summaryrefslogtreecommitdiff
path: root/macros/latex/contrib/oberdiek/setouterhbox.dtx
blob: 001cd278d3d65db3aed3d24fbfa908ca381dec19 (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
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
% \iffalse meta-comment
%
% File: setouterhbox.dtx
% Version: 2016/05/16 v1.8
% Info: Set hbox in outer horizontal mode
%
% Copyright (C)
%    2005-2007 Heiko Oberdiek
%    2016-2019 Oberdiek Package Support Group
%    https://github.com/ho-tex/oberdiek/issues
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3c of this license or (at your option) any later
% version. This version of this license is in
%    https://www.latex-project.org/lppl/lppl-1-3c.txt
% and the latest version of this license is in
%    https://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of
% LaTeX version 2005/12/01 or later.
%
% This work has the LPPL maintenance status "maintained".
%
% The Current Maintainers of this work are
% Heiko Oberdiek and the Oberdiek Package Support Group
% https://github.com/ho-tex/oberdiek/issues
%
% The Base Interpreter refers to any `TeX-Format',
% because some files are installed in TDS:tex/generic//.
%
% This work consists of the main source file setouterhbox.dtx
% and the derived files
%    setouterhbox.sty, setouterhbox.pdf, setouterhbox.ins, setouterhbox.drv,
%    setouterhbox-example.tex, setouterhbox-test1.tex,
%    setouterhbox-test2.tex.
%
% Distribution:
%    CTAN:macros/latex/contrib/oberdiek/setouterhbox.dtx
%    CTAN:macros/latex/contrib/oberdiek/setouterhbox.pdf
%
% Unpacking:
%    (a) If setouterhbox.ins is present:
%           tex setouterhbox.ins
%    (b) Without setouterhbox.ins:
%           tex setouterhbox.dtx
%    (c) If you insist on using LaTeX
%           latex \let\install=y\input{setouterhbox.dtx}
%        (quote the arguments according to the demands of your shell)
%
% Documentation:
%    (a) If setouterhbox.drv is present:
%           latex setouterhbox.drv
%    (b) Without setouterhbox.drv:
%           latex setouterhbox.dtx; ...
%    The class ltxdoc loads the configuration file ltxdoc.cfg
%    if available. Here you can specify further options, e.g.
%    use A4 as paper format:
%       \PassOptionsToClass{a4paper}{article}
%
%    Programm calls to get the documentation (example):
%       pdflatex setouterhbox.dtx
%       makeindex -s gind.ist setouterhbox.idx
%       pdflatex setouterhbox.dtx
%       makeindex -s gind.ist setouterhbox.idx
%       pdflatex setouterhbox.dtx
%
% Installation:
%    TDS:tex/generic/oberdiek/setouterhbox.sty
%    TDS:doc/latex/oberdiek/setouterhbox.pdf
%    TDS:doc/latex/oberdiek/setouterhbox-example.tex
%    TDS:source/latex/oberdiek/setouterhbox.dtx
%
%<*ignore>
\begingroup
  \catcode123=1 %
  \catcode125=2 %
  \def\x{LaTeX2e}%
\expandafter\endgroup
\ifcase 0\ifx\install y1\fi\expandafter
         \ifx\csname processbatchFile\endcsname\relax\else1\fi
         \ifx\fmtname\x\else 1\fi\relax
\else\csname fi\endcsname
%</ignore>
%<*install>
\input docstrip.tex
\Msg{************************************************************************}
\Msg{* Installation}
\Msg{* Package: setouterhbox 2016/05/16 v1.8 Set hbox in outer horizontal mode (HO)}
\Msg{************************************************************************}

\keepsilent
\askforoverwritefalse

\let\MetaPrefix\relax
\preamble

This is a generated file.

Project: setouterhbox
Version: 2016/05/16 v1.8

Copyright (C)
   2005-2007 Heiko Oberdiek
   2016-2019 Oberdiek Package Support Group

This work may be distributed and/or modified under the
conditions of the LaTeX Project Public License, either
version 1.3c of this license or (at your option) any later
version. This version of this license is in
   https://www.latex-project.org/lppl/lppl-1-3c.txt
and the latest version of this license is in
   https://www.latex-project.org/lppl.txt
and version 1.3 or later is part of all distributions of
LaTeX version 2005/12/01 or later.

This work has the LPPL maintenance status "maintained".

