CTAN sync 202301100301

13 files changed, 29 insertions, 1313 deletions

diff --git a/macros/latex/contrib/bibcop/DEPENDS.txt b/macros/latex/contrib/bibcop/DEPENDS.txt
deleted file mode 100644
index 32acfffc04..0000000000
--- a/macros/latex/contrib/bibcop/DEPENDS.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-hard iexec
-hard pgfopts
diff --git a/macros/latex/contrib/bibcop/LICENSE.txt b/macros/latex/contrib/bibcop/LICENSE.txt
deleted file mode 100644
index 4351be233c..0000000000
--- a/macros/latex/contrib/bibcop/LICENSE.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-(The MIT License)
-
-Copyright (c) 2022-2023 Yegor Bugayenko
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the 'Software'), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/macros/latex/contrib/bibcop/README.md b/macros/latex/contrib/bibcop/README.md
deleted file mode 100644
index 471c4dcdcb..0000000000
--- a/macros/latex/contrib/bibcop/README.md
+++ /dev/null
@@ -1,64 +0,0 @@
-<img src="https://raw.githubusercontent.com/yegor256/bibcop/master/bibcop-logo.svg" height="92px"/>
-
-[![l3build](https://github.com/yegor256/bibcop/actions/workflows/l3build.yml/badge.svg)](https://github.com/yegor256/bibcop/actions/workflows/l3build.yml)
-[![CTAN](https://img.shields.io/ctan/v/bibcop)](https://ctan.org/pkg/bibcop)
-[![License](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/yegor256/bibcop/blob/master/LICENSE.txt)
-
-This LaTeX package checks the quality of your `.bib` file and
-emits warning message if any issues are found. You may also like
-[biblint](https://github.com/Kingsford-Group/biblint) and
-[biblatex-check](https://github.com/pezmc/biblatex-check) tools —
-they do _almost_ the same but from the command line.
-
-First, [install it](https://en.wikibooks.org/wiki/LaTeX/Installing_Extra_Packages)
-from [CTAN](https://ctan.org/pkg/bibcop)
-and then use in the preamble (if you use BibTeX, for example):
-
-```tex
-\documentclass{article}
-\usepackage{bibcop}
-\begin{document}
-\bibliographystyle{plain}
-\bibliography{main}
-\end{document}
-```
-
-Otherwise, you can download [`bibcop.sty`](https://raw.githubusercontent.com/yegor256/bibcop/gh-pages/bibcop/bibcop.sty) and add to your project (together with [`bibcop.pl`](https://raw.githubusercontent.com/yegor256/bibcop/master/bibcop.pl)!).
-
-You can also download [`bibcop.pl`](https://raw.githubusercontent.com/yegor256/bibcop/master/bibcop.pl)
-and use it as a command line tool
-to check your `.bib` files and to auto-fix them
-(you should have [Perl](https://www.perl.org) installed):
-
-```
-$ perl bibcop.pl --fix main.bib > fixed.bib
-```
-
-This command will read the `main.bib` file and create `fixed.bib`, which
-will have the fixed and properly formatted content (well, to some extent).
-
-If you install the package using [`tlmgr`](https://www.tug.org/texlive/tlmgr.html),
-you should be able to use `bibcop` directly, without the necessity to mention Perl:
-
-```
-$ tlgmr install bibcop
-$ bibcop --help
-```
-
-## How to Contribute
-
-If you want to contribute yourself, make a fork, then create a branch, 
-then run `l3build ctan` in the root directory.
-It should compile everything without errors. If not, submit an issue and wait.
-Otherwise, make your changes and then run `l3build ctan` again. If the build is
-still clean, submit a pull request.
-
-If you want to add a new check, add it as a Perl subroutine to the `bibcop.pl` file.
-Don't forget to add a test to one of the test files that stay in the `perl-tests/` directory.
-When ready, run this, in order to check that all tests pass:
-
-```bash
-$ perl tests.pl
-```
-
-You should see the `GREAT!` message.
\ No newline at end of file
diff --git a/macros/latex/contrib/bibcop/bibcop-logo.pdf b/macros/latex/contrib/bibcop/bibcop-logo.pdf
deleted file mode 100644
index 497d52dc0b..0000000000
--- a/macros/latex/contrib/bibcop/bibcop-logo.pdf
+++ /dev/null
diff --git a/macros/latex/contrib/bibcop/bibcop.1 b/macros/latex/contrib/bibcop/bibcop.1
deleted file mode 100644
index 4e45ba6c02..0000000000
--- a/macros/latex/contrib/bibcop/bibcop.1
+++ /dev/null
@@ -1,30 +0,0 @@
-.TH bibcop 1 "2023-01-08"
-.SH NAME
-bibcop \- Style Checker and Fixer of BibTeX Files (.bib)
-.SH SYNOPSIS
-bibcop [<options>] <.bib file path>
-.SH DESCRIPTION
-The bibcop tool is a Perl script for checking the quality of BibTeX bibliograph
-files (.bib) and automatically fixing found inconsistencies. It is not only
-a command line tool, but a LaTeX package, which can check the quality
-of a .bib file during the rendering of a LaTeX document. All found
-issues are reported as LaTeX warnings.
-.SH OPTIONS
-Various options apply:
-.IP --version
-Print the version of the tool
-.IP --help
-Print the introduction screen
-.IP --fix
-Autho-fix all issues and print a new content to the console
-.IP --latex
-Print everything in LaTeX format
-.IP --verbose
-Print debugging information too
-.SH AUTHOR
-Yegor Bugayenko (yegor256@gmail.com)
-.SH BUGS
-Please log issues on the GitHub homepage:
-https://github.com/yegor256/bibcop/issues.
-.SH SEE ALSO
-See bibcop.pdf for more details.
diff --git a/macros/latex/contrib/bibcop/bibcop.dtx b/macros/latex/contrib/bibcop/bibcop.dtx
deleted file mode 100644
index d084f00961..0000000000
--- a/macros/latex/contrib/bibcop/bibcop.dtx
+++ /dev/null
@@ -1,471 +0,0 @@
-% \iffalse meta-comment
-% (The MIT License)
-%
-% Copyright (c) 2022-2023 Yegor Bugayenko
-%
-% Permission is hereby granted, free of charge, to any person obtaining a copy
-% of this software and associated documentation files (the 'Software'), to deal
-% in the Software without restriction, including without limitation the rights
-% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-% copies of the Software, and to permit persons to whom the Software is
-% furnished to do so, subject to the following conditions:
-%
-% The above copyright notice and this permission notice shall be included in all
-% copies or substantial portions of the Software.
