% \iffalse meta-comment
%
% Copyright 1999 - 2000 Andris Lasis, 2014-2024 Javier Bezos 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 Javier Bezos.
%
% This works is heavily based on the previous work by:
%
% Copyright (C) 1999 - 2000
% by Andris Lasis, Faculty of Physics and Mathematics,
% University of Latvia
%
% 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
% \iffalse
% Tell the \LaTeX\ system who we are and write an entry on the
% transcript.
%<*dtx>
\ProvidesFile{latvian.dtx}
%</dtx>
%<code>\ProvidesLanguage{latvian}
% \fi
% \ProvidesFile{latvian}
[2024/04/27 v2.0c Latvian support from the babel system]
% \iffalse
%<*filedriver>
\documentclass{ltxdoc}
\usepackage[utf8]{inputenc}
\usepackage[L7x,T1]{fontenc}
\title{The Latvian style for babel}
\author{Andris Lasis, Javier Bezos}
\newcommand*\babel{\textsf{babel}}
\DeclareTextCompositeCommand{\=}{T1}{i}{\={\i}}
\begin{document}
\maketitle
\DocInput{latvian.dtx}
\end{document}
%</filedriver>
%\fi
%
% \section{The Latvian Language}
%
% The file \textsf{latvian.ldf}\footnote{The file described in this
% section has version number 2.0c and was last revised on 2024/04/27.}
% defines the language definition macros for the Latvian language. It
% is heavily based on the work by Andris Lasis, and this file just
% cleans the code up and adapts it to babel 3.9.
%
% Since the |T1| encoding doesn't contain all the characters required
% for Latvian, you should use |L7x| instead (note the lowercase
% |x|). The |dfu| file (ie, |utf8| for \textsf{fontenc}) for this
% encoding is included in Lithuanian. Unfortunately, not many fonts
% come in this encoding. Of course, you can use either \textsf{luatex} or
% \textsf{xetex}, too, because Unicode strings are also defined.
%
% Actually, you can use the |T1| encoding, but hyphenation will not be
% correct, and oddly it doesn't work with \textsf{inputenc} and |utf8|
% (future releases will fix this issue), except if you request the
% |L7x| encoding before |T1| (this is, of course, just a trick, which
% may not work; note some fonts render macron-i with the dot, because
% |l7xenc.def| defines it as |\=i|). If |T1| is used, you must load
% \textsf{fontenc} before \textsf{babel} and set the modifier
% |t1composite| (because it redefines some `composite commands' which
% may affect other languages). A complete example is:
%\begin{verbatim}
%\documentclass{article}
%\usepackage[utf8]{inputenc}
%\usepackage[L7x,T1]{fontenc}
%\usepackage{combelow} % Optional, see below
%\usepackage[latvian.t1composite]{babel}
%\usepackage{fourier}
%
%\begin{document}
%Aa, Āā, Bb, Cc, Čč, Dd, Ee, Ēē, Ff, Gg, Ģģ, Hh, Ii, Īī, Jj, Kk, Ķķ,
%Ll, Ļļ, Mm, Nn, Ņņ, Oo, Pp, Rr, Ss, Šš, Tt, Uu, Ūū, Vv, Zz, Žž
%\end{document}
%\end{verbatim}
% By loading also the package \textsf{combelow} you get much better
% results (it is detected automatically), but you should use |T1| only
% as a last resort and only for small chuncks of Latvian text. |OT1|
% is not directly supported.
%
% There are two commands for the date: |\datumaa| (locative) and
% |\datums| (nominative); |\today| is defined as |\datumaa|, but you
% can change it with |\renewcommand{\latviantoday}{\datums}|. By
% default \textit{g.} is used, but you can change it with, say,
% |\renewcommand\latviangada{gada}|.
%
% |\alph| and |\Alph| exclude the letter \textit{q}.
%
% \StopEventually{}
%
% \subsection*{The code}
%
% \begin{macrocode}
%<*code>
\LdfInit{latvian}\captionslatvian
\ifx\l@latvian\@undefined
\@nopatterns{Latvian}
\adddialect\l@latvian0
\fi
% \end{macrocode}
%
% Captions and date.