The Current Maintainers of this work are
Heiko Oberdiek and the Oberdiek Package Support Group
https://github.com/ho-tex/oberdiek/issues


The Base Interpreter refers to any `TeX-Format',
because some files are installed in TDS:tex/generic//.

This work consists of the main source file setouterhbox.dtx
and the derived files
   setouterhbox.sty, setouterhbox.pdf, setouterhbox.ins, setouterhbox.drv,
   setouterhbox-example.tex, setouterhbox-test1.tex,
   setouterhbox-test2.tex.

\endpreamble
\let\MetaPrefix\DoubleperCent

\generate{%
  \file{setouterhbox.ins}{\from{setouterhbox.dtx}{install}}%
  \file{setouterhbox.drv}{\from{setouterhbox.dtx}{driver}}%
  \usedir{tex/generic/oberdiek}%
  \file{setouterhbox.sty}{\from{setouterhbox.dtx}{package}}%
  \usedir{doc/latex/oberdiek}%
  \file{setouterhbox-example.tex}{\from{setouterhbox.dtx}{example}}%
%  \usedir{doc/latex/oberdiek/test}%
%  \file{setouterhbox-test1.tex}{\from{setouterhbox.dtx}{test1}}%
%  \file{setouterhbox-test2.tex}{\from{setouterhbox.dtx}{test2}}%
}

\catcode32=13\relax% active space
\let =\space%
\Msg{************************************************************************}
\Msg{*}
\Msg{* To finish the installation you have to move the following}
\Msg{* file into a directory searched by TeX:}
\Msg{*}
\Msg{*     setouterhbox.sty}
\Msg{*}
\Msg{* To produce the documentation run the file `setouterhbox.drv'}
\Msg{* through LaTeX.}
\Msg{*}
\Msg{* Happy TeXing!}
\Msg{*}
\Msg{************************************************************************}

