}
|
|
\def\inrightmargin{\doinmargin r}
|
|
%
|
|
% @inmargin{TEXT [, RIGHT-TEXT]}
|
|
% (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right;
|
|
% else use TEXT for both).
|
|
%
|
|
\def\inmargin#1{\parseinmargin #1,,\finish}
|
|
\def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing.
|
|
\setbox0 = \hbox{\ignorespaces #2}%
|
|
\ifdim\wd0 > 0pt
|
|
\def\lefttext{#1}% have both texts
|
|
\def\righttext{#2}%
|
|
\else
|
|
\def\lefttext{#1}% have only one text
|
|
\def\righttext{#1}%
|
|
\fi
|
|
%
|
|
\ifodd\pageno
|
|
\def\temp{\inrightmargin\righttext}% odd page -> outside is right margin
|
|
\else
|
|
\def\temp{\inleftmargin\lefttext}%
|
|
\fi
|
|
\temp
|
|
}
|
|
|
|
% @include file insert text of that file as input.
|
|
%
|
|
\def\include{\parseargusing\filenamecatcodes\includezzz}
|
|
\def\includezzz#1{%
|
|
\pushthisfilestack
|
|
\def\thisfile{#1}%
|
|
{%
|
|
\makevalueexpandable
|
|
\def\temp{\input #1 }%
|
|
\expandafter
|
|
}\temp
|
|
\popthisfilestack
|
|
}
|
|
\def\filenamecatcodes{%
|
|
\catcode`\\=\other
|
|
\catcode`~=\other
|
|
\catcode`^=\other
|
|
\catcode`_=\other
|
|
\catcode`|=\other
|
|
\catcode`<=\other
|
|
\catcode`>=\other
|
|
\catcode`+=\other
|
|
\catcode`-=\other
|
|
}
|
|
|
|
\def\pushthisfilestack{%
|
|
\expandafter\pushthisfilestackX\popthisfilestack\StackTerm
|
|
}
|
|
\def\pushthisfilestackX{%
|
|
\expandafter\pushthisfilestackY\thisfile\StackTerm
|
|
}
|
|
\def\pushthisfilestackY #1\StackTerm #2\StackTerm {%
|
|
\gdef\popthisfilestack{\gdef\thisfile{#1}\gdef\popthisfilestack{#2}}%
|
|
}
|
|
|
|
\def\popthisfilestack{\errthisfilestackempty}
|
|
\def\errthisfilestackempty{\errmessage{Internal error:
|
|
the stack of filenames is empty.}}
|
|
|
|
\def\thisfile{}
|
|
|
|
% @center line
|
|
% outputs that line, centered.
|
|
%
|
|
\parseargdef\center{%
|
|
\ifhmode
|
|
\let\next\centerH
|
|
\else
|
|
\let\next\centerV
|
|
\fi
|
|
\next{\hfil \ignorespaces#1\unskip \hfil}%
|
|
}
|
|
\def\centerH#1{%
|
|
{%
|
|
\hfil\break
|
|
\advance\hsize by -\leftskip
|
|
\advance\hsize by -\rightskip
|
|
\line{#1}%
|
|
\break
|
|
}%
|
|
}
|
|
\def\centerV#1{\line{\kern\leftskip #1\kern\rightskip}}
|
|
|
|
% @sp n outputs n lines of vertical space
|
|
|
|
\parseargdef\sp{\vskip #1\baselineskip}
|
|
|
|
% @comment ...line which is ignored...
|
|
% @c is the same as @comment
|
|
% @ignore ... @end ignore is another way to write a comment
|
|
|
|
\def\comment{\begingroup \catcode`\^^M=\other%
|
|
\catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
|
|
\commentxxx}
|
|
{\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
|
|
|
|
\let\c=\comment
|
|
|
|
% @paragraphindent NCHARS
|
|
% We'll use ems for NCHARS, close enough.
|
|
% NCHARS can also be the word `asis' or `none'.
|
|
% We cannot feasibly implement @paragraphindent asis, though.
|
|
%
|
|
\def\asisword{asis} % no translation, these are keywords
|
|
\def\noneword{none}
|
|
%
|
|
\parseargdef\paragraphindent{%
|
|
\def\temp{#1}%
|
|
\ifx\temp\asisword
|
|
\else
|
|
\ifx\temp\noneword
|
|
\defaultparindent = 0pt
|
|
\else
|
|
\defaultparindent = #1em
|
|
\fi
|
|
\fi
|
|
\parindent = \defaultparindent
|
|
}
|
|
|
|
% @exampleindent NCHARS
|
|
% We'll use ems for NCHARS like @paragraphindent.
|
|
% It seems @exampleindent asis isn't necessary, but
|
|
% I preserve it to make it similar to @paragraphindent.
|
|
\parseargdef\exampleindent{%
|
|
\def\temp{#1}%
|
|
\ifx\temp\asisword
|
|
\else
|
|
\ifx\temp\noneword
|
|
\lispnarrowing = 0pt
|
|
\else
|
|
\lispnarrowing = #1em
|
|
\fi
|
|
\fi
|
|
}
|
|
|
|
% @firstparagraphindent WORD
|
|
% If WORD is `none', then suppress indentation of the first paragraph
|
|
% after a section heading. If WORD is `insert', then do indent at such
|
|
% paragraphs.
|
|
%
|
|
% The paragraph indentation is suppressed or not by calling
|
|
% \suppressfirstparagraphindent, which the sectioning commands do.
|
|
% We switch the definition of this back and forth according to WORD.
|
|
% By default, we suppress indentation.
|
|
%
|
|
\def\suppressfirstparagraphindent{\dosuppressfirstparagraphindent}
|
|
\def\insertword{insert}
|
|
%
|
|
\parseargdef\firstparagraphindent{%
|
|
\def\temp{#1}%
|
|
\ifx\temp\noneword
|
|
\let\suppressfirstparagraphindent = \dosuppressfirstparagraphindent
|
|
\else\ifx\temp\insertword
|
|
\let\suppressfirstparagraphindent = \relax
|
|
\else
|
|
\errhelp = \EMsimple
|
|
\errmessage{Unknown @firstparagraphindent option `\temp'}%
|
|
\fi\fi
|
|
}
|
|
|
|
% Here is how we actually suppress indentation. Redefine \everypar to
|
|
% \kern backwards by \parindent, and then reset itself to empty.
|
|
%
|
|
% We also make \indent itself not actually do anything until the next
|
|
% paragraph.
|
|
%
|
|
\gdef\dosuppressfirstparagraphindent{%
|
|
\gdef\indent{%
|
|
\restorefirstparagraphindent
|
|
\indent
|
|
}%
|
|
\gdef\noindent{%
|
|
\restorefirstparagraphindent
|
|
\noindent
|
|
}%
|
|
\global\everypar = {%
|
|
\kern -\parindent
|
|
\restorefirstparagraphindent
|
|
}%
|
|
}
|
|
|
|
\gdef\restorefirstparagraphindent{%
|
|
\global \let \indent = \ptexindent
|
|
\global \let \noindent = \ptexnoindent
|
|
\global \everypar = {}%
|
|
}
|
|
|
|
|
|
% @asis just yields its argument. Used with @table, for example.
|
|
%
|
|
\def\asis#1{#1}
|
|
|
|
% @math outputs its argument in math mode.
|
|
%
|
|
% One complication: _ usually means subscripts, but it could also mean
|
|
% an actual _ character, as in @math{@var{some_variable} + 1}. So make
|
|
% _ active, and distinguish by seeing if the current family is \slfam,
|
|
% which is what @var uses.
|
|
{
|
|
\catcode\underChar = \active
|
|
\gdef\mathunderscore{%
|
|
\catcode\underChar=\active
|
|
\def_{\ifnum\fam=\slfam \_\else\sb\fi}%
|
|
}
|
|
}
|
|
% Another complication: we want \\ (and @\) to output a \ character.
|
|
% FYI, plain.tex uses \\ as a temporary control sequence (why?), but
|
|
% this is not advertised and we don't care. Texinfo does not
|
|
% otherwise define @\.
|
|
%
|
|
% The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\.
|
|
\def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
|
|
%
|
|
\def\math{%
|
|
\tex
|
|
\mathunderscore
|
|
\let\\ = \mathbackslash
|
|
\mathactive
|
|
$\finishmath
|
|
}
|
|
\def\finishmath#1{#1$\endgroup} % Close the group opened by \tex.
|
|
|
|
% Some active characters (such as <) are spaced differently in math.
|
|
% We have to reset their definitions in case the @math was an argument
|
|
% to a command which sets the catcodes (such as @item or @section).
|
|
%
|
|
{
|
|
\catcode`^ = \active
|
|
\catcode`< = \active
|
|
\catcode`> = \active
|
|
\catcode`+ = \active
|
|
\gdef\mathactive{%
|
|
\let^ = \ptexhat
|
|
\let< = \ptexless
|
|
\let> = \ptexgtr
|
|
\let+ = \ptexplus
|
|
}
|
|
}
|
|
|
|
% @bullet and @minus need the same treatment as @math, just above.
|
|
\def\bullet{$\ptexbullet$}
|
|
\def\minus{$-$}
|
|
|
|
% @dots{} outputs an ellipsis using the current font.
|
|
% We do .5em per period so that it has the same spacing in a typewriter
|
|
% font as three actual period characters.
|
|
%
|
|
\def\dots{%
|
|
\leavevmode
|
|
\hbox to 1.5em{%
|
|
\hskip 0pt plus 0.25fil
|
|
.\hfil.\hfil.%
|
|
\hskip 0pt plus 0.5fil
|
|
}%
|
|
}
|
|
|
|
% @enddots{} is an end-of-sentence ellipsis.
|
|
%
|
|
\def\enddots{%
|
|
\dots
|
|
\spacefactor=3000
|
|
}
|
|
|
|
% @comma{} is so commas can be inserted into text without messing up
|
|
% Texinfo's parsing.
|
|
%
|
|
\let\comma = ,
|
|
|
|
% @refill is a no-op.
|
|
\let\refill=\relax
|
|
|
|
% If working on a large document in chapters, it is convenient to
|
|
% be able to disable indexing, cross-referencing, and contents, for test runs.
|
|
% This is done with @novalidate (before @setfilename).
|
|
%
|
|
\newif\iflinks \linkstrue % by default we want the aux files.
|
|
\let\novalidate = \linksfalse
|
|
|
|
% @setfilename is done at the beginning of every texinfo file.
|
|
% So open here the files we need to have open while reading the input.
|
|
% This makes it possible to make a .fmt file for texinfo.
|
|
\def\setfilename{%
|
|
\fixbackslash % Turn off hack to swallow `\input texinfo'.
|
|
\iflinks
|
|
\tryauxfile
|
|
% Open the new aux file. TeX will close it automatically at exit.
|
|
\immediate\openout\auxfile=\jobname.aux
|
|
\fi % \openindices needs to do some work in any case.
|
|
\openindices
|
|
\let\setfilename=\comment % Ignore extra @setfilename cmds.
|
|
%
|
|
% If texinfo.cnf is present on the system, read it.
|
|
% Useful for site-wide @afourpaper, etc.
|
|
\openin 1 texinfo.cnf
|
|
\ifeof 1 \else \input texinfo.cnf \fi
|
|
\closein 1
|
|
%
|
|
\comment % Ignore the actual filename.
|
|
}
|
|
|
|
% Called from \setfilename.
|
|
%
|
|
\def\openindices{%
|
|
\newindex{cp}%
|
|
\newcodeindex{fn}%
|
|
\newcodeindex{vr}%
|
|
\newcodeindex{tp}%
|
|
\newcodeindex{ky}%
|
|
\newcodeindex{pg}%
|
|
}
|
|
|
|
% @bye.
