summaryrefslogtreecommitdiff
path: root/macros/generic/misc/CropMarks_pt.tex
blob: a30808f34139d891f541a1fadb084dc6ff604cb3 (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
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
% Self-documenting file

\ifx  \Comment \Undefined
      \long \def \Comment #1\EndComment {}
\else
      \ifx  \EndComment \Undefined
            \def \EndComment
                {\message {Error: \noexpand \EndComment encountered
                                without preceding \noexpand \Comment}}
      \else %%% both defined; let's hope they're the right definitions!
      \fi
\fi

%%% Author:  Philip Taylor (RHBNC) <P.Taylor@Rhul.Ac.Uk>
%%% Cropmarks.TeX V1.4 Copyright (C) Philip Taylor, MCMLXXXXII

\Comment % The Licence

 Unlimited copying and redistribution of this file
 is permitted so long as the file is not modified
 in any way.

 Modifications may be made for private purposes (though
 this is discouraged, as it could result in documents
 typesetting differently on different systems) but if
 such modifications are re-distributed, the modified
 file must not be capable of being confused with the
 original.  In particular, this means

(a) the filename (the portion before the extension, if any)
    must not match either of the sequences :

        CROPMARKS
        CROP-MARKS

   regardless of case, and

(b) the file must contain conditions identical to these,
 except that the modifier/distributor may, if he or she
 wishes, augment the list of proscribed filenames.

\EndComment

%%% Usage:

%%% \input cropmarks
%%% \topcropmark = <dimen> [plus <dimen>] [minus <dimen>]
%%% \bottomcropmark = <dimen> [plus <dimen>] [minus <dimen>]
%%% \leftcropmark = <dimen> [plus <dimen>] [minus <dimen>]
%%% \rightcropmark = <dimen> [plus <dimen>] [minus <dimen>]
%%% \lrcropmarkstrue ;;; iff you want alternating left and right cropmarks only
%%% \rvcropmarkstrue ;;; iff you want recto and verso specified independently
%%%                     (in which case the first four variables are two-valued
%%%                      as \recto<var> and \verso<var>).

%%% Square brackets indicate optional items, and the <dimen>s are
%%% respectively (and all measured w.r.t. the origin, which is the
%%% top left corner of the notional, rather than physical page; the
%%% exact origin will need to be determined by inspection)

%%%     The distance to the centre of the cross;
%%%     The distance which the cross extends beyond the page limits;
%%%     The distance which the cross extends within the page limits.

%%% Any or all can be zero <unit>s.  For conventional (exo-) cropmarks, the
%%% `plus' component indicates the length of the mark, and the `minus' component
%%% should be omitted or zero.  For inverted (endo-) cropmarks, the `plus'
%%% component should be omitted or zero, and the `minus' component indicates the
%%% length of the mark.  If `plus' or `minus' components are negative, this
%%% has the effect of a `white cropmark' extending in the reverse direction
%%% for the specified distance; this may be used to achieve non-touching marks.
%%% The first and only mandatory component may be also negative, to cope with
%%% pathological origins.

%
%%% A test which will allow us to be read regardless of the \catcode of `@'
%

\newif \ifatletter
\ifcat @A\atlettertrue \else \catcode `\@ = 11 \atletterfalse \fi

\ifx \c@tcodeminus \undefined \else \message {Warning: previous
meaning of \string \c@tcodeminus \space lost} \fi \edef
\c@tcodeminus {\the \catcode `\-} \catcode `\- = 12

%
\message {CROPMARKS.TEX V1.4 Copyright (C) 05-Mar-1992 13:43:28
Philip Taylor}
%