\endbatchfile
%</install>
%<*ignore>
\fi
%</ignore>
%<*driver>
\NeedsTeXFormat{LaTeX2e}
\ProvidesFile{setouterhbox.drv}%
  [2016/05/16 v1.8 Set hbox in outer horizontal mode (HO)]%
\documentclass{ltxdoc}
\usepackage{holtxdoc}[2011/11/22]
\begin{document}
  \DocInput{setouterhbox.dtx}%
\end{document}
%</driver>
% \fi
%
%
%
% \GetFileInfo{setouterhbox.drv}
%
% \title{The \xpackage{setouterhbox} package}
% \date{2016/05/16 v1.8}
% \author{Heiko Oberdiek\thanks
% {Please report any issues at \url{https://github.com/ho-tex/oberdiek/issues}}}
%
% \maketitle
%
% \begin{abstract}
% If math stuff is set in an \cs{hbox}, then TeX
% performs some optimization and omits the implicite
% penalties \cs{binoppenalty} and \cs{relpenalty}.
% This packages tries to put stuff into an \cs{hbox}
% without getting lost of those penalties.
% \end{abstract}
%
% \tableofcontents
%
% \section{Documentation}
%
% \subsection{Introduction}
%
% There is a situation in \xpackage{hyperref}'s driver for dvips
% where the user wants to have links that can be broken across
% lines. However dvips doesn't support the feature. With option
% \xoption{breaklinks} \xpackage{hyperref} sets the links as
% usual, put them in a box and write the link data with
% box dimensions into the appropriate \cs{special}s.
% Then, however, it does not set the complete unbreakable
% box, but it unwrappes the material inside to allow line
% breaks. Of course line breaking and glue setting will falsify
% the link dimensions, but line breaking was more important
% for the user.
%
% \subsection{Acknowledgement}
%
% Jonathan Fine, Donald Arsenau and me discussed the problem
% in the newsgroup \xnewsgroup{comp.text.tex} where Damian
% Menscher has started the thread, see \cite{newsstart}.
%
% The discussion was productive and generated many ideas
% and code examples. In order to have a more permanent
% result I wrote this package and tried to implement
% most of the ideas, a kind of summary of the discussion.
% Thus I want and have to thank Jonathan Fine and Donald Arsenau
% very much.
%
% Two weeks later David Kastrup (posting in
% \xnewsgroup{comp.text.tex}, \cite{kastrup})
% remembered an old article of Michael Downes (\cite{downes})
% in TUGboat, where Michael Downes already presented the
% method we discuss here. Nowadays we have \eTeX\ that extends
% the tool set of a \TeX\ macro programmer. Especially useful
% \eTeX\ was in this package for detecting and dealing with
% errorneous situations.
%
% However also nowadays a perfect solution for the problem
% is still missing at macro level. Probably someone has
% to go deep in the internals of the \TeX\ compiler to
% implement a switch that let penalties stay where otherwise
% \TeX\ would remove them for optimization reasons.
%
% \subsection{Usage}
%
% \paragraph{Package loading.}
% \LaTeX: as usually:
% \begin{quote}
%   |\usepackage{setouterhbox}|
% \end{quote}
% The package can also be included directly, thus \plainTeX\ users
% write:
% \begin{quote}
%   |\input setouterhbox.sty|
% \end{quote}
%
% \paragraph{Register allocation.}
% The material will be put into a box, thus we need to know these
% box number. If you need to allocate a new box register:
% \begin{description}
%  \item[\LaTeX:] |\newsavebox{\|\meta{name}|}|
%  \item[\plainTeX:] |\newbox\|\meta{name}
% \end{description}
% Then |\|\meta{name} is a command that held the box number.
%
% \paragraph{Box wrapping.}
% \LaTeX\ users put the material in the box with an environment
% similar to \texttt{lrbox}. The environment \texttt{setouterhbox}
% uses the same syntax and offers the same features, such
% as verbatim stuff inside:
% \begin{quote}
%  |\begin{setouterhbox}{|\meta{box number}|}|\dots
%  |\end{setouterhbox}|
% \end{quote}
% Users with \plainTeX\ do not have environments, they use instead:
% \begin{quote}
%   |\setouterhbox{|\meta{box number}|}|\dots|\endsetouterhbox|
% \end{quote}
% In both cases the material is put into an \cs{hbox} and assigned
% to the given box, denoted by \meta{box number}. Note the
% assignment is local, the same way \texttt{lrbox} behaves.
%
% \paragraph{Unwrapping.}
% The box material is ready for unwrapping:
% \begin{quote}
%   |\unhbox|\meta{box number}
% \end{quote}
%
% \subsection{Option \xoption{hyperref}}
%
% Package url uses math mode for typesetting urls.
% Break points are inserted by \cs{binoppenalty} and
% \cs{relpenalty}. Unhappily these break points are
% removed, if \xpackage{hyperref}
% is used with option {breaklinks}
% and drivers that depend on \xoption{pdfmark}:
% \xoption{dvips}, \xoption{vtexpdfmark}, \xoption{textures},
% and \xoption{dvipsone}.
% Thus the option \xoption{hyperref} enables the method
% of this package to avoid the removal of \cs{relpenalty}
% and \cs{binoppenalty}. Thus you get more break points.
% However, the link areas are still wrong for these
% drivers, because they are not supporting broken
% links.
%
% Note, you need version 2006/08/16 v6.75c of package \xpackage{hyperref},
% because starting with this version the necessary hook is provided
% that package \xpackage{setouterhbox} uses.
% \begin{quote}
%   |\usepackage[|\dots|]{hyperref}[2006/08/16]|\\
%   |\usepackage[hyperref]{setouterhbox}|
% \end{quote}
% Package order does not matter.
%
% \subsection{Example}
%
%    \begin{macrocode}
%<*example>
\documentclass[a5paper]{article}
\usepackage{url}[2005/06/27]
\usepackage{setouterhbox}

\newsavebox{\testbox}

\setlength{\parindent}{0pt}
\setlength{\parskip}{2em}

\begin{document}
\raggedright

\url{http://this.is.a.very.long.host.name/followed/%
by/a/very_long_long_long_path.html}%

\sbox\testbox{%
  \url{http://this.is.a.very.long.host.name/followed/%
  by/a/very_long_long_long_path.html}%
}%
\unhbox\testbox

\begin{setouterhbox}{\testbox}%
  \url{http://this.is.a.very.long.host.name/followed/%
  by/a/very_long_long_long_path.html}%
\end{setouterhbox}
\unhbox\testbox