|
|
\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
|
|
|
|
|
|
\message{pdf,}
|
|
% adobe `portable' document format
|
|
\newcount\tempnum
|
|
\newcount\lnkcount
|
|
\newtoks\filename
|
|
\newcount\filenamelength
|
|
\newcount\pgn
|
|
\newtoks\toksA
|
|
\newtoks\toksB
|
|
\newtoks\toksC
|
|
\newtoks\toksD
|
|
\newbox\boxA
|
|
\newcount\countA
|
|
\newif\ifpdf
|
|
\newif\ifpdfmakepagedest
|
|
|
|
\ifx\pdfoutput\undefined
|
|
\pdffalse
|
|
\let\pdfmkdest = \gobble
|
|
\let\pdfurl = \gobble
|
|
\let\endlink = \relax
|
|
\let\linkcolor = \relax
|
|
\let\pdfmakeoutlines = \relax
|
|
\else
|
|
\pdftrue
|
|
\pdfoutput = 1
|
|
\input pdfcolor
|
|
\pdfcatalog{/PageMode /UseOutlines}%
|
|
\def\dopdfimage#1#2#3{%
|
|
\def\imagewidth{#2}%
|
|
\def\imageheight{#3}%
|
|
% without \immediate, pdftex seg faults when the same image is
|
|
% included twice. (Version 3.14159-pre-1.0-unofficial-20010704.)
|
|
\ifnum\pdftexversion < 14
|
|
\immediate\pdfimage
|
|
\else
|
|
\immediate\pdfximage
|
|
\fi
|
|
\ifx\empty\imagewidth\else width \imagewidth \fi
|
|
\ifx\empty\imageheight\else height \imageheight \fi
|
|
\ifnum\pdftexversion<13
|
|
#1.pdf%
|
|
\else
|
|
{#1.pdf}%
|
|
\fi
|
|
\ifnum\pdftexversion < 14 \else
|
|
\pdfrefximage \pdflastximage
|
|
\fi}
|
|
\def\pdfmkdest#1{{%
|
|
% We have to set dummies so commands such as @code in a section title
|
|
% aren't expanded.
|
|
\atdummies
|
|
\normalturnoffactive
|
|
\pdfdest name{#1} xyz%
|
|
}}
|
|
\def\pdfmkpgn#1{#1}
|
|
\let\linkcolor = \Blue % was Cyan, but that seems light?
|
|
\def\endlink{\Black\pdfendlink}
|
|
% Adding outlines to PDF; macros for calculating structure of outlines
|
|
% come from Petr Olsak
|
|
\def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
|
|
\else \csname#1\endcsname \fi}
|
|
\def\advancenumber#1{\tempnum=\expnumber{#1}\relax
|
|
\advance\tempnum by 1
|
|
\expandafter\xdef\csname#1\endcsname{\the\tempnum}}
|
|
%
|
|
% #1 is the section text. #2 is the pdf expression for the number
|
|
% of subentries (or empty, for subsubsections). #3 is the node
|
|
% text, which might be empty if this toc entry had no
|
|
% corresponding node. #4 is the page number.
|
|
%
|
|
\def\dopdfoutline#1#2#3#4{%
|
|
% Generate a link to the node text if that exists; else, use the
|
|
% page number. We could generate a destination for the section
|
|
% text in the case where a section has no node, but it doesn't
|
|
% seem worthwhile, since most documents are normally structured.
|
|
\def\pdfoutlinedest{#3}%
|
|
\ifx\pdfoutlinedest\empty \def\pdfoutlinedest{#4}\fi
|
|
%
|
|
\pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{#1}%
|
|
}
|
|
%
|
|
\def\pdfmakeoutlines{%
|
|
\begingroup
|
|
% Thanh's hack / proper braces in bookmarks
|
|
\edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace
|
|
\edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace
|
|
%
|
|
% Read toc silently, to get counts of subentries for \pdfoutline.
|
|
\def\numchapentry##1##2##3##4{%
|
|
\def\thischapnum{##2}%
|
|
\let\thissecnum\empty
|
|
\let\thissubsecnum\empty
|
|
}%
|
|
\def\numsecentry##1##2##3##4{%
|
|
\advancenumber{chap\thischapnum}%
|
|
\def\thissecnum{##2}%
|
|
\let\thissubsecnum\empty
|
|
}%
|
|
\def\numsubsecentry##1##2##3##4{%
|
|
\advancenumber{sec\thissecnum}%
|
|
\def\thissubsecnum{##2}%
|
|
}%
|
|
\def\numsubsubsecentry##1##2##3##4{%
|
|
\advancenumber{subsec\thissubsecnum}%
|
|
}%
|
|
\let\thischapnum\empty
|
|
\let\thissecnum\empty
|
|
\let\thissubsecnum\empty
|
|
%
|
|
% use \def rather than \let here because we redefine \chapentry et
|
|
% al. a second time, below.
|
|
\def\appentry{\numchapentry}%
|
|
\def\appsecentry{\numsecentry}%
|
|
\def\appsubsecentry{\numsubsecentry}%
|
|
\def\appsubsubsecentry{\numsubsubsecentry}%
|
|
\def\unnchapentry{\numchapentry}%
|
|
\def\unnsecentry{\numsecentry}%
|
|
\def\unnsubsecentry{\numsubsecentry}%
|
|
\def\unnsubsubsecentry{\numsubsubsecentry}%
|
|
\input \jobname.toc
|
|
%
|
|
% Read toc second time, this time actually producing the outlines.
|
|
% The `-' means take the \expnumber as the absolute number of
|
|
% subentries, which we calculated on our first read of the .toc above.
|
|
%
|
|
% We use the node names as the destinations.
|
|
\def\numchapentry##1##2##3##4{%
|
|
\dopdfoutline{##1}{count-\expnumber{chap##2}}{##3}{##4}}%
|
|
\def\numsecentry##1##2##3##4{%
|
|
\dopdfoutline{##1}{count-\expnumber{sec##2}}{##3}{##4}}%
|
|
\def\numsubsecentry##1##2##3##4{%
|
|
\dopdfoutline{##1}{count-\expnumber{subsec##2}}{##3}{##4}}%
|
|
\def\numsubsubsecentry##1##2##3##4{% count is always zero
|
|
\dopdfoutline{##1}{}{##3}{##4}}%
|
|
%
|
|
% PDF outlines are displayed using system fonts, instead of
|
|
% document fonts. Therefore we cannot use special characters,
|
|
% since the encoding is unknown. For example, the eogonek from
|
|
% Latin 2 (0xea) gets translated to a | character. Info from
|
|
% Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100.
|
|
%
|
|
% xx to do this right, we have to translate 8-bit characters to
|
|
% their "best" equivalent, based on the @documentencoding. Right
|
|
% now, I guess we'll just let the pdf reader have its way.
|
|
\indexnofonts
|
|
\turnoffactive
|
|
\input \jobname.toc
|
|
\endgroup
|
|
}
|
|
%
|
|
\def\makelinks #1,{%
|
|
\def\params{#1}\def\E{END}%
|
|
\ifx\params\E
|
|
\let\nextmakelinks=\relax
|
|
\else
|
|
\let\nextmakelinks=\makelinks
|
|
\ifnum\lnkcount>0,\fi
|
|
\picknum{#1}%
|
|
\startlink attr{/Border [0 0 0]}
|
|
goto name{\pdfmkpgn{\the\pgn}}%
|
|
\linkcolor #1%
|
|
\advance\lnkcount by 1%
|
|
\endlink
|
|
\fi
|
|
\nextmakelinks
|
|
}
|
|
\def\picknum#1{\expandafter\pn#1}
|
|
\def\pn#1{%
|
|
\def\p{#1}%
|
|
\ifx\p\lbrace
|
|
\let\nextpn=\ppn
|
|
\else
|
|
\let\nextpn=\ppnn
|
|
\def\first{#1}
|
|
\fi
|
|
\nextpn
|
|
}
|
|
\def\ppn#1{\pgn=#1\gobble}
|
|
\def\ppnn{\pgn=\first}
|
|
\def\pdfmklnk#1{\lnkcount=0\makelinks #1,END,}
|
|
\def\skipspaces#1{\def\PP{#1}\def\D{|}%
|
|
\ifx\PP\D\let\nextsp\relax
|
|
\else\let\nextsp\skipspaces
|
|
\ifx\p\space\else\addtokens{\filename}{\PP}%
|
|
\advance\filenamelength by 1
|
|
\fi
|
|
\fi
|
|
\nextsp}
|
|
\def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
|
|
\ifnum\pdftexversion < 14
|
|
\let \startlink \pdfannotlink
|
|
\else
|
|
\let \startlink \pdfstartlink
|
|
\fi
|
|
\def\pdfurl#1{%
|
|
\begingroup
|
|
\normalturnoffactive\def\@{@}%
|
|
\makevalueexpandable
|
|
\leavevmode\Red
|
|
\startlink attr{/Border [0 0 0]}%
|
|
user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
|
|
\endgroup}
|
|
\def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
|
|
\def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
|
|
\def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
|
|
\def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
|
|
\def\maketoks{%
|
|
\expandafter\poptoks\the\toksA|ENDTOKS|\relax
|
|
\ifx\first0\adn0
|
|
\else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
|
|
\else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
|
|
\else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
|
|
\else
|
|
\ifnum0=\countA\else\makelink\fi
|
|
\ifx\first.\let\next=\done\else
|
|
\let\next=\maketoks
|
|
\addtokens{\toksB}{\the\toksD}
|
|
\ifx\first,\addtokens{\toksB}{\space}\fi
|
|
\fi
|
|
\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
|
|
\next}
|
|
\def\makelink{\addtokens{\toksB}%
|
|
{\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
|
|
\def\pdflink#1{%
|
|
\startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
|
|
\linkcolor #1\endlink}
|
|
\def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
|
|
\fi % \ifx\pdfoutput
|
|
|
|
|
|
\message{fonts,}
|
|
|
|
% Change the current font style to #1, remembering it in \curfontstyle.
|
|
% For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
|
|
% italics, not bold italics.
|
|
%
|
|
\def\setfontstyle#1{%
|
|
\def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
|
|
\csname ten#1\endcsname % change the current font
|
|
}
|
|
|
|
% Select #1 fonts with the current style.
|
|
%
|
|
\def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname}
|
|
|
|
\def\rm{\fam=0 \setfontstyle{rm}}
|
|
\def\it{\fam=\itfam \setfontstyle{it}}
|
|
\def\sl{\fam=\slfam \setfontstyle{sl}}
|
|
\def\bf{\fam=\bffam \setfontstyle{bf}}
|
|
\def\tt{\fam=\ttfam \setfontstyle{tt}}
|
|
|
|
% Texinfo sort of supports the sans serif font style, which plain TeX does not.
|
|
% So we set up a \sf.
|
|
\newfam\sffam
|
|
\def\sf{\fam=\sffam \setfontstyle{sf}}
|
|
\let\li = \sf % Sometimes we call it \li, not \sf.
|
|
|
|
% We don't need math for this font style.
|
|
\def\ttsl{\setfontstyle{ttsl}}
|
|
|
|
% Default leading.
|
|
\newdimen\textleading \textleading = 13.2pt
|
|
|
|
% Set the baselineskip to #1, and the lineskip and strut size
|
|
% correspondingly. There is no deep meaning behind these magic numbers
|
|
% used as factors; they just match (closely enough) what Knuth defined.
|
|
%
|
|
\def\lineskipfactor{.08333}
|
|
\def\strutheightpercent{.70833}
|
|
\def\strutdepthpercent {.29167}
|
|
%
|
|
\def\setleading#1{%
|
|
\normalbaselineskip = #1\relax
|
|
\normallineskip = \lineskipfactor\normalbaselineskip
|
|
\normalbaselines
|
|
\setbox\strutbox =\hbox{%
|
|
\vrule width0pt height\strutheightpercent\baselineskip
|
|
depth \strutdepthpercent \baselineskip
|
|
}%
|
|
}
|
|
|
|
% Set the font macro #1 to the font named #2, adding on the
|
|
% specified font prefix (normally `cm').
