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+% \iffalse meta-comment
+%
+% Copyright 1989-2008 Johannes L. Braams and any individual authors
+% listed elsewhere in this file. All rights reserved.
+%
+% This file is part of the Babel system.
+% --------------------------------------
+%
+% It 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
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2003/12/01 or later.
+%
+% This work has the LPPL maintenance status "maintained".
+%
+% The Current Maintainer of this work is Johannes Braams.
+%
+% The list of all files belonging to the Babel system is
+% given in the file `manifest.bbl. See also `legal.bbl' for additional
+% information.
+%
+% The list of derived (unpacked) files belonging to the distribution
+% and covered by LPPL is defined by the unpacking scripts (with
+% extension .ins) which are part of the distribution.
+% \fi
+% \CheckSum{1142}
+%
+% \iffalse
+% Tell the \LaTeX\ system who we are and write an entry on the
+% transcript.
+%<*dtx>
+\ProvidesFile{czech.dtx}
+%</dtx>
+%<+code>\ProvidesLanguage{czech}
+%\fi
+%\ProvidesFile{czech.dtx}
+ [2008/07/06 v3.1a Czech support from the babel system]
+%\iffalse
+%% File `czech.dtx'
+%% Babel package for LaTeX version 2e
+%% Copyright (C) 1989 - 2008
+%% by Johannes Braams, TeXniek
+%
+%% Copyright (C) 2005, 2008
+%% by Petr Tesa\v r\'ik (babel at tesarici.cz)
+%%
+%% Czech Language Definition File
+% This file is also based on CSLaTeX
+% by Ji\v r\'i Zlatu\v ska, Zden\v ek Wagner,
+% Jaroslav \v Snajdr and Petr Ol\v s\'ak.
+%
+%% Please report errors to: Petr Tesa\v r\'ik
+%% babel at tesarici.cz
+%
+% This file is part of the babel system, it provides the source
+% code for the Czech language definition file.
+%<*filedriver>
+\documentclass{ltxdoc}
+\newcommand*\TeXhax{\TeX hax}
+\newcommand*\babel{\textsf{babel}}
+\newcommand*\langvar{$\langle \it lang \rangle$}
+\newcommand*\note[1]{}
+\newcommand*\Lopt[1]{\textsf{#1}}
+\newcommand*\file[1]{\texttt{#1}}
+\begin{document}
+ \DocInput{czech.dtx}
+\end{document}
+%</filedriver>
+%\fi
+%
+% \def\CS{$\cal C\kern-.1667em
+% \lower.5ex\hbox{$\cal S$}\kern-.075em$}
+%
+% \GetFileInfo{czech.dtx}
+%
+% \changes{czech-1.0a}{1991/07/15}{Renamed babel.sty in babel.com}
+% \changes{czech-1.1}{1992/02/15}{Brought up-to-date with babel 3.2a}
+% \changes{czech-1.2}{1993/07/11}{Included some features from Kasal's
+% czech.sty}
+% \changes{czech-1.3}{1994/02/27}{Update for \LaTeXe}
+% \changes{czech-1.3d}{1994/06/26}{Removed the use of \cs{filedate}
+% and moved identification after the loading of \file{babel.def}}
+% \changes{czech-1.3h}{1996/10/10}{Replaced \cs{undefined} with
+% \cs{@undefined} and \cs{empty} with \cs{@empty} for consistency
+% with \LaTeX, moved the definition of \cs{atcatcode} right to the
+% beginning.}
+% \changes{czech-3.0}{2005/09/10}{Implemented the functionality of
+% \CS\LaTeX's czech.sty. The version number was bumped to 3.0
+% to minimize confusion by being higher than the last version
+% of \CS\LaTeX.}
+%
+% \section{The Czech Language}
+%
+% The file \file{\filename}\footnote{The file described in this
+% section has version number \fileversion\ and was last revised on
+% \filedate. It was rewritten by Petr Tesa\v r\'ik
+% (\texttt{babel@tesarici.cz}).} defines all the language definition
+% macros for the Czech language. It is meant as a replacement of
+% \CS\LaTeX, the most-widely used standard for typesetting Czech
+% documents in \LaTeX.
+%
+% \subsection{Usage}
+% For this language |\frenchspacing| is set.
+%
+% Additionally, two macros are defined |\q| and |\w| for easy
+% access to two accents are defined.
+%
+% The command |\q| is used with the letters (\texttt{t},
+% \texttt{d}, \texttt{l}, and \texttt{L}) and adds a \texttt{'} to
+% them to simulate a `hook' that should be there. The result looks
+% like t\kern-2pt\char'47. The command |\w| is used to put the
+% ring-accent which appears in \aa ngstr\o m over the letters
+% \texttt{u} and \texttt{U}.
+%
+% \subsection{Compatibility}
+%
+% Great care has been taken to ensure backward compatibility with
+% \CS\LaTeX. In particular, documents which load this file with
+% |\usepackage{czech}| should produce identical output with no
+% modifications to the source. Additionally, all the \CS\LaTeX{}
+% options are recognized:
+%
+% \label{tab:czech-options}
+% \begin{list}{}
+% {\def\makelabel#1{\sbox0{\Lopt{#1}}%
+% \ifdim\wd0>\labelwidth
+% \setbox0\vbox{\box0\hbox{}} \wd0=0pt \fi
+% \box0\hfil}
+% \setlength{\labelwidth}{2\parindent}
+% \setlength{\leftmargin}{2\parindent}
+% \setlength{\rightmargin}{\parindent}}
+% \item[IL2, T1, OT1]
+% These options set the default font encoding. Please note
+% that their use is deprecated. You should use the |fontenc|
+% package to select font encoding.
+%
+% \item[split, nosplit]
+% These options control whether hyphenated words are
+% automatically split according to Czech typesetting rules.