-%
-% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-% SOFTWARE.
-% \fi
-
-% \CheckSum{0}
-%
-% \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{bibcop.dtx}
-% \DoNotIndex{\endgroup,\begingroup,\let,\else,\s,\n,\r,\\,\1,\fi}
-
-% \iffalse
-%<*driver>
-\ProvidesFile{bibcop.dtx}
-%</driver>
-%<package>\NeedsTeXFormat{LaTeX2e}
-%<package>\ProvidesPackage{bibcop}
-%<*package>
-[2023-01-08 0.0.6 Style Checker of Bibliography Files]
-%</package>
-%<*driver>
-\documentclass{ltxdoc}
-\usepackage[T1]{fontenc}
-\usepackage[maxnames=1,minnames=1,maxbibnames=1,natbib=true,citestyle=authoryear,bibstyle=authoryear,doi=false,url=false,isbn=false,isbn=false]{biblatex}
-\addbibresource{bibcop.bib}
-\usepackage[tt=false, type1=true]{libertine}
-\usepackage{microtype}
-\AddToHook{env/verbatim/begin}{\microtypesetup{protrusion=false}}
-\usepackage{href-ul}
-\usepackage{xcolor}
-\usepackage{graphicx}
-\PageIndex
-\EnableCrossrefs
-\CodelineIndex
-\RecordChanges
-\begin{document}
-  \DocInput{bibcop.dtx}
-  \PrintChanges
-  \PrintIndex
-\end{document}
-%</driver>
-% \fi
-
-% \title{\includegraphics[height=1in]{bibcop-logo.pdf} \\ |bibcop|: \LaTeX{} Package \\ for Style Checking of |.bib| Files\thanks{The sources are in GitHub at \href{https://github.com/yegor256/bibcop}{yegor256/bibcop}}}
-% \author{Yegor Bugayenko \\ \texttt{yegor256@gmail.com}}
-% \date{\filedate, \fileversion}
-%
-% \maketitle
-%
-% \textbf{\color{red}NB!}
-% You must run \TeX{} processor with |--shell-escape| option
-% and you must have \href{https://www.perl.org}{Perl} installed.
-% This package doesn't work on Windows.
-
-% \section{Introduction}
-%
-% This package scans a |.bib| file for style errors and emits
-% warning messages if any issues are found (the package must be included before
-% all other bibliography related packages):
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-\documentclass{article}
-\usepackage{bibcop}
-\begin{document}
-\bibliographystyle{plain}
-\bibliography{main}
-\end{document}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% Some warnings may be printed in the \TeX{} log.
-% Once the issues in the |main.bib| file are fixed, the warnings disappear.
-
-% Bibcop doesn't pay much attention the formatting of the |.bib| file. It doesn't emit
-% warnings if a comma is missed after the last tag in a \BibTeX{} entry or the tags
-% and their equation symbols are not aligned. Instead, Bibcop is focused on the content
-% of the tags and their possible inconsistencies.
-
-% If the |.sty| file is used directly (without installing it into the \TeX{} tree),
-% the |bibcop.pl| file must also be placed next to it --- it is the Perl script that does all the work
-% of checking your |.bib| files. The |.sty| is just a simple wrapper around it.
-
-% The |\usepackage{bibcop}| must stay right after |\usepackage{biblatex}|
-% (if Bib\LaTeX{} is used), otherwise
-% there won't be any warnings from |bibcop|.
-
-% \section{Package Options}
-
-% It's possible to configure the behavior of the package with the help of a few package options:
-
-% \DescribeMacro{verbose}
-% The |verbose| package option prints all debugging messages to the \TeX{} log:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-\usepackage[verbose]{bibcop}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{script}
-% The package depends on the |bibcop.pl| file, which is a Perl script that does all the work. This file is supposed to be located either in the current directory or in the |texmf-dist/scripts/bibcop/| directory. Using the |script| option the location of the script may be explicitly defined (it is not recommended to use this option unless there is a special demand for it):
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-\usepackage[script=my-perl-script.pl]{bibcop}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \section{The Rules}
-
-% This is a more or less complete list of rules enforced on a |.bib| file:
-
-% \DescribeMacro{types}
-% Only |@article|, |@book|, |@inproceedings|, and |@misc| types of \BibTeX{} entries are allowed.
-% Everything else, like |@manual|, |@phdthesis|, and many others are simply prohibited.
-% The mentioned four should be enough for everything.
-
-% \DescribeMacro{tags}
-% There are pretty limited lists of allowed tags for each type of \BibTeX{} entry. The tags
-% that are not in the list are prohibited to use.
-
-% \DescribeMacro{doi}
-% Every \BibTeX{} entry must have the |doi| tag, which is a unique
-% \href{https://www.doi.org}{Digital Object Identifier}
-% of the material that you reference. It seems to be a good practice, in order to avoid ambiguity,
-% to always mention the DOI.
-% It also recommended to use the \href{https://ctan.org/pkg/iexec}{doi} package,
-% in order to make all ``|doi|'' fields turned into hyper links.
-
-% \DescribeMacro{caps}
-% In the |title|, |booktitle|, and |journal| tags, all major words must be capitalized,
-% as it is \href{https://apastyle.apa.org/style-grammar-guidelines/capitalization/title-case}{recommended} by APA:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-title = {A Preliminary Architecture for a Basic Data-Flow Processor}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% Here, the leading ``|A|'' is capital because it opens the title.
-% The word ``|for|'' and the article ``|a|'' are minor words, that's why they are in lower case.
-% Both parts of the composite word ``|Data-Flow|'' are capitalized.
-% Sometimes this rule may need to be violated, when there is custom capitalization, as it is done
-% by the author of the paper. In order to do this, the words with custom capitalization
-% must be wrapped in curled brackets, for example:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-title = {Structured Programming {with} Go {To} Statements}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{author}
-% The |author| must contain a list of authors separated by ``|and|''. Each author
-% must have two parts separated by a comma. The first part is the last name of the author,
-% the second part is a list of their first names separated by a space, for example:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-author = {Knuth, Donald E. and Duane, Bibby}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% When the list of authors is too long, it's possible to say ``|and others|'':
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-author = {Knuth, Donald E. and others}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% When first names are shortened to a single letter, it has to have a tailing dot.