\end{document}
%</example>
%    \end{macrocode}
%
% \StopEventually{
% }
%
% \section{Implementation}
%
% Internal macros are prefixed by \cs{setouterhbox}, |@| is
% not used inside names, thus we do not need to care of its
% catcode if we are not using it as \LaTeX\ package.
%
% \subsection{Package start stuff}
%
%    \begin{macrocode}
%<*package>
%    \end{macrocode}
%
% Prevent reloading more than one, necessary for \plainTeX:
%    Reload check, especially if the package is not used with \LaTeX.
%    \begin{macrocode}
\begingroup\catcode61\catcode48\catcode32=10\relax%
  \catcode13=5 % ^^M
  \endlinechar=13 %
  \catcode35=6 % #
  \catcode39=12 % '
  \catcode44=12 % ,
  \catcode45=12 % -
  \catcode46=12 % .
  \catcode58=12 % :
  \catcode64=11 % @
  \catcode123=1 % {
  \catcode125=2 % }
  \expandafter\let\expandafter\x\csname ver@setouterhbox.sty\endcsname
  \ifx\x\relax % plain-TeX, first loading
  \else
    \def\empty{}%
    \ifx\x\empty % LaTeX, first loading,
      % variable is initialized, but \ProvidesPackage not yet seen
    \else
      \expandafter\ifx\csname PackageInfo\endcsname\relax
        \def\x#1#2{%
          \immediate\write-1{Package #1 Info: #2.}%
        }%
      \else
        \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
      \fi
      \x{setouterhbox}{The package is already loaded}%
      \aftergroup\endinput
    \fi
  \fi
\endgroup%
%    \end{macrocode}
%    Package identification:
%    \begin{macrocode}
\begingroup\catcode61\catcode48\catcode32=10\relax%
  \catcode13=5 % ^^M
  \endlinechar=13 %
  \catcode35=6 % #
  \catcode39=12 % '
  \catcode40=12 % (
  \catcode41=12 % )
  \catcode44=12 % ,
  \catcode45=12 % -
  \catcode46=12 % .
  \catcode47=12 % /
  \catcode58=12 % :
  \catcode64=11 % @
  \catcode91=12 % [
  \catcode93=12 % ]
  \catcode123=1 % {
  \catcode125=2 % }
  \expandafter\ifx\csname ProvidesPackage\endcsname\relax
    \def\x#1#2#3[#4]{\endgroup
      \immediate\write-1{Package: #3 #4}%
      \xdef#1{#4}%
    }%
  \else
    \def\x#1#2[#3]{\endgroup
      #2[{#3}]%
      \ifx#1\@undefined
        \xdef#1{#3}%
      \fi
      \ifx#1\relax
        \xdef#1{#3}%
      \fi
    }%
  \fi
\expandafter\x\csname ver@setouterhbox.sty\endcsname
\ProvidesPackage{setouterhbox}%
  [2016/05/16 v1.8 Set hbox in outer horizontal mode (HO)]%
%    \end{macrocode}
%
%    \begin{macrocode}
\begingroup\catcode61\catcode48\catcode32=10\relax%
  \catcode13=5 % ^^M
  \endlinechar=13 %
  \catcode123=1 % {
  \catcode125=2 % }
  \catcode64=11 % @
  \def\x{\endgroup
    \expandafter\edef\csname setouterhboxAtEnd\endcsname{%
      \endlinechar=\the\endlinechar\relax
      \catcode13=\the\catcode13\relax
      \catcode32=\the\catcode32\relax
      \catcode35=\the\catcode35\relax
      \catcode61=\the\catcode61\relax
      \catcode64=\the\catcode64\relax
      \catcode123=\the\catcode123\relax
      \catcode125=\the\catcode125\relax
    }%
  }%
\x\catcode61\catcode48\catcode32=10\relax%
\catcode13=5 % ^^M
\endlinechar=13 %
\catcode35=6 % #
\catcode64=11 % @
\catcode123=1 % {
\catcode125=2 % }
\def\TMP@EnsureCode#1#2{%
  \edef\setouterhboxAtEnd{%
    \setouterhboxAtEnd
    \catcode#1=\the\catcode#1\relax
  }%
  \catcode#1=#2\relax
}
\TMP@EnsureCode{40}{12}% (
\TMP@EnsureCode{41}{12}% )
\TMP@EnsureCode{44}{12}% ,
\TMP@EnsureCode{45}{12}% -
\TMP@EnsureCode{46}{12}% .
\TMP@EnsureCode{47}{12}% /
\TMP@EnsureCode{58}{12}% :
\TMP@EnsureCode{60}{12}% <
\TMP@EnsureCode{62}{12}% >
\TMP@EnsureCode{91}{12}% [
\TMP@EnsureCode{93}{12}% ]
\TMP@EnsureCode{96}{12}% `
\edef\setouterhboxAtEnd{\setouterhboxAtEnd\noexpand\endinput}
%    \end{macrocode}
%