%
%%% Miscellaneous variables
%
\newif    \iflrcropmarks            \lrcropmarksfalse
\newif    \ifrvcropmarks                \rvcropmarksfalse
\newdimen \cropmarkwidth            \cropmarkwidth = 0.4 pt
\newdimen \t@pshift
\newdimen \b@ttomshift
\newdimen \l@ftshift
\newskip  \topcropmark
\newskip  \leftcropmark
\newskip  \rightcropmark
\newskip  \bottomcropmark
\newskip  \rectotopcropmark
\newskip  \rectoleftcropmark
\newskip  \rectorightcropmark
\newskip  \rectobottomcropmark
\newskip  \versotopcropmark
\newskip  \versoleftcropmark
\newskip  \versorightcropmark
\newskip  \versobottomcropmark
\newskip  \m@rkskip
\newskip  \m@rkplus
\newskip  \m@rkminus
\newbox   \p@gebox
\newbox   \cr@pmarkbox
\newbox   \topcr@pmarkbox
\newbox   \bottomcr@pmarkbox
%
%%% Extraordinary arcanery, to parse <skip>s into <dimen>s; any better ways ?
%
\begingroup
\catcode `\P = 12 \catcode `\L = 12 \catcode `\U = 12 \catcode `\S =
12 \catcode `\M = 12 \catcode `\I = 12 \catcode `\N = 12 \catcode
`\T = 12 \globaldefs = 1 \lowercase
{%
\def \p@rseskip #1%
    {\expandafter \p@rs@skip \the #1 PLUS 0.0PT MINUS 0.0PT \@ndparse #1 }
\def \p@rs@skip #1 PLUS #2 MINUS #3\@ndparse #4
    {%
     \m@rkskip  = #1%
     \m@rkplus  = #2%
     \m@rkminus = #3%
     \ifdim \m@rkminus = 0.0 pt
        \expandafter \p@rs@sk@p \the \m@rkskip MINUS 0.0PT \@ndparse
     \fi
    }%
\def \p@rs@sk@p #1MINUS #2\@ndparse {\m@rkskip = #1 \m@rkminus = #2 }
}
\endgroup
%
%%% Take control of \shipout, to force it to add cropmarks
%
\let \ship@ut = \shipout
\def \shipout {\futurelet \b@x \whichb@x}
\def \whichb@x
    {%
     \ifx   \b@x \vbox
        \def \n@xt {\setbox \p@gebox = }%
            \afterassignment \Shipout
     \else  \ifx    \b@x \hbox
            \def \n@xt {\setbox \p@gebox = }%
                \afterassignment \Shipout
        \else   \ifx    \b@x \box
                \def \n@xt {\setbox \p@gebox = }%
                \afterassignment \Ship@ut
            \else   \ifx    \b@x \copy
                    \def \n@xt {\setbox \p@gebox = }%
                    \afterassignment \Ship@ut
                \else
                    \def \n@xt {\ship@ut}%
                    \message {Sorry, can't understand
                            what follows \shipout}%
                \fi
            \fi
        \fi
     \fi
     \n@xt
    }
\def \Shipout {\aftergroup \Ship@ut}
\def \Ship@ut
    {%
         \ifrvcropmarks
                \ifodd \pageno
                        \topcropmark = \rectotopcropmark
                        \bottomcropmark = \rectobottomcropmark
                        \leftcropmark = \rectoleftcropmark
                        \rightcropmark = \rectorightcropmark
                \else
                        \topcropmark = \versotopcropmark
                        \bottomcropmark = \versobottomcropmark
                        \leftcropmark = \versoleftcropmark
                        \rightcropmark = \versorightcropmark
                \fi
         \fi
     \setbox \topcr@pmarkbox =
     \hbox   \bgroup
         \p@rseskip \leftcropmark
         \iflrcropmarks
            \ifodd \count 0
            \let \next = \phantom
            \else
            \let \next = \relax
            \fi
         \else
            \let \next = \relax
         \fi
         \next {\ifdim  \m@rkminus < 0 pt
                                \begingroup
                                \advance \m@rkplus by \m@rkminus
                    \vrule height \cropmarkwidth
                                       depth 0 pt width \m@rkplus
                                \kern -\m@rkminus
                                \endgroup
                        \else
                    \vrule height \cropmarkwidth
                                        depth 0 pt width \m@rkplus
                        \fi
                    \begingroup
                    \p@rseskip \topcropmark
                    \vrule  height \m@rkplus
                        depth \m@rkminus
                        width \cropmarkwidth
                    \endgroup
                        \ifdim  \m@rkplus < 0 pt
                                \begingroup
                                \advance \m@rkminus by \m@rkplus
                    \rlap {\kern -\m@rkplus
                                       \vrule height \cropmarkwidth
                          depth 0 pt width \m@rkminus}%
                                \endgroup
                        \else
                    \rlap {\vrule height \cropmarkwidth
                          depth 0 pt width \m@rkminus}%
                        \fi
               }%
         \hskip \m@rkskip
         \p@rseskip \rightcropmark
         \hskip \m@rkskip
         \iflrcropmarks
            \ifodd \count 0
            \let \next = \relax
            \else
            \let \next = \phantom
            \fi
         \else
            \let \next = \relax
         \fi
         \next {\ifdim  \m@rkplus < 0 pt
                                \begingroup
                                \advance \m@rkminus by \m@rkplus
                    \llap {\vrule   height \cropmarkwidth
                    depth 0 pt width \m@rkminus
                                        \kern -\m@rkplus
                                      }%
                                \endgroup
                        \else
                    \llap {\vrule   height \cropmarkwidth
                    depth 0 pt width \m@rkminus
