summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/tex/latex/seminar/2up.tex
blob: 51b72e801161ad89e297cd08029ba13fa459d690 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
%% BEGIN 2up.tex/2up.sty
%%
\def\fileversion{1.2}
\def\filedate{93/01/28}
%%
%% COPYRIGHT 1992, 1993 by Timothy Van Zandt, Timothy.VAN-ZANDT@insead.edu
%%
%% DESCRIPTION:
%%   2up.tex/2up.sty provides two-up printing for Generic TeX (e.g.,
%%   Plain, LaTeX, AmSTeX and AmS-LaTeX). It produces a standard dvi file,
%%   and does not involve an additional dvi or PostScript filter. It has a
%%   flexible interface for specifying paper size and layout.
%%
%% INSTALLATION:
%%   Put this file where your TeX looks for inputs, under the name 2up.tex.
%%   Name a copy 2up.sty to use as a LaTeX style option, or create a file
%%   2up.sty with the lines:
%%     \input 2up.tex
%%     \endinput
%%
%% DOCUMENTATION:
%%   Input 2up.tex, or include 2up as a LaTeX style option. There is a
%%   good chance you will get the desired layout. (But you will probably
%%   need to generate new font bitmaps to get high quality output.) See
%%   2up.doc, which might be appended to this file, for detailed
%%   documentation.
%%
%% CODE:
%
\csname TwoUpLoaded\endcsname
\let\TwoUpLoaded\endinput
%
\edef\TheAtCode{\the\catcode`\@}
\catcode`\@=11\relax
\message{\space\space v\fileversion\space\space \filedate\space\space <tvz>}
%
% Parameter registers:
\newdimen\@targetwidth
\newdimen\@targetheight
\newdimen\@sourcewidth
\newdimen\@sourceheight
\newdimen\pageseplength
\newdimen\pagesepwidth
\newdimen\pagesepoffset
\newif\if@sidebyside
\@sidebysidetrue
\newif\if@twosided
%
% Registers used by output routine.
\newif\if@leftpage
\@leftpagetrue
\newbox\@leftpage
\newbox\@rightpage
\newcount\@physicalpage
%
% Since pages are shipped out half as often:
\multiply\maxdeadcycles by 2
%
% Registers used only for booklet layout:
\begingroup
  \let\newcount\relax
  \gdef\booklet@registers{%
    \newcount\bookletpage
    \bookletpage=0
    \newcount\leftpagenumber
    \newcount\rightpagenumber
    \multiply\maxdeadcycles by 20}
\endgroup
%
% A useful extension of the \magstep macro.
\def\magstepminus#1{%
  \ifcase#1 \@m\or 833\or 694\or 579\or 482\or 401\fi\relax}
%
% \@targetwidth and \@targetheight are set to the *unmagnified* dimensions
% of the target page. \inv@targetmag is the inverse of the target
% magnification.
{\catcode`\p=12\catcode`\t=12\gdef\@@inv@@mag#1pt#2{\def#2{#1}}}
\def\target#1#2#3{%
  \mag #1\relax
  \@targetwidth=1000pt
  \divide\@targetwidth by #1\relax
  \expandafter\@@inv@@mag\the\@targetwidth\inv@targetmag
  \@targetwidth=#2\relax
  \@targetwidth=\inv@targetmag\@targetwidth
  \@targetheight=#3\relax
  \@targetheight=\inv@targetmag\@targetheight}
%
% Like \target, but for the source:
\def\source#1#2#3{%
  \@sourcewidth=1000pt
  \divide\@sourcewidth by #1\relax
  \expandafter\@@inv@@mag\the\@sourcewidth\inv@sourcemag
  \@sourcewidth=#2\relax
  \@sourcewidth=\inv@sourcemag\@sourcewidth
  \@sourceheight=#3\relax
  \@sourceheight=\inv@sourcemag\@sourceheight}
%
% \targetlayout does a loop that reads the comma separated arguments.
% There can be no extraneous spaces.