|
|
% #3 is the font's design size, #4 is a scale factor
|
|
\def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
|
|
|
|
% Use cm as the default font prefix.
|
|
% To specify the font prefix, you must define \fontprefix
|
|
% before you read in texinfo.tex.
|
|
\ifx\fontprefix\undefined
|
|
\def\fontprefix{cm}
|
|
\fi
|
|
% Support font families that don't use the same naming scheme as CM.
|
|
\def\rmshape{r}
|
|
\def\rmbshape{bx} %where the normal face is bold
|
|
\def\bfshape{b}
|
|
\def\bxshape{bx}
|
|
\def\ttshape{tt}
|
|
\def\ttbshape{tt}
|
|
\def\ttslshape{sltt}
|
|
\def\itshape{ti}
|
|
\def\itbshape{bxti}
|
|
\def\slshape{sl}
|
|
\def\slbshape{bxsl}
|
|
\def\sfshape{ss}
|
|
\def\sfbshape{ss}
|
|
\def\scshape{csc}
|
|
\def\scbshape{csc}
|
|
|
|
% Text fonts (11.2pt, magstep1).
|
|
\newcount\mainmagstep
|
|
\ifx\bigger\relax
|
|
% not really supported.
|
|
\mainmagstep=\magstep1
|
|
\setfont\textrm\rmshape{12}{1000}
|
|
\setfont\texttt\ttshape{12}{1000}
|
|
\else
|
|
\mainmagstep=\magstephalf
|
|
\setfont\textrm\rmshape{10}{\mainmagstep}
|
|
\setfont\texttt\ttshape{10}{\mainmagstep}
|
|
\fi
|
|
\setfont\textbf\bfshape{10}{\mainmagstep}
|
|
\setfont\textit\itshape{10}{\mainmagstep}
|
|
\setfont\textsl\slshape{10}{\mainmagstep}
|
|
\setfont\textsf\sfshape{10}{\mainmagstep}
|
|
\setfont\textsc\scshape{10}{\mainmagstep}
|
|
\setfont\textttsl\ttslshape{10}{\mainmagstep}
|
|
\font\texti=cmmi10 scaled \mainmagstep
|
|
\font\textsy=cmsy10 scaled \mainmagstep
|
|
|
|
% A few fonts for @defun names and args.
|
|
\setfont\defbf\bfshape{10}{\magstep1}
|
|
\setfont\deftt\ttshape{10}{\magstep1}
|
|
\setfont\defttsl\ttslshape{10}{\magstep1}
|
|
\def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
|
|
|
|
% Fonts for indices, footnotes, small examples (9pt).
|
|
\setfont\smallrm\rmshape{9}{1000}
|
|
\setfont\smalltt\ttshape{9}{1000}
|
|
\setfont\smallbf\bfshape{10}{900}
|
|
\setfont\smallit\itshape{9}{1000}
|
|
\setfont\smallsl\slshape{9}{1000}
|
|
\setfont\smallsf\sfshape{9}{1000}
|
|
\setfont\smallsc\scshape{10}{900}
|
|
\setfont\smallttsl\ttslshape{10}{900}
|
|
\font\smalli=cmmi9
|
|
\font\smallsy=cmsy9
|
|
|
|
% Fonts for small examples (8pt).
|
|
\setfont\smallerrm\rmshape{8}{1000}
|
|
\setfont\smallertt\ttshape{8}{1000}
|
|
\setfont\smallerbf\bfshape{10}{800}
|
|
\setfont\smallerit\itshape{8}{1000}
|
|
\setfont\smallersl\slshape{8}{1000}
|
|
\setfont\smallersf\sfshape{8}{1000}
|
|
\setfont\smallersc\scshape{10}{800}
|
|
\setfont\smallerttsl\ttslshape{10}{800}
|
|
\font\smalleri=cmmi8
|
|
\font\smallersy=cmsy8
|
|
|
|
% Fonts for title page (20.4pt):
|
|
\setfont\titlerm\rmbshape{12}{\magstep3}
|
|
\setfont\titleit\itbshape{10}{\magstep4}
|
|
\setfont\titlesl\slbshape{10}{\magstep4}
|
|
\setfont\titlett\ttbshape{12}{\magstep3}
|
|
\setfont\titlettsl\ttslshape{10}{\magstep4}
|
|
\setfont\titlesf\sfbshape{17}{\magstep1}
|
|
\let\titlebf=\titlerm
|
|
\setfont\titlesc\scbshape{10}{\magstep4}
|
|
\font\titlei=cmmi12 scaled \magstep3
|
|
\font\titlesy=cmsy10 scaled \magstep4
|
|
\def\authorrm{\secrm}
|
|
\def\authortt{\sectt}
|
|
|
|
% Chapter (and unnumbered) fonts (17.28pt).
|
|
\setfont\chaprm\rmbshape{12}{\magstep2}
|
|
\setfont\chapit\itbshape{10}{\magstep3}
|
|
\setfont\chapsl\slbshape{10}{\magstep3}
|
|
\setfont\chaptt\ttbshape{12}{\magstep2}
|
|
\setfont\chapttsl\ttslshape{10}{\magstep3}
|
|
\setfont\chapsf\sfbshape{17}{1000}
|
|
\let\chapbf=\chaprm
|
|
\setfont\chapsc\scbshape{10}{\magstep3}
|
|
\font\chapi=cmmi12 scaled \magstep2
|
|
\font\chapsy=cmsy10 scaled \magstep3
|
|
|
|
% Section fonts (14.4pt).
|
|
\setfont\secrm\rmbshape{12}{\magstep1}
|
|
\setfont\secit\itbshape{10}{\magstep2}
|
|
\setfont\secsl\slbshape{10}{\magstep2}
|
|
\setfont\sectt\ttbshape{12}{\magstep1}
|
|
\setfont\secttsl\ttslshape{10}{\magstep2}
|
|
\setfont\secsf\sfbshape{12}{\magstep1}
|
|
\let\secbf\secrm
|
|
\setfont\secsc\scbshape{10}{\magstep2}
|
|
\font\seci=cmmi12 scaled \magstep1
|
|
\font\secsy=cmsy10 scaled \magstep2
|
|
|
|
% Subsection fonts (13.15pt).
|
|
\setfont\ssecrm\rmbshape{12}{\magstephalf}
|
|
\setfont\ssecit\itbshape{10}{1315}
|
|
\setfont\ssecsl\slbshape{10}{1315}
|
|
\setfont\ssectt\ttbshape{12}{\magstephalf}
|
|
\setfont\ssecttsl\ttslshape{10}{1315}
|
|
\setfont\ssecsf\sfbshape{12}{\magstephalf}
|
|
\let\ssecbf\ssecrm
|
|
\setfont\ssecsc\scbshape{10}{1315}
|
|
\font\sseci=cmmi12 scaled \magstephalf
|
|
\font\ssecsy=cmsy10 scaled 1315
|
|
|
|
% Reduced fonts for @acro in text (10pt).
|
|
\setfont\reducedrm\rmshape{10}{1000}
|
|
\setfont\reducedtt\ttshape{10}{1000}
|
|
\setfont\reducedbf\bfshape{10}{1000}
|
|
\setfont\reducedit\itshape{10}{1000}
|
|
\setfont\reducedsl\slshape{10}{1000}
|
|
\setfont\reducedsf\sfshape{10}{1000}
|
|
\setfont\reducedsc\scshape{10}{1000}
|
|
\setfont\reducedttsl\ttslshape{10}{1000}
|
|
\font\reducedi=cmmi10
|
|
\font\reducedsy=cmsy10
|
|
|
|
% In order for the font changes to affect most math symbols and letters,
|
|
% we have to define the \textfont of the standard families. Since
|
|
% texinfo doesn't allow for producing subscripts and superscripts except
|
|
% in the main text, we don't bother to reset \scriptfont and
|
|
% \scriptscriptfont (which would also require loading a lot more fonts).
|
|
%
|
|
\def\resetmathfonts{%
|
|
\textfont0=\tenrm \textfont1=\teni \textfont2=\tensy
|
|
\textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf
|
|
\textfont\ttfam=\tentt \textfont\sffam=\tensf
|
|
}
|
|
|
|
% The font-changing commands redefine the meanings of \tenSTYLE, instead
|
|
% of just \STYLE. We do this because \STYLE needs to also set the
|
|
% current \fam for math mode. Our \STYLE (e.g., \rm) commands hardwire
|
|
% \tenSTYLE to set the current font.
|
|
%
|
|
% Each font-changing command also sets the names \lsize (one size lower)
|
|
% and \lllsize (three sizes lower). These relative commands are used in
|
|
% the LaTeX logo and acronyms.
|
|
%
|
|
% This all needs generalizing, badly.
|
|
%
|
|
\def\textfonts{%
|
|
\let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
|
|
\let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
|
|
\let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy
|
|
\let\tenttsl=\textttsl
|
|
\def\lsize{reduced}\def\lllsize{smaller}%
|
|
\resetmathfonts \setleading{\textleading}}
|
|
\def\titlefonts{%
|
|
\let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
|
|
\let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
|
|
\let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
|
|
\let\tenttsl=\titlettsl
|
|
\def\lsize{chap}\def\lllsize{subsec}%
|
|
\resetmathfonts \setleading{25pt}}
|
|
\def\titlefont#1{{\titlefonts\rm #1}}
|
|
\def\chapfonts{%
|
|
\let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
|
|
\let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
|
|
\let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl
|
|
\def\lsize{sec}\def\lllsize{text}%
|
|
\resetmathfonts \setleading{19pt}}
|
|
\def\secfonts{%
|
|
\let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
|
|
\let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
|
|
\let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy
|
|
\let\tenttsl=\secttsl
|
|
\def\lsize{subsec}\def\lllsize{reduced}%
|
|
\resetmathfonts \setleading{16pt}}
|
|
\def\subsecfonts{%
|
|
\let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
|
|
\let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
|
|
\let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy
|
|
\let\tenttsl=\ssecttsl
|
|
\def\lsize{text}\def\lllsize{small}%
|
|
\resetmathfonts \setleading{15pt}}
|
|
\let\subsubsecfonts = \subsecfonts
|
|
\def\reducedfonts{%
|
|
\let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl
|
|
\let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc
|
|
\let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy
|
|
\let\tenttsl=\reducedttsl
|
|
\def\lsize{small}\def\lllsize{smaller}%
|
|
\resetmathfonts \setleading{10.5pt}}
|
|
\def\smallfonts{%
|
|
\let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
|
|
\let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
|
|
\let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
|
|
\let\tenttsl=\smallttsl
|
|
\def\lsize{smaller}\def\lllsize{smaller}%
|
|
\resetmathfonts \setleading{10.5pt}}
|
|
\def\smallerfonts{%
|
|
\let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
|
|
\let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
|
|
\let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
|
|
\let\tenttsl=\smallerttsl
|
|
\def\lsize{smaller}\def\lllsize{smaller}%
|
|
\resetmathfonts \setleading{9.5pt}}
|
|
|
|
% Set the fonts to use with the @small... environments.
|
|
\let\smallexamplefonts = \smallfonts
|
|
|
|
% About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample
|
|
% can fit this many characters:
|
|
% 8.5x11=86 smallbook=72 a4=90 a5=69
|
|
% If we use \scriptfonts (8pt), then we can fit this many characters:
|
|
% 8.5x11=90+ smallbook=80 a4=90+ a5=77
|
|
% For me, subjectively, the few extra characters that fit aren't worth
|
|
% the additional smallness of 8pt. So I'm making the default 9pt.