% \subsection{Interface macros}
%
%    \begin{macro}{\setouterhboxBox}
% The method requires a global box assignment. To be on the
% safe side, a new box register is allocated for this
% global box assignment.
%    \begin{macrocode}
\newbox\setouterhboxBox
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\setouterhboxFailure}
% Error message for both \plainTeX\ and \LaTeX
%    \begin{macrocode}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname RequirePackage\endcsname\relax
  \input infwarerr.sty\relax
\else
  \RequirePackage{infwarerr}[2016/05/16]%
\fi
\edef\setouterhboxFailure#1#2{%
  \expandafter\noexpand\csname @PackageError\endcsname
      {setouterhbox}{#1}{#2}%
}
%    \end{macrocode}
%    \end{macro}
%
% \subsection{Main part}
%
% eTeX provides much better means for checking
% error conditions. Thus lines marked by "E" are executed
% if eTeX is available, otherwise the lines marked by "T" are
% used.
%    \begin{macrocode}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname lastnodetype\endcsname\relax
  \catcode`T=9 % ignore
  \catcode`E=14 % comment
\else
  \catcode`T=14 % comment
  \catcode`E=9 % ignore
\fi
%    \end{macrocode}
%
%    \begin{macro}{\setouterhboxRemove}
% Remove all kern, glue, and penalty nodes;
% poor man's version, if \eTeX\ is not available
%    \begin{macrocode}
\def\setouterhboxRemove{%
E \ifnum\lastnodetype<11 %
E   \else
E   \ifnum\lastnodetype>13 %
E   \else
      \unskip\unkern\unpenalty
E     \expandafter\expandafter\expandafter\setouterhboxRemove
E   \fi
E \fi
}%
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\setouterhbox}
% Passing the box contents by macro parameter would prevent
% catcode changes in the box contents like by \cs{verb}.
% Also \cs{bgroup} and \cs{egroup} does not work, because stuff
% has to be added at the begin and end of the box, thus
% the syntax
% |\setouterhbox{|\meta{box number}|}|\dots|\endsetouterhbox|
% is used. Also we automatically get an environment \texttt{setouterhbox}
% if \LaTeX\ is used.
%    \begin{macrocode}
\def\setouterhbox#1{%
  \begingroup
    \def\setouterhboxNum{#1}%
    \setbox0\vbox\bgroup
T     \kern.123pt\relax % marker
T     \kern0pt\relax % removed by \setouterhboxRemove
      \begingroup
        \everypar{}%
        \noindent
}
%    \end{macrocode}
%    \end{macro}
%    \begin{macro}{\endsetouterhbox}
% Most of the work is done in the end part, thus the heart of
% the method follows:
%    \begin{macrocode}
\def\endsetouterhbox{%
      \endgroup
%    \end{macrocode}
% Omit the first pass to get the penalties
% of the second pass.
%    \begin{macrocode}
      \pretolerance-1 %
%    \end{macrocode}
%  We don't want a third pass with \cs{emergencystretch}.
%    \begin{macrocode}
      \tolerance10000 %
      \hsize\maxdimen
%    \end{macrocode}
% Line is not underfull:
%    \begin{macrocode}
      \parfillskip 0pt plus 1filll\relax
      \leftskip0pt\relax
%    \end{macrocode}
% Suppress underful \cs{hbox} warnings,
% is explicit line breaks are used.
%    \begin{macrocode}
      \rightskip0pt plus 1fil\relax
      \everypar{}%
%    \end{macrocode}
% Ensure that there is a paragraph and
% prevents \cs{endgraph} from eating terminal glue:
%    \begin{macrocode}
      \kern0pt%
      \endgraf
      \setouterhboxRemove
E     \ifnum\lastnodetype=1 %
E       \global\setbox\setouterhboxBox\lastbox
E       \loop
E         \setouterhboxRemove
E       \ifnum\lastnodetype=1 %
E         \setbox0=\lastbox
E         \global\setbox\setouterhboxBox=\hbox{%
E           \unhbox0 %
%    \end{macrocode}
% Remove \cs{rightskip}, a penalty with -10000 is part of the previous line.