+% With the \Lopt{split} option ``je-li'' is hyphenated as
+% ``je-/-li''. The \Lopt{nosplit} option disables this behavior.
+%
+% The use of this option is strongly discouraged, as it breaks
+% too many common things---hyphens cannot be used in labels,
+% negative arguments to \TeX{} primitives will not work in
+% horizontal mode (use \cs{minus} as a workaround), and there are
+% a few other peculiarities with using this mode.
+%
+% \item[nocaptions]
+%
+% This option was used in \CS\LaTeX{} to set up Czech/Slovak
+% typesetting rules, but leave the original captions and dates.
+% The recommended way to achieve this is to use English as the main
+% language of the document and use the environment |otherlanguage*|
+% for Czech text.
+%
+% \item[olduv]
+% There are two version of \cs{uv}. The older one allows the use
+% of \cs{verb} inside the quotes but breaks any respective kerning
+% with the quotes (like that in \CS{} fonts). The newer one honors
+% the kerning in the font but does not allow \cs{verb} inside the
+% quotes.
+%
+% The new version is used by default in \LaTeXe{} and the old version
+% is used with plain \TeX. You may use \Lopt{olduv} to override the
+% default in \LaTeXe.
+%
+% \item[cstex]
+% This option was used to include the commands \cs{csprimeson} and
+% \cs{csprimesoff}. Since these commands are always included now,
+% it has been removed and the empty definition lasts for compatibility.
+% \end{list}
+%
+% \StopEventually{}
+%
+% \subsection{Implementation}
+%
+% The macro |\LdfInit| takes care of preventing that this file is
+% loaded more than once, checking the category code of the
+% \texttt{@} sign, etc.
+% \changes{czech-1.3h}{1996/11/02}{Now use \cs{LdfInit} to perform
+% initial checks}
+% \begin{macrocode}
+%<*code>
+\LdfInit\CurrentOption{date\CurrentOption}
+% \end{macrocode}
+%
+% When this file is read as an option, i.e. by the |\usepackage|
+% command, \texttt{czech} might be an `unknown' language in which
+% case we have to make it known. So we check for the existence of
+% |\l@czech| to see whether we have to do something here.
+%
+% \changes{czech-1.0b}{1991/10/27}{Removed use of \cs{@ifundefined}}
+% \changes{czech-1.1}{1992/02/15}{Added a warning when no hyphenation
+% patterns were loaded.}
+% \changes{czech-1.3d}{1994/06/26}{Now use \cs{@nopatterns} to produce
+% the warning}
+% \begin{macrocode}
+\ifx\l@czech\@undefined
+ \@nopatterns{Czech}
+ \adddialect\l@czech0\fi
+% \end{macrocode}
+%
+% We need to define these macros early in the process.
+%
+% \begin{macrocode}
+\def\cs@iltw@{IL2}
+\newif\ifcs@splithyphens
+\cs@splithyphensfalse
+% \end{macrocode}
+%
+% If Babel is not loaded, we provide compatibility with \CS\LaTeX.
+% However, if macro \cs{@ifpackageloaded} is not defined, we assume
+% to be loaded from plain and provide compatibility with csplain.
+% Of course, this does not work well with \LaTeX$\:$2.09, but I
+% doubt anyone will ever want to use this file with \LaTeX$\:$2.09.
+%
+% \begin{macrocode}
+\ifx\@ifpackageloaded\@undefined
+ \let\cs@compat@plain\relax
+ \message{csplain compatibility mode}
+\else
+ \@ifpackageloaded{babel}{}{%
+ \let\cs@compat@latex\relax
+ \message{cslatex compatibility mode}}
+\fi
+\ifx\cs@compat@latex\relax
+ \ProvidesPackage{czech}[2008/07/06 v3.1a CSTeX Czech style]
+% \end{macrocode}
+%
+% Declare \CS\LaTeX{} options (see also the descriptions on page
+% \pageref{tab:czech-options}).
+%
+% \begin{macrocode}
+ \DeclareOption{IL2}{\def\encodingdefault{IL2}}
+ \DeclareOption {T1}{\def\encodingdefault {T1}}
+ \DeclareOption{OT1}{\def\encodingdefault{OT1}}
+ \DeclareOption{nosplit}{\cs@splithyphensfalse}
+ \DeclareOption{split}{\cs@splithyphenstrue}
+ \DeclareOption{nocaptions}{\let\cs@nocaptions=\relax}
+ \DeclareOption{olduv}{\let\cs@olduv=\relax}
+ \DeclareOption{cstex}{\relax}
+% \end{macrocode}
+%
+% Make |IL2| encoding the default. This can be overriden with
+% the other font encoding options.
+% \begin{macrocode}
+ \ExecuteOptions{\cs@iltw@}
+% \end{macrocode}
+%
+% Now, process the user-supplied options.
+% \begin{macrocode}
+ \ProcessOptions
+% \end{macrocode}
+%
+% Standard \LaTeXe{} does not include the IL2 encoding in the format.
+% The encoding can be loaded later using the fontenc package, but
+% \CS\LaTeX{} included IL2 by default. This means existing documents
+% for \CS\LaTeX{} do not load that package, so load the encoding
+% ourselves in compatibility mode.
+%
+% \begin{macrocode}
+ \ifx\encodingdefault\cs@iltw@
+ \input il2enc.def
+ \fi
+% \end{macrocode}
+%
+% Restore the definition of \cs{CurrentOption}, clobbered by processing
+% the options.
+%
+% \begin{macrocode}
+ \def\CurrentOption{czech}
+\fi
+% \end{macrocode}
+%
+% The next step consists of defining commands to switch to (and
+% from) the Czech language.
+%
+% \begin{macro}{\captionsczech}
+% The macro \cs{captionsczech} defines all strings used in the four
+% standard documentclasses provided with \LaTeX.
