summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/source/latex/oberdiek/refcount.dtx
blob: 93b0dcf029d971f269876fbc12f4d9450a63ebec (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
% \iffalse meta-comment
% 
% Copyright (C) 1998, 2000, 2006, 2008 by
%    Heiko Oberdiek <oberdiek@uni-freiburg.de>
% 
% 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
%    http://www.latex-project.org/lppl/lppl-1-3c.txt
% and the latest version of this license is in
%    http://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".
% 
% This Current Maintainer of this work is Heiko Oberdiek.
% 
% This work consists of the main source file refcount.dtx
% and the derived files
%    refcount.sty, refcount.pdf, refcount.ins, refcount.drv.
% 
% Distribution:
%    CTAN:macros/latex/contrib/oberdiek/refcount.dtx
%    CTAN:macros/latex/contrib/oberdiek/refcount.pdf
% 
% Unpacking:
%    (a) If refcount.ins is present:
%           tex refcount.ins
%    (b) Without refcount.ins:
%           tex refcount.dtx
%    (c) If you insist on using LaTeX
%           latex \let\install=y\input{refcount.dtx}
%        (quote the arguments according to the demands of your shell)
% 
% Documentation:
%    (a) If refcount.drv is present:
%           latex refcount.drv
%    (b) Without refcount.drv:
%           latex refcount.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 refcount.dtx
%       makeindex -s gind.ist refcount.idx
%       pdflatex refcount.dtx
%       makeindex -s gind.ist refcount.idx
%       pdflatex refcount.dtx
% 
% Installation:
%    TDS:tex/latex/oberdiek/refcount.sty
%    TDS:doc/latex/oberdiek/refcount.pdf
%    TDS:source/latex/oberdiek/refcount.dtx
%
%<*ignore>
\begingroup
  \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: refcount 2008/08/11 v3.1 Data extraction from references (HO)}
\Msg{************************************************************************}

\keepsilent
\askforoverwritefalse

\let\MetaPrefix\relax
\preamble

This is a generated file.

Copyright (C) 1998, 2000, 2006, 2008 by
   Heiko Oberdiek <oberdiek@uni-freiburg.de>

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
   http://www.latex-project.org/lppl/lppl-1-3c.txt
and the latest version of this license is in
   http://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".

This Current Maintainer of this work is Heiko Oberdiek.

This work consists of the main source file refcount.dtx
and the derived files
   refcount.sty, refcount.pdf, refcount.ins, refcount.drv.

\endpreamble
\let\MetaPrefix\DoubleperCent

\generate{%
  \file{refcount.ins}{\from{refcount.dtx}{install}}%
  \file{refcount.drv}{\from{refcount.dtx}{driver}}%
  \usedir{tex/latex/oberdiek}%
  \file{refcount.sty}{\from{refcount.dtx}{package}}%
}

\obeyspaces
\Msg{************************************************************************}
\Msg{*}
\Msg{* To finish the installation you have to move the following}
\Msg{* file into a directory searched by TeX:}
\Msg{*}
\Msg{*     refcount.sty}
\Msg{*}
\Msg{* And install the following script file:}
\Msg{*}
\Msg{*     }
\Msg{*}
\Msg{* To produce the documentation run the file `refcount.drv'}
\Msg{* through LaTeX.}
\Msg{*}
\Msg{* Happy TeXing!}
\Msg{*}
\Msg{************************************************************************}