|
|
%
|
|
% By the way, for comparison, here's what fits with @example (10pt):
|
|
% 8.5x11=71 smallbook=60 a4=75 a5=58
|
|
%
|
|
% I wish the USA used A4 paper.
|
|
% --karl, 24jan03.
|
|
|
|
|
|
% Set up the default fonts, so we can use them for creating boxes.
|
|
%
|
|
\textfonts \rm
|
|
|
|
% Define these so they can be easily changed for other fonts.
|
|
\def\angleleft{$\langle$}
|
|
\def\angleright{$\rangle$}
|
|
|
|
% Count depth in font-changes, for error checks
|
|
\newcount\fontdepth \fontdepth=0
|
|
|
|
% Fonts for short table of contents.
|
|
\setfont\shortcontrm\rmshape{12}{1000}
|
|
\setfont\shortcontbf\bfshape{10}{\magstep1} % no cmb12
|
|
\setfont\shortcontsl\slshape{12}{1000}
|
|
\setfont\shortconttt\ttshape{12}{1000}
|
|
|
|
%% Add scribe-like font environments, plus @l for inline lisp (usually sans
|
|
%% serif) and @ii for TeX italic
|
|
|
|
% \smartitalic{ARG} outputs arg in italics, followed by an italic correction
|
|
% unless the following character is such as not to need one.
|
|
\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else
|
|
\ptexslash\fi\fi\fi}
|
|
\def\smartslanted#1{{\ifusingtt\ttsl\sl #1}\futurelet\next\smartitalicx}
|
|
\def\smartitalic#1{{\ifusingtt\ttsl\it #1}\futurelet\next\smartitalicx}
|
|
|
|
% like \smartslanted except unconditionally uses \ttsl.
|
|
% @var is set to this for defun arguments.
|
|
\def\ttslanted#1{{\ttsl #1}\futurelet\next\smartitalicx}
|
|
|
|
% like \smartslanted except unconditionally use \sl. We never want
|
|
% ttsl for book titles, do we?
|
|
\def\cite#1{{\sl #1}\futurelet\next\smartitalicx}
|
|
|
|
\let\i=\smartitalic
|
|
\let\var=\smartslanted
|
|
\let\dfn=\smartslanted
|
|
\let\emph=\smartitalic
|
|
|
|
\def\b#1{{\bf #1}}
|
|
\let\strong=\b
|
|
|
|
% We can't just use \exhyphenpenalty, because that only has effect at
|
|
% the end of a paragraph. Restore normal hyphenation at the end of the
|
|
% group within which \nohyphenation is presumably called.
|
|
%
|
|
\def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation}
|
|
\def\restorehyphenation{\hyphenchar\font = `- }
|
|
|
|
% Set sfcode to normal for the chars that usually have another value.
|
|
% Can't use plain's \frenchspacing because it uses the `\x notation, and
|
|
% sometimes \x has an active definition that messes things up.
|
|
%
|
|
\catcode`@=11
|
|
\def\frenchspacing{%
|
|
\sfcode\dotChar =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m
|
|
\sfcode\colonChar=\@m \sfcode\semiChar =\@m \sfcode\commaChar =\@m
|
|
}
|
|
\catcode`@=\other
|
|
|
|
\def\t#1{%
|
|
{\tt \rawbackslash \frenchspacing #1}%
|
|
\null
|
|
}
|
|
\def\samp#1{`\tclose{#1}'\null}
|
|
\setfont\keyrm\rmshape{8}{1000}
|
|
\font\keysy=cmsy9
|
|
\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
|
|
\raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
|
|
\vbox{\hrule\kern-0.4pt
|
|
\hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
|
|
\kern-0.4pt\hrule}%
|
|
\kern-.06em\raise0.4pt\hbox{\angleright}}}}
|
|
% The old definition, with no lozenge:
|
|
%\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
|
|
\def\ctrl #1{{\tt \rawbackslash \hat}#1}
|
|
|
|
% @file, @option are the same as @samp.
|
|
\let\file=\samp
|
|
\let\option=\samp
|
|
|
|
% @code is a modification of @t,
|
|
% which makes spaces the same size as normal in the surrounding text.
|
|
\def\tclose#1{%
|
|
{%
|
|
% Change normal interword space to be same as for the current font.
|
|
\spaceskip = \fontdimen2\font
|
|
%
|
|
% Switch to typewriter.
|
|
\tt
|
|
%
|
|
% But `\ ' produces the large typewriter interword space.
|
|
\def\ {{\spaceskip = 0pt{} }}%
|
|
%
|
|
% Turn off hyphenation.
|
|
\nohyphenation
|
|
%
|
|
\rawbackslash
|
|
\frenchspacing
|
|
#1%
|
|
}%
|
|
\null
|
|
}
|
|
|
|
% We *must* turn on hyphenation at `-' and `_' in @code.
|
|
% Otherwise, it is too hard to avoid overfull hboxes
|
|
% in the Emacs manual, the Library manual, etc.
|
|
|
|
% Unfortunately, TeX uses one parameter (\hyphenchar) to control
|
|
% both hyphenation at - and hyphenation within words.
|
|
% We must therefore turn them both off (\tclose does that)
|
|
% and arrange explicitly to hyphenate at a dash.
|
|
% -- rms.
|
|
{
|
|
\catcode`\-=\active
|
|
\catcode`\_=\active
|
|
%
|
|
\global\def\code{\begingroup
|
|
\catcode`\-=\active \let-\codedash
|
|
\catcode`\_=\active \let_\codeunder
|
|
\codex
|
|
}
|
|
}
|
|
|
|
\def\realdash{-}
|
|
\def\codedash{-\discretionary{}{}{}}
|
|
\def\codeunder{%
|
|
% this is all so @math{@code{var_name}+1} can work. In math mode, _
|
|
% is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.)
|
|
% will therefore expand the active definition of _, which is us
|
|
% (inside @code that is), therefore an endless loop.
|
|
\ifusingtt{\ifmmode
|
|
\mathchar"075F % class 0=ordinary, family 7=ttfam, pos 0x5F=_.
|
|
\else\normalunderscore \fi
|
|
\discretionary{}{}{}}%
|
|
{\_}%
|
|
}
|
|
\def\codex #1{\tclose{#1}\endgroup}
|
|
|
|
% @kbd is like @code, except that if the argument is just one @key command,
|
|
% then @kbd has no effect.
|
|
|
|
% @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
|
|
% `example' (@kbd uses ttsl only inside of @example and friends),
|
|
% or `code' (@kbd uses normal tty font always).
|
|
\parseargdef\kbdinputstyle{%
|
|
\def\arg{#1}%
|
|
\ifx\arg\worddistinct
|
|
\gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
|
|
\else\ifx\arg\wordexample
|
|
\gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
|
|
\else\ifx\arg\wordcode
|
|
\gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
|
|
\else
|
|
\errhelp = \EMsimple
|
|
\errmessage{Unknown @kbdinputstyle option `\arg'}%
|
|
\fi\fi\fi
|
|
}
|
|
\def\worddistinct{distinct}
|
|
\def\wordexample{example}
|
|
\def\wordcode{code}
|
|
|
|
% Default is `distinct.'
|
|
\kbdinputstyle distinct
|
|
|
|
\def\xkey{\key}
|
|
\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
|
|
\ifx\one\xkey\ifx\threex\three \key{#2}%
|
|
\else{\tclose{\kbdfont\look}}\fi
|
|
\else{\tclose{\kbdfont\look}}\fi}
|
|
|
|
% For @url, @env, @command quotes seem unnecessary, so use \code.
|
|
\let\url=\code
|
|
\let\env=\code
|
|
\let\command=\code
|
|
|
|
% @uref (abbreviation for `urlref') takes an optional (comma-separated)
|
|
% second argument specifying the text to display and an optional third
|
|
% arg as text to display instead of (rather than in addition to) the url
|
|
% itself. First (mandatory) arg is the url. Perhaps eventually put in
|
|
% a hypertex \special here.
|
|
%
|
|
\def\uref#1{\douref #1,,,\finish}
|
|
\def\douref#1,#2,#3,#4\finish{\begingroup
|
|
\unsepspaces
|
|
\pdfurl{#1}%
|
|
\setbox0 = \hbox{\ignorespaces #3}%
|
|
\ifdim\wd0 > 0pt
|
|
\unhbox0 % third arg given, show only that
|
|
\else
|
|
\setbox0 = \hbox{\ignorespaces #2}%
|
|
\ifdim\wd0 > 0pt
|
|
\ifpdf
|
|
\unhbox0 % PDF: 2nd arg given, show only it
|
|
\else
|
|
\unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
|
|
\fi
|
|
\else
|
|
\code{#1}% only url given, so show it
|
|
\fi
|
|
\fi
|
|
\endlink
|
|
\endgroup}
|
|
|
|
% rms does not like angle brackets --karl, 17may97.
|
|
% So now @email is just like @uref, unless we are pdf.
|
|
%
|
|
%\def\email#1{\angleleft{\tt #1}\angleright}
|
|
\ifpdf
|
|
\def\email#1{\doemail#1,,\finish}
|
|
\def\doemail#1,#2,#3\finish{\begingroup
|
|
\unsepspaces
|
|
\pdfurl{mailto:#1}%
|
|
\setbox0 = \hbox{\ignorespaces #2}%
|
|
\ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
|
|
\endlink
|
|
\endgroup}
|
|
\else
|
|
\let\email=\uref
|
|
\fi
|
|
|
|
% Check if we are currently using a typewriter font. Since all the
|
|
% Computer Modern typewriter fonts have zero interword stretch (and
|
|
% shrink), and it is reasonable to expect all typewriter fonts to have
|
|
% this property, we can check that font parameter.
|
|
%
|
|
\def\ifmonospace{\ifdim\fontdimen3\font=0pt }
|
|
|
|
% Typeset a dimension, e.g., `in' or `pt'. The only reason for the
|
|
% argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
|
|
%
|
|
\def\dmn#1{\thinspace #1}
|
|
|
|
\def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
|
|
|
|
% @l was never documented to mean ``switch to the Lisp font'',
|
|
% and it is not used as such in any manual I can find. We need it for
|
|
% Polish suppressed-l. --karl, 22sep96.
|
|
%\def\l#1{{\li #1}\null}
|
|
|
|
% Explicit font changes: @r, @sc, undocumented @ii.
|
|
\def\r#1{{\rm #1}} % roman font
|
|
\def\sc#1{{\smallcaps#1}} % smallcaps font
|
|
\def\ii#1{{\it #1}} % italic font
|
|
|
|
\def\acronym#1{\doacronym #1,,\finish}
|
|
\def\doacronym#1,#2,#3\finish{%
|
|
{\selectfonts\lsize #1}%
|
|
\def\temp{#2}%
|
|
\ifx\temp\empty \else
|
|
\space ({\unsepspaces \ignorespaces \temp \unskip})%
|
|
\fi
|
|
}
|
|
|
|
% @pounds{} is a sterling sign, which is in the CM italic font.
|
|
%
|
|
\def\pounds{{\it\$}}
|
|
|
|
% @registeredsymbol - R in a circle. The font for the R should really
|
|
% be smaller yet, but lllsize is the best we can do for now.
|
|
% Adapted from the plain.tex definition of \copyright.
|
|
%
|
|
\def\registeredsymbol{%
|
|
$^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}%
|
|
\hfil\crcr\Orb}}%
|
|
}$%
|
|
}
|
|
|
|
|
|
\message{page headings,}
|
|
|
|
\newskip\titlepagetopglue \titlepagetopglue = 1.5in
|
|
\newskip\titlepagebottomglue \titlepagebottomglue = 2pc
|
|
|
|
% First the title page. Must do @settitle before @titlepage.