+%
+% \changes{czech-1.1}{1992/02/15}{Added \cs{seename}, \cs{alsoname}
+% and \cs{prefacename}}
+% \changes{czech-1.3f}{1995/07/04}{Added \cs{proofname} for AMS-\LaTeX}
+% \changes{czech-1.3g}{1996/02/12}{Fixed two errors and provided
+% translation for `proof'}
+% \changes{czech-1.3j}{2000/09/19}{Added \cs{glossaryname}}
+% \changes{czech-1.3k}{2004/02/18}{Added translation for Glossary}
+% \changes{czech-3.0}{2005/11/25}{Updated some translations. Former
+% translations were: `Dodatek' for \cs{appendixname} and `Index'
+% for \cs{indexname}. Also removed spurious colon at the end of
+% \cs{ccname}.}
+%
+% \begin{macrocode}
+\@namedef{captions\CurrentOption}{%
+ \def\prefacename{P\v{r}edmluva}%
+ \def\refname{Reference}%
+ \def\abstractname{Abstrakt}%
+ \def\bibname{Literatura}%
+ \def\chaptername{Kapitola}%
+ \def\appendixname{P\v{r}\'{\i}loha}%
+ \def\contentsname{Obsah}%
+ \def\listfigurename{Seznam obr\'azk\r{u}}%
+ \def\listtablename{Seznam tabulek}%
+ \def\indexname{Rejst\v{r}\'{\i}k}%
+ \def\figurename{Obr\'azek}%
+ \def\tablename{Tabulka}%
+ \def\partname{\v{C}\'ast}%
+ \def\enclname{P\v{r}\'{\i}loha}%
+ \def\ccname{Na v\v{e}dom\'{\i}}%
+ \def\headtoname{Komu}%
+ \def\pagename{Strana}%
+ \def\seename{viz}%
+ \def\alsoname{viz tak\'e}%
+ \def\proofname{D\r{u}kaz}%
+ \def\glossaryname{Slovn\'{\i}k}%
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\dateczech}
+% The macro \cs{dateczech} redefines the command \cs{today}
+% to produce Czech dates.
+%
+% \CS\LaTeX{} allows line break between the day and the month.
+% However, this behavior has been agreed upon to be a bad thing by
+% the csTeX mailing list in December 2005 and has not been adopted.
+%
+% \changes{czech-1.3i}{1997/10/01}{Use \cs{edef} to define \cs{today}
+% to save memory}
+% \changes{czech-1.3i}{1998/03/28}{Use \cs{def} instead of \cs{edef}}
+% \begin{macrocode}
+\@namedef{date\CurrentOption}{%
+ \def\today{\number\day.~\ifcase\month\or ledna\or \'unora\or
+ b\v{r}ezna\or dubna\or kv\v{e}tna\or \v{c}ervna\or \v{c}ervence\or
+ srpna\or z\'a\v{r}\'\i\or \v{r}\'{\i}jna\or listopadu\or
+ prosince\fi \space\number\year}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\extrasczech}
+% \begin{macro}{\noextrasczech}
+% The macro |\extrasczech| will perform all the extra definitions
+% needed for the Czech language. The macro |\noextrasczech| is used
+% to cancel the actions of |\extrasczech|. This means saving the
+% meaning of two one-letter control sequences before defining them.
+%
+% For Czech texts \cs{frenchspacing} should be in effect. Language
+% group for shorthands is also set here.
+% \changes{czech-1.3e}{1995/03/14}{now use \cs{bbl@frenchspacing} and
+% \cs{bbl@nonfrenchspacing}}
+% \changes{czech-3.1}{2006/10/07}{move \cs{languageshorthands} here,
+% so that the language group is always initialized correctly}
+% \begin{macrocode}
+\expandafter\addto\csname extras\CurrentOption\endcsname{%
+ \bbl@frenchspacing
+ \languageshorthands{czech}}
+\expandafter\addto\csname noextras\CurrentOption\endcsname{%
+ \bbl@nonfrenchspacing}
+% \end{macrocode}
+%
+% \changes{czech-1.1a}{1992/07/07}{Removed typo, \cs{q} was restored
+% twice, once too many.}
+% \changes{czech-1.3e}{1995/03/15}{Use \LaTeX's \cs{v} and \cs{r}
+% accent commands}
+% \begin{macrocode}
+\expandafter\addto\csname extras\CurrentOption\endcsname{%
+ \babel@save\q\let\q\v
+ \babel@save\w\let\w\r}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\sq}
+% \begin{macro}{\dq}
+% We save the original single and double quote characters in
+% \cs{sq} and \cs{dq} to make them available later.
+% \begin{macrocode}
+\begingroup\catcode`\"=12\catcode`\'=12
+\def\x{\endgroup
+ \def\sq{'}
+ \def\dq{"}}
+\x
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \changes{czech-3.0}{2005/12/10}{Added default for setting hyphenmin
+% parameters. Values taken from \CS\LaTeX.}
+% This macro is used to store the correct values of the hyphenation
+% parameters |\lefthyphenmin| and |\righthyphenmin|.
+% \begin{macrocode}
+\providehyphenmins{\CurrentOption}{\tw@\thr@@}
+% \end{macrocode}
+%
+% \begin{macro}{\v}
+% \LaTeX's normal |\v| accent places a caron over the letter that
+% follows it (\v{o}). This is not what we want for the letters d,
+% t, l and L; for those the accent should change shape. This is
+% acheived by the following.
+% \begin{macrocode}
+\AtBeginDocument{%
+ \DeclareTextCompositeCommand{\v}{OT1}{t}{%
+ t\kern-.23em\raise.24ex\hbox{'}}
+ \DeclareTextCompositeCommand{\v}{OT1}{d}{%
+ d\kern-.13em\raise.24ex\hbox{'}}
+ \DeclareTextCompositeCommand{\v}{OT1}{l}{\lcaron{}}
+ \DeclareTextCompositeCommand{\v}{OT1}{L}{\Lcaron{}}}
+% \end{macrocode}
+%
+% \begin{macro}{\lcaron}
+% \begin{macro}{\Lcaron}
+% For the letters \texttt{l} and \texttt{L} we want to disinguish
+% between normal fonts and monospaced fonts.