-% A specially pronounced author may be wrapped it in curled brackets, to make Bibcop ignore it:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-author = {{Some author} and {I}}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{shorts}
-% It is not allowed to shorten any words aside from the |author| tag, for example this is illegal:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-journal = {J. Log. Comput.}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% This must be replaced with the following:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-journal = {Journal of Logic and Computation}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{brackets}
-% The |title|, |booktitle|, and |journal| must be wrapped in double brackets, for example:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-title = {{A Survey of Symbolic Execution Techniques}}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% This is necessary in order to prevent down-casing of capitalized words, which is done by some
-% bibliography styles.
-
-% \DescribeMacro{year}
-% It is not allowed to mention the year inside the title of a conference or a journal, for example,
-% this would be illegal:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-booktitle = {{1994 IEEE International Conference on Computer Languages}},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-% The year should only be mentioned in the |year| tag, nowhere else.
-% In the |year| tag only numbers are allowed:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-year = {1994},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{month}
-% The |month| may contain only a number:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-month = {12},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{volume}
-% The |volume| may contain only a number:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-volume = {32},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{number}
-% The |number| may contain only a number:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-number = {132},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{pages}
-% The |pages| may contain either a number or two numbers separated by a double dash:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-pages = {145--163},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{proceedings}
-% The |booktitle| in the |@inproceedings| entry must always start with ``|Proceedings| |of| |the|'',
-% as in this example:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-booktitle = {{Proceedings of the International
-  Conference on Computer Languages}},
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{arXiv}
-% If the |archivePrefix| is present, the |eprint| and the |primaryClass| must also be present and must adhere to the formatting principles of \href{https://arxiv.org/help/arxiv_identifier}{arXiv identifiers}:
-%\iffalse
-%<*verb>
-%\fi
-\begin{verbatim}
-@misc{bugayenko2021,
-  archivePrefix = {arXiv},
-  eprint = {2111.13384},
-  primaryClass = {cs.PL},
-}
-\end{verbatim}
-%\iffalse
-%</verb>
-%\fi
-
-% \DescribeMacro{typography}
-% All tags in each \BibTeX{} entry are checked for obeying the basic typography rules:
-% \begin{itemize}
-%   \item No spaces are allowed in front of a comma, a semi-colon, a colon, a dot, a question mark, and an exclamation mark;
-%   \item A text may not end with a dot, a comma, a semi-colon, a colon, or a dash;
-%   \item A triple dash must be surrounded by spaces.
-% \end{itemize}
-
-% \StopEventually{}
-
-% \section{Implementation}
-% \changes{0.0.1}{2022/12/11}{First draft.}
-% \changes{0.0.2}{2022/12/12}{Documentation extended, more rules added.}
-% \changes{0.0.4}{2022/12/14}{Extra checks for the typography, together with more extensive Perl testing.}
-% \changes{0.0.4}{2022/12/14}{The \texttt{--verbose} option introduced, to enable debugging information only on demand.}
-% \changes{0.0.4}{2022/12/15}{Package options introduced, the \texttt{verbose} option enables detailed logging inside the \TeX{} log.}
-% \changes{0.0.6}{2023/01/08}{The \texttt{script} package option introduced, to enable explicit configuration of the location of the \texttt{bibcop.pl} Perl script.}
-
-% First, we include a few packages.
-% We need \href{https://ctan.org/pkg/iexec}{iexec} for executing Perl scripts:
-%    \begin{macrocode}
-\RequirePackage{iexec}
-%    \end{macrocode}
-
-% Then, we process package options:
-%    \begin{macrocode}
-\RequirePackage{pgfopts}
-\pgfkeys{
-  /bibcop/.cd,
-  verbose/.store in=\bibcop@verbose,
-  script/.store in = \bibcop@script,
-}
-\ProcessPgfPackageOptions{/bibcop}
-%    \end{macrocode}
-
-% \begin{macro}{bibcop.pl}
-% Then, we find the Perl script:
-%    \begin{macrocode}
-\makeatletter
-\ifdefined\bibcop@script\else
-  \IfFileExists{bibcop.pl}
-    {\gdef\bibcop@script{perl ./bibcop.pl}}
-    {\gdef\bibcop@script{bibcop}}
-\fi
-\message{bibcop: The Perl script is at '\bibcop@script'^^J}%
-\makeatother
-%    \end{macrocode}
-% \end{macro}
-
-% \begin{macro}{\bibliography}
-% Then, we re-define the |\bibliography| command:
-%    \begin{macrocode}
-\makeatletter
-\ifdefined\bibliography
-  \let\bibcop@oldbibliography\bibliography
-  \renewcommand\bibliography[1]{%
-    \iexec{\bibcop@script\space
-      \ifdefined\bibcop@verbose--verbose\fi\space
-      --latex '#1.bib'}%
-    \message{bibcop: style checking finished^^J}%
-    \bibcop@oldbibliography{#1}%
-  }
-\fi
-\makeatother
-%    \end{macrocode}
-% \end{macro}
-
-% \begin{macro}{\addbibresource}
-% Then, we re-define the |\addbibresource| command:
-%    \begin{macrocode}
-\makeatletter
-\ifdefined\addbibresource
-  \let\bibcop@oldaddbibresource\addbibresource
-  \renewcommand\addbibresource[1]{%
-    \iexec{\bibcop@script\space
-      \ifdefined\bibcop@verbose--verbose\fi\space
-      --latex '#1'}%
-    \message{bibcop: style checking finished^^J}%
-    \bibcop@oldaddbibresource{#1}%
-  }
-\fi
-\makeatother
-%    \end{macrocode}
-% \end{macro}
-
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-
-% \Finale
-
-% \clearpage
-% \printbibliography
-% \clearpage
-
-% \PrintChanges
-% \clearpage
-% \PrintIndex
diff --git a/macros/latex/contrib/bibcop/bibcop.ins b/macros/latex/contrib/bibcop/bibcop.ins
deleted file mode 100644
index d0ea50f43c..0000000000
--- a/macros/latex/contrib/bibcop/bibcop.ins
+++ /dev/null
@@ -1,55 +0,0 @@
-%% (The MIT License)
-%%
-%% Copyright (c) 2022-2023 Yegor Bugayenko
-%%
-%% Permission is hereby granted, free of charge, to any person obtaining a copy
-%% of this software and associated documentation files (the 'Software'), to deal
-%% in the Software without restriction, including without limitation the rights
-%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-%% copies of the Software, and to permit persons to whom the Software is
-%% furnished to do so, subject to the following conditions:
-%%
-%% The above copyright notice and this permission notice shall be included in all
-%% copies or substantial portions of the Software.