|
|
\newif\ifseenauthor
|
|
\newif\iffinishedtitlepage
|
|
|
|
% Do an implicit @contents or @shortcontents after @end titlepage if the
|
|
% user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
|
|
%
|
|
\newif\ifsetcontentsaftertitlepage
|
|
\let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
|
|
\newif\ifsetshortcontentsaftertitlepage
|
|
\let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
|
|
|
|
\parseargdef\shorttitlepage{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}%
|
|
\endgroup\page\hbox{}\page}
|
|
|
|
\envdef\titlepage{%
|
|
% Open one extra group, as we want to close it in the middle of \Etitlepage.
|
|
\begingroup
|
|
\parindent=0pt \textfonts
|
|
% Leave some space at the very top of the page.
|
|
\vglue\titlepagetopglue
|
|
% No rule at page bottom unless we print one at the top with @title.
|
|
\finishedtitlepagetrue
|
|
%
|
|
% Most title ``pages'' are actually two pages long, with space
|
|
% at the top of the second. We don't want the ragged left on the second.
|
|
\let\oldpage = \page
|
|
\def\page{%
|
|
\iffinishedtitlepage\else
|
|
\finishtitlepage
|
|
\fi
|
|
\let\page = \oldpage
|
|
\page
|
|
\null
|
|
}%
|
|
}
|
|
|
|
\def\Etitlepage{%
|
|
\iffinishedtitlepage\else
|
|
\finishtitlepage
|
|
\fi
|
|
% It is important to do the page break before ending the group,
|
|
% because the headline and footline are only empty inside the group.
|
|
% If we use the new definition of \page, we always get a blank page
|
|
% after the title page, which we certainly don't want.
|
|
\oldpage
|
|
\endgroup
|
|
%
|
|
% Need this before the \...aftertitlepage checks so that if they are
|
|
% in effect the toc pages will come out with page numbers.
|
|
\HEADINGSon
|
|
%
|
|
% If they want short, they certainly want long too.
|
|
\ifsetshortcontentsaftertitlepage
|
|
\shortcontents
|
|
\contents
|
|
\global\let\shortcontents = \relax
|
|
\global\let\contents = \relax
|
|
\fi
|
|
%
|
|
\ifsetcontentsaftertitlepage
|
|
\contents
|
|
\global\let\contents = \relax
|
|
\global\let\shortcontents = \relax
|
|
\fi
|
|
}
|
|
|
|
\def\finishtitlepage{%
|
|
\vskip4pt \hrule height 2pt width \hsize
|
|
\vskip\titlepagebottomglue
|
|
\finishedtitlepagetrue
|
|
}
|
|
|
|
%%% Macros to be used within @titlepage:
|
|
|
|
\let\subtitlerm=\tenrm
|
|
\def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}
|
|
|
|
\def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines
|
|
\let\tt=\authortt}
|
|
|
|
\parseargdef\title{%
|
|
\checkenv\titlepage
|
|
\leftline{\titlefonts\rm #1}
|
|
% print a rule at the page bottom also.
|
|
\finishedtitlepagefalse
|
|
\vskip4pt \hrule height 4pt width \hsize \vskip4pt
|
|
}
|
|
|
|
\parseargdef\subtitle{%
|
|
\checkenv\titlepage
|
|
{\subtitlefont \rightline{#1}}%
|
|
}
|
|
|
|
% @author should come last, but may come many times.
|
|
% It can also be used inside @quotation.
|
|
%
|
|
\parseargdef\author{%
|
|
\def\temp{\quotation}%
|
|
\ifx\thisenv\temp
|
|
\def\quotationauthor{#1}% printed in \Equotation.
|
|
\else
|
|
\checkenv\titlepage
|
|
\ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi
|
|
{\authorfont \leftline{#1}}%
|
|
\fi
|
|
}
|
|
|
|
|
|
%%% Set up page headings and footings.
|
|
|
|
\let\thispage=\folio
|
|
|
|
\newtoks\evenheadline % headline on even pages
|
|
\newtoks\oddheadline % headline on odd pages
|
|
\newtoks\evenfootline % footline on even pages
|
|
\newtoks\oddfootline % footline on odd pages
|
|
|
|
% Now make TeX use those variables
|
|
\headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
|
|
\else \the\evenheadline \fi}}
|
|
\footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
|
|
\else \the\evenfootline \fi}\HEADINGShook}
|
|
\let\HEADINGShook=\relax
|
|
|
|
% Commands to set those variables.
|
|
% For example, this is what @headings on does
|
|
% @evenheading @thistitle|@thispage|@thischapter
|
|
% @oddheading @thischapter|@thispage|@thistitle
|
|
% @evenfooting @thisfile||
|
|
% @oddfooting ||@thisfile
|
|
|
|
|
|
\def\evenheading{\parsearg\evenheadingxxx}
|
|
\def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish}
|
|
\def\evenheadingyyy #1\|#2\|#3\|#4\finish{%
|
|
\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
|
|
|
|
\def\oddheading{\parsearg\oddheadingxxx}
|
|
\def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish}
|
|
\def\oddheadingyyy #1\|#2\|#3\|#4\finish{%
|
|
\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
|
|
|
|
\parseargdef\everyheading{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
|
|
|
|
\def\evenfooting{\parsearg\evenfootingxxx}
|
|
\def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish}
|
|
\def\evenfootingyyy #1\|#2\|#3\|#4\finish{%
|
|
\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
|
|
|
|
\def\oddfooting{\parsearg\oddfootingxxx}
|
|
\def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish}
|
|
\def\oddfootingyyy #1\|#2\|#3\|#4\finish{%
|
|
\global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
|
|
%
|
|
% Leave some space for the footline. Hopefully ok to assume
|
|
% @evenfooting will not be used by itself.
|
|
\global\advance\pageheight by -\baselineskip
|
|
\global\advance\vsize by -\baselineskip
|
|
}
|
|
|
|
\parseargdef\everyfooting{\oddfootingxxx{#1}\evenfootingxxx{#1}}
|
|
|
|
|
|
% @headings double turns headings on for double-sided printing.
|
|
% @headings single turns headings on for single-sided printing.
|
|
% @headings off turns them off.
|
|
% @headings on same as @headings double, retained for compatibility.
|
|
% @headings after turns on double-sided headings after this page.
|
|
% @headings doubleafter turns on double-sided headings after this page.
|
|
% @headings singleafter turns on single-sided headings after this page.
|
|
% By default, they are off at the start of a document,
|
|
% and turned `on' after @end titlepage.
|
|
|
|
\def\headings #1 {\csname HEADINGS#1\endcsname}
|
|
|
|
\def\HEADINGSoff{%
|
|
\global\evenheadline={\hfil} \global\evenfootline={\hfil}
|
|
\global\oddheadline={\hfil} \global\oddfootline={\hfil}}
|
|
\HEADINGSoff
|
|
% When we turn headings on, set the page number to 1.
|
|
% For double-sided printing, put current file name in lower left corner,
|
|
% chapter name on inside top of right hand pages, document
|
|
% title on inside top of left hand pages, and page numbers on outside top
|
|
% edge of all pages.
|
|
\def\HEADINGSdouble{%
|
|
\global\pageno=1
|
|
\global\evenfootline={\hfil}
|
|
\global\oddfootline={\hfil}
|
|
\global\evenheadline={\line{\folio\hfil\thistitle}}
|
|
\global\oddheadline={\line{\thischapter\hfil\folio}}
|
|
\global\let\contentsalignmacro = \chapoddpage
|
|
}
|
|
\let\contentsalignmacro = \chappager
|
|
|
|
% For single-sided printing, chapter title goes across top left of page,
|
|
% page number on top right.
|
|
\def\HEADINGSsingle{%
|
|
\global\pageno=1
|
|
\global\evenfootline={\hfil}
|
|
\global\oddfootline={\hfil}
|
|
\global\evenheadline={\line{\thischapter\hfil\folio}}
|
|
\global\oddheadline={\line{\thischapter\hfil\folio}}
|
|
\global\let\contentsalignmacro = \chappager
|
|
}
|
|
\def\HEADINGSon{\HEADINGSdouble}
|
|
|
|
\def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
|
|
\let\HEADINGSdoubleafter=\HEADINGSafter
|
|
\def\HEADINGSdoublex{%
|
|
\global\evenfootline={\hfil}
|
|
\global\oddfootline={\hfil}
|
|
\global\evenheadline={\line{\folio\hfil\thistitle}}
|
|
\global\oddheadline={\line{\thischapter\hfil\folio}}
|
|
\global\let\contentsalignmacro = \chapoddpage
|
|
}
|
|
|
|
\def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
|
|
\def\HEADINGSsinglex{%
|
|
\global\evenfootline={\hfil}
|
|
\global\oddfootline={\hfil}
|
|
\global\evenheadline={\line{\thischapter\hfil\folio}}
|
|
\global\oddheadline={\line{\thischapter\hfil\folio}}
|
|
\global\let\contentsalignmacro = \chappager
|
|
}
|
|
|
|
% Subroutines used in generating headings
|
|
% This produces Day Month Year style of output.
|
|
% Only define if not already defined, in case a txi-??.tex file has set
|
|
% up a different format (e.g., txi-cs.tex does this).
|
|
\ifx\today\undefined
|
|
\def\today{%
|
|
\number\day\space
|
|
\ifcase\month
|
|
\or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr
|
|
\or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug
|
|
\or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec
|
|
\fi
|
|
\space\number\year}
|
|
\fi
|
|
|
|
% @settitle line... specifies the title of the document, for headings.
|
|
% It generates no output of its own.
|
|
\def\thistitle{\putwordNoTitle}
|
|
\def\settitle{\parsearg{\gdef\thistitle}}
|
|
|
|
|
|
\message{tables,}
|
|
% Tables -- @table, @ftable, @vtable, @item(x).
|
|
|
|
% default indentation of table text
|
|
\newdimen\tableindent \tableindent=.8in
|
|
% default indentation of @itemize and @enumerate text
|
|
\newdimen\itemindent \itemindent=.3in
|
|
% margin between end of table item and start of table text.
|
|
\newdimen\itemmargin \itemmargin=.1in
|
|
|
|
% used internally for \itemindent minus \itemmargin
|
|
\newdimen\itemmax
|
|
|
|
% Note @table, @ftable, and @vtable define @item, @itemx, etc., with
|
|
% these defs.
|
|
% They also define \itemindex
|
|
% to index the item name in whatever manner is desired (perhaps none).
|
|
|
|
\newif\ifitemxneedsnegativevskip
|
|
|
|
\def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
|
|
|
|
\def\internalBitem{\smallbreak \parsearg\itemzzz}
|
|
\def\internalBitemx{\itemxpar \parsearg\itemzzz}
|
|
|
|
\def\itemzzz #1{\begingroup %
|
|
\advance\hsize by -\rightskip
|
|
\advance\hsize by -\tableindent
|
|
\setbox0=\hbox{\itemindicate{#1}}%
|
|
\itemindex{#1}%
|
|
\nobreak % This prevents a break before @itemx.
|
|
%
|
|
% If the item text does not fit in the space we have, put it on a line
|
|
% by itself, and do not allow a page break either before or after that
|
|
% line. We do not start a paragraph here because then if the next
|
|
% command is, e.g., @kindex, the whatsit would get put into the
|
|
% horizontal list on a line by itself, resulting in extra blank space.
|
|
\ifdim \wd0>\itemmax
|
|
%
|
|
% Make this a paragraph so we get the \parskip glue and wrapping,
|
|
% but leave it ragged-right.
|
|
\begingroup
|
|
\advance\leftskip by-\tableindent
|
|
\advance\hsize by\tableindent
|
|
\advance\rightskip by0pt plus1fil
|
|
\leavevmode\unhbox0\par
|
|
\endgroup
|
|
%
|
|
% We're going to be starting a paragraph, but we don't want the
|
|
% \parskip glue -- logically it's part of the @item we just started.