\def\targetlayout#1{\process@targetlayout#1,stop,}
\def\process@targetlayout#1,{%
  \expandafter\let\expandafter\next\csname target@#1\endcsname
  \ifx\next\relax
    \begingroup
      \errhelp{Valid target layouts are "topbottom", "twosided",
        "booklet", "Booklet" and "dvidvi".}%
      \errmessage{`#1' is invalid 2up target layout - ignored.}%
    \endgroup
    \expandafter\process@targetlayout
  \else
    \next
  \fi}
\def\target@stop{}
\def\target@booklet{%
  \booklet@registers
  \def\ship@@@leftpage{\save@booklet\@leftpage}%
  \def\ship@@@rightpage{\save@booklet\@rightpage}%
  \@leftpagefalse
  \def\twoup@eject{\twoup@eject@booklet}%
  \expandafter\process@targetlayout}
\def\target@Booklet{%
  \def\booklet@@loop{\Booklet@@loop}%
  \target@booklet}
\def\target@twosided{%
  \@twosidedtrue
  \expandafter\process@targetlayout}
\def\target@topbottom{%
  \def\make@@halfpage{\make@@halftopbottom}%
  \def\make@fullpage{\make@fulltopbottom}%
  \@sidebysidefalse
  \expandafter\process@targetlayout}
\def\target@dvidvi{%
  \def\ship@@@leftpage{\ship@dvidvi\@leftpage}%
  \def\ship@@@rightpage{\ship@dvidvi\@rightpage}%
  \expandafter\process@targetlayout}
%
% TeX's \shipout primitive is saved as \&normal@shipout, and then \shipout
% is defined to save each page to \@leftpage or \@rightpage and to print out
% every two. With the twosided layout, filler pages are added when needed.
\expandafter\let\csname &normal@shipout\endcsname\shipout
\def\shipout{%
  \if@leftpage
    \global\@leftpagefalse
    \def\next{\afterassignment\ship@leftpage\global\setbox\@leftpage=}%
    \if@twosided
      \ifodd\count\z@
        \global\setbox\@leftpage=\hbox{}%
        \make@@halfpage\@leftpage\ship@@@leftpage
        \def\next{\shipout}%
      \fi
    \fi
  \else
    \global\@leftpagetrue
    \def\next{\afterassignment\ship@rightpage\global\setbox\@rightpage=}%
    \if@twosided
      \ifodd\count\z@
      \else
        \global\setbox\@rightpage=\hbox{}%
        \make@@halfpage\@rightpage\ship@@@rightpage
        \def\next{\shipout}%
      \fi
    \fi
  \fi
  \next}
%
% The job of \ship@leftpage and \ship@rightpage is to invoke \ship@@leftpage
% or \ship@@rightpage at the right time. \shipout is followed either
% (i) by an \hbox, \vbox or \vtop, in which case \ship@leftpage is invoked
% after the opening {. \@leftpage is void, and \ship@leftpage invokes
% \ship@@leftpage after the closing }, or
% (ii) by a \box or \copy, in which case \ship@leftpage is invoked after
% the full assignment. \@leftpage is not voide, and \ship@leftpage invokes
% \ship@@leftpage immediately.
\def\ship@leftpage{%
  \ifvoid\@leftpage\aftergroup\ship@@leftpage\else\ship@@leftpage\fi}
\def\ship@rightpage{%
  \ifvoid\@rightpage\aftergroup\ship@@rightpage\else\ship@@rightpage\fi}
%
% \ship@@leftpage/\ship@@rightpage take the output box, and first make it
% into a fully-size source page (with \make@halfpage) and then this is
% centered horizontally and vertically in half of a target page (with
% \make@@halfpage). Then they are shipped individually or together.