%
% \begin{macrocode}
\StartBabelCommands*{latvian}{captions}
[unicode, charset=utf8, fontenc=EU1 EU2]
\SetString\prefacename{Priekšvārds}
\SetString\refname{Literatūra}
\SetString\abstractname{Anotācija}
\SetString\bibname{Bibliogrāfija}
\SetString\chaptername{nodaļa}
\SetString\listfigurename{Attēlu rādītājs}
\SetString\listtablename{Tabulu rādītājs}
\SetString\indexname{Priekšmetu rādītājs}
\SetString\figurename{zīm.\@}
\SetString\partname{daļa}
\SetString\enclname{Pielikumā}
\SetString\alsoname{skat.\@ arī}
\StartBabelCommands*{latvian}{date}
[unicode, charset=utf8, fontenc=EU1 EU2]
\SetStringLoop{month#1name}{janvārī,februārī,martā,aprīlī,maijā,%
jūnijā,jūlijā,augustā,septembrī,oktobrī,novembrī,decembrī}
\SetStringLoop{nommonth#1name}{janvāris,februāris,marts,aprīlis,maijs,%
jūnijs,jūlijs,augusts,septembris,oktobris,novembris,decembris}
\StartBabelCommands*{latvian}{captions}
\SetString\prefacename{Priek\v sv\=ards}%
\SetString\refname{Literat\=ura}
\SetString\abstractname{Anot\=acija}
\SetString\bibname{Bibliogr\=afija}
\SetString\chaptername{noda\c la}
\SetString\appendixname{Pielikums}
\SetString\contentsname{Saturs}
\SetString\listfigurename{Att\=elu r\=ad\={\i}t\=ajs}
\SetString\listtablename{Tabulu r\=ad\={\i}t\=ajs}
\SetString\indexname{Priek\v smetu r\=ad\={\i}t\=ajs}
\SetString\figurename{z\={\i}m.\@}
\SetString\tablename{tabula}
\SetString\partname{da\c la}
\SetString\enclname{Pielikum\=a}
\SetString\ccname{Kopija(s)}
\SetString\headtoname{}
\SetString\pagename{lpp.\@}
\SetString\seename{skat.\@}
\SetString\alsoname{skat.\@ ar\={\i}}
\StartBabelCommands*{latvian}{date}
\SetStringLoop{month#1name}{janv\=ar\={\i},febru\=ar\={\i},mart\=a,%
apr\={\i}l\={\i},maij\=a,j\=unij\=a,j\=ulij\=a,august\=a,%
septembr\={\i},oktobr\={\i},novembr\={\i},decembr\={\i}}
\SetStringLoop{nommonth#1name}{janv\=aris,febru\=aris,marts,%
apr\={\i}lis,maijs,j\=unijs,j\=ulijs,augusts,septembris,%
oktobris,novembris,decembris}
\SetString\datumaa{\number\year.~\latviangada\ \number\day.~%
\csname month\romannumeral\month name\endcsname}
\SetString\datums{\number\year.~\latviangada\ \number\day.~%
\csname nommonth\romannumeral\month name\endcsname}
\SetString\today{\datumaa}
\AfterBabelCommands{\newcommand\latviangada{g.}}
\EndBabelCommands
% \end{macrocode}
%
% Section numbering.
%
% \begin{macrocode}
\gdef\the@chapter{%
\ifx\c@chapter\@undefined\else
\ifnum\c@chapter>\z@\thechapter\fi
\fi}
\def\thechapter{%
\ifx\c@chapter\@undefined\else
\arabic{chapter}.%
\fi}
\def\thesection{\the@chapter\arabic{section}.}
\def\thesubsection{\thesection\arabic{subsection}.}
\def\thesubsubsection{\thesubsection\arabic{subsubsection}.}
\def\theparagraph{\thesubsubsection\arabic{paragraph}.}
\def\thesubparagraph{\theparagraph\arabic{subparagraph}.}
% \end{macrocode}
%
% Part numbering
%
% \begin{macrocode}
\def\depth@{\ifx\chapter\undefined\m@ne\else-2\relax\fi}
\def\@part[#1]#2{%
\relax
\ifnum\c@secnumdepth>\depth@
\refstepcounter{part}
\addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
\else
\addcontentsline{toc}{part}{#1}\fi
\ifx\chapter\undefined
\bgroup\parindent\z@\raggedright
\else
\markboth{}{}\bgroup\centering
\fi
\interlinepenalty\@M
\ifnum\c@secnumdepth>\depth@
\normalfont\bfseries\thepart~\partname % adapted to Latvian order
\par
\ifx\chapter\undefined\nobreak\else\vskip 20\p@\fi
\fi
\ifx\chapter\undefined\huge\else\Huge\fi\normalfont\bfseries#2%
\ifx\chapter\undefined\markboth{}{}\fi
\par\egroup
\ifx\chapter\undefined\nobreak
\vskip3ex \@afterheading\else\@endpart
\fi}
% \end{macrocode}
%
% Chapter head
%
% \begin{macrocode}
\def\@makechapterhead#1{%
\vspace*{50pt}%
{\parindent 0pt \raggedright
\ifnum\c@secnumdepth>\m@ne
\huge\normalfont\bfseries\thechapter\space\@chapapp{}%
\par
\vskip20pt
\fi
\Huge\normalfont\bfseries#1\par\nobreak\vskip40pt }}
% \end{macrocode}
%
% First paragraph indent (of the text following a heading).