|
|
\nobreak \vskip-\parskip
|
|
%
|
|
% Stop a page break at the \parskip glue coming up. (Unfortunately
|
|
% we can't prevent a possible page break at the following
|
|
% \baselineskip glue.) However, if what follows is an environment
|
|
% such as @example, there will be no \parskip glue; then
|
|
% the negative vskip we just would cause the example and the item to
|
|
% crash together. So we use this bizarre value of 10001 as a signal
|
|
% to \aboveenvbreak to insert \parskip glue after all.
|
|
% (Possibly there are other commands that could be followed by
|
|
% @example which need the same treatment, but not section titles; or
|
|
% maybe section titles are the only special case and they should be
|
|
% penalty 10001...)
|
|
\penalty 10001
|
|
\endgroup
|
|
\itemxneedsnegativevskipfalse
|
|
\else
|
|
% The item text fits into the space. Start a paragraph, so that the
|
|
% following text (if any) will end up on the same line.
|
|
\noindent
|
|
% Do this with kerns and \unhbox so that if there is a footnote in
|
|
% the item text, it can migrate to the main vertical list and
|
|
% eventually be printed.
|
|
\nobreak\kern-\tableindent
|
|
\dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0
|
|
\unhbox0
|
|
\nobreak\kern\dimen0
|
|
\endgroup
|
|
\itemxneedsnegativevskiptrue
|
|
\fi
|
|
}
|
|
|
|
\def\item{\errmessage{@item while not in a list environment}}
|
|
\def\itemx{\errmessage{@itemx while not in a list environment}}
|
|
|
|
% @table, @ftable, @vtable.
|
|
\envdef\table{%
|
|
\let\itemindex\gobble
|
|
\tablex
|
|
}
|
|
\envdef\ftable{%
|
|
\def\itemindex ##1{\doind {fn}{\code{##1}}}%
|
|
\tablex
|
|
}
|
|
\envdef\vtable{%
|
|
\def\itemindex ##1{\doind {vr}{\code{##1}}}%
|
|
\tablex
|
|
}
|
|
\def\tablex#1{%
|
|
\def\itemindicate{#1}%
|
|
\parsearg\tabley
|
|
}
|
|
\def\tabley#1{%
|
|
{%
|
|
\makevalueexpandable
|
|
\edef\temp{\noexpand\tablez #1\space\space\space}%
|
|
\expandafter
|
|
}\temp \endtablez
|
|
}
|
|
\def\tablez #1 #2 #3 #4\endtablez{%
|
|
\aboveenvbreak
|
|
\ifnum 0#1>0 \advance \leftskip by #1\mil \fi
|
|
\ifnum 0#2>0 \tableindent=#2\mil \fi
|
|
\ifnum 0#3>0 \advance \rightskip by #3\mil \fi
|
|
\itemmax=\tableindent
|
|
\advance \itemmax by -\itemmargin
|
|
\advance \leftskip by \tableindent
|
|
\exdentamount=\tableindent
|
|
\parindent = 0pt
|
|
\parskip = \smallskipamount
|
|
\ifdim \parskip=0pt \parskip=2pt \fi
|
|
\let\item = \internalBitem
|
|
\let\itemx = \internalBitemx
|
|
}
|
|
\def\Etable{\endgraf\afterenvbreak}
|
|
\let\Eftable\Etable
|
|
\let\Evtable\Etable
|
|
\let\Eitemize\Etable
|
|
\let\Eenumerate\Etable
|
|
|
|
% This is the counter used by @enumerate, which is really @itemize
|
|
|
|
\newcount \itemno
|
|
|
|
\envdef\itemize{\parsearg\doitemize}
|
|
|
|
\def\doitemize#1{%
|
|
\aboveenvbreak
|
|
\itemmax=\itemindent
|
|
\advance\itemmax by -\itemmargin
|
|
\advance\leftskip by \itemindent
|
|
\exdentamount=\itemindent
|
|
\parindent=0pt
|
|
\parskip=\smallskipamount
|
|
\ifdim\parskip=0pt \parskip=2pt \fi
|
|
\def\itemcontents{#1}%
|
|
% @itemize with no arg is equivalent to @itemize @bullet.
|
|
\ifx\itemcontents\empty\def\itemcontents{\bullet}\fi
|
|
\let\item=\itemizeitem
|
|
}
|
|
|
|
% Definition of @item while inside @itemize and @enumerate.
|
|
%
|
|
\def\itemizeitem{%
|
|
\advance\itemno by 1 % for enumerations
|
|
{\let\par=\endgraf \smallbreak}% reasonable place to break
|
|
{%
|
|
% If the document has an @itemize directly after a section title, a
|
|
% \nobreak will be last on the list, and \sectionheading will have
|
|
% done a \vskip-\parskip. In that case, we don't want to zero
|
|
% parskip, or the item text will crash with the heading. On the
|
|
% other hand, when there is normal text preceding the item (as there
|
|
% usually is), we do want to zero parskip, or there would be too much
|
|
% space. In that case, we won't have a \nobreak before. At least
|
|
% that's the theory.
|
|
\ifnum\lastpenalty<10000 \parskip=0in \fi
|
|
\noindent
|
|
\hbox to 0pt{\hss \itemcontents \kern\itemmargin}%
|
|
\vadjust{\penalty 1200}}% not good to break after first line of item.
|
|
\flushcr
|
|
}
|
|
|
|
% \splitoff TOKENS\endmark defines \first to be the first token in
|
|
% TOKENS, and \rest to be the remainder.
|
|
%
|
|
\def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
|
|
|
|
% Allow an optional argument of an uppercase letter, lowercase letter,
|
|
% or number, to specify the first label in the enumerated list. No
|
|
% argument is the same as `1'.
|
|
%
|
|
\envparseargdef\enumerate{\enumeratey #1 \endenumeratey}
|
|
\def\enumeratey #1 #2\endenumeratey{%
|
|
% If we were given no argument, pretend we were given `1'.
|
|
\def\thearg{#1}%
|
|
\ifx\thearg\empty \def\thearg{1}\fi
|
|
%
|
|
% Detect if the argument is a single token. If so, it might be a
|
|
% letter. Otherwise, the only valid thing it can be is a number.
|
|
% (We will always have one token, because of the test we just made.
|
|
% This is a good thing, since \splitoff doesn't work given nothing at
|
|
% all -- the first parameter is undelimited.)
|
|
\expandafter\splitoff\thearg\endmark
|
|
\ifx\rest\empty
|
|
% Only one token in the argument. It could still be anything.
|
|
% A ``lowercase letter'' is one whose \lccode is nonzero.
|
|
% An ``uppercase letter'' is one whose \lccode is both nonzero, and
|
|
% not equal to itself.
|
|
% Otherwise, we assume it's a number.
|
|
%
|
|
% We need the \relax at the end of the \ifnum lines to stop TeX from
|
|
% continuing to look for a <number>.
|
|
%
|
|
\ifnum\lccode\expandafter`\thearg=0\relax
|
|
\numericenumerate % a number (we hope)
|
|
\else
|
|
% It's a letter.
|
|
\ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
|
|
\lowercaseenumerate % lowercase letter
|
|
\else
|
|
\uppercaseenumerate % uppercase letter
|
|
\fi
|
|
\fi
|
|
\else
|
|
% Multiple tokens in the argument. We hope it's a number.
|
|
\numericenumerate
|
|
\fi
|
|
}
|
|
|
|
% An @enumerate whose labels are integers. The starting integer is
|
|
% given in \thearg.
|
|
%
|
|
\def\numericenumerate{%
|
|
\itemno = \thearg
|
|
\startenumeration{\the\itemno}%
|
|
}
|
|
|
|
% The starting (lowercase) letter is in \thearg.
|
|
\def\lowercaseenumerate{%
|
|
\itemno = \expandafter`\thearg
|
|
\startenumeration{%
|
|
% Be sure we're not beyond the end of the alphabet.
|
|
\ifnum\itemno=0
|
|
\errmessage{No more lowercase letters in @enumerate; get a bigger
|
|
alphabet}%
|
|
\fi
|
|
\char\lccode\itemno
|
|
}%
|
|
}
|
|
|
|
% The starting (uppercase) letter is in \thearg.
|
|
\def\uppercaseenumerate{%
|
|
\itemno = \expandafter`\thearg
|
|
\startenumeration{%
|
|
% Be sure we're not beyond the end of the alphabet.
|
|
\ifnum\itemno=0
|
|
\errmessage{No more uppercase letters in @enumerate; get a bigger
|
|
alphabet}
|
|
\fi
|
|
\char\uccode\itemno
|
|
}%
|
|
}
|
|
|
|
% Call \doitemize, adding a period to the first argument and supplying the
|
|
% common last two arguments. Also subtract one from the initial value in
|
|
% \itemno, since @item increments \itemno.
|
|
%
|
|
\def\startenumeration#1{%
|
|
\advance\itemno by -1
|
|
\doitemize{#1.}\flushcr
|
|
}
|
|
|
|
% @alphaenumerate and @capsenumerate are abbreviations for giving an arg
|
|
% to @enumerate.
|
|
%
|
|
\def\alphaenumerate{\enumerate{a}}
|
|
\def\capsenumerate{\enumerate{A}}
|
|
\def\Ealphaenumerate{\Eenumerate}
|
|
\def\Ecapsenumerate{\Eenumerate}
|
|
|
|
|
|
% @multitable macros
|
|
% Amy Hendrickson, 8/18/94, 3/6/96
|
|
%
|
|
% @multitable ... @end multitable will make as many columns as desired.
|
|
% Contents of each column will wrap at width given in preamble. Width
|
|
% can be specified either with sample text given in a template line,
|
|
% or in percent of \hsize, the current width of text on page.
|
|
|
|
% Table can continue over pages but will only break between lines.
|
|
|
|
% To make preamble:
|
|
%
|
|
% Either define widths of columns in terms of percent of \hsize:
|
|
% @multitable @columnfractions .25 .3 .45
|
|
% @item ...
|
|
%
|
|
% Numbers following @columnfractions are the percent of the total
|
|
% current hsize to be used for each column. You may use as many
|
|
% columns as desired.
|
|
|
|
|
|
% Or use a template:
|
|
% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
|
|
% @item ...
|
|
% using the widest term desired in each column.
|
|
|
|
% Each new table line starts with @item, each subsequent new column
|
|
% starts with @tab. Empty columns may be produced by supplying @tab's
|
|
% with nothing between them for as many times as empty columns are needed,
|
|
% ie, @tab@tab@tab will produce two empty columns.
|
|
|
|
% @item, @tab do not need to be on their own lines, but it will not hurt
|
|
% if they are.
|
|
|
|
% Sample multitable:
|
|
|
|
% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
|
|
% @item first col stuff @tab second col stuff @tab third col
|
|
% @item
|
|
% first col stuff
|
|
% @tab
|
|
% second col stuff
|
|
% @tab
|
|
% third col
|
|
% @item first col stuff @tab second col stuff
|
|
% @tab Many paragraphs of text may be used in any column.
|
|
%
|
|
% They will wrap at the width determined by the template.
|
|
% @item@tab@tab This will be in third column.
|
|
% @end multitable
|
|
|
|
% Default dimensions may be reset by user.
|
|
% @multitableparskip is vertical space between paragraphs in table.
|
|
% @multitableparindent is paragraph indent in table.
|
|
% @multitablecolmargin is horizontal space to be left between columns.
|
|
% @multitablelinespace is space to leave between table items, baseline
|
|
% to baseline.
|
|
% 0pt means it depends on current normal line spacing.