-%%
-%% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-%% SOFTWARE.
-
-\input docstrip.tex
-\keepsilent
-\usedir{macros/latex/contrib/bibcop}
-\preamble
-(The MIT License)
-
-Copyright (c) 2022-2023 Yegor Bugayenko
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the 'Software'), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-\endpreamble
-\generate{\file{bibcop.sty}{\from{bibcop.dtx}{package}}}
-\obeyspaces
-\Msg{To finish the installation you have to move the ".sty"}
-\Msg{file into a directory searched by TeX. To produce the}
-\Msg{documentation run the file ".dtx" through LaTeX. If any}
-\Msg{questions, submit a new GitHub issue.}
-\endbatchfile
diff --git a/macros/latex/contrib/bibcop/bibcop.pdf b/macros/latex/contrib/bibcop/bibcop.pdf
deleted file mode 100644
index 1971661357..0000000000
--- a/macros/latex/contrib/bibcop/bibcop.pdf
+++ /dev/null
diff --git a/macros/latex/contrib/bibcop/bibcop.pl b/macros/latex/contrib/bibcop/bibcop.pl
deleted file mode 100755
index 3deda06e45..0000000000
--- a/macros/latex/contrib/bibcop/bibcop.pl
+++ /dev/null
@@ -1,635 +0,0 @@
-#!/usr/bin/perl
-# (The MIT License)
-#
-# Copyright (c) 2022-2023 Yegor Bugayenko
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the 'Software'), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-package bibcop;
-
-use warnings;
-use strict;
-
-# Hash of incoming command line arguments.
-my %args = map { $_ => 1 } @ARGV;
-
-# If you want to add an extra check, just create a new procedure
-# named as "check_*".
-
-# Only these tags are allowed and only these types of entries.
-my %blessed = (
-  'article' => ['doi', 'year', 'title', 'author', 'journal', 'volume', 'number', 'publisher?', 'pages?'],
-  'inproceedings' => ['doi', 'booktitle', 'title', 'author', 'year', 'pages?', 'organization?', 'volume?'],
-  'book' => ['doi', 'title', 'author', 'year', 'publisher'],
-  'misc' => ['title', 'author', 'year', 'eprint?', 'archiveprefix?', 'primaryclass?', 'publisher?', 'organization?', 'doi?', 'url?'],
-);
-
-# Check the presence of mandatory tags.
-sub check_mandatory_tags {
-  my (%entry) = @_;
-  my $type = $entry{':type'};
-  my $mandatory = $blessed{$type};
-  foreach my $tag (@$mandatory) {
-    if ($tag =~ /^.*\?$/) {
-      next;
-    }
-    if (not(exists $entry{$tag})) {
-      my $listed = listed_tags(%entry);
-      return "A mandatory '$tag' tag for '\@$type' is missing among $listed"
-    }
-  }
-  if (exists $blessed{$type}) {
-    my %required = map { $_ => 1 } @$mandatory;
-    foreach my $tag (keys %entry) {
-      if ($tag =~ /^:/) {
-        next;
-      }
-      if (not(exists $required{$tag}) && not(exists $required{$tag . '?'})) {
-        return "The '$tag' tag is not suitable for '$type', use only these: (@$mandatory)"
-      }
-    }
-  }
-}
-
-# Check that all major words are capitalized.
-sub check_capitalization {
-  my (%entry) = @_;
-  my %tags = map { $_ => 1 } qw/title booktitle journal publisher organization/;
-  my %minors = map { $_ => 1 } qw/in of at to by the a an and or as if up via yet nor but off on for into/;
-  foreach my $tag (keys %entry) {
-    if (not exists $tags{$tag}) {
-      next;
-    }
-    my $value = $entry{$tag};
-    my @words = only_words($value);
-    my $pos = 0;
-    foreach my $word (@words) {
-      if (not $word =~ /^[A-Za-z]/) {
-        next;
-      }
-      $pos = $pos + 1;
-      if (exists $minors{$word}) {
-        next;
-      }
-      if (exists $minors{lc($word)} and $pos gt 1) {
-        return "All minor words in the '$tag' must be lower-cased, while '$word' (no.$pos) is not"
-      }
-      if ($word =~ /^[a-z].*/) {
-        return "All major words in the '$tag' must be capitalized, while '$word' (no.$pos) is not"
-      }
-    }
-  }
-}
-
-# Check that the 'author' is formatted correctly.
-sub check_author {
-  my (%entry) = @_;
-  if (exists $entry{'author'} and not $entry{'author'} =~ /^\{.+\}$/) {
-    my $author = clean_tex($entry{'author'});
-    if (not $author =~ /^[A-Z][^ ]+(,( [A-Z][^ ]+)+)?( and [A-Z][^ ]+(,( [A-Z][^ ]+)+)?)*( and others)?$/) {
-      return "The format of the 'author' is wrong, use something like 'Knuth, Donald E. and Duane, Bibby'"
-    }
-    if ($author =~ /.*[A-Z]([ ,]|$).*/) {
-      return "A shortened name must have a tailing dot, as in 'Knuth, Donald E.'"
-    }
-  }
-}
-
-# Check that titles don't have shortened words with a tailing dot.
-sub check_shortenings {
-  my (%entry) = @_;
-  my %tags = map { $_ => 1 } qw/title booktitle journal/;
-  foreach my $tag (keys %entry) {
-    if (not exists $tags{$tag}) {
-      next;
-    }
-    my $value = $entry{$tag};
-    my @words = only_words($value);
-    foreach my $word (@words) {
-      if (not $word =~ /^[A-Za-z]/) {
-        next;
-      }
-      if ($word =~ /^.*\.$/) {
-        return "Do not shorten the words in the '$tag', such as '$word'"
-      }
-    }
-  }
-}
-
-# Check the right format of the 'title' and 'booktitle.'
-sub check_titles {
-  my (%entry) = @_;
-  my @tags = qw/title booktitle/;
-  foreach my $tag (@tags) {
-    if (not exists($entry{$tag})) {
-      next;
-    }
-    my $title = $entry{$tag};
-    if (not $title =~ /^\{.+\}$/) {
-      return "The '$tag' must be wrapped in double curled brackets"
-    }
-  }
-}
-
-# Check the right format of the tags for arXiv.