+% \begin{macrocode}
+\def\lcaron{%
+ \setbox0\hbox{M}\setbox\tw@\hbox{i}%
+ \ifdim\wd0>\wd\tw@\relax
+ l\kern-.13em\raise.24ex\hbox{'}\kern-.11em%
+ \else
+ l\raise.45ex\hbox to\z@{\kern-.35em '\hss}%
+ \fi}
+\def\Lcaron{%
+ \setbox0\hbox{M}\setbox\tw@\hbox{i}%
+ \ifdim\wd0>\wd\tw@\relax
+ L\raise.24ex\hbox to\z@{\kern-.28em'\hss}%
+ \else
+ L\raise.45ex\hbox to\z@{\kern-.40em '\hss}%
+ \fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% Initialize active quotes. \CS\LaTeX{} provides a way of
+% converting English-style quotes into Czech-style ones. Both
+% single and double quotes are affected, i.e. |``text''| is
+% converted to something like |,,text``| and |`text'| is converted
+% to |,text`|. This conversion can be switched on and off with
+% \cs{csprimeson} and \cs{csprimesoff}.\footnote{By the way, the
+% names of these macros are misleading, because the handling of
+% primes in math mode is rather marginal, the most important thing
+% being the handling of quotes\ldots}
+%
+% These quotes present various troubles, e.g. the kerning is broken,
+% apostrophes are converted to closing single quote, some primitives
+% are broken (most notably the |\catcode`\|\meta{char} syntax will
+% not work any more), and writing them to \file{.aux} files cannot
+% be handled correctly. For these reasons, these commands are only
+% available in \CS\LaTeX{} compatibility mode.
+%
+% \begin{macrocode}
+\ifx\cs@compat@latex\relax
+ \let\cs@ltxprim@s\prim@s
+ \def\csprimeson{%
+ \catcode`\`\active \catcode`\'\active \let\prim@s\bbl@prim@s}
+ \def\csprimesoff{%
+ \catcode`\`12 \catcode`\'12 \let\prim@s\cs@ltxprim@s}
+ \begingroup\catcode`\`\active
+ \def\x{\endgroup
+ \def`{\futurelet\cs@next\cs@openquote}
+ \def\cs@openquote{%
+ \ifx`\cs@next \expandafter\cs@opendq
+ \else \expandafter\clq
+ \fi}%
+ }\x
+ \begingroup\catcode`\'\active
+ \def\x{\endgroup
+ \def'{\textormath{\futurelet\cs@next\cs@closequote}
+ {^\bgroup\prim@s}}
+ \def\cs@closequote{%
+ \ifx'\cs@next \expandafter\cs@closedq
+ \else \expandafter\crq
+ \fi}%
+ }\x
+ \def\cs@opendq{\clqq\let\cs@next= }
+ \def\cs@closedq{\crqq\let\cs@next= }
+% \end{macrocode}
+%
+% The way I recommend for typesetting quotes in Czech documents
+% is to use shorthands similar to those used in German.
+%
+% \begin{macrocode}
+\else
+ \initiate@active@char{"}
+ \expandafter\addto\csname extras\CurrentOption\endcsname{%
+ \bbl@activate{"}}
+ \expandafter\addto\csname noextras\CurrentOption\endcsname{%
+ \bbl@deactivate{"}}
+ \declare@shorthand{czech}{"`}{\clqq}
+ \declare@shorthand{czech}{"'}{\crqq}
+ \declare@shorthand{czech}{"<}{\flqq}
+ \declare@shorthand{czech}{">}{\frqq}
+ \declare@shorthand{czech}{"=}{\cs@splithyphen}
+\fi
+% \end{macrocode}
+%
+% \begin{macro}{\clqq}
+% This is the CS opening quote, which is similar to the German
+% quote (\cs{glqq}) but the kerning is different.
+%
+% For the OT1 encoding, the quote is constructed from the right
+% double quote (i.e. the ``Opening quotes'' character) by moving
+% it down to the baseline and shifting it to the right, or to the
+% left if italic correction is positive.
+%
+% For T1, the ``German Opening quotes'' is used. It is moved to
+% the right and the total width is enlarged. This is done in an
+% attempt to minimize the difference between the OT1 and T1
+% versions.
+%
+% \changes{3.0}{2006/04/20}{Added \cs{leavevmode} to allow an opening
+% quote at the beginning of a paragraph}
+% \begin{macrocode}
+\ProvideTextCommand{\clqq}{OT1}{%
+ \set@low@box{\textquotedblright}%
+ \setbox\@ne=\hbox{l\/}\dimen\@ne=\wd\@ne
+ \setbox\@ne=\hbox{l}\advance\dimen\@ne-\wd\@ne
+ \leavevmode
+ \ifdim\dimen\@ne>\z@\kern-.1em\box\z@\kern.1em
+ \else\kern.1em\box\z@\kern-.1em\fi\allowhyphens}
+\ProvideTextCommand{\clqq}{T1}
+ {\kern.1em\quotedblbase\kern-.0158em\relax}
+\ProvideTextCommandDefault{\clqq}{\UseTextSymbol{OT1}\clqq}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\crqq}
+% For OT1, the CS closing quote is basically the same as
+% \cs{grqq}, only the \cs{textormath} macro is not used, because
+% as far as I know, \cs{grqq} does not work in math mode anyway.
+%
+% For T1, the character is slightly wider and shifted to the
+% right to match its OT1 counterpart.