\endbatchfile
%</install>
%<*ignore>
\fi
%</ignore>
%<*driver>
\NeedsTeXFormat{LaTeX2e}
\ProvidesFile{refcount.drv}%
  [2008/08/11 v3.1 Data extraction from references (HO)]%
\documentclass{ltxdoc}
\usepackage{holtxdoc}[2008/08/11]
\begin{document}
  \DocInput{refcount.dtx}%
\end{document}
%</driver>
% \fi
%
% \CheckSum{198}
%
% \CharacterTable
%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%   Digits        \0\1\2\3\4\5\6\7\8\9
%   Exclamation   \!     Double quote  \"     Hash (number) \#
%   Dollar        \$     Percent       \%     Ampersand     \&
%   Acute accent  \'     Left paren    \(     Right paren   \)
%   Asterisk      \*     Plus          \+     Comma         \,
%   Minus         \-     Point         \.     Solidus       \/
%   Colon         \:     Semicolon     \;     Less than     \<
%   Equals        \=     Greater than  \>     Question mark \?
%   Commercial at \@     Left bracket  \[     Backslash     \\
%   Right bracket \]     Circumflex    \^     Underscore    \_
%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%   Right brace   \}     Tilde         \~}
%
% \GetFileInfo{refcount.drv}
%
% \title{The \xpackage{refcount} package}
% \date{2008/08/11 v3.1}
% \author{Heiko Oberdiek\\\xemail{oberdiek@uni-freiburg.de}}
%
% \maketitle
%
% \begin{abstract}
% References are not numbers, however they often store numerical
% data such as section or page numbers. \cs{ref} or \cs{pageref}
% cannot be used for counter assignments or calculations because
% they are not expandable, generate warnings, or can even be links,
% The package provides expandable macros to extract the data
% from references. Packages \xpackage{hyperref}, \xpackage{nameref},
% \xpackage{titleref}, and \xpackage{babel} are supported.
% \end{abstract}
%
% \tableofcontents
%
% \section{Usage}
%
% \subsection{Setting counters}
%
% The following commands are similar to \LaTeX's
% \cs{setcounter} and \cs{addtocounter},
% but they extract the number value from a reference:
% \begin{quote}
%   \cs{setcounterref}, \cs{addtocounterref}\\
%   \cs{setcounterpageref}, \cs{addtocounterpageref}
% \end{quote}
% They take two arguments:
% \begin{quote}
%    \cs{...counter...ref} |{|\meta{\LaTeX\ counter}|}|
%    |{|\meta{reference}|}|
% \end{quote}
% An undefined references produces the usual LaTeX warning
% and its value is assumed to be zero.
% Example:
% \begin{quote}
%\begin{verbatim}
%\newcounter{ctrA}
%\newcounter{ctrB}
%\refstepcounter{ctrA}\label{ref:A}
%\setcounterref{ctrB}{ref:A}
%\addtocounterpageref{ctrB}{ref:A}
%\end{verbatim}
% \end{quote}
%
% \subsection{Expandable commands}
%
% These commands that can be used in expandible contexts
% (inside calculations, \cs{edef}, \cs{csname}, \cs{write}, \dots):
% \begin{quote}
%   \cs{getrefnumber}, \cs{getpagerefnumber}
% \end{quote}
% They take one argument, the reference:
% \begin{quote}
%   \cs{get...refnumber} |{|\meta{reference}|}|
% \end{quote}
% The default for undefined references can be changed
% with macro \cs{setrefcountdefault}, for example this
% package calls:
% \begin{quote}
%   \cs{setrefcountdefault}|{0}|
% \end{quote}
%
% Since version 2.0 of this package there is a new
% command:
% \begin{quote}
%   \cs{getrefbykeydefault} |{|\meta{reference}|}|
%   |{|\meta{key}|}| |{|\meta{default}|}|
% \end{quote}
% This generalized version allows the extraction
% of further properties of a reference than the
% two standard ones. Thus the following properties
% are supported, if they are available:
% \begin{quote}
% \begin{tabular}{@{}l|l|l@{}}
%    Key & Description & Package\\
% \hline
%   \meta{empty} & same as \cs{ref} & \LaTeX\\
%   |page| & same as \cs{pageref} & \LaTeX\\
%   |title| & section and caption titles & \xpackage{titleref}\\
%   |name| & section and caption titles & \xpackage{nameref}\\
%   |anchor| & anchor name & \xpackage{hyperref}\\
%   |url| & url/file & \xpackage{hyperref}/\xpackage{xr}
% \end{tabular}
% \end{quote}
%
% \subsection{Undefined references}
%
% Because warnings and assignments cannot be used in
% expandible contexts, undefined references do not
% produce a warning, their values are assumed to be zero.
% Example:
% \begin{quote}
%\begin{verbatim}
%\label{ref:here}% somewhere
%\refused{ref:here}% see below
%\ifodd\getpagerefnumber{ref:here}%
%  reference is on an odd page
%\else
%  reference is on an even page
%\fi
%\end{verbatim}
% \end{quote}
%
% In case of undefined references the user usually want's
% to be informed. Also \LaTeX\ prints a warning at
% the end of the \LaTeX\ run. To notify \LaTeX\ and
% get a normal warning, just use
% \begin{quote}
%   \cs{refused} |{|\meta{reference}|}|
% \end{quote}
% outside the expanding context. Example, see above.
%
% \subsection{Notes}
%
% \begin{itemize}
% \item
%   The method of extracting the number in this
%   package also works in cases, where the
%   reference cannot be used directly, because
%   a package such as \xpackage{hyperref} has added
%   extra stuff (hyper link), so that the reference cannot
%   be used as number any more.
% \item
%   If the reference does not contain a number,
%   assignments to a counter will fail of course.
% \end{itemize}
%
%
% \StopEventually{
% }
%
% \section{Implementation}
%
%    \begin{macrocode}
%<*package>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{refcount}
  [2008/08/11 v3.1 Data extraction from references (HO)]%