%    \begin{macrocode}
E           \unskip
E           \unhbox\setouterhboxBox
E         }%
E       \repeat
E     \else
E       \setouterhboxFailure{%
E         Something is wrong%
E       }{%
E         Could not find expected line.%
E         \MessageBreak
E         (\string\lastnodetype: \number\lastnodetype, expected: 1)%
E       }%
E     \fi
E     \setouterhboxRemove
T     \global\setbox\setouterhboxBox\lastbox
T     \loop
T       \setouterhboxRemove
T       \setbox0=\lastbox
T     \ifcase\ifvoid0 1\else0\fi
T       \global\setbox\setouterhboxBox=\hbox{%
T         \unhbox0 %
%    \end{macrocode}
% Remove \cs{rightskip}, a penalty with -10000 is part of the previous line.
%    \begin{macrocode}
T         \unskip
T         \unhbox\setouterhboxBox
T       }%
T     \repeat
T     \ifdim.123pt=\lastkern
T     \else
T       \setouterhboxFailure{%
T         Something is wrong%
T       }{%
T         Unexpected stuff was detected before the line.%
T       }%
T     \fi
T   \egroup
T   \ifcase \ifnum\wd0=0 \else 1\fi
T           \ifdim\ht0=.123pt \else 1\fi
T           \ifnum\dp0=0 \else 1\fi
T           0 %
E     \ifnum\lastnodetype=-1 %
%    \end{macrocode}
% There was just one line that we have caught.
%    \begin{macrocode}
      \else
        \setouterhboxFailure{%
            Something is wrong%
        }{%
            After fetching the line there is more unexpected stuff.%
E           \MessageBreak
E           (\string\lastnodetype: \number\lastnodetype, expected: -1)%
        }%
      \fi
E   \egroup
  \expandafter\endgroup
  \expandafter\setouterhboxFinish\expandafter{%
    \number\setouterhboxNum
  }%
}
%    \end{macrocode}
%    \end{macro}
%
% \subsection{Environment support}
%
% Check \cs{@currenvir} for the case that \cs{setouterhbox}
% was called as environment. Then the box assignment
% must be put after the \cs{endgroup} of |\end{|\dots|}|.
%    \begin{macrocode}
\def\setouterhboxCurr{setouterhbox}
\def\setouterhboxLast#1{%
  \setbox#1\hbox{%
    \unhbox\setouterhboxBox
    \unskip % remove \rightskip glue
    \unskip % remove \parfillskip glue
    \unpenalty % remove paragraph ending \penalty 10000
    \unkern % remove explicit kern inserted above
  }%
}
%    \end{macrocode}
%    \begin{macro}{\setouterhboxFinish}
% |#1| is an explicit number.
%    \begin{macrocode}
\def\setouterhboxFinish#1{%
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname @currenvir\endcsname\setouterhboxCurr
    \aftergroup\setouterhboxLast
    \aftergroup{%
    \setouterhboxAfter #1\NIL
    \aftergroup}%
  \else
    \setouterhboxLast{#1}%
  \fi
}
%    \end{macrocode}
%    \end{macro}
%    \begin{macro}{\setouterhboxAfter}
% |#1| is an explicit number.
%    \begin{macrocode}
\def\setouterhboxAfter#1#2\NIL{%
  \aftergroup#1%
  \ifx\\#2\\%
  \else
    \setouterhboxReturnAfterFi{%
      \setouterhboxAfter#2\NIL
    }%
  \fi
}
%    \end{macrocode}
%    \end{macro}
%    \begin{macro}{\setouterhboxReturnAfterFi}
% A utility macro to get tail recursion.
%    \begin{macrocode}
\long\def\setouterhboxReturnAfterFi#1\fi{\fi#1}
%    \end{macrocode}
%    \end{macro}
% Restore catcodes we have need to distinguish between
% the implementation with and without \eTeX.
%    \begin{macrocode}
\catcode69=11\relax % E
\catcode84=11\relax % T
%    \end{macrocode}
%
% \subsection{Option \xoption{hyperref}}
%    \begin{macrocode}
\begingroup
  \def\x{LaTeX2e}%
\expandafter\endgroup
\ifx\x\fmtname
\else
  \expandafter\setouterhboxAtEnd
\fi%
%    \end{macrocode}
%    \begin{macro}{\Hy@setouterhbox}
% \cs{Hy@setouterhbox} is the internal hook that \xpackage{hyperref}