+%
+% \begin{macrocode}
+\ProvideTextCommand{\crqq}{OT1}
+ {\save@sf@q{\nobreak\kern-.07em\textquotedblleft\kern.07em}}
+\ProvideTextCommand{\crqq}{T1}
+ {\save@sf@q{\nobreak\kern.06em\textquotedblleft\kern.024em}}
+\ProvideTextCommandDefault{\crqq}{\UseTextSymbol{OT1}\crqq}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\clq}
+% \begin{macro}{\crq}
+%
+% Single CS quotes are similar to double quotes (see the
+% discussion above).
+%
+% \begin{macrocode}
+\ProvideTextCommand{\clq}{OT1}
+ {\set@low@box{\textquoteright}\box\z@\kern.04em\allowhyphens}
+\ProvideTextCommand{\clq}{T1}
+ {\quotesinglbase\kern-.0428em\relax}
+\ProvideTextCommandDefault{\clq}{\UseTextSymbol{OT1}\clq}
+\ProvideTextCommand{\crq}{OT1}
+ {\save@sf@q{\nobreak\textquoteleft\kern.17em}}
+\ProvideTextCommand{\crq}{T1}
+ {\save@sf@q{\nobreak\textquoteleft\kern.17em}}
+\ProvideTextCommandDefault{\crq}{\UseTextSymbol{OT1}\crq}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\uv}
+% There are two versions of \cs{uv}. The older one opens a group
+% and uses \cs{aftergroup} to typeset the closing quotes. This
+% version allows using \cs{verb} inside the quotes, because the
+% enclosed text is not passed as an argument, but unfortunately
+% it breaks any kerning with the quotes. Although the kerning
+% with the opening quote could be fixed, the kerning with the
+% closing quote cannot.
+%
+% The newer version is defined as a command with one parameter.
+% It preserves kerning but since the quoted text is passed as an
+% argument, it cannot contain \cs{verb}.
+%
+% Decide which version of \cs{uv} should be used. For sake
+% of compatibility, we use the older version with plain \TeX{}
+% and the newer version with \LaTeXe.
+% \begin{macrocode}
+\ifx\cs@compat@plain\@undefined\else\let\cs@olduv=\relax\fi
+\ifx\cs@olduv\@undefined
+ \DeclareRobustCommand\uv[1]{{\leavevmode\clqq#1\crqq}}
+\else
+ \DeclareRobustCommand\uv{\bgroup\aftergroup\closequotes
+ \leavevmode\clqq\let\cs@next=}
+ \def\closequotes{\unskip\crqq\relax}
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\cs@wordlen}
+% Declare a counter to hold the length of the word after the
+% hyphen.
+%
+% \begin{macrocode}
+\newcount\cs@wordlen
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@hyphen}
+% \begin{macro}{\cs@endash}
+% \begin{macro}{\cs@emdash}
+% Store the original hyphen in a macro. Ditto for the ligatures.
+%
+% \changes{czech-3.1}{2006/10/07}{ensure correct catcode for the
+% saved hyphen}
+% \begin{macrocode}
+\begingroup\catcode`\-12
+\def\x{\endgroup
+ \def\cs@hyphen{-}
+ \def\cs@endash{--}
+ \def\cs@emdash{---}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cs@boxhyphen}
+% Provide a non-breakable hyphen to be used when a compound word
+% is too short to be split, i.e. the second part is shorter than
+% \cs{righthyphenmin}.
+%
+% \begin{macrocode}
+ \def\cs@boxhyphen{\hbox{-}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@splithyphen}
+% The macro \cs{cs@splithyphen} inserts a split hyphen, while
+% allowing both parts of the compound word to be hyphenated at
+% other places too.
+%
+% \begin{macrocode}
+ \def\cs@splithyphen{\kern\z@
+ \discretionary{-}{\char\hyphenchar\the\font}{-}\nobreak\hskip\z@}
+}\x
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{-}
+% To minimize the effects of activating the hyphen character,
+% the active definition expands to the non-active character
+% in all cases where hyphenation cannot occur, i.e. if not
+% typesetting (check \cs{protect}), not in horizontal mode,
+% or in inner horizontal mode.
+%
+% \begin{macrocode}
+\initiate@active@char{-}
+\declare@shorthand{czech}{-}{%
+ \ifx\protect\@typeset@protect
+ \ifhmode
+ \ifinner
+ \bbl@afterelse\bbl@afterelse\bbl@afterelse\cs@hyphen
+ \else
+ \bbl@afterfi\bbl@afterelse\bbl@afterelse\cs@firsthyphen
+ \fi
+ \else
+ \bbl@afterfi\bbl@afterelse\cs@hyphen
+ \fi
+ \else
+ \bbl@afterfi\cs@hyphen
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@firsthyphen}
+% \begin{macro}{\cs@firsthyph@n}
+% \begin{macro}{\cs@secondhyphen}
+% \begin{macro}{\cs@secondhyph@n}
+% If we encounter a hyphen, check whether it is followed
+% by a second or a third hyphen and if so, insert the
+% corresponding ligature.
+%
+% If we don't find a hyphen, the token found will be placed
+% in \cs{cs@token} for further analysis, and it will also stay
+% in the input.
+%
+% \begin{macrocode}
+\begingroup\catcode`\-\active
+\def\x{\endgroup
+ \def\cs@firsthyphen{\futurelet\cs@token\cs@firsthyph@n}
+ \def\cs@firsthyph@n{%
+ \ifx -\cs@token
+ \bbl@afterelse\cs@secondhyphen
+ \else
+ \bbl@afterfi\cs@checkhyphen
+ \fi}
+ \def\cs@secondhyphen ##1{%
+ \futurelet\cs@token\cs@secondhyph@n}
+ \def\cs@secondhyph@n{%
+ \ifx -\cs@token
+ \bbl@afterelse\cs@emdash\@gobble
+ \else
+ \bbl@afterfi\cs@endash
+ \fi}
+}\x
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cs@checkhyphen}
+% Check that hyphenation is enabled, and if so, start analyzing
+% the rest of the word, i.e. initialize \cs{cs@word} and \cs{cs@wordlen}
+% and start processing input with \cs{cs@scanword}.