\def\ship@@leftpage{\make@halfpage\@leftpage\ship@@@leftpage}
\def\ship@@rightpage{\make@halfpage\@rightpage\ship@@@rightpage}
\def\make@halfpage#1{%
  \dp#1=\z@
  \setbox#1=\vbox to\@sourceheight{%
    \vskip \inv@sourcemag in
    \vskip \voffset
    \hbox to\@sourcewidth{\hskip\inv@sourcemag in\hskip\hoffset\box#1\hss}%
    \vss}%
  \make@@halfpage#1}
%
% The definition of \make@@halfpage depends on the target layout.
\def\make@@halfsidebyside#1{%
  \global\setbox#1=\vbox to\@targetheight{\vss
    \hbox to.5\@targetwidth{\hss\box#1\hss}\vss}}
\def\make@@halftopbottom#1{%
  \global\setbox#1=\vbox to.5\@targetheight{\vss
    \hbox to\@targetwidth{\hss\box#1\hss}\vss}}
\def\make@@halfpage{\make@@halfsidebyside}
%
% The pages are generaly shipped in pairs:
\def\ship@twoup{%
  \begingroup
    \voffset=-\inv@targetmag in
    \hoffset=\voffset
    \global\advance\@physicalpage by 1
    \count\z@=\@physicalpage
    \csname &normal@shipout\endcsname\make@fullpage
  \endgroup}
\let\ship@@@leftpage\relax
\def\ship@@@rightpage{\ship@twoup}
%
% The definition of \make@fullpage depends on the layout:
\def\make@fullsidebyside{%
  \hbox{\box\@leftpage\pagesep@sidebyside\box\@rightpage}}
\def\make@fulltopbottom{%
  \vbox{\offinterlineskip\box\@leftpage\pagesep@topbottom\box\@rightpage}}
\def\make@fullpage{\make@fullsidebyside}
%
% A vertical or horizontal rule can be inserted. These can be redefined
% for other tricks:
\def\pagesep@sidebyside{%
  \begingroup
    \advance\pageseplength by \pagesepoffset
    \pagesepwidth=\inv@targetmag\pagesepwidth
    \kern -.5\pagesepwidth
    \vrule height \inv@targetmag\pageseplength
           depth -\inv@targetmag\pagesepoffset
           width \pagesepwidth
    \kern -.5\pagesepwidth
  \endgroup}
\def\pagesep@topbottom{%
  \begingroup
    \pagesepwidth=\inv@targetmag\pagesepwidth
    \vskip -.5\pagesepwidth
    \moveright\inv@targetmag\pagesepoffset\hbox{%
      \vrule height\pagesepwidth width\inv@targetmag\pageseplength}%
    \vskip -.5\pagesepwidth
  \endgroup}
%
% With the dvidvi layout, the pages are shipped individually:
\def\ship@dvidvi#1{%
  \begingroup
    \voffset=-\inv@targetmag in
    \hoffset=\voffset
    \csname &normal@shipout\endcsname\box#1%
  \endgroup}
%
% With the booklet or Booklet layout, the pages are saved rather than
% shipped.
\begingroup
\let\newbox\relax
\gdef\save@booklet#1{%
  \begingroup
    \globaldefs=1
    \advance\bookletpage by 1
    \expandafter\newbox\csname bookletbox\the\bookletpage\endcsname
    \expandafter\setbox\csname bookletbox\the\bookletpage\endcsname\box#1%
  \endgroup}
\endgroup
%
% The pages are then printed at the end with the following macros:
\def\make@bookletpage#1{%
  \setbox\ifodd#1\@rightpage\else\@leftpage\fi=%
    \expandafter\box\csname bookletbox\the#1\endcsname}
\def\booklet@loop{%
  \count\z@\rightpagenumber
  \make@bookletpage\leftpagenumber
  \make@bookletpage\rightpagenumber
  \ship@twoup
  \booklet@@loop}
\def\booklet@@loop{%
  \advance\rightpagenumber by 2
  \advance\leftpagenumber by -2
  \ifnum\leftpagenumber<1\else\expandafter\booklet@loop\fi}
\def\Booklet@@loop{%
  \advance\rightpagenumber by 1
  \advance\leftpagenumber by -1
  \ifnum\leftpagenumber<\rightpagenumber\else\expandafter\booklet@loop\fi}
%
% This one is easy:
\def\twoupemptypage{\shipout\hbox{}}
%
% This clears a whole target page if there is a saved left page. Note that
% this does not invoke the output routine; i.e., it is not like \clearpage
% or \supereject. See \twoupclearpage and \twoupeject below.