|
|
%
|
|
\newskip\multitableparskip
|
|
\newskip\multitableparindent
|
|
\newdimen\multitablecolspace
|
|
\newskip\multitablelinespace
|
|
\multitableparskip=0pt
|
|
\multitableparindent=6pt
|
|
\multitablecolspace=12pt
|
|
\multitablelinespace=0pt
|
|
|
|
% Macros used to set up halign preamble:
|
|
%
|
|
\let\endsetuptable\relax
|
|
\def\xendsetuptable{\endsetuptable}
|
|
\let\columnfractions\relax
|
|
\def\xcolumnfractions{\columnfractions}
|
|
\newif\ifsetpercent
|
|
|
|
% #1 is the @columnfraction, usually a decimal number like .5, but might
|
|
% be just 1. We just use it, whatever it is.
|
|
%
|
|
\def\pickupwholefraction#1 {%
|
|
\global\advance\colcount by 1
|
|
\expandafter\xdef\csname col\the\colcount\endcsname{#1\hsize}%
|
|
\setuptable
|
|
}
|
|
|
|
\newcount\colcount
|
|
\def\setuptable#1{%
|
|
\def\firstarg{#1}%
|
|
\ifx\firstarg\xendsetuptable
|
|
\let\go = \relax
|
|
\else
|
|
\ifx\firstarg\xcolumnfractions
|
|
\global\setpercenttrue
|
|
\else
|
|
\ifsetpercent
|
|
\let\go\pickupwholefraction
|
|
\else
|
|
\global\advance\colcount by 1
|
|
\setbox0=\hbox{#1\unskip\space}% Add a normal word space as a
|
|
% separator; typically that is always in the input, anyway.
|
|
\expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
|
|
\fi
|
|
\fi
|
|
\ifx\go\pickupwholefraction
|
|
% Put the argument back for the \pickupwholefraction call, so
|
|
% we'll always have a period there to be parsed.
|
|
\def\go{\pickupwholefraction#1}%
|
|
\else
|
|
\let\go = \setuptable
|
|
\fi%
|
|
\fi
|
|
\go
|
|
}
|
|
|
|
% multitable-only commands.
|
|
%
|
|
% @headitem starts a heading row, which we typeset in bold.
|
|
% Assignments have to be global since we are inside the implicit group
|
|
% of an alignment entry. Note that \everycr resets \everytab.
|
|
\def\headitem{\checkenv\multitable \crcr \global\everytab={\bf}\the\everytab}%
|
|
%
|
|
% A \tab used to include \hskip1sp. But then the space in a template
|
|
% line is not enough. That is bad. So let's go back to just `&' until
|
|
% we encounter the problem it was intended to solve again.
|
|
% --karl, nathan@acm.org, 20apr99.
|
|
\def\tab{\checkenv\multitable &\the\everytab}%
|
|
|
|
% @multitable ... @end multitable definitions:
|
|
%
|
|
\newtoks\everytab % insert after every tab.
|
|
%
|
|
\envdef\multitable{%
|
|
\vskip\parskip
|
|
\startsavinginserts
|
|
%
|
|
% @item within a multitable starts a normal row.
|
|
\let\item\crcr
|
|
%
|
|
\tolerance=9500
|
|
\hbadness=9500
|
|
\setmultitablespacing
|
|
\parskip=\multitableparskip
|
|
\parindent=\multitableparindent
|
|
\overfullrule=0pt
|
|
\global\colcount=0
|
|
%
|
|
\everycr = {%
|
|
\noalign{%
|
|
\global\everytab={}%
|
|
\global\colcount=0 % Reset the column counter.
|
|
% Check for saved footnotes, etc.
|
|
\checkinserts
|
|
% Keeps underfull box messages off when table breaks over pages.
|
|
%\filbreak
|
|
% Maybe so, but it also creates really weird page breaks when the
|
|
% table breaks over pages. Wouldn't \vfil be better? Wait until the
|
|
% problem manifests itself, so it can be fixed for real --karl.
|
|
}%
|
|
}%
|
|
%
|
|
\parsearg\domultitable
|
|
}
|
|
\def\domultitable#1{%
|
|
% To parse everything between @multitable and @item:
|
|
\setuptable#1 \endsetuptable
|
|
%
|
|
% This preamble sets up a generic column definition, which will
|
|
% be used as many times as user calls for columns.
|
|
% \vtop will set a single line and will also let text wrap and
|
|
% continue for many paragraphs if desired.
|
|
\halign\bgroup &%
|
|
\global\advance\colcount by 1
|
|
\multistrut
|
|
\vtop{%
|
|
% Use the current \colcount to find the correct column width:
|
|
\hsize=\expandafter\csname col\the\colcount\endcsname
|
|
%
|
|
% In order to keep entries from bumping into each other
|
|
% we will add a \leftskip of \multitablecolspace to all columns after
|
|
% the first one.
|
|
%
|
|
% If a template has been used, we will add \multitablecolspace
|
|
% to the width of each template entry.
|
|
%
|
|
% If the user has set preamble in terms of percent of \hsize we will
|
|
% use that dimension as the width of the column, and the \leftskip
|
|
% will keep entries from bumping into each other. Table will start at
|
|
% left margin and final column will justify at right margin.
|
|
%
|
|
% Make sure we don't inherit \rightskip from the outer environment.
|
|
\rightskip=0pt
|
|
\ifnum\colcount=1
|
|
% The first column will be indented with the surrounding text.
|
|
\advance\hsize by\leftskip
|
|
\else
|
|
\ifsetpercent \else
|
|
% If user has not set preamble in terms of percent of \hsize
|
|
% we will advance \hsize by \multitablecolspace.
|
|
\advance\hsize by \multitablecolspace
|
|
\fi
|
|
% In either case we will make \leftskip=\multitablecolspace:
|
|
\leftskip=\multitablecolspace
|
|
\fi
|
|
% Ignoring space at the beginning and end avoids an occasional spurious
|
|
% blank line, when TeX decides to break the line at the space before the
|
|
% box from the multistrut, so the strut ends up on a line by itself.
|
|
% For example:
|
|
% @multitable @columnfractions .11 .89
|
|
% @item @code{#}
|
|
% @tab Legal holiday which is valid in major parts of the whole country.
|
|
% Is automatically provided with highlighting sequences respectively
|
|
% marking characters.
|
|
\noindent\ignorespaces##\unskip\multistrut
|
|
}\cr
|
|
}
|
|
\def\Emultitable{%
|
|
\crcr
|
|
\egroup % end the \halign
|
|
\global\setpercentfalse
|
|
}
|
|
|
|
\def\setmultitablespacing{% test to see if user has set \multitablelinespace.
|
|
% If so, do nothing. If not, give it an appropriate dimension based on
|
|
% current baselineskip.
|
|
\ifdim\multitablelinespace=0pt
|
|
\setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
|
|
\global\advance\multitablelinespace by-\ht0
|
|
%% strut to put in table in case some entry doesn't have descenders,
|
|
%% to keep lines equally spaced
|
|
\let\multistrut = \strut
|
|
\else
|
|
%% FIXME: what is \box0 supposed to be?
|
|
\gdef\multistrut{\vrule height\multitablelinespace depth\dp0
|
|
width0pt\relax} \fi
|
|
%% Test to see if parskip is larger than space between lines of
|
|
%% table. If not, do nothing.
|
|
%% If so, set to same dimension as multitablelinespace.
|
|
\ifdim\multitableparskip>\multitablelinespace
|
|
\global\multitableparskip=\multitablelinespace
|
|
\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
|
|
%% than skip between lines in the table.
|
|
\fi%
|
|
\ifdim\multitableparskip=0pt
|
|
\global\multitableparskip=\multitablelinespace
|
|
\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
|
|
%% than skip between lines in the table.
|
|
\fi}
|
|
|
|
|
|
\message{conditionals,}
|
|
|
|
% @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext,
|
|
% @ifnotxml always succeed. They currently do nothing; we don't
|
|
% attempt to check whether the conditionals are properly nested. But we
|
|
% have to remember that they are conditionals, so that @end doesn't
|
|
% attempt to close an environment group.
|
|
%
|
|
\def\makecond#1{%
|
|
\expandafter\let\csname #1\endcsname = \relax
|
|
\expandafter\let\csname iscond.#1\endcsname = 1
|
|
}
|
|
\makecond{iftex}
|
|
\makecond{ifnotdocbook}
|
|
\makecond{ifnothtml}
|
|
\makecond{ifnotinfo}
|
|
\makecond{ifnotplaintext}
|
|
\makecond{ifnotxml}
|
|
|
|
% Ignore @ignore, @ifhtml, @ifinfo, and the like.
|
|
%
|
|
\def\direntry{\doignore{direntry}}
|
|
\def\documentdescription{\doignore{documentdescription}}
|
|
\def\docbook{\doignore{docbook}}
|
|
\def\html{\doignore{html}}
|
|
\def\ifdocbook{\doignore{ifdocbook}}
|
|
\def\ifhtml{\doignore{ifhtml}}
|
|
\def\ifinfo{\doignore{ifinfo}}
|
|
\def\ifnottex{\doignore{ifnottex}}
|
|
\def\ifplaintext{\doignore{ifplaintext}}
|
|
\def\ifxml{\doignore{ifxml}}
|
|
\def\ignore{\doignore{ignore}}
|
|
\def\menu{\doignore{menu}}
|
|
\def\xml{\doignore{xml}}
|
|
|
|
% Ignore text until a line `@end #1', keeping track of nested conditionals.
|
|
%
|
|
% A count to remember the depth of nesting.
|
|
\newcount\doignorecount
|
|
|
|
\def\doignore#1{\begingroup
|
|
% Scan in ``verbatim'' mode:
|
|
\catcode`\@ = \other
|
|
\catcode`\{ = \other
|
|
\catcode`\} = \other
|
|
%
|
|
% Make sure that spaces turn into tokens that match what \doignoretext wants.
|
|
\spaceisspace
|
|
%
|
|
% Count number of #1's that we've seen.
|
|
\doignorecount = 0
|
|
%
|
|
% Swallow text until we reach the matching `@end #1'.
|
|
\dodoignore {#1}%
|
|
}
|
|
|
|
{ \catcode`_=11 % We want to use \_STOP_ which cannot appear in texinfo source.
|
|
\obeylines %
|
|
%
|
|
\gdef\dodoignore#1{%
|
|
% #1 contains the string `ifinfo'.
|
|
%
|
|
% Define a command to find the next `@end #1', which must be on a line
|
|
% by itself.
|
|
\long\def\doignoretext##1^^M@end #1{\doignoretextyyy##1^^M@#1\_STOP_}%
|
|
% And this command to find another #1 command, at the beginning of a
|
|
% line. (Otherwise, we would consider a line `@c @ifset', for
|
|
% example, to count as an @ifset for nesting.)
|
|
\long\def\doignoretextyyy##1^^M@#1##2\_STOP_{\doignoreyyy{##2}\_STOP_}%
|
|
%
|
|
% And now expand that command.
|
|
\obeylines %
|
|
\doignoretext ^^M%
|
|
}%
|
|
}
|
|
|
|
\def\doignoreyyy#1{%
|
|
\def\temp{#1}%
|
|
\ifx\temp\empty % Nothing found.
|
|
\let\next\doignoretextzzz
|
|
\else % Found a nested condition, ...
|
|
\advance\doignorecount by 1
|
|
\let\next\doignoretextyyy % ..., look for another.
|
|
% If we're here, #1 ends with ^^M\ifinfo (for example).
|
|
\fi
|
|
\next #1% the token \_STOP_ is present just after this macro.
|
|
}
|
|
|
|
% We have to swallow the remaining "\_STOP_".
|
|
%
|
|
\def\doignoretextzzz#1{%
|
|
\ifnum\doignorecount = 0 % We have just found the outermost @end.