-# See https://arxiv.org/help/arxiv_identifier
-sub check_arXiv {
-  my (%entry) = @_;
-  if (exists($entry{'archiveprefix'})) {
-    if (not exists $entry{'eprint'}) {
-      return "The 'eprint' is mandatory when 'archiveprefix' is there"
-    }
-    if (not $entry{'eprint'} =~ /^[0-9]{4}\.[0-9]{4,5}(v[0-9]+)?$/) {
-      return "The 'eprint' must have two integers separated by a dot"
-    }
-    my $eprint = $entry{'eprint'};
-    my ($head, $tail) = split(/\./, $eprint);
-    my $year = substr($head, 0, 2);
-    my $month = substr($head, 2);
-    if ($month > 12) {
-      return "The month '$month' of the 'eprint' is wrong, it can't be bigger than 12"
-    }
-    if (not exists $entry{'primaryclass'}) {
-      return "The 'primaryclass' is mandatory when 'archiveprefix' is there"
-    }
-    if (not $entry{'primaryclass'} =~ /^[a-z]{2,}\.[A-Z]{2}$/) {
-      return "The 'primaryclass' must have two parts, like 'cs.PL'"
-    }
-  }
-}
-
-# Check that organization is not mentioned in the booktitle.
-sub check_org_in_booktitle {
-  my (%entry) = @_;
-  my @orgs = ( 'ACM', 'IEEE' );
-  if (exists($entry{'booktitle'})) {
-    my $title = $entry{'booktitle'};
-    foreach my $o (@orgs) {
-      if ($title =~ /^.*\Q$o\E.*$/) {
-        return "The '$o' organization must not be mentioned in the booktitle, use 'publisher' tag instead"
-      }
-    }
-    if ($title =~ /^.*(ACM|IEEE).*$/) {
-      return "Don't mention the"
-    }
-  }
-}
-
-# Check that no values have tailing dots.
-# Check that there are no spaces before commans.
-sub check_typography {
-  my (%entry) = @_;
-  my %symbols = (
-    '.' => 'dot',
-    ',' => 'comma',
-    ';' => 'semi-colon',
-    ':' => 'colon',
-    '!' => 'exclamation mark',
-    '?' => 'question mark',
-    '-' => 'dash',
-    '--' => 'double dash',
-    '---' => 'triple dash',
-  );
-  my @spaces_around = ( '---' );
-  my @no_spaces_around = ( '--', '-' );
-  my @no_space_before = ( '.', ',', ';', ':', '?', '!' );
-  my @bad_tails = ( '.', ',', ';', ':', '-' );
-  foreach my $tag (keys %entry) {
-    if ($tag =~ /^:.*/) {
-      next;
-    }
-    my $value = $entry{$tag};
-    foreach my $s (@bad_tails) {
-      if ($s eq '.' and $tag eq 'author') {
-        next;
-      }
-      if ($value =~ /^.*\Q$s\E$/) {
-        return "The '$tag' must not end with a $symbols{$s}"
-      }
-    }
-    foreach my $s (@no_space_before) {
-      if ($value =~ /^.*\s\Q$s\E.*$/) {
-        return "In the '$tag', do not put a space before a $symbols{$s}"
-      }
-    }
-    foreach my $s (@spaces_around) {
-      if ($value =~ /^.*[^\s]\Q$s\E.*$/ or $value =~ /^.*\Q$s\E[^\s].*$/) {
-        return "In the '$tag', put spaces around a $symbols{$s}"
-      }
-    }
-    foreach my $s (@no_spaces_around) {
-      if ($value =~ /^.*\s\Q$s\E\s.*$/) {
-        return "In the '$tag', don't put spaces around a $symbols{$s}"
-      }
-    }
-  }
-}
-
-# Check the year is not mentioned in titles.
-sub check_year_in_titles {
-  my (%entry) = @_;
-  my @tags = qw/title booktitle journal/;
-  foreach my $tag (@tags) {
-    if (not exists($entry{$tag})) {
-      next;
-    }
-    my @words = only_words($entry{$tag});
-    foreach my $word (@words) {
-      if ($word =~ /^[1-9][0-9]{3}$/) {
-        return "The '$tag' must not contain the year $word, it is enough to have the 'year' tag"
-      }
-    }
-  }
-}
-
-# Check the right format of the 'booktitle' in the 'inproceedings' entry.
-sub check_booktile_of_inproceedings {
-  my (%entry) = @_;
-  my $tag = 'inproceedings';
-  if ($entry{':type'} eq $tag) {
-    if (exists $entry{'booktitle'}) {
-      my @words = only_words($entry{'booktitle'});
-      if (lc($words[0]) ne 'proceedings' or lc($words[1]) ne 'of' or lc($words[2]) ne 'the') {
-        return "The '$tag' must start with 'Proceedings of the ...'"
-      }
-    }
-  }
-}
-
-# Check the right format of the 'doi.'
-sub check_doi {
-  my (%entry) = @_;
-  if (exists $entry{'doi'}) {
-    my $doi = $entry{'doi'};
-    if (not $doi =~ /^[0-9a-zA-Z.]+\/[0-9a-zA-Z._\-)(]+$/) {
-      return "The format of the 'doi' is wrong"
-    }
-  }
-}
-
-# Check the right format of the 'year.'
-sub check_year {
-  my (%entry) = @_;
-  if (exists $entry{'year'}) {
-    my $year = $entry{'year'};
-    if (not $year =~ /^[0-9]{3,4}$/) {
-      return "The format of the 'year' is wrong"
-    }
-  }
-}
-
-# Check the right format of the 'month.'
-sub check_month {
-  my (%entry) = @_;
-  if (exists $entry{'month'}) {
-    my $month = $entry{'month'};
-    if (not $month =~ /^[1-9]|10|11|12$/) {
-      return "The format of the 'month' is wrong"
-    }
-  }
-}
-
-# Check the right format of the 'volume.'
-sub check_volume {
-  my (%entry) = @_;
-  if (exists $entry{'volume'}) {
-    my $volume = $entry{'volume'};
-    if (not $volume =~ /^[1-9][0-9]*$/) {
-      return "The format of the 'volume' is wrong"
-    }
-  }
-}
-
-# Check the right format of the 'number.'
-sub check_number {
-  my (%entry) = @_;
-  if (exists $entry{'number'}) {
-    my $number = $entry{'number'};
-    if (not $number =~ /^[1-9][0-9]*$/) {
-      return "The format of the 'number' is wrong"
-    }
-  }
-}
-
-# Check the right format of the 'pages.'