\def\twoup@eject{%
  \if@leftpage\else
    \global\setbox\@rightpage\hbox{}%
    \make@@halfpage\@rightpage\ship@@@rightpage
    \global\@leftpagetrue
  \fi}
%
% This is the definition of \twoup@eject with the booklet option:
\def\twoup@eject@booklet{%
  \leftpagenumber\bookletpage
  \advance\leftpagenumber by 3
  \divide\leftpagenumber by 4
  \multiply\leftpagenumber by 4
  \rightpagenumber=1
  \ifnum\leftpagenumber>\bookletpage
    \setbox\@leftpage\hbox{}%
    \make@@halfpage\@leftpage
    \loop
      \setbox\@rightpage\copy\@leftpage
      \save@booklet\@rightpage
    \ifnum\leftpagenumber>\bookletpage
    \repeat
  \fi
  \booklet@loop}
%
% This modification is needed for \LaTeX in order to get the last page
% printed out if the final page is a left page (the catcode business is
% because \enddocument is \let to \bye in amstex):
\begingroup
\expandafter\ifx\csname @latexerr\endcsname\relax
  \catcode`\>=14\else\catcode`\>=9\fi\relax
>>\gdef\twoupclearpage{\clearpage\twoup@eject}
>>\expandafter\@temptokena\expandafter{\enddocument}
>>\xdef\enddocument{\noexpand\twoupclearpage\the\@temptokena}
\endgroup
%
% For most other macro packages we could just leave be and all pages would
% always be printed because of the way the \end primitive works (except that
% TeX will go bonkers with the booklet layout). However,
% sometimes a blank filler page would be printed *with* headings. We prefer
% the filler page to be truly blank. To achieve this,  we hack the definition
% of \end. This may cause problems with some macros.
\expandafter\ifx\csname @latexerr\endcsname\relax
  \let\twoup@@@end\end
  \def\end{\twoup@eject\twoup@@@end}
  \def\twoupeject{\par\vfil\supereject\twoup@eject}
\fi
%
% This is one workaround for the page cross-references problem
\def\TwoupWrites{%
  \let\TwoupSaved@write\write
  \let\TwoupSaved@read\read
  \let\TwoupSaved@openout\openout
  \let\TwoupSaved@closeout\closeout
  \def\write{\TwoupSaved@write-1{}\immediate\TwoupSaved@write}%
  \def\read{\TwoupSaved@write-1{}\immediate\TwoupSaved@read}%
  \def\openout{\TwoupSaved@write-1{}\immediate\TwoupSaved@openout}%
  \def\closeout{\TwoupSaved@write-1{}\immediate\TwoupSaved@closeout}%
  \let\TwoupWrites\relax}
%
% Defaults:
\def\twouparticle{%
  \target{\magstepminus1}{11in}{8.5in}%
  \source{\magstep0}{8.5in}{11in}}
\def\twoupplain{%
  \target{\magstepminus2}{11in}{8.5in}%
  \source{\magstep0}{8.5in}{11in}}
\def\twouplegaltarget{%
  \target{\magstepminus1}{14in}{8.5in}%
  \source{\magstep0}{8.5in}{11in}}%
\def\twouplandscape{%
  \target{\magstepminus2}{8.5in}{11in}%
  \source{\magstep0}{11in}{8.5in}%
  \targetlayout{topbottom}}
\expandafter\ifx\csname @latexerr\endcsname\relax
  \twoupplain\else\twouparticle\fi
\pagesepwidth 0pt
\pageseplength 6.5in
\pagesepoffset 1in
%
\expandafter\catcode`\@=\TheAtCode\relax
\endinput
%% END 2up.tex/2up.sty