%
% \begin{macrocode}
\let\@aifORI\@afterindentfalse
\def\bbl@latvianindent{%
\let\@afterindentfalse\@afterindenttrue
\@afterindenttrue}
\def\bbl@nonlatvianindent{%
\let\@afterindentfalse\@aifORI
\@afterindentfalse}
\addto\extraslatvian{\bbl@latvianindent}
\addto\noextraslatvian{\bbl@nonlatvianindent}
% \end{macrocode}
%
% Float numbering.
%
% \begin{macrocode}
\def\thefigure{\the@chapter\@arabic\c@figure.}
\def\thetable{\the@chapter\@arabic\c@table.}
\def\fnum@figure{\thefigure~\figurename}
\def\fnum@table{\thetable~\tablename}
\long\def\@makecaption#1#2{%
\vskip10\p@
\sbox\@tempboxa{#1\if\empty#2\else: #2\fi}%
\ifdim\wd\@tempboxa>\hsize
#1: #2\par
\else
\hbox to\hsize{\hfil\box\@tempboxa\hfil}%
\fi}
% \end{macrocode}
%
% Theorems
%
% \begin{macrocode}
\def\@thmcountersep{}
\gdef\@makethmnumber#1#2{%
\ifx\thmno@left0{#1\ #2}\else {#2. #1}\fi}
\def\@begintheorem#1#2{%
\normalfont\itshape\trivlist
\item[\hskip\labelsep
\hskip\parindent\normalfont\bfseries
{\@makethmnumber{#1}{#2}}.]}
\def\@opargbegintheorem#1#2#3{%
\normalfont\itshape\trivlist
\item[\hskip\labelsep \hskip\parindent\normalfont\bfseries
{\@makethmnumber{#1}{#2} (#3).}]}
\gdef\thmnoleft{\let\thmno@left=1}
\gdef\thmnoright{\let\thmno@left=0}
\thmnoleft
% \end{macrocode}
%
% Equations
%
% \begin{macrocode}
\def\theequation{\the@chapter\arabic{equation}}
% \end{macrocode}
%
% Marks.
%
% \begin{macrocode}
\ifx\@chapapp\undefined
\if@twoside
\def\sectionmark#1{%
\markboth
{\uppercase{\ifnum\c@secnumdepth>\z@ne\thesection\hskip1em\relax\fi#1}}%
{}}
\def\subsectionmark#1{%
\markright
{\uppercase{\ifnum\c@secnumdepth>\@ne\thesubsection\ \fi#1}}}
\else
\def\sectionmark#1{%
\markright
{\uppercase{\ifnum\c@secnumdepth>\z@\thesection\hskip1em\relax\fi#1}}}
\fi%
\else
\def\chaptermark#1{%
\markboth
{\uppercase{\ifnum\c@secnumdepth>\m@ne\thechapter~\@chapapp: \fi#1}}%
{}}
\def\sectionmark#1{%
\markright{\uppercase{\ifnum\c@secnumdepth>\z@\thesection\ \fi#1}}}
\fi
% \end{macrocode}
%
% Counters. Only locally.
%
% \begin{macrocode}
\addto\extraslatvian{%
\babel@save\@alph
\def\@alph#1{%
\ifcase#1\or a\or b\or c\or d\or e\or f\or g\or h\or i\or j\or k\or
l\or m\or n\or o\or p\or r\or s\or t\or u\or v\or
z\else\@ctrerr\fi}%
\babel@save\@Alph
\def\@Alph#1{%
\ifcase#1\or A\or B\or C\or D\or E\or F\or G\or H\or I\or J\or K\or
L\or M\or N\or O\or P\or R\or S\or T\or U\or V\or Z\else\@ctrerr\fi}}
% \end{macrocode}
%
% Hyphenmins and shorthands.