-sub check_pages {
-  my (%entry) = @_;
-  if (exists $entry{'pages'}) {
-    my $pages = $entry{'pages'};
-    if (not $pages =~ /^([1-9][0-9]*--[1-9][0-9]*|[1-9][0-9]*)$/) {
-      return "The format of the 'pages' is wrong"
-    }
-    my @parts = split(/--/, $pages);
-    if (@parts+0 eq 2) {
-      if ($parts[0] eq $parts[1]) {
-        return "The 'pages' mentions the same page twice, just use it once"
-      }
-      if ($parts[0] gt $parts[1]) {
-        return "The 'pages' are in the wrong order"
-      }
-    }
-  }
-}
-
-# Check unescaped symbols.
-sub check_unescaped_symbols {
-  my (%entry) = @_;
-  my @symbols = ( '&' );
-  foreach my $tag (keys %entry) {
-    if ($tag =~ /^:.*/) {
-      next;
-    }
-    my $value = $entry{$tag};
-    foreach my $s (@symbols) {
-      if ($value =~ /^(.*[^\\{]|)\Q$s\E.*$/) {
-        return "The '$tag' contains a dangerous unescaped symbol (wrap it in curled brackets if you really need it)"
-      }
-    }
-  }
-}
-
-# Check one entry.
-sub process_entry {
-  my (%entry) = @_;
-  my @checks;
-  foreach my $entry (keys %bibcop::) {
-    if ($entry =~ /^check_/) {
-      push(@checks, $entry);
-    }
-  }
-  my @sorted = sort @checks;
-  my @errors;
-  foreach my $check (@sorted) {
-    no strict 'refs';
-    my $err = $check->(%entry);
-    if ($err ne '') {
-      push(@errors, $err);
-    }
-  }
-  return @errors;
-}
-
-# Parse the incoming .bib file and return an array
-# of hash-maps, where each one is a bibentry.
-sub entries {
-  my ($bib) = @_;
-  my @entries;
-  my $s = 'top';
-  my %entry;
-  my $acc = '';
-  my $tag = '';
-  my $lineno = 0;
-  my $nest = 0;
-  my $escape = 0;
-  for my $pos (0..length($bib)-1) {
-    my $char = substr($bib, $pos, 1);
-    if ($char eq ' ') {
-      # ignore the white space
-    } elsif ($char eq "\n") {
-      # ignore the EOL
-      $lineno = $lineno + 1;
-    } elsif ($s eq 'top') {
-      if ($char eq '@') {
-        %entry = ();
-        $s = 'start';
-        $acc = '';
-      } else {
-        warning("Each BibTeX entry must start with '\@', what is '$char'?");
-        last;
-      }
-    } elsif ($char =~ /[a-z]/ and $s eq 'start') {
-      # @article
-    } elsif ($char eq '{' and $s eq 'start') {
-      $entry{':type'} = substr($acc, 1);
-      $acc = '';
-      $s = 'body';
-    } elsif ($char =~ /[a-zA-Z]/ and $s eq 'body') {
-      $acc = '';
-      $s = 'tag';
-    } elsif ($char =~ /[a-zA-Z0-9_]/ and $s eq 'tag') {
-      # reading the tag
-    } elsif ($char =~ /[a-zA-Z0-9]/ and $s eq 'value') {
-      # reading the value without quotes or brackets
-    } elsif ($char eq ',' and $s eq 'tag') {
-      $entry{':name'} = $acc;
-      $s = 'body';
-    } elsif ($char eq '=' and $s eq 'tag') {
-      my $t = lc($acc);
-      if (exists $entry{$t}) {
-        warning("The tag '$t' is seen more than once");
-      }
-      $tag = $t;
-      $s = 'value';
-      $acc = '';
-    } elsif ($char eq ',' and $s eq 'value') {
-      if (not exists $entry{$tag}) {
-        my $tex = substr($acc, 1);
-        $tex =~ s/\s//g;
-        $entry{$tag} = $tex;
-      }
-      $s = 'body';
-    } elsif ($char eq '}' and $s eq 'body') {
-      push(@entries, { %entry });
-      $s = 'top';
-    } elsif ($char eq '}' and $s eq 'value') {
-      if (not exists $entry{$tag}) {
-        my $tex = substr($acc, 1);
-        $tex =~ s/\s//g;
-        $entry{$tag} = $tex;
-      }
-      push(@entries, { %entry });
-      $s = 'top';
-    } elsif ($char eq '}' and $s eq 'tag') {
-      $entry{':name'} = $acc;
-      push(@entries, { %entry });
-      $s = 'top';
-    } elsif ($char eq '"' and $s eq 'value') {
-      $s = 'quote';
-      $acc = '';
-    } elsif ($char eq '"' and $s eq 'quote') {
-      $entry{$tag} = substr($acc, 1);
-      $s = 'value';
-    } elsif ($s eq 'quote') {
-      # nothing
-    } elsif ($char eq '{' and $s eq 'value') {
-      $nest = 1;
-      $s = 'brackets';
-      $acc = '';
-    } elsif ($s eq 'brackets') {
-      if ($char eq '\\') {
-        $escape = 1;
-      } elsif ($char eq '{' and $escape ne 1) {
-        $nest = $nest + 1;
-      } elsif ($char eq '}' and $escape ne 1) {
-        $nest = $nest - 1;
-        if ($nest eq 0) {
-          $entry{$tag} = substr($acc, 1);
-          $s = 'value';
-        }
-      }
-      $escape = 0;
-    } else {
-      warning("It is impossible to parse the .bib file, because I do not know what to do with '$char' at line #$lineno (s=$s)");
-      last;
-    }
-    if ($char eq ' ' and not($s =~ /quote|brackets/)) {
-      next;
-    }
-    $acc = $acc . $char;
-  }
-  return @entries;
-}
-
-# Takes the text and returns only list of words seen there.
-sub only_words {
-  my ($tex) = @_;
-  return split(/[ \-]/, clean_tex($tex));
-}
-
-# Take a TeX string and return a cleaner one, without redundant spaces, brackets, etc.
-sub clean_tex {
-  my ($tex) = @_;
-  $tex =~ s/\s+/ /g;
-  $tex =~ s/^\s+//g;
-  $tex =~ s/\s+$//g;
-  while ($tex =~ s/^\{(.+)\}$/$1/g) {};
-  return $tex;
-}
-
-# Take a bibentry and print all its tags as a comma-separated string.