                                      }%
                        \fi
                                \begingroup
                \p@rseskip \topcropmark
                \vrule  height \m@rkplus
                        depth \m@rkminus
                    width \cropmarkwidth
                \endgroup
                        \ifdim  \m@rkminus < 0 pt
                                \begingroup
                                \advance \m@rkplus by \m@rkminus
                                \kern -\m@rkminus
                    \vrule height \cropmarkwidth
                                depth 0 pt width \m@rkplus
                                \endgroup
                        \else
                    \vrule height \cropmarkwidth
                                       depth 0 pt width \m@rkplus
                        \fi
               }%%%%%%%% end of parameter to \next
         \egroup%%%%%%%% end of \bgroup ... \egroup to \setbox ...
     \ht \topcr@pmarkbox = 0 pt
     \dp \topcr@pmarkbox = 0 pt
     \wd \topcr@pmarkbox = \wd \p@gebox
     \setbox \bottomcr@pmarkbox =
     \hbox   \bgroup
         \p@rseskip \leftcropmark
         \iflrcropmarks
            \ifodd \count 0
            \let \next = \phantom
            \else
            \let \next = \relax
            \fi
         \else
            \let \next = \relax
         \fi
         \next {\ifdim  \m@rkminus < 0 pt
                                \begingroup
                                \advance \m@rkplus by \m@rkminus
                    \vrule height \cropmarkwidth
                                       depth 0 pt width \m@rkplus
                                \kern -\m@rkminus
                                \endgroup
                        \else
                    \vrule height \cropmarkwidth
                                        depth 0 pt width \m@rkplus
                        \fi
                    \begingroup
                    \p@rseskip \bottomcropmark
                    \vrule  height \m@rkminus
                        depth \m@rkplus
                        width \cropmarkwidth
                    \endgroup
                        \ifdim  \m@rkplus < 0 pt
                                \begingroup
                                \advance \m@rkminus by \m@rkplus
                    \rlap {\kern -\m@rkplus
                                       \vrule height \cropmarkwidth
                          depth 0 pt width \m@rkminus}%
                                \endgroup
                        \else
                    \rlap {\vrule height \cropmarkwidth
                          depth 0 pt width \m@rkminus}%
                        \fi
               }%
         \hskip \m@rkskip
         \p@rseskip \rightcropmark
         \hskip \m@rkskip
         \iflrcropmarks
            \ifodd \count 0
            \let \next = \relax
            \else
            \let \next = \phantom
            \fi
         \else
            \let \next = \relax
         \fi
         \next {\ifdim  \m@rkplus < 0 pt
                                \begingroup
                                \advance \m@rkminus by \m@rkplus
                    \llap {\vrule   height \cropmarkwidth
                    depth 0 pt width \m@rkminus
                                        \kern -\m@rkplus
                                      }%
                                \endgroup
                        \else
                    \llap {\vrule   height \cropmarkwidth
                    depth 0 pt width \m@rkminus
                                      }%
                        \fi
                                \begingroup
                \p@rseskip \bottomcropmark
                \vrule  height \m@rkminus
                        depth \m@rkplus
                    width \cropmarkwidth
                \endgroup
                        \ifdim  \m@rkminus < 0 pt
                                \begingroup
                                \advance \m@rkplus by \m@rkminus
                                \kern -\m@rkminus
                    \vrule height \cropmarkwidth
                                depth 0 pt width \m@rkplus
                                \endgroup
                        \else
                    \vrule height \cropmarkwidth
                                       depth 0 pt width \m@rkplus
                        \fi
               }%%%%%%%% end of parameter to \next
         \egroup%%%%%%%% end of \bgroup ... \egroup to \setbox ...
     \ht \bottomcr@pmarkbox = 0 pt
     \dp \bottomcr@pmarkbox = 0 pt
     \wd \bottomcr@pmarkbox = \wd \p@gebox
     \setbox \cr@pmarkbox = \vbox
        \bgroup
        \offinterlineskip
        \p@rseskip \leftcropmark    \l@ftshift = \m@rkskip
        \p@rseskip \topcropmark     \t@pshift = \m@rkskip
        \p@rseskip \bottomcropmark  \b@ttomshift = \m@rkskip
        \advance \l@ftshift by \m@rkplus
        \advance \l@ftshift by \cropmarkwidth
        \vskip -\t@pshift
            \moveleft \l@ftshift \box \topcr@pmarkbox
        \vskip +\t@pshift
        \vskip +\b@ttomshift
            \moveleft \l@ftshift \box \bottomcr@pmarkbox
        \vskip -\b@ttomshift
        \egroup
     \setbox \p@gebox = \vbox
        {\offinterlineskip
         \box \cr@pmarkbox
         \box \p@gebox}%
     \ship@ut \box \p@gebox
    }
%
%%% Restore \catcode of `-' & `@'
%

\catcode `\- = \c@tcodeminus
\let \c@tcodeminus = \undefined
\ifatletter \else \catcode `\@ = 12 \fi

%%% All done