+%
+% \begin{macrocode}
+\def\cs@checkhyphen{%
+ \ifnum\expandafter\hyphenchar\the\font=`\-
+ \def\cs@word{}\cs@wordlen\z@
+ \bbl@afterelse\cs@scanword
+ \else
+ \cs@hyphen
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@scanword}
+% \begin{macro}{\cs@continuescan}
+% \begin{macro}{\cs@gettoken}
+% \begin{macro}{\cs@gett@ken}
+% Each token is first analyzed with \cs{cs@scanword}, which expands
+% the token and passes the first token of the result to
+% \cs{cs@gett@ken}. If the expanded token is not identical to the
+% unexpanded one, presume that it might be expanded further and
+% pass it back to \cs{cs@scanword} until you get an unexpandable
+% token. Then analyze it in \cs{cs@examinetoken}.
+%
+% The \cs{cs@continuescan} macro does the same thing as
+% \cs{cs@scanword}, but it does not require the first token to be
+% in \cs{cs@token} already.
+%
+% \begin{macrocode}
+\def\cs@scanword{\let\cs@lasttoken= \cs@token\expandafter\cs@gettoken}
+\def\cs@continuescan{\let\cs@lasttoken\@undefined\expandafter\cs@gettoken}
+\def\cs@gettoken{\futurelet\cs@token\cs@gett@ken}
+\def\cs@gett@ken{%
+ \ifx\cs@token\cs@lasttoken \def\cs@next{\cs@examinetoken}%
+ \else \def\cs@next{\cs@scanword}%
+ \fi \cs@next}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{cs@examinetoken}
+% Examine the token in \cs{cs@token}:
+%
+% \begin{itemize}
+% \item
+% If it is a letter (catcode 11) or other (catcode 12), add it
+% to \cs{cs@word} with \cs{cs@addparam}.
+%
+% \item
+% If it is the \cs{char} primitive, add it with \cs{cs@expandchar}.
+%
+% \item
+% If the token starts or ends a group, ignore it with
+% \cs{cs@ignoretoken}.
+%
+% \item
+% Otherwise analyze the meaning of the token with
+% \cs{cs@checkchardef} to detect primitives defined with
+% \cs{chardef}.
+%
+% \end{itemize}
+%
+% \begin{macrocode}
+\def\cs@examinetoken{%
+ \ifcat A\cs@token
+ \def\cs@next{\cs@addparam}%
+ \else\ifcat 0\cs@token
+ \def\cs@next{\cs@addparam}%
+ \else\ifx\char\cs@token
+ \def\cs@next{\afterassignment\cs@expandchar\let\cs@token= }%
+ \else\ifx\bgroup\cs@token
+ \def\cs@next{\cs@ignoretoken\bgroup}%
+ \else\ifx\egroup\cs@token
+ \def\cs@next{\cs@ignoretoken\egroup}%
+ \else\ifx\begingroup\cs@token
+ \def\cs@next{\cs@ignoretoken\begingroup}%
+ \else\ifx\endgroup\cs@token
+ \def\cs@next{\cs@ignoretoken\endgroup}%
+ \else
+ \def\cs@next{\expandafter\expandafter\expandafter\cs@checkchardef
+ \expandafter\meaning\expandafter\cs@token\string\char\end}%
+ \fi\fi\fi\fi\fi\fi\fi\cs@next}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@checkchardef}
+% Check the meaning of a token and if it is a primitive defined
+% with \cs{chardef}, pass it to \cs{\cs@examinechar} as if it were
+% a \cs{char} sequence. Otherwise, there are no more word characters,
+% so do the final actions in \cs{cs@nosplit}.
+%
+% \begin{macrocode}
+\expandafter\def\expandafter\cs@checkchardef
+ \expandafter#\expandafter1\string\char#2\end{%
+ \def\cs@token{#1}%
+ \ifx\cs@token\@empty
+ \def\cs@next{\afterassignment\cs@examinechar\let\cs@token= }%
+ \else
+ \def\cs@next{\cs@nosplit}%
+ \fi \cs@next}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@ignoretoken}
+% Add a token to \cs{cs@word} but do not update the \cs{cs@wordlen}
+% counter. This is mainly useful for group starting and ending
+% primitives, which need to be preserved, but do not affect the word
+% boundary.
+%
+% \begin{macrocode}
+\def\cs@ignoretoken#1{%
+ \edef\cs@word{\cs@word#1}%
+ \afterassignment\cs@continuescan\let\cs@token= }
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{cs@addparam}
+% Add a token to \cs{cs@word} and check its lccode. Note that
+% this macro can only be used for tokens which can be passed as
+% a parameter.
+%
+% \begin{macrocode}
+\def\cs@addparam#1{%
+ \edef\cs@word{\cs@word#1}%
+ \cs@checkcode{\lccode`#1}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@expandchar}
+% \begin{macro}{\cs@examinechar}
+% Add a \cs{char} sequence to \cs{cs@word} and check its lccode.
+% The charcode is first parsed in \cs{cs@expandchar} and then the
+% resulting \cs{chardef}-defined sequence is analyzed in
+% \cs{cs@examinechar}.
+%
+% \begin{macrocode}
+\def\cs@expandchar{\afterassignment\cs@examinechar\chardef\cs@token=}
+\def\cs@examinechar{%
+ \edef\cs@word{\cs@word\char\the\cs@token\space}%
+ \cs@checkcode{\lccode\cs@token}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cs@checkcode}
+% Check the lccode of a character. If it is zero, it does not count
+% to the current word, so finish it with \cs{cs@nosplit}. Otherwise
+% update the \cs{cs@wordlen} counter and go on scanning the word
+% with \cs{cs@continuescan}. When enough characters are gathered in
+% \cs{cs@word} to allow word break, insert the split hyphen and
+% finish.