% uses since 2006/02/12 v6.75a.
%    \begin{macrocode}
\DeclareOption{hyperref}{%
  \long\def\Hy@setouterhbox#1#2{%
    \setouterhbox{#1}#2\endsetouterhbox
  }%
}
%    \end{macrocode}
%    \end{macro}
%    \begin{macrocode}
\ProcessOptions\relax
%    \end{macrocode}
%
%    \begin{macrocode}
\setouterhboxAtEnd%
%</package>
%    \end{macrocode}
%% \section{Installation}
%
% \subsection{Download}
%
% \paragraph{Package.} This package is available on
% CTAN\footnote{\CTANpkg{setouterhbox}}:
% \begin{description}
% \item[\CTAN{macros/latex/contrib/oberdiek/setouterhbox.dtx}] The source file.
% \item[\CTAN{macros/latex/contrib/oberdiek/setouterhbox.pdf}] Documentation.
% \end{description}
%
%
% \paragraph{Bundle.} All the packages of the bundle `oberdiek'
% are also available in a TDS compliant ZIP archive. There
% the packages are already unpacked and the documentation files
% are generated. The files and directories obey the TDS standard.
% \begin{description}
% \item[\CTANinstall{install/macros/latex/contrib/oberdiek.tds.zip}]
% \end{description}
% \emph{TDS} refers to the standard ``A Directory Structure
% for \TeX\ Files'' (\CTANpkg{tds}). Directories
% with \xfile{texmf} in their name are usually organized this way.
%
% \subsection{Bundle installation}
%
% \paragraph{Unpacking.} Unpack the \xfile{oberdiek.tds.zip} in the
% TDS tree (also known as \xfile{texmf} tree) of your choice.
% Example (linux):
% \begin{quote}
%   |unzip oberdiek.tds.zip -d ~/texmf|
% \end{quote}
%
% \subsection{Package installation}
%
% \paragraph{Unpacking.} The \xfile{.dtx} file is a self-extracting
% \docstrip\ archive. The files are extracted by running the
% \xfile{.dtx} through \plainTeX:
% \begin{quote}
%   \verb|tex setouterhbox.dtx|
% \end{quote}
%
% \paragraph{TDS.} Now the different files must be moved into
% the different directories in your installation TDS tree
% (also known as \xfile{texmf} tree):
% \begin{quote}
% \def\t{^^A
% \begin{tabular}{@{}>{\ttfamily}l@{ $\rightarrow$ }>{\ttfamily}l@{}}
%   setouterhbox.sty & tex/generic/oberdiek/setouterhbox.sty\\
%   setouterhbox.pdf & doc/latex/oberdiek/setouterhbox.pdf\\
%   setouterhbox-example.tex & doc/latex/oberdiek/setouterhbox-example.tex\\
%   setouterhbox.dtx & source/latex/oberdiek/setouterhbox.dtx\\
% \end{tabular}^^A
% }^^A
% \sbox0{\t}^^A
% \ifdim\wd0>\linewidth
%   \begingroup
%     \advance\linewidth by\leftmargin
%     \advance\linewidth by\rightmargin
%   \edef\x{\endgroup
%     \def\noexpand\lw{\the\linewidth}^^A
%   }\x
%   \def\lwbox{^^A
%     \leavevmode
%     \hbox to \linewidth{^^A
%       \kern-\leftmargin\relax
%       \hss
%       \usebox0
%       \hss
%       \kern-\rightmargin\relax
%     }^^A
%   }^^A
%   \ifdim\wd0>\lw
%     \sbox0{\small\t}^^A
%     \ifdim\wd0>\linewidth
%       \ifdim\wd0>\lw
%         \sbox0{\footnotesize\t}^^A
%         \ifdim\wd0>\linewidth
%           \ifdim\wd0>\lw
%             \sbox0{\scriptsize\t}^^A
%             \ifdim\wd0>\linewidth
%               \ifdim\wd0>\lw
%                 \sbox0{\tiny\t}^^A
%                 \ifdim\wd0>\linewidth
%                   \lwbox
%                 \else
%                   \usebox0
%                 \fi
%               \else
%                 \lwbox
%               \fi
%             \else
%               \usebox0
%             \fi
%           \else
%             \lwbox
%           \fi
%         \else
%           \usebox0
%         \fi
%       \else
%         \lwbox
%       \fi
%     \else
%       \usebox0
%     \fi
%   \else
%     \lwbox
%   \fi
% \else
%   \usebox0
% \fi
% \end{quote}