%
% \begin{macrocode}
\def\latvianhyphenmins{\tw@\tw@}
\initiate@active@char{"}
\addto\extraslatvian{\languageshorthands{latvian}}
\addto\extraslatvian{\bbl@activate{"}}
\DeclareTextCompositeCommand{\=}{OT1}{i}{\@tabacckludge={\i}}
\DeclareTextCompositeCommand{\=}{T1}{i}{\@tabacckludge={\i}}
\@expandtwoargs\in@{,t1composite,}{,\BabelModifiers,}
\ifin@
\DeclareTextCommand{\lv@cb}{T1}[1]% same as \c
{\leavevmode
\setbox\z@\hbox{#1}%
\ifdim\ht\z@=1ex\accent11 #1%
\else{\ooalign{\unhbox\z@\crcr\hidewidth\char11\hidewidth}}%
\fi}
\let\lv@cbg\lv@cb
\DeclareTextCompositeCommand{\c}{T1}{g}{\lv@cbg{g}}
\DeclareTextCompositeCommand{\c}{T1}{G}{\lv@cb{G}}
\DeclareTextCompositeCommand{\c}{T1}{r}{\lv@cb{r}}
\DeclareTextCompositeCommand{\c}{T1}{R}{\lv@cb{R}}
\DeclareTextCompositeCommand{\c}{T1}{k}{\lv@cb{k}}
\DeclareTextCompositeCommand{\c}{T1}{K}{\lv@cb{K}}
\DeclareTextCompositeCommand{\c}{T1}{l}{\lv@cb{l}}
\DeclareTextCompositeCommand{\c}{T1}{L}{\lv@cb{L}}
\DeclareTextCompositeCommand{\c}{T1}{n}{\lv@cb{n}}
\DeclareTextCompositeCommand{\c}{T1}{N}{\lv@cb{N}}
\def\lv@ifcombelow{\@ifpackageloaded{combelow}}
\AtBeginDocument{% because \@ifpackageloaded is 'only preamble'
\@ifpackageloaded{combelow}%
{\let\lv@ifcombelow\@firstoftwo}%
{\let\lv@ifcombelow\@secondoftwo}}
\addto\extraslatvian{%
\babel@save\lv@cbg
\lv@ifcombelow
{\babel@save\lv@cb
\let\lv@cb\cb
\let\lv@cbg\cb}%
{\let\lv@cbg\v}}
\fi
\declare@shorthand{latvian}{"a}{\textormath{\={a}}{\=a}}
\declare@shorthand{latvian}{"e}{\textormath{\={e}}{\=e}}
\declare@shorthand{latvian}{"u}{\textormath{\={u}}{\=u}}
\declare@shorthand{latvian}{"i}{\textormath{\={\i}}{\=\i}}
\declare@shorthand{latvian}{"o}{\textormath{\={o}}{\=o}}
\declare@shorthand{latvian}{"A}{\textormath{\={A}}{\=A}}
\declare@shorthand{latvian}{"E}{\textormath{\={E}}{\=E}}
\declare@shorthand{latvian}{"U}{\textormath{\={U}}{\=U}}
\declare@shorthand{latvian}{"I}{\textormath{\={I}}{\=I}}
\declare@shorthand{latvian}{"O}{\textormath{\={O}}{\=O}}
\declare@shorthand{latvian}{"r}{\textormath{\c{r}}{\c r}}
\declare@shorthand{latvian}{"s}{\textormath{\v{s}}{\v s}}
\declare@shorthand{latvian}{"g}{\textormath{\c{g}}{\c g}}
\declare@shorthand{latvian}{"k}{\textormath{\c{k}}{\c k}}
\declare@shorthand{latvian}{"l}{\textormath{\c{l}}{\c l}}
\declare@shorthand{latvian}{"z}{\textormath{\v{z}}{\v z}}
\declare@shorthand{latvian}{"c}{\textormath{\v{c}}{\v c}}
\declare@shorthand{latvian}{"n}{\textormath{\c{n}}{\c n}}
\declare@shorthand{latvian}{"R}{\textormath{\c{R}}{\c R}}
\declare@shorthand{latvian}{"S}{\textormath{\v{S}}{\v S}}
\declare@shorthand{latvian}{"G}{\textormath{\c{G}}{\c G}}
\declare@shorthand{latvian}{"K}{\textormath{\c{K}}{\c K}}
\declare@shorthand{latvian}{"L}{\textormath{\c{L}}{\c L}}
\declare@shorthand{latvian}{"Z}{\textormath{\v{Z}}{\v Z}}
\declare@shorthand{latvian}{"C}{\textormath{\v{C}}{\v C}}
\declare@shorthand{latvian}{"N}{\textormath{\c{N}}{\c N}}
\declare@shorthand{latvian}{"-}{\nobreak\-\bbl@allowhyphens}
\declare@shorthand{latvian}{"|}{%
\textormath{\penalty\@M\discretionary{-}{}{\kern.03em}%
\allowhyphens}{}}
\declare@shorthand{latvian}{""}{\hskip\z@skip}
\declare@shorthand{latvian}{"~}{\textormath{\leavevmode\hbox{-}}{-}}
\declare@shorthand{latvian}{"=}{\penalty\@M-\hskip\z@skip}
\ldf@finish{latvian}
%</code>
% \end{macrocode}
%
% \Finale
% \endinput
%%
%% \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 \~}
%%