+%
+% \begin{macrocode}
+\def\cs@checkcode#1{%
+ \ifnum0=#1
+ \def\cs@next{\cs@nosplit}%
+ \else
+ \advance\cs@wordlen\@ne
+ \ifnum\righthyphenmin>\the\cs@wordlen
+ \def\cs@next{\cs@continuescan}%
+ \else
+ \cs@splithyphen
+ \def\cs@next{\cs@word}%
+ \fi
+ \fi \cs@next}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@nosplit}
+% Insert a non-breakable hyphen followed by the saved word.
+%
+% \begin{macrocode}
+\def\cs@nosplit{\cs@boxhyphen\cs@word}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@hyphen}
+% The \cs{minus} sequence can be used where the active hyphen
+% does not work, e.g. in arguments to \TeX{} primitives in outer
+% horizontal mode.
+%
+% \begin{macrocode}
+\let\minus\cs@hyphen
+% \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\standardhyphens}
+% \begin{macro}{\splithyphens}
+% These macros control whether split hyphens are allowed in Czech
+% and/or Slovak texts. You may use them in any language, but the
+% split hyphen is only activated for Czech and Slovak.
+%
+% \changes{czech-3.1}{2006/10/07}{activate with split hyphens and
+% deactivate with standard hyphens, not vice versa}
+% \begin{macrocode}
+\def\standardhyphens{\cs@splithyphensfalse\cs@deactivatehyphens}
+\def\splithyphens{\cs@splithyphenstrue\cs@activatehyphens}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cs@splitattr}
+% Now we declare the |split| language attribute. This is
+% similar to the |split| package option of cslatex, but it
+% only affects Czech, not Slovak.
+%
+% \changes{czech-3.1}{2006/10/07}{attribute added}
+% \begin{macrocode}
+\def\cs@splitattr{\babel@save\ifcs@splithyphens\splithyphens}
+\bbl@declare@ttribute{czech}{split}{%
+ \addto\extrasczech{\cs@splitattr}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\cs@activatehyphens}
+% \begin{macro}{\cs@deactivatehyphens}
+% These macros are defined as \cs{relax} by default to prevent
+% activating/deactivating the hyphen character. They are redefined
+% when the language is switched to Czech/Slovak. At that moment
+% the hyphen is also activated if split hyphens were requested with
+% \cs{splithyphens}.
+%
+% When the language is de-activated, de-activate the hyphen and
+% restore the bogus definitions of these macros.
+%
+% \begin{macrocode}
+\let\cs@activatehyphens\relax
+\let\cs@deactivatehyphens\relax
+\expandafter\addto\csname extras\CurrentOption\endcsname{%
+ \def\cs@activatehyphens{\bbl@activate{-}}%
+ \def\cs@deactivatehyphens{\bbl@deactivate{-}}%
+ \ifcs@splithyphens\cs@activatehyphens\fi}
+\expandafter\addto\csname noextras\CurrentOption\endcsname{%
+ \cs@deactivatehyphens
+ \let\cs@activatehyphens\relax
+ \let\cs@deactivatehyphens\relax}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cs@looseness}
+% \begin{macro}{\looseness}
+% One of the most common situations where an active hyphen will not
+% work properly is the \cs{looseness} primitive. Change its definition
+% so that it deactivates the hyphen if needed.
+%
+% \begin{macrocode}
+\let\cs@looseness\looseness
+\def\looseness{%
+ \ifcs@splithyphens
+ \cs@deactivatehyphens\afterassignment\cs@activatehyphens \fi
+ \cs@looseness}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cs@selectlanguage}
+% \begin{macro}{\cs@main@language}
+% Specifying the |nocaptions| option means that captions and dates
+% are not redefined by default, but they can be switched on later
+% with \cs{captionsczech} and/or \cs{dateczech}.
+%
+% We mimic this behavior by redefining \cs{selectlanguage}. This
+% macro is called once at the beginning of the document to set the
+% main language of the document. If this is \cs{cs@main@language},
+% it disables the macros for setting captions and date. In any
+% case, it restores the original definition of \cs{selectlanguage}
+% and expands it.
+%
+% The definition of \cs{selectlanguage} can be shared between Czech
+% and Slovak; the actual language is stored in \cs{cs@main@language}.
+%
+% \begin{macrocode}
+\ifx\cs@nocaptions\@undefined\else
+ \edef\cs@main@language{\CurrentOption}
+ \ifx\cs@origselect\@undefined
+ \let\cs@origselect=\selectlanguage
+ \def\selectlanguage{%
+ \let\selectlanguage\cs@origselect
+ \ifx\bbl@main@language\cs@main@language
+ \expandafter\cs@selectlanguage
+ \else
+ \expandafter\selectlanguage
+ \fi}
+ \def\cs@selectlanguage{%
+ \cs@tempdisable{captions}%
+ \cs@tempdisable{date}%
+ \selectlanguage}
+% \end{macrocode}
+%
+% \begin{macro}{\cs@tempdisable}
+% \cs{cs@tempdisable} disables a language setup macro temporarily,
+% i.e. the macro with the name of \meta{\#1}|\bbl@main@language|
+% just restores the original definition and purges the saved macro
+% from memory.