-sub listed_tags {
-  my (%entry) = @_;
-  my @list;
-  foreach my $tag (keys %entry) {
-    if ($tag =~ /^:.*/) {
-      next;
-    }
-    push(@list, $tag);
-  }
-  my @sorted = sort @list;
-  return '(' . join(', ', @sorted) . ')';
-}
-
-# Print ERROR message to the console and die.
-sub error {
-  my ($txt) = @_;
-  if (exists $args{'--latex'}) {
-    print "\\PackageError{bibcop}{$txt}{}\n";
-    exit 0;
-  } else {
-    print STDERR $txt . "\n";
-    exit 1;
-  }
-}
-
-# Print DEBUG message to the console.
-sub debug {
-  my ($txt) = @_;
-  if (exists $args{'--verbose'}) {
-    if (exists $args{'--latex'}) {
-      print "\\message{bibcop: $txt^^J}\n";
-    } else {
-      print $txt . "\n";
-    }
-  }
-}
-
-# Print INFO message to the console.
-sub info {
-  my ($txt) = @_;
-  if (exists $args{'--latex'}) {
-    print '% ';
-  }
-  print $txt . "\n";
-}
-
-# Print INFO message to the console.
-sub warning {
-  my ($txt) = @_;
-  if (exists $args{'--latex'}) {
-    print "\\PackageWarningNoLine{bibcop}{$txt}\n";
-  } else {
-    print $txt . "\n";
-  }
-}
-
-if (@ARGV+0 eq 0 or exists $args{'--help'} or exists $args{'-?'}) {
-  info("Bibcop is a Style Checker of BibTeX Files\n\n" .
-    "Usage:\n" .
-    "  bibcop [<options>] <.bib file path>\n\n" .
-    "Options:\n" .
-    "  -v, --version   Print the current version of the tool and exit\n" .
-    "  -?, --help      Print this help screen\n" .
-    "      --fix       Fix the errors and print a new version of the .bib file to the console\n" .
-    "      --verbose   Print supplementary debugging information\n" .
-    "      --latex     Report errors in LaTeX format using \\PackageWarningNoLine command\n\n" .
-    "If any issues, report to GitHub: https://github.com/yegor256/bibcop");
-} elsif (exists $args{'--version'} or exists $args{'-v'}) {
-  info('0.0.6');
-} else {
-  my ($file) = grep { not($_ =~ /^--.*$/) } @ARGV;
-  if (not $file) {
-    error('File name must be specified');
-  }
-  open(my $fh, '<', $file) or error('Cannot open file: ' . $file);
-  my $bib; { local $/; $bib = <$fh>; }
-  my @entries = entries($bib);
-  if (exists $args{'--fix'}) {
-    for my $i (0..(@entries+0 - 1)) {
-      my %entry = %{ $entries[$i] };
-      my $type = $entry{':type'};
-      if (not exists $blessed{$type}) {
-        error("I don't know what to do with \@$type type of BibTeX entry");
-      }
-      my $tags = $blessed{$entry{':type'}};
-      my %allowed = map { $_ => 1 } @$tags;
-      my @lines;
-      foreach my $tag (keys %entry) {
-        if ($tag =~ /^:/) {
-          next;
-        }
-        if (not exists $allowed{$tag} and not exists $allowed{$tag . '?'}) {
-          next;
-        }
-        my $value = clean_tex($entry{$tag});
-        if ($tag =~ /title|booktitle|journal/) {
-          $value = '{' . $value . '}';
-        }
-        push(@lines, "  $tag = {$value},");
-      }
-      info("\@$type\{$entry{':name'},");
-      my @sorted = sort @lines;
-      foreach my $line (@sorted) {
-        info($line);
-      }
-      info("}\n");
-    }
-  } else {
-    debug((@entries+0) . ' entries found in ' . $file);
-    for my $i (0..(@entries+0 - 1)) {
-      my %entry = %{ $entries[$i] };
-      debug("Checking $entry{':name'} (no.$i)...");
-      foreach my $err (process_entry(%entry)) {
-        warning("$err, in the '$entry{':name'}' entry");
-      }
-    }
-  }
-}
-
-1;
diff --git a/macros/latex/contrib/langnames/README.md b/macros/latex/contrib/langnames/README.md
index 6e4c098571..45f6684635 100644
--- a/macros/latex/contrib/langnames/README.md
+++ b/macros/latex/contrib/langnames/README.md
@@ -8,6 +8,6 @@ More instructions in the package documentation, `langnames.pdf`.
 
 It is important that the ln_* .tex files be installed in the same directory as langnames.sty, so as to avoid the risk of them not being recognized as runtime files.
 
-_Copyright (C) 2022 Alejandro García Matarredona, निरंजन_
+_Copyright (C) 2022, 2023 Alejandro García Matarredona, निरंजन_
 
 _Released under version 1.3 of the LaTeX Project Public License._ 
diff --git a/macros/latex/contrib/langnames/langnames.dtx b/macros/latex/contrib/langnames/langnames.dtx
index 9da83dc943..0323733849 100644
--- a/macros/latex/contrib/langnames/langnames.dtx
+++ b/macros/latex/contrib/langnames/langnames.dtx
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright (C) 2022 Alejandro García Matarredona, निरंजन
+% Copyright (C) 2022, 2023 Alejandro García Matarredona, निरंजन
 %
 % This file may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either
@@ -15,7 +15,7 @@
 % \fi
 % \iffalse
 %<package>\ProvidesPackage{langnames}
-%<package> [2022/09/05 v2.0 langnames package for naming and classification of languages]
+%<package> [2023/01/04 v2.1 langnames package for naming and classification of languages]
 %
 %<*driver>
 \documentclass{l3doc}
@@ -35,7 +35,7 @@
   unicode,%
   colorlinks=true,%
   urlcolor=blue,%
-  pdftitle={The linguistix package},%
+  pdftitle={The langnames package},%
   pdfauthor={Alejandro García Matarredona, निरंजन},%
   pdfsubject={The documentation of the LaTeX package `langnames'},%
   pdfcreator={निरंजन},%
@@ -57,9 +57,10 @@
 \end{document}
 %</driver>
 % \fi
-% \CheckSum{100}
+% \CheckSum{103}
 % \changes{v1.0}{2022/08/25}{Initial version}
 % \changes{v2.0}{2022/09/05}{Optimizing and debugging the code}
+% \changes{v2.1}{2023/01/04}{Removing all the dependencies}
 % \GetFileInfo{langnames.sty}
 % \DoNotIndex{\AddToHook,\def,\ekvdefinekeys,\ekvoProcessLocalOptions,\else,\expandafter,\fi,\ifdefined,\csname,\newcommand,\input,\usepackage,\PackageError,\space,\ssp,\MessageBreak,\langnames@cs@prefix,\endcsname}
 % \title{The \textsf{langnames} package\thanks{This document
@@ -81,7 +82,7 @@
 % The typing out of language names in academic papers, especially those in language typology or related fields where many names have to be typed many times, is often inconvenient and inconsistent. This package attempts to be a small help to writers, especially of large projects or of collaborative ones, to have a slightly easier time with names of languages. It does so by defining three main commands: |\lname|, |\liso|, and |\lfam|, which respectively print out the name, name and ISO 639-3 code, and name and family of the specified language. While the package comes with about 7500 pre-defined languages, with code, name, and family, the user may also define new ones through the |\newlang| and |\renewlang| commands. The basic use of all five of these commands is explained below.