\def\setrefcountdefault#1{%
  \def\rc@default{#1}%
}
\setrefcountdefault{0}

% \def\@car#1#2\@nil{#1} % defined in LaTeX kernel
\def\rc@cartwo#1#2#3\@nil{#2}

% generic check without babel support
\long\def\rc@refused#1{%
  \expandafter\ifx\csname r@#1\endcsname\relax
    \protect\G@refundefinedtrue
    \@latex@warning{%
      Reference `#1' on page \thepage\space undefined%
    }%
  \fi
}

% user command, add babel support
\newcommand*{\refused}[1]{%
  \begingroup
    \csname @safe@activestrue\endcsname
    \rc@refused{#1}{}%
  \endgroup
}

% Generic command for "\{set,addto}counter{page,}ref":
% #1: \setcounter, \addtocounter
% #2: \@car (for \ref), \@cartwo (for \pageref)
% #3: LaTeX counter
% #4: reference
\def\rc@set#1#2#3#4{%
  \begingroup
    \csname @safe@activestrue\endcsname
    \rc@refused{#4}%
    \expandafter\rc@@set\csname r@#4\endcsname{#1}{#2}{#3}%
  \endgroup
}
% #1: \r@<...>
% #2: \setcounter, \addtocounter
% #3: \@car (for \ref), \@cartwo (for \pageref)
% #4: LaTeX counter
\def\rc@@set#1#2#3#4{%
  \ifx#1\relax
    #2{#4}{\rc@default}%
  \else
    #2{#4}{%
      \expandafter#3#1\rc@default\rc@default\@nil
    }%
  \fi
}

% user commands:

\newcommand*{\setcounterref}{\rc@set\setcounter\@car}
\newcommand*{\addtocounterref}{\rc@set\addtocounter\@car}
\newcommand*{\setcounterpageref}{\rc@set\setcounter\rc@cartwo}
\newcommand*{\addtocounterpageref}{\rc@set\addtocounter\rc@cartwo}

