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path: root/doc/context/third/cyrillicnumbers/cyrillicnumbers.tex
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% \enablemode[print]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Module loading                                                %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\usemodule[cyrillicnumbers]
\definecyrnum[normaltextcyrnum][
  command=\oldrussian,
  dots=no,
  titlo=no,
]

\definecyrnum[rednum][
  command={\switchtocolor[red]},
]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Colors                                                        %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\definecolor  [primarycolor] [darkmagenta]
\definecolor[secondarycolor]     [magenta]

\startmode[print]
  \definecolor  [primarycolor] [gray12]
  \definecolor[secondarycolor] [gray22]
\stopmode%%% print

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Letterspacing / emphases                                      %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\usemodule [letterspace]

\defineletterspace [largecaps]
\setupletterspace  [largecaps] [
  factor=.5,
  spaceskip=.4em,
  suppresskern=yes,
]

\def\pompoustitle#1{%
  \setuplocalinterlinespace[line=33pt]%
  \color[primarycolor]{%
    \tfd\bold\WORD\largecaps{#1}%
  }%
}

\defineletterspace [mediumcaps]
\setupletterspace  [mediumcaps] [
  factor=.25,
  spaceskip=.5em,
  suppresskern=yes,
]

\definefontfeature[smallcaps][smcp=yes,mode=node,script=latn]

\def\mediumtitle#1{%
  \setuplocalinterlinespace[line=33pt]%
  \color[primarycolor]{%
    \tfa\sc\mediumcaps{#1}%
  }%
}

\defineletterspace [smallcaps]
\setupletterspace  [smallcaps] [
  factor=.05,
  spaceskip=.25em,
  suppresskern=yes,
]

\defineletterspace [textemph]
\setupletterspace  [textemph] [
  factor=.125,
  spaceskip=.33em,
  suppresskern=no,
]

\defineletterspace [slightly]
\setupletterspace  [slightly] [
  factor=.075,
  spaceskip=.33em,
  suppresskern=no,
]

\let\te\textemph

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Font Setups                                                   %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\definefontfeature [default] [default] [
  protrusion=quality,
  expansion=quality,
  mode=node,
  script=latn,
  onum=yes,
  dlig=yes,
  liga=yes,
  kern=yes,
]

\definefontfeature [kerning] [kern=yes]%

\starttypescript [serif] [bukyvede]
  % \setups [font:fallback:serif]
  \definefontsynonym [Serif]        [name:Bukyvede]        [features=default]
  \definefontsynonym [SerifItalic]  [name:Bukyvede-Italic] [features=default]
\stoptypescript

\usetypescript  [bukyvede]
\definetypeface [vintagecyrillic]       [rm] [serif]  [bukyvede]     [default] [encoding=ec]

\usetypescriptfile [type-gfsbodoni.mkiv]
\usetypescript     [gfs-bodoni]
\usetypescriptfile [type-imp-computer-modern-unicode.mkiv]
\usetypescript     [computer-modern-unicode]

\def   \russian#1{\begingroup\language[ru]\setupbodyfont[computer-modern-unicode]#1\endgroup}
\def\oldrussian#1{\begingroup\language[ru]\setupbodyfont[vintagecyrillic]#1\endgroup}
\def     \greek#1{\begingroup\language[agr]\setupbodyfont[computer-modern-unicode]#1\endgroup}

\usetypescript [modern]
\starttypescript [mymodern]
  \definetypeface [mymodern] [rm] [serif] [modern]                  [default]
  \definetypeface [mymodern] [tt] [mono]  [computer-modern-unicode] [default]
\stoptypescript %% this will do as lm and cmu are acceptably similar
\usetypescript [mymodern]
\setupbodyfont [mymodern]

\usetypescript [serif] [hