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\NeedsTeXFormat{LaTeX2e}[1994/12/01] %% \newcommand* etc. 
\ProvidesPackage{texlinks}[2011/10/21 v0.5 TeX-related links (UL)] 
%% copyright (C) 2011 Uwe Lueck, 
%% http://www.contact-ednotes.sty.de.vu 
%% -- author-maintained in the sense of LPPL below.
%%
%% This file can be redistributed and/or modified under 
%% the terms of the LaTeX Project Public License; either 
%% version 1.3c of the License, or any later version.
%% The latest version of this license is in
%%     http://www.latex-project.org/lppl.txt
%% We did our best to help you, but there is NO WARRANTY. 
%%
%% Please report bugs, problems, and suggestions via 
%% 
%%   http://www.contact-ednotes.sty.de.vu 
%%
%% == Outline                               ==
%% % Almost                             %% 2011/07/23
%% % all the            %% including https 2011/08/27
%% The link macros of 'texlinks' are based on macros 
%% |\httpref| and |\httpsref|. For use of 'texlinks' with 'blog.sty', 
%% the latter provides definitions of `\httpref' and `\httpsref'
%% suitable for \HTML, where a choice of opening a new 
%% tab or window---or not---is relevant.
%%
%% For use with 'hyperref' (or ...?), 'texlinks' may 
%% provide definitions of `\httpref' and `\httpsref' 
%% based on `\href'. The decision to do so or not may happen at 
%% `\begin{document}'. 'blog.sty' generates \HTML\ without 
%% using the `{document}' environment, so we might assume 
%% that when `\begin{document}' is found, we are running
%% 'hyperref', or just \emph{something} that provides a 
%% useful `\href'. We might then execute a definition of 
%% `\httpref' in terms of `\href'. Well, not sure ...
%% 
%% Moreover, a \acro{PDF} file with links may be \emph{printed}, 
%% and klicking the links on the paper may fail. 
%% \URL s in main text, on the other hand, sometimes are 
%% troublesome. I consider it a good idea to present 
%% links with their \URL\ as the displayed text in \emph{footnotes}
%% (or endnotes). It may even be useful with \HTML\ to present 
%% the \URL s displayed in some 
%% %% 2011/01/27:               %% rm. 2011/10/20
%% ``appendix."---This idea has been resumed in v0.2 only, 
%% |\urlfoot|.
%% %
%% % I tend to introduce something for this ... and there might be a 
%% % package option forcing `\httpref' to use this style. 
%% % Well, better \emph{not today} ... [2011/01/24, TODO]
%%
%% == Package Options                       ==
%% Somebody may want to suppress a definition of `\httpref'
%% at `\begin{document}' ... [2011/01/24, TODO]
%% %% 2011/02/10:
%% 
%% v0.3: Package option |[blog]| suppresses \emph{any} 
%% `\AtBeginDocument' actions---fine for use with 'blog.sty'. 
\DeclareOption{blog}{\let\AtBeginDocument\@gobble}
%% This option may be improved, and another option may be 
%% useful for different purposes than running 'blog.sty'.
\ProcessOptions
%%
%% == Fonts for \URL s and File/Package Names ==
%% %% ** Fonts for \URL s, File Names, and Package Names **
%% %% new 2011/10/19, TODO: `meansltx'? vgl. `makedoc.cfg'
%% This section ``provides" markup for displaying \URL s (|\urlfmt|), 
%% file names (|\filenamefmt|---thinking of single files 
%% that may be found in the internet or on your computer---, 
%% and ``packages" (|\pkgnamefmt|). 
%% For the latter two, in certain files I use shorthands 
%% |\file| and |\pkg|, resp., ... 
%% (Not sure about `\providecommand' TODO ...)
%% %% TODO "fallback" with 'provlast'
%% 
%% It is usual to use `\texttt' for formatting \TeX\ code 
%% (``verbatim", `\verb' etc.). It may also be common to use 
%% `\texttt' for file names, perhaps even for \URL s. 
%% Therefore we provide |\urlfmt{<url>}| as follows: 
\providecommand*{\urlfmt}{\texttt}
%% The file name format |\filenamefmt{<file-name>}|
%% may differ from the format for \URL s---if somebody 
%% wants/adjusts it, \emph{here} it is the \emph{same:}
\providecommand*{\filenamefmt}{\texttt}
%% ... 
%% I favour `\code' over `\texttt' as ``logical markup," 
%% inspired by the \xmltagcode{code} element in \HTML, 
%% but it is too difficult to provide this right now here ...
%% 
%% %% Instead of |\pkgnamefmt{<pack-name>}|, 
%% %% 'blog.sty' had `\pkg{<pack-name>}',      %% was `prg' 2011/10/20
%% %% without a proper implementation. 
%% |\pkgnamefmt{<package-name>}| displays the name of a ``package". 
%% Using `\textsf' for `\pkgnamefmt' 
%% seems to conform to common practice today---implemented here. 
%% The following code may later be suppressed at some package options, 
%% as with the choice for `\httpref':   %% TODO 2011/01/24
% \@ifdefinable\pkgnamefmt {\let\pkgnamefmt\@firstofone}
% \AtBeginDocument         {\let\pkgnamefmt\textsf}
%% <- This was here until v0.61, makes a difference for \acro{PDF}
%% vs.\ 'blog' \HTML. Now we choose the same as with `\urlfmt':
\providecommand*{\pkgnamefmt}{\textsf}
%% Indeed, the same day we are providing `\textsf' in 'blog.sty'.
%% However, the rationale of the earlier solution was 
%% that web pages use sans-serif as the \emph{normal} font ...
%%
%% %% moving \httpsref 2011/08/27:
%% == Providing &\httpref\ and   &\httpsref ==
%%                             %% rm. \kern-\baselineskip 2011/10/10
%% \[|\httpref{<host-path[#frag]>}{<text>}|\]
%% should display <text> 
%% as a link to `http://<host-path[#frag]>'; 
%% \[|\httpsref{<host-path[#frag]>}{<text>}|\]
%% is the obvious analogue for `https:' \URL s. 
%% In case `\begin{document}' is found with a definition of 
%% `\href' present, we provide definitions of `\httpref'
%% and `\httpsref' in terms of `\href' there:
\AtBeginDocument{%
    \@ifundefined{href}{%
%         \PackageError ... TODO!? 2011/01/24
      }{\newcommand*{\httpref} [1]{\href {http://#1}}%
        \newcommand*{\httpsref}[1]{\href{https://#1}}}}
%%
%% == Variants of &\httpref\ and &\httpsref ==
%% |\NormalHTTPref| may be used as an alias for `\httpref' 
%% in situations where the latter has been redefined    %% v0.2
%% (as in Section~\ref{sec:urlfoot}):
\AtBeginDocument{%% TODO: options, guarded \let (mine, HO)
    \@ifdefinable\NormalHTTPref{\let\NormalHTTPref\httpref}} 
%% |\ithttpref{<url>}{<text>}| displays <text> in italics:
% \newcommand*{\ithttpref}[2]{\NormalHTTPref{#1}{\textit{#2}}}
%% However, I seem never to have used it. And I would now 
%% prefer |\metahttpref| TODO ...
%%
%% === \URL s as Links ===
%% With |\urlhttpref{<url>}|, that \URL\ <url> is displayed:
\newcommand*{\urlhttpref}[1]{%
    \NormalHTTPref{#1}{\urlfmt{\httpprefix#1}}} 
%% %% moved up here 2011/10/20
%% In 'blog.sty' (as of 2010/05/26), there was a command 
%% `\urlref' instead of `\urlhttpref'. It did not provide `\urlfmt'.
%%
%% |\httpprefix| is an idea that was missing in 'blog.sty' up to v0.3. 
%% It may be used to determine generally whether a display of an 
%% \URL\ should include `http://'. I choose as default what was default 
%% in 'blog.sty' 
%% (i.e., ``don't include"):                        %% add. 2011/01/27
\@ifdefinable\httpprefix{\let\httpprefix\@empty}    %% TODO cf. above
%% `\let\httpprefix\relax' would be bad for 'blog.sty' 
%% (would display `\relax'), 
%% while it would be somewhat more efficient.%%%---%%%
%%
%% Now you may customize `\httpprefix' by 
%% \[`\renewcommand{\httpprefix}{http://}'\]
%% %% v0.2:
%% ---or by `\let\httpprefix'|\theHTTPprefix|:
\newcommand*{\theHTTPprefix}{http://}
%% With |\urlhttpsref{<url>}|, we \emph{force} displaying \qtd{`https://'}:
\newcommand*{\urlhttpsref}[1]{\httpsref{#1}{\urlfmt{https://#1}}}
%%
%% === Linking \URL s in Footnotes ===     %% 2011/08/27
%% \label{sec:urlfoot}
%% |\foothttpurlref{<url>}| just is like
%% `\footnote{\urlhttpref{<url>}}':
\newcommand*{\foothttpurlref}[1]{\footnote{\urlhttpref{#1}}}
%% |\urlfoot{<short>}{<id>}|
%% redefines `\httpref' so that you can use all the shorthand 
%% macros based on `\httpref' to get the according \URL\ 
%% display (as provided by `\urlhttpref')
%% in a footnote without the need to include the 
%% entire \URL\ in your source code. `\urlfoot' is available 
%% with <short> and <id>
%% when a shorthand |\<short>{<id>}{<text>}| has been defined
%% where `\<short>' is the macro name and <id> is the target 
%% identifier (usually part of the \URL\ generated from <id>)
%% according to the syntax declaration of `\<short>'. 
\newcommand*{\urlfoot}[2]{{%
    \let\httpref\foothttpurlref 
    \let\httpprefix\theHTTPprefix   %% TODO customizable!?
    \csname #1\endcsname{#2}{}}}
%% \strong{Example:} 
%% \[`\CtanPkgRef{morehype}{MoreHype}'
%%   \mbox{\quad and\quad } `\ctanpkgref{morehype}'\] 
%% are provided below for linking to
%% `http://ctan.org/pkg/morehype'.
%% \begin{itemize}
%%   \item Try `CtanPkgRef' \emph{here}: 
%% \CtanPkgRef{morehype}{MoreHype},\\ 
%% for the \emph{footnote} try
%% `\urlfoot{CtanPkgRef}{morehype}';%%%
%%  \urlfoot{CtanPkgRef}{morehype}
%%   \item try `ctanpkgref' \emph{here}: \ctanpkgref{morehype},\\ 
%% for the \emph{footnote} try 
%% `\urlfoot{ctanpkgref}{morehype}'.%%%
%% \urlfoot{ctanpkgref}{morehype}
%% \end{itemize}
%% The lonely \qtd{\pkgnamefmt{morehype}} you see there above 
%% demonstrates that it doesn't work with `ctanpkgref' because 
%% `\ctanpkgref' doesn't have separate arguments for 
%% <id> and <text>, it actually doubles <id>. 
%% A local `\let\ctanpkgref\CtanPkgRef' could help, 
%% but right now I prefer waiting for a better idea. 
%% [TODO] %% 2011/01/27
%%
%% v0.3: Now that using `\urlfoot' and `ctanpkgref' together 
%% is so clumsy, while I use it quite often,    %% 2011/02/10
%% we get |\urlpkgfoot{<package-id>}|, abbreviating 
%% `\urlfoot{CtanPkgRef}{<package-id>}':
\newcommand* {\urlpkgfoot} {\urlfoot{CtanPkgRef}}
%%
%% == Wikipedia    ==
%% %% TODO separate wikilink.sty? https:!? 
%% === Backbones ===
%% As of v0.4, we have a \dqtd{backbone} macro 
%% \[|\wikiref{<language-code>}{<lemma>}{<text>}|\]
%% for links to Wikipedia. <language-code> consists of 
%% two characters like \lq`de'\rq\ for German Wikipedia articles 
%% or \lq`en'\rq\ for English ones. <lemma> is the identifier of 
%% the article, and <text> is displayed as the link:
\newcommand*{\wikiref}[2]{\httpref{#1.wikipedia.org/wiki/#2}}
%% There is |\Wikiref{<language-code>}{<lemma>}| 
%% for the case that <lemma> and <text> are the same:
\newcommand*{\Wikiref}[2]{\wikiref{#1}{#2}{#2}}
%% We could have `\wikiref{<lang>}[<id>]{<text>}' instead, then 
%% `\Wikiref' would not be needed; however, the present code is to 
%% work with 'blog.sty', where optional arguments fail.%%%---
%%
%% Quite often, programs share their names with movies,
%% biological species, etc., then lemma disambiguation is required. 
%% Usually, we don't want to display the disambiguation.
%% \[|\Wikidisambref{<language-code>}{<term>}{<suffix>}|\] 
%% will link to
%% \[`http://en.wikipedia.org/wiki/<term>_(<suffix>)'\]
\newcommand*{\Wikidisambref}[3]{\wikiref{#1}{#2 (#3)}{#2}}
%% There                    %% was `Their' 2011/07/23
%% was something like a more general variant |\wikidisambref|, 
%% now I doubt its usefulness and \textcolor{blue}{omit} it 
%% in order to see where it occurs (2011/05/13).
%%
%% For \strong{anchors}, \qtd{&#} can be used with 'blog.sty'---and 
%% even with 'hyperref'.
%% \par\smallskip\noindent
%% \strong{Example:}\quad
%% `\wikienref{TeX#History}{\TeX}'
%%  \ for \
%%  \wikienref{TeX#History}{\TeX}.
%%
%% === English and German ===
%% The next macros just save you from typing braces around 
%% the language codes for English and German:
%% |\wikienref{<lemma>}{<text>}| refers to the English Wikipedia, 
%% |\wikideref{<lemma>}{<text>}| refers to the German one. 
\newcommand*{\wikideref}{\wikiref{de}}
\newcommand*{\wikienref}{\wikiref{en}}
%% |\Wikideref{<lemma>}| refers to article <lemma> in the German 
%% Wikipedia and displays <lemma> as <text>:
\newcommand*{\Wikideref}{\Wikiref{de}}
%% |\Wikienref{<lemma>}| is `\Wikideref''s analogue for English:
\newcommand*{\Wikienref}{\Wikiref{en}}
%% |\Wikidedisambref{<lemma>}{<suffix>}| chooses a disambiguation 
%% according to <suffix> for the German Wikipedia, 
%% |\Wikiendisambref{<lemma>}{<suffix>}| for the English one:
\newcommand*{\Wikidedisambref}{\Wikidisambref{de}}
\newcommand*{\Wikiendisambref}{\Wikidisambref{en}}
%% 
%%                                  \pagebreak  %% 2011/10/21
%% === Blanks and Umlauts in \URL s and Anchors ===
%% %% <- renamed 2011/05/17 reworked:
%% |\underscorechar| seemed to be useful in macro 
%% definitions. The name was inspired by \LaTeX's 
%% `\@backslashchar' and `\@percentchar'. 
%% However, I am now trying what happens without it. 
%% It occurred in `blog.tex' for the documentation of 
%% the 'blog' package, but `\string_' seems to be a good 
%% replacement.
% \newcommand \underscorechar {}
% {\@makeother\_ \gdef\underscorechar{_}}
%% Anyway, in my notes I have a more elegant macro for 
%% providing ``other" versions of special characters. 
%% 
%% Guessing what `\underscorechar' was good for (2011-05-17):
%% Wikipedia lemmas and anchors often or even \emph{typically} 
%% contain \emph{blank spaces}. 
%% The Wikipedia software usually converts them into 
%% underscore characters. Blank spaces in \emph{lemmas} 
%% seem \emph{not} to need treatment here in 'texlinks'. 
%% However, Wikipedia also creates \emph{anchors} from 
%% \emph{section headings}, which typically contain blank spaces. 
%% This has been more difficult ...
%%
%% Likewise with umlauts: text encoding suffices for \emph{lemmas}
%% (my `\urluml' is not needed for this purpose). 
%% But umlauts in \emph{anchors} 
%% generated from \emph{section headings} are different. 
%% While umlauts in \emph{lemmas} are represented by sequences 
%% starting with a \emph{percent} character, the anchors 
%% use a \emph{dot} instead of the percent character. 
%% Therefore now |\ancuml{<char>}| is provided:
\newcommand*{\ancuml}[1]{\csname ancuml:#1\endcsname}
\@namedef{ancuml:a}{.C3.A4}
\@namedef{ancuml:o}{.C3.B6}
\@namedef{ancuml:u}{.C3.BC}
\@namedef{ancuml:s}{.C3.9F}
%% What you read in the rest of the section is 
%% \textcolor{blue}{wrong}, the commands are 
%% \textcolor{blue}{dropped} for testing as of 2011/05/13.
%% |\itwikideref| is an italic variant of `\wikideref':
% \newcommand*{\itwikideref}[2]{\wikideref{#1}{\textit{#2}}}
%% By analogy to `\Wikideref', 
%% The following macros save you from typing the underscore 
%% (didn't spaces suffice sometimes?)   %% TODO 2011/01/24
%% and the round parantheses. 
%% Italic variant |\itwikienref| of `\wikienref'
%% ('blog.sty' had `\emwikienref' instead):
% \newcommand*{\itwikienref}[2]{\wikienref{#1}{\textit{#2}}} 
%% |\urluml{<ascii-char>}| as of 2010/05/25 
%% (not sure if it ever worked or was actually needed): 
% \newcommand*{\urluml}[1]{\csname urluml:#1\endcsname}
% \@namedef{urluml:a}{\#C3\#A4}
% \@namedef{urluml:o}{\#C3\#B6}
% \@namedef{urluml:u}{\#C3\#BC}
% \@namedef{urluml:s}{\#C3\#9F}           %% 2010/08/09
%% 
%%                                  \pagebreak  %% 2011/10/21
%% == \TeX-related ==                           %% 2010/08/24
%% === \CTAN                ===
%% ==== Directories and Files in a \TeX\ Archive ====
%% % `\newcommand*{\ctanref}[1]{\httpref{ctan.org/#1}}' 
%% % once was replaced in 'blog.sty' by what will now be 
%% |\tugctanref{<path>}{<text>}|
%% makes <text> a link 
%% to a \TeX~Archive directory or file <path>:
\newcommand*{\tugctanref}[1]{% 
  \httpref{tug.ctan.org/tex-archive/#1}} 
%% Alternatively, you can refer to an (automatically chosen) 
%% \CTAN\ \emph{mirror}
%% using 
%% \[|\mirrorctanref{<path>}{<text>}|.\] %% 2011/10/10 :->.2011/10/21: 
%% (I prefer the \emph{appearance} of the 
%% \tugctanref{}{\acro{TUG} archive}, designed by Jim Hefferon.)
\newcommand*{\mirrorctanref}[1]{\httpref{mirror.ctan.org/#1}} 
%% You may actually want to ``open" a file <file-name> in <path> 
%% on \CTAN, 
%% <file-name> displayed as the link text,          %% 2011/10/21
%% either by 
%% \[|\tugctanfileref{<path>}{<file-name>}|\]       %% 2011/10/10
%% or (for a mirror) by
%% \[|\mirrorctanfileref{<path>}{<file-name>}|.\]   %% 2011/10/10
\newcommand*{\tugctanfileref}[2]{%
    \tugctanref{#1/#2}{\filenamefmt{#2}}}
\newcommand*{\mirrorctanfileref}[2]{%
    \mirrorctanref{#1/#2}{\filenamefmt{#2}}}
%% Typically, \LaTeX\ macro packages in `macros/latex/contrib/'
%% are discussed, so here is |\ltxcontrib| saving a few characters:
\newcommand*{\ltxcontrib}{macros/latex/contrib/}
%% |\ctanref| works like `\tugctanref' or like `\mirrorctanref', 
%% depending on |\usetugctan| vs.\ |\usemirrorctan|.
%% So in any case its syntax is \[|\ctanref{<path>}{<text>}|.\]
%% Likewise, |\ctanfileref| works like 
%% \[`\tugctanfileref'\quad \mbox{or}\quad `\mirrorctanfileref',\]
%% depending on the same `\usetugctan' vs.\ `\usemirrorctan', 
%% so the syntax is 
%% \[|\ctanfileref{<path>}{<file-name>}|\] 
\newcommand*{\ctanref}{}    \newcommand*{\ctanfileref}{}
\newcommand*{\usemirrorctan}{%
    \let \ctanref     \mirrorctanref
    \let \ctanfileref \mirrorctanfileref}
\newcommand*{\usetugctan}{%
    \let \ctanref     \tugctanref
    \let \ctanfileref \tugctanfileref}
%% |\usemirrorctan| is the \strong{default}, i.e., 
%% |\ctanref| and |\ctanfileref| use 
%% \urlhttpref{mirror.ctan.org}:
\usemirrorctan
%% \meta{Remark} (TODO): \ Another implementation I consider is 
%% using some `\ctanurl'\-`prefix' that you can redefine for 
%% accessing your favourite mirror.
%%
%% ==== J\"urgen Fenn's Topical \TeX\ Catalogue  ====
%% |\bytopicref{<anchor>}{<text>}| 
%% \                                                %% 2011/10/21
%% makes <text> a link to <anchor> of J\"urgen Fenn's 
%% Topical Index of the \TeX\ Catalogue. You find the <anchor> 
%% by clicking at the respective \acro{TOC} entry on top of the page 
%% and then read the \URL\ from the browser's navigation display.
\newcommand*{\bytopicref}[1]{% 
    \httpref{mirror.ctan.org/help/Catalogue/bytopic.html\##1}}
%% (Example:\quad `\bytopicref{html}{\acro{HTML}}' \ for \ 
%%  \bytopicref{html}{\acro{HTML}}.)
%%
%% ==== Jim Hefferon's Package Descriptions      ====
%% |\ctanpkgref{<pkg-name>}|
%% makes <text> a link to the \CTAN\ package info page for 
%% the package <pkg-name>. 
%% |\CtanPkgRef{<name>}{<Name>}|
%% is a variant for the cases where authors have a special idea
%% <Name> using some capital letters when they describe their packages
%% (ASCII versions of ``Logos" such as `BibTeX') 
%% while the identifier <name> doesn't allow capital letters.
%% %% 2011/01/24:
%% Also, <Name> may be a package from a \emph{bundle} <name> 
%% where <name> has a description page while <Name> 
%% doesn't have its \emph{own} description page 
%% (such as \CtanPkgRef{nicetext}{makedoc}).
%% %% <- was `fifinddo' 2011/10/20, no with own id.
\newcommand*{\CtanPkgRef}[2]{%
    \httpref{ctan.org/pkg/#1}{\pkgnamefmt{#2}}}
\newcommand*{\ctanpkgref}[1]{\CtanPkgRef{#1}{#1}}
%%
%% === \CTAN\ Announcements ===                 %% 2011/06/27
%% |\ctanannref{<id>}{<text>}| makes <text> a link 
%% to the DANTE web page displaying a \CTAN\ 
%% announcement. You find <id> by searching 
%% \[\texttt{https://lists.dante.de/pipermail/ctan-ann/}\]
%% and then reading the \URL.
%% <id> is composed as `<year>-<month>/<6-digits>.html'.
\newcommand*{\ctanannref}[1]{%
    \httpsref{lists.dante.de/pipermail/ctan-ann/#1}}
%% |\ctanannpref{<id-code>}{<text>}| is a variant 
%% of `\ctanannref' where in place of <id> 
%% you only type the third and fourth digit of the 
%% year, then a `-', then the (arabic) number of 
%% the month, then another `-', and then the actual 
%% internal identifier 
%% (a number of six digits preceding `.html' of the \URL). 
\newcommand*{\ctanannpref}[1]{%
    \ctanannref{\TL@piper@parse#1/.html}}
\def\TL@piper@parse#1-#2-#3/{%
    #1-%
    \ifcase #2\or
        January\or February\or March\or    April\or
            May\or June\or     July\or     August\or
      September\or October\or  November\or December% 2010/12/23
    \fi
    /#3}
%%
%% === \acro{TUG}           ===
%% |\tugref{<path>}{<text>}| makes <text> a link
%% to <path> on domain `tug.org':
\newcommand*{\tugref}[1]{\httpref{tug.org/#1}}
%% ==== texhax ====
%% |\texhaxref{<id>}{<text>}| makes <text> a link 
%% to the \acro{TUG} web page displaying 
%% a texhax posting. You find <id> by searching 
%% `tug.org/pipermail/texhax/' and then reading the \URL.
%% <id> is composed as `<year>-<month>/<6-digits>.html'.
\newcommand*{\texhaxref}[1]{\tugref{pipermail/texhax/#1}}
%% |\THref{<id>}| saves you from choosing <text> 
%% and uses `texhax' instead. 
\newcommand*{\THref}[1]{\texhaxref{#1}{texhax}}
%% (It was `\prg{texhax}' in 'blog.sty', to have something 
%%  logo-like, without a good idea how to implement it.)
%% 
%% |\texhaxpref{<id-code>}{<text>}| is a variant 
%% of `\texhaxref' where in place of <id> 
%% you only type the third and fourth digit of the 
%% year, then a `-', then the (arabic) number of 
%% the month, then another `-', and then the actual 
%% internal identifier 
%% (a number of six digits preceding `.html' of the \URL). 
%% I made this macro because I prefer typing to copying 
%% from the \URL. 
\newcommand*{\texhaxpref}[1]{%              %% 2010/09/07
    \texhaxref{20\TL@piper@parse#1/.html}}  %% 2011/05/03
%% TODO: `\texhaxPref#1' searches list of offsets 
%%       to determine year/month from id
%% 
%% ==== Other  ====
%% %% 2011/04/27 corr. doc. vol/issue
%% |\tugbartref{tb<vol>-<issue>/<filename-base>}{<text>}| 
%% makes <text> a link to the TUGboat article 
%% `<filename-base>.pdf' in vol.~<vol> and issue~<issue>:
% \newcommand*{\tugbartref}[1]{\tugref{TUGboat/Articles/#1.pdf}}
\newcommand*{\tugbartref}[1]{\tugref{TUGboat/#1.pdf}}
%% %% <- 2011/04/30
%% |\TUGIref{<anchor>}{<text>}| makes text a link to an <anchor> 
%% on the \acro{TUG} web page entitled \qtd{TeX Resources on the Web}
%% (e.g., \TUGIref{web}{\qtd{Web Projects}}):
\newcommand*{\TUGIref}[1]{\tugref{interest.html\##1}}
%%
%% === \acro{UK FAQ}        ===
%% |\ukfaqref{<label>}{<text>}| makes <text> a link to 
%% the UK~\TeX~FAQ page with ``label"~= <label>:
\newcommand*{\ukfaqref}[1]{\httpref{%
    www.tex.ac.uk/cgi-bin/texfaq2html?label=#1}}
%% === Wikibooks            ===
%% |\wikibooks{<language-code>}{<file>}{<text>}|:
\newcommand*{\wikibooksref}[2]{\httpref{#1.wikibooks.org/wiki/#2}}
%% |\latexwikibookref{<file>}{<subject>}{<text>}| refers to the 
%% (English) \LaTeX\ Wikibook:
\newcommand*{\latexwikibookref}[1]{\wikibooksref{en}{LaTeX/#1}}
%% The German 
%% \wikibooksref{de}{LaTeX-Kompendium}{\dqtd{\LaTeX-Kompendium}}
%% is somewhat difficult, I leave it for now~...
%%
%% == Leaving      ==                           %% 2011/01/24
\endinput
%%
%% == VERSION HISTORY ==
v0.1    2011/01/24  new file, code from blog.sty v0.3
v0.2    2011/01/27  \urlfoot, \NormalHTTPref, \foothttpurlref,
                    "outline" adjusted; 
                    more consistent use of \newcommand and 
                    \@ifdefinable (TODO: guarded \let)
v0.3    2011/02/10  [blog]; \urlpkgfoot
v0.4    2011/04/27  doc. \tugbartref\ corrected
        2011/04/30  shortened link in \tugbartref 
        2011/05/03  \TL@piper@parse, tried \ctanannref
        2011/05/13  reworking Wikipedia, arbitrary languages 
        2011/06/27  doc.: \acro; \httpsref, \ctanannref 
        2011/07/23  doc.: typo \acro{TUG}, `Almost all', page breaks; 
                    \Wikidisambref: different order of arg.s
        2011/08/18  doc.: \acro with UK; wikibooks
        2011/08/27  doc. \acro with URL and PDF; 
                    more doc and code changes for https
uploaded with MOREHYPE r0.4 (not touched by r0.41)
v0.41   2011/09/03  doc.: more specific on \urluml/Wikipedia
        2011/10/06  \mirrorctanref, \tugctanfileref, 
                    \mirrorctanfileref, \ltxcontrib
        2011/10/10  doc. formatting of previous
uploaded with MOREHYPE r0.5(1)
v0.5    2011/10/19  doc. fix LaTeX Wikibook
        2011/10/20  \urlfmt, \filenamefmt and \pkgnamefmt
                    changed and moved, modified doc. on them, 
                    doc. uses \URL
        2011/10/21  re-order CTAN, \pagebreak's, \ctanref and 
                    choice for it, doc. modified; rm. \ithttpref