\newcommand*{\getrefnumber}[1]{%
  \expandafter\ifx\csname r@#1\endcsname\relax
    \rc@default
  \else
    \expandafter\expandafter\expandafter\@car
    \csname r@#1\endcsname\@nil
  \fi
}
\newcommand*{\getpagerefnumber}[1]{%
  \expandafter\ifx\csname r@#1\endcsname\relax
    \rc@default
  \else
    \expandafter\expandafter\expandafter\rc@cartwo
    \csname r@#1\endcsname\rc@default\rc@default\@nil
  \fi
}
\newcommand*{\getrefbykeydefault}[2]{%
  \expandafter\rc@getrefbykeydefault
    \csname r@#1\expandafter\endcsname
    \csname rc@extract@#2\endcsname
}
% #1: \r@<...>
% #2: \rc@extract@<...>
% #3: default
\def\rc@getrefbykeydefault#1#2#3{%
  \ifx#1\relax
    % reference is undefined
    #3%
  \else
    \ifx#2\relax
      % extract method is missing
      #3%
    \else
      \expandafter\rc@generic#1{#3}{#3}{#3}{#3}{#3}\@nil#2{#3}%
    \fi
  \fi
}
% #1: first item in \r@<...>
% #2: remaining items in \r@<...>
% #3: \rc@extract@<...>
% #4: default
\def\rc@generic#1#2\@nil#3#4{%
  #3{#1\TR@TitleReference\@empty{#4}\@nil}{#1}#2\@nil
}
\def\rc@extract@{%
  \expandafter\@car\@gobble
}
\def\rc@extract@page{%
  \expandafter\@car\@gobbletwo
}
\def\rc@extract@name{%
  \expandafter\@car\@gobblefour\@empty
}
\def\rc@extract@anchor{%
  \expandafter\@car\@gobblefour
}
\def\rc@extract@url{%
  \expandafter\expandafter\expandafter\@car\expandafter
      \@gobble\@gobblefour
}
\def\rc@extract@title#1#2\@nil{%
  \rc@@extract@title#1%
}
\def\rc@@extract@title#1\TR@TitleReference#2#3#4\@nil{#3}
%</package>
%    \end{macrocode}
%
% \section{Installation}
%
% \subsection{Download}
%
% \paragraph{Package.} This package is available on
% CTAN\footnote{\url{ftp://ftp.ctan.org/tex-archive/}}:
% \begin{description}
% \item[\CTAN{macros/latex/contrib/oberdiek/refcount.dtx}] The source file.
% \item[\CTAN{macros/latex/contrib/oberdiek/refcount.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[\CTAN{install/macros/latex/contrib/oberdiek.tds.zip}]
% \end{description}
% \emph{TDS} refers to the standard ``A Directory Structure
% for \TeX\ Files'' (\CTAN{tds/tds.pdf}). 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}
%
% \paragraph{Script installation.}
% Check the directory \xfile{TDS:scripts/oberdiek/} for
% scripts that need further installation steps.
% Package \xpackage{attachfile2} comes with the Perl script
% \xfile{pdfatfi.pl} that should be installed in such a way
% that it can be called as \texttt{pdfatfi}.
% Example (linux):
% \begin{quote}
%   |chmod +x scripts/oberdiek/pdfatfi.pl|\\
%   |cp scripts/oberdiek/pdfatfi.pl /usr/local/bin/|
% \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 refcount.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@{}}
%   refcount.sty & tex/latex/oberdiek/refcount.sty\\
%   refcount.pdf & doc/latex/oberdiek/refcount.pdf\\
%   refcount.dtx & source/latex/oberdiek/refcount.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
% (\teTeX, \mikTeX, \dots) relies on file name databases, you must refresh
% these. For example, \teTeX\ users run \verb|texhash| or
% \verb|mktexlsr|.
%
% \subsection{Some details for the interested}
%
% \paragraph{Attached source.}
%
% The PDF documentation on CTAN also includes the
% \xfile{.dtx} source file. It can be extracted by
% AcrobatReader 6 or higher. Another option is \textsf{pdftk},
% e.g. unpack the file into the current directory:
% \begin{quote}
%   \verb|pdftk refcount.pdf unpack_files output .|
% \end{quote}
%
% \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{refcount.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 refcount.dtx
%makeindex -s gind.ist refcount.idx
%pdflatex refcount.dtx
%makeindex -s gind.ist refcount.idx
%pdflatex refcount.dtx
%\end{verbatim}
% \end{quote}
%
% \begin{History}
%   \begin{Version}{1998/04/08 v1.0}
%   \item
%     First public release, written as answer in the
%     newsgroup \xnewsgroup{comp.text.tex}:
%     \URL{``\link{Re: Adding a \cs{ref} to a counter?}''}^^A
%     {http://groups.google.com/group/comp.text.tex/msg/c3f2a135ef5ee528}
%   \end{Version}
%   \begin{Version}{2000/09/07 v2.0}
%   \item
%     Documentation added.
%   \item
%     LPPL 1.2
%   \item
%     Package rewritten, new commands added.
%   \end{Version}
%   \begin{Version}{2006/02/20 v3.0}
%   \item
%     Support for \xpackage{hyperref} and \xpackage{nameref} improved.
%   \item
%     Support for \xpackage{titleref} and \xpackage{babel}'s shorthands added.
%   \item
%     New: \cs{refused}, \cs{getrefbykeydefault}
%   \end{Version}
%   \begin{Version}{2008/08/11 v3.1}
%   \item
%     Code is not changed.
%   \item
%     URLs updated.
%   \end{Version}
% \end{History}
%
% \PrintIndex
%
% \Finale
\endinput