% If you have a \xfile{docstrip.cfg} that configures and enables \docstrip's
% TDS installing feature, then some files can already be in the right
% place, see the documentation of \docstrip.
%
% \subsection{Refresh file name databases}
%
% If your \TeX~distribution
% (\TeX\,Live, \mikTeX, \dots) relies on file name databases, you must refresh
% these. For example, \TeX\,Live\ users run \verb|texhash| or
% \verb|mktexlsr|.
%
% \subsection{Some details for the interested}
%
% \paragraph{Unpacking with \LaTeX.}
% The \xfile{.dtx} chooses its action depending on the format:
% \begin{description}
% \item[\plainTeX:] Run \docstrip\ and extract the files.
% \item[\LaTeX:] Generate the documentation.
% \end{description}
% If you insist on using \LaTeX\ for \docstrip\ (really,
% \docstrip\ does not need \LaTeX), then inform the autodetect routine
% about your intention:
% \begin{quote}
%   \verb|latex \let\install=y\input{setouterhbox.dtx}|
% \end{quote}
% Do not forget to quote the argument according to the demands
% of your shell.
%
% \paragraph{Generating the documentation.}
% You can use both the \xfile{.dtx} or the \xfile{.drv} to generate
% the documentation. The process can be configured by the
% configuration file \xfile{ltxdoc.cfg}. For instance, put this
% line into this file, if you want to have A4 as paper format:
% \begin{quote}
%   \verb|\PassOptionsToClass{a4paper}{article}|
% \end{quote}
% An example follows how to generate the
% documentation with pdf\LaTeX:
% \begin{quote}
%\begin{verbatim}
%pdflatex setouterhbox.dtx
%makeindex -s gind.ist setouterhbox.idx
%pdflatex setouterhbox.dtx
%makeindex -s gind.ist setouterhbox.idx
%pdflatex setouterhbox.dtx
%\end{verbatim}
% \end{quote}
%
% \begin{thebibliography}{9}
%
% \bibitem{newsstart}
%   Damian Menscher, \Newsgroup{comp.text.tex},
%   \textit{overlong lines in List of Figures},
%   \nolinkurl{<dh058t$qbd$1@news.ks.uiuc.edu>},
%   23rd September 2005.
%   \url{https://groups.google.com/group/comp.text.tex/msg/79648d4cf1f8bc13}
%
% \bibitem{kastrup}
%   David Kastrup, \Newsgroup{comp.text.tex},
%   \textit{Re: ANN: outerhbox.sty -- collect horizontal material,
%   for unboxing into a paragraph},
%   \nolinkurl{<85y855lrx3.fsf@lola.goethe.zz>},
%   7th October 2005.
%   \url{https://groups.google.com/group/comp.text.tex/msg/7cf0a345ef932e52}
%
% \bibitem{downes}
%   Michael Downes, \textit{Line breaking in \cs{unhbox}ed Text},
%   TUGboat 11 (1990), pp. 605--612.
%
% \bibitem{hyperref}
%   Sebastian Rahtz, Heiko Oberdiek:
%   \textit{The \xpackage{hyperref} package};
%   2006/08/16 v6.75c;
%   \CTANpkg{hyperref}.
%
% \end{thebibliography}
%
% \begin{History}
%   \begin{Version}{2005/10/05 v1.0}
%   \item
%     First version.
%   \end{Version}
%   \begin{Version}{2005/10/07 v1.1}
%   \item
%     Option \xoption{hyperref} added.
%   \end{Version}
%   \begin{Version}{2005/10/18 v1.2}
%   \item
%     Support for explicit line breaks added.
%   \end{Version}
%   \begin{Version}{2006/02/12 v1.3}
%   \item
%     DTX format.
%   \item
%     Documentation extended.
%   \end{Version}
%   \begin{Version}{2006/08/26 v1.4}
%   \item
%     Date of hyperref updated.
%   \end{Version}
%   \begin{Version}{2007/04/26 v1.5}
%   \item
%     Use of package \xpackage{infwarerr}.
%   \end{Version}
%   \begin{Version}{2007/05/17 v1.6}
%   \item
%     Standard header part for generic files.
%   \end{Version}
%   \begin{Version}{2007/09/09 v1.7}
%   \item
%     Catcode section added.
%   \end{Version}
%   \begin{Version}{2016/05/16 v1.8}
%   \item
%     Documentation updates.
%   \end{Version}
% \end{History}
%
% \PrintIndex
%
% \Finale
\endinput