|
|
\let\next\enddoignore
|
|
\else % Still inside a nested condition.
|
|
\advance\doignorecount by -1
|
|
\let\next\doignoretext % Look for the next @end.
|
|
\fi
|
|
\next
|
|
}
|
|
|
|
% Finish off ignored text.
|
|
\def\enddoignore{\endgroup\ignorespaces}
|
|
|
|
|
|
% @set VAR sets the variable VAR to an empty value.
|
|
% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
|
|
%
|
|
% Since we want to separate VAR from REST-OF-LINE (which might be
|
|
% empty), we can't just use \parsearg; we have to insert a space of our
|
|
% own to delimit the rest of the line, and then take it out again if we
|
|
% didn't need it.
|
|
% We rely on the fact that \parsearg sets \catcode`\ =10.
|
|
%
|
|
\parseargdef\set{\setyyy#1 \endsetyyy}
|
|
\def\setyyy#1 #2\endsetyyy{%
|
|
{%
|
|
\makevalueexpandable
|
|
\def\temp{#2}%
|
|
\edef\next{\gdef\makecsname{SET#1}}%
|
|
\ifx\temp\empty
|
|
\next{}%
|
|
\else
|
|
\setzzz#2\endsetzzz
|
|
\fi
|
|
}%
|
|
}
|
|
% Remove the trailing space \setxxx inserted.
|
|
\def\setzzz#1 \endsetzzz{\next{#1}}
|
|
|
|
% @clear VAR clears (i.e., unsets) the variable VAR.
|
|
%
|
|
\parseargdef\clear{%
|
|
{%
|
|
\makevalueexpandable
|
|
\global\expandafter\let\csname SET#1\endcsname=\relax
|
|
}%
|
|
}
|
|
|
|
% @value{foo} gets the text saved in variable foo.
|
|
\def\value{\begingroup\makevalueexpandable\valuexxx}
|
|
\def\valuexxx#1{\expandablevalue{#1}\endgroup}
|
|
{
|
|
\catcode`\- = \active \catcode`\_ = \active
|
|
%
|
|
\gdef\makevalueexpandable{%
|
|
\let\value = \expandablevalue
|
|
% We don't want these characters active, ...
|
|
\catcode`\-=\other \catcode`\_=\other
|
|
% ..., but we might end up with active ones in the argument if
|
|
% we're called from @code, as @code{@value{foo-bar_}}, though.
|
|
% So \let them to their normal equivalents.
|
|
\let-\realdash \let_\normalunderscore
|
|
}
|
|
}
|
|
|
|
% We have this subroutine so that we can handle at least some @value's
|
|
% properly in indexes (we call \makevalueexpandable in \indexdummies).
|
|
% The command has to be fully expandable (if the variable is set), since
|
|
% the result winds up in the index file. This means that if the
|
|
% variable's value contains other Texinfo commands, it's almost certain
|
|
% it will fail (although perhaps we could fix that with sufficient work
|
|
% to do a one-level expansion on the result, instead of complete).
|
|
%
|
|
\def\expandablevalue#1{%
|
|
\expandafter\ifx\csname SET#1\endcsname\relax
|
|
{[No value for ``#1'']}%
|
|
\message{Variable `#1', used in @value, is not set.}%
|
|
\else
|
|
\csname SET#1\endcsname
|
|
\fi
|
|
}
|
|
|
|
% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
|
|
% with @set.
|
|
%
|
|
% To get special treatment of `@end ifset,' call \makeond and the redefine.
|
|
%
|
|
\makecond{ifset}
|
|
\def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}}
|
|
\def\doifset#1#2{%
|
|
{%
|
|
\makevalueexpandable
|
|
\let\next=\empty
|
|
\expandafter\ifx\csname SET#2\endcsname\relax
|
|
#1% If not set, redefine \next.
|
|
\fi
|
|
\expandafter
|
|
}\next
|
|
}
|
|
\def\ifsetfail{\doignore{ifset}}
|
|
|
|
% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
|
|
% defined with @set, or has been undefined with @clear.
|
|
%
|
|
% The `\else' inside the `\doifset' parameter is a trick to reuse the
|
|
% above code: if the variable is not set, do nothing, if it is set,
|
|
% then redefine \next to \ifclearfail.
|
|
%
|
|
\makecond{ifclear}
|
|
\def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}}
|
|
\def\ifclearfail{\doignore{ifclear}}
|
|
|
|
% @dircategory CATEGORY -- specify a category of the dir file
|
|
% which this file should belong to. Ignore this in TeX.
|
|
\let\dircategory=\comment
|
|
|
|
% @defininfoenclose.
|
|
\let\definfoenclose=\comment
|
|
|
|
|
|
\message{indexing,}
|
|
% Index generation facilities
|
|
|
|
% Define \newwrite to be identical to plain tex's \newwrite
|
|
% except not \outer, so it can be used within \newindex.
|
|
{\catcode`\@=11
|
|
\gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
|
|
|
|
% \newindex {foo} defines an index named foo.
|
|
% It automatically defines \fooindex such that
|
|
% \fooindex ...rest of line... puts an entry in the index foo.
|
|
% It also defines \fooindfile to be the number of the output channel for
|
|
% the file that accumulates this index. The file's extension is foo.
|
|
% The name of an index should be no more than 2 characters long
|
|
% for the sake of vms.
|
|
%
|
|
\def\newindex#1{%
|
|
\iflinks
|
|
\expandafter\newwrite \csname#1indfile\endcsname
|
|
\openout \csname#1indfile\endcsname \jobname.#1 % Open the file
|
|
\fi
|
|
\expandafter\xdef\csname#1index\endcsname{% % Define @#1index
|
|
\noexpand\doindex{#1}}
|
|
}
|
|
|
|
% @defindex foo == \newindex{foo}
|
|
%
|
|
\def\defindex{\parsearg\newindex}
|
|
|
|
% Define @defcodeindex, like @defindex except put all entries in @code.
|
|
%
|
|
\def\defcodeindex{\parsearg\newcodeindex}
|
|
%
|
|
\def\newcodeindex#1{%
|
|
\iflinks
|
|
\expandafter\newwrite \csname#1indfile\endcsname
|
|
\openout \csname#1indfile\endcsname \jobname.#1
|
|
\fi
|
|
\expandafter\xdef\csname#1index\endcsname{%
|
|
\noexpand\docodeindex{#1}}%
|
|
}
|
|
|
|
|
|
% @synindex foo bar makes index foo feed into index bar.
|
|
% Do this instead of @defindex foo if you don't want it as a separate index.
|
|
%
|
|
% @syncodeindex foo bar similar, but put all entries made for index foo
|
|
% inside @code.
|
|
%
|
|
\def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}}
|
|
\def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}}
|
|
|
|
% #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
|
|
% #3 the target index (bar).
|
|
\def\dosynindex#1#2#3{%
|
|
% Only do \closeout if we haven't already done it, else we'll end up
|
|
% closing the target index.
|
|
\expandafter \ifx\csname donesynindex#2\endcsname \undefined
|
|
% The \closeout helps reduce unnecessary open files; the limit on the
|
|
% Acorn RISC OS is a mere 16 files.
|
|
\expandafter\closeout\csname#2indfile\endcsname
|
|
\expandafter\let\csname\donesynindex#2\endcsname = 1
|
|
\fi
|
|
% redefine \fooindfile:
|
|
\expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
|
|
\expandafter\let\csname#2indfile\endcsname=\temp
|
|
% redefine \fooindex:
|
|
\expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
|
|
}
|
|
|
|
% Define \doindex, the driver for all \fooindex macros.
|
|
% Argument #1 is generated by the calling \fooindex macro,
|
|
% and it is "foo", the name of the index.
|
|
|
|
% \doindex just uses \parsearg; it calls \doind for the actual work.
|
|
% This is because \doind is more useful to call from other macros.
|
|
|
|
% There is also \dosubind {index}{topic}{subtopic}
|
|
% which makes an entry in a two-level index such as the operation index.
|
|
|
|
\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
|
|
\def\singleindexer #1{\doind{\indexname}{#1}}
|
|
|
|
% like the previous two, but they put @code around the argument.
|
|
\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
|
|
\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
|
|
|
|
% Take care of Texinfo commands that can appear in an index entry.
|
|
% Since there are some commands we want to expand, and others we don't,
|
|
% we have to laboriously prevent expansion for those that we don't.
|
|
%
|
|
\def\indexdummies{%
|
|
\def\@{@}% change to @@ when we switch to @ as escape char in index files.
|
|
\def\ {\realbackslash\space }%
|
|
% Need these in case \tex is in effect and \{ is a \delimiter again.
|
|
% But can't use \lbracecmd and \rbracecmd because texindex assumes
|
|
% braces and backslashes are used only as delimiters.
|
|
\let\{ = \mylbrace
|
|
\let\} = \myrbrace
|
|
%
|
|
% \definedummyword defines \#1 as \realbackslash #1\space, thus
|
|
% effectively preventing its expansion. This is used only for control
|
|
% words, not control letters, because the \space would be incorrect
|
|
% for control characters, but is needed to separate the control word
|
|
% from whatever follows.
|
|
%
|
|
% For control letters, we have \definedummyletter, which omits the
|
|
% space.
|
|
%
|
|
% These can be used both for control words that take an argument and
|
|
% those that do not. If it is followed by {arg} in the input, then
|
|
% that will dutifully get written to the index (or wherever).
|
|
%
|
|
\def\definedummyword##1{%
|
|
\expandafter\def\csname ##1\endcsname{\realbackslash ##1\space}%
|
|
}%
|
|
\def\definedummyletter##1{%
|
|
\expandafter\def\csname ##1\endcsname{\realbackslash ##1}%
|
|
}%
|
|
%
|
|
% Do the redefinitions.
|
|
\commondummies
|
|
}
|
|
|
|
% For the aux file, @ is the escape character. So we want to redefine
|
|
% everything using @ instead of \realbackslash. When everything uses
|
|
% @, this will be simpler.
|
|
%
|
|
\def\atdummies{%
|
|
\def\@{@@}%
|
|
\def\ {@ }%
|
|
\let\{ = \lbraceatcmd
|
|
\let\} = \rbraceatcmd
|
|
%
|
|
% (See comments in \indexdummies.)
|
|
\def\definedummyword##1{%
|
|
\expandafter\def\csname ##1\endcsname{@##1\space}%
|
|
}%
|
|
\def\definedummyletter##1{%
|
|
\expandafter\def\csname ##1\endcsname{@##1}%
|
|
}%
|
|
%
|
|
% Do the redefinitions.
|
|
\commondummies
|
|
}
|
|
|
|
% Called from \indexdummies and \atdummies. \definedummyword and
|
|
% \definedummyletter must be defined first.
|
|
%
|
|
\def\commondummies{%
|
|
%
|
|
\normalturnoffactive
|
|
%
|
|
\commondummiesnofonts
|
|
%
|
|
\definedummyletter{_}%
|
|
%
|
|
% Non-English letters.
|
|
\definedummyword{AA}%
|
|
\definedummyword{AE}%
|
|
\definedummyword{L}%
|
|
\definedummyword{OE}%
|
|
\definedummyword{O}%
|
|
\definedummyword{aa}%
|
|
\definedummyword{ae}%
|
|
\definedummyword{l}%
|
|
\definedummyword{oe}%
|
|
\definedummyword{o}%
|
|
\definedummyword{ss}%
|
|
\definedummyword{exclamdown}%
|
|
\definedummyword{questiondown}%
|
|
\definedummyword{ordf}%
|
|
\definedummyword{ordm}%
|
|
%
|
|
% Although these internal commands shouldn't show up, sometimes they do.
|
|
\definedummyword{bf}%
|
|
\definedummyword{gtr}%
|
|
|