+%
+% \begin{macrocode}
+ \def\cs@tempdisable#1{%
+ \def\@tempa{cs@#1}%
+ \def\@tempb{#1\bbl@main@language}%
+ \expandafter\expandafter\expandafter\let
+ \expandafter \csname\expandafter \@tempa \expandafter\endcsname
+ \csname \@tempb \endcsname
+ \expandafter\edef\csname \@tempb \endcsname{%
+ \let \expandafter\noexpand \csname \@tempb \endcsname
+ \expandafter\noexpand \csname \@tempa \endcsname
+ \let \expandafter\noexpand\csname \@tempa \endcsname
+ \noexpand\@undefined}}
+% \end{macrocode}
+% \end{macro}
+%
+% These macros are not needed, once the initialization is over.
+%
+% \begin{macrocode}
+ \@onlypreamble\cs@main@language
+ \@onlypreamble\cs@origselect
+ \@onlypreamble\cs@selectlanguage
+ \@onlypreamble\cs@tempdisable
+ \fi
+\fi
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% The encoding of mathematical fonts should be changed to IL2. This
+% allows to use accented letter in some font families. Besides,
+% documents do not use CM fonts if there are equivalents in CS-fonts,
+% so there is no need to have both bitmaps of CM-font and CS-font.
+%
+% \cs{@font@warning} and \cs{@font@info} are temporarily redefined
+% to avoid annoying font warnings.
+%
+% \begin{macrocode}
+\ifx\cs@compat@plain\@undefined
+\ifx\cs@check@enc\@undefined\else
+ \def\cs@check@enc{
+ \ifx\encodingdefault\cs@iltw@
+ \let\cs@warn\@font@warning \let\@font@warning\@gobble
+ \let\cs@info\@font@info \let\@font@info\@gobble
+ \SetSymbolFont{operators}{normal}{\cs@iltw@}{cmr}{m}{n}
+ \SetSymbolFont{operators}{bold}{\cs@iltw@}{cmr}{bx}{n}
+ \SetMathAlphabet\mathbf{normal}{\cs@iltw@}{cmr}{bx}{n}
+ \SetMathAlphabet\mathit{normal}{\cs@iltw@}{cmr}{m}{it}
+ \SetMathAlphabet\mathrm{normal}{\cs@iltw@}{cmr}{m}{n}
+ \SetMathAlphabet\mathsf{normal}{\cs@iltw@}{cmss}{m}{n}
+ \SetMathAlphabet\mathtt{normal}{\cs@iltw@}{cmtt}{m}{n}
+ \SetMathAlphabet\mathbf{bold}{\cs@iltw@}{cmr}{bx}{n}
+ \SetMathAlphabet\mathit{bold}{\cs@iltw@}{cmr}{bx}{it}
+ \SetMathAlphabet\mathrm{bold}{\cs@iltw@}{cmr}{bx}{n}
+ \SetMathAlphabet\mathsf{bold}{\cs@iltw@}{cmss}{bx}{n}
+ \SetMathAlphabet\mathtt{bold}{\cs@iltw@}{cmtt}{m}{n}
+ \let\@font@warning\cs@warn \let\cs@warn\@undefined
+ \let\@font@info\cs@info \let\cs@info\@undefined
+ \fi
+ \let\cs@check@enc\@undefined}
+ \AtBeginDocument{\cs@check@enc}
+\fi
+\fi
+% \end{macrocode}
+%
+% \begin{macro}{cs@undoiltw@}
+%
+% The thing is that \LaTeXe{} core only supports the T1 encoding
+% and does not bother changing the uc/lc/sfcodes when encoding
+% is switched. :( However, the IL2 encoding \emph{does} change
+% these codes, so if encoding is switched back from IL2, we must
+% also undo the effect of this change to be compatible with
+% \LaTeXe. OK, this is not the right\textsuperscript{TM} solution
+% but it works. Cheers to Petr Ol\v s\'ak.
+%
+% \begin{macrocode}
+\def\cs@undoiltw@{%
+ \uccode158=208 \lccode158=158 \sfcode158=1000
+ \sfcode159=1000
+ \uccode165=133 \lccode165=165 \sfcode165=1000
+ \uccode169=137 \lccode169=169 \sfcode169=1000
+ \uccode171=139 \lccode171=171 \sfcode171=1000
+ \uccode174=142 \lccode174=174 \sfcode174=1000
+ \uccode181=149
+ \uccode185=153
+ \uccode187=155
+ \uccode190=0 \lccode190=0
+ \uccode254=222 \lccode254=254 \sfcode254=1000
+ \uccode255=223 \lccode255=255 \sfcode255=1000}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{@@enc@update}
+%
+% Redefine the \LaTeXe{} internal function \cs{@@enc@update} to
+% change the encodings correctly.
+%
+% \begin{macrocode}
+\ifx\cs@enc@update\@undefined
+\ifx\@@enc@update\@undefined\else
+ \let\cs@enc@update\@@enc@update
+ \def\@@enc@update{\ifx\cf@encoding\cs@iltw@\cs@undoiltw@\fi
+ \cs@enc@update
+ \expandafter\ifnum\csname l@\languagename\endcsname=\the\language
+ \expandafter\ifx
+ \csname l@\languagename:\f@encoding\endcsname\relax
+ \else
+ \expandafter\expandafter\expandafter\let
+ \expandafter\csname
+ \expandafter l\expandafter @\expandafter\languagename
+ \expandafter\endcsname\csname l@\languagename:\f@encoding\endcsname
+ \fi
+ \language=\csname l@\languagename\endcsname\relax
+ \fi}
+\fi\fi
+% \end{macrocode}
+% \end{macro}
+%
+% The macro |\ldf@finish| takes care of looking for a
+% configuration file, setting the main language to be switched on
+% at |\begin{document}| and resetting the category code of
+% \texttt{@} to its original value.
+% \changes{czech-1.3h}{1996/11/02}{Now use \cs{ldf@finish} to wrap up}
+% \begin{macrocode}
+\ldf@finish\CurrentOption
+%</code>
+% \end{macrocode}
+%
+% \Finale
+%%
+%% \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 \~}
+%%
+\endinput