 % \section{Usage}
 % \subsection{Installation}
-% Download the package from wherever it was found to a place where \LaTeX\ may see it, typically in \texttt{\$TEXMFHOME/tex/latex}. \pkg{langnames} should automatically load the \pkg{expkv-opt} and \pkg{expkv-def} packages.
+% Download the package from wherever it was found to a place where \LaTeX\ may see it, typically in \texttt{\$TEXMFHOME/tex/latex}.
 % \subsection{Package options}
 % When calling |\usepackage{langnames}|, the user must specify one of three options: |glottolog|, |wals|, or |none|.
 % The first option, \textsf{glottolog}, selects the naming conventions from the \href{https://glottolog.org}{Glottolog} database. The second option, \textsf{wals}, predictably selects the naming conventions of the \href{https://wals.info}{WALS} database. The names and the genetic classification differ in some languages, so the user may choose what convention to follow.
@@ -235,37 +236,30 @@
 % \item[Prefix:] As there exist three options, three prefixes need to be defined in order to allow for conditional selection. For this there exist three prefixes: |none|, |wals| and |glottolog|.
 % \end{description}
 % Thus, each language has two internal macros, one defining its name and the other one defining its family, both using the ISO 639-3 code as their key. For more information see |ln_langs_*| and |ln_fams_*| files in the package folder.
-% \subsection{Dependencies}
-% The \pkg{langnames} package needs to load the \pkg{expkv-def} and \pkg{expkv-opt} packages for their key-value pair setting functionality.
-%    \begin{macrocode}
-\usepackage{expkv-opt,expkv-def}
-%    \end{macrocode}
 % \subsection{Option setting}
 % Options are set for what dataset to use. |glottolog| uses Glottolog data; |wals| uses WALS data; |none| selects neither datasets and all languages are defined by the user. See |langnames/langnames.py| in the \href{https://github.com/cicervlvs/langnames}{Github repository} to see how I gathered and handled the data.
 %    \begin{macrocode}
-\ekvdefinekeys{langnames}{%
-  noval glottolog       =  {%
-    \def\langnames@cs@prefix{glottolog}%
-    \input{ln_langs_glot.tex}%
-    \input{ln_fams_glot.tex}%
-  },%
-  noval wals            =  {%
-    \def\langnames@cs@prefix{wals}%
-    \input{ln_langs_wals.tex}%
-    \input{ln_fams_wals.tex}%
-  },%
-  noval none            =  {%
-    \def\langnames@cs@prefix{none}%
-  },%
-  noval native          =  {%
-    \input{ln_langs_wals_native.tex}%
-    \input{ln_langs_glot_native.tex}%
-  }%
+\DeclareOption{glottolog}{%
+  \def\langnames@cs@prefix{glottolog}%
+  \input{ln_langs_glot.tex}%
+  \input{ln_fams_glot.tex}%
+}
+\DeclareOption{wals}{%
+  \def\langnames@cs@prefix{wals}%
+  \input{ln_langs_wals.tex}%
+  \input{ln_fams_wals.tex}%
+}
+\DeclareOption{none}{%
+  \def\langnames@cs@prefix{none}%
+}
+\DeclareOption{native}{%
+  \input{ln_langs_wals_native.tex}%
+  \input{ln_langs_glot_native.tex}%
 }
 %    \end{macrocode}
-% This line of code simply tells the package to set the options specified above.
+% This line of code simply tells the package to process the options specified above.
 %    \begin{macrocode}
-\ekvoProcessLocalOptions{langnames}
+\ProcessOptions\relax
 %    \end{macrocode}
 % \subsection{Macro definitions}
 % \begin{macro}{\lname}
@@ -373,7 +367,7 @@
 %
 % \section{License}
 %
-% Copyright (C) 2022 Alejandro García Matarredona, {\mrtxt निरंजन}
+% Copyright (C) 2022, 2023 Alejandro García Matarredona, {\mrtxt निरंजन}
 % 
 % This file may be distributed and/or modified under the conditions of the LaTeX\ Project Public License, either version 1.3 of this license or (at your option) any later version. The latest version of this license is in:\par
 %
@@ -382,4 +376,4 @@
 % and version 1.3 or later is part of all distributions of \LaTeX\ version 2005/12/01 or later.
 % 
 % \Finale
-\endinput
+\endinput
\ No newline at end of file
diff --git a/macros/latex/contrib/langnames/langnames.ins b/macros/latex/contrib/langnames/langnames.ins
index 626efde68d..9888f56e59 100644
--- a/macros/latex/contrib/langnames/langnames.ins
+++ b/macros/latex/contrib/langnames/langnames.ins
@@ -19,7 +19,7 @@
 
 \preamble
 This is a generated file.
-Copyright (C) 2022 by Alejandro García Matarredona
+Copyright (C) 2022, 2023 Alejandro García Matarredona, निरंजन
 This file may be distributed and/or modified under the
 conditions of the LaTeX Project Public License, either
 version 1.3 of this license or (at your option) any later
@@ -46,4 +46,4 @@ LaTeX version 2005/12/01 or later.
 \Msg{* *}
 \Msg{****************************************************}
 
-\endbatchfile
+\endbatchfile
\ No newline at end of file
diff --git a/macros/latex/contrib/langnames/langnames.pdf b/macros/latex/contrib/langnames/langnames.pdf
index acf701fe1d..61c4ce548f 100644
--- a/macros/latex/contrib/langnames/langnames.pdf
+++ b/macros/latex/contrib/langnames/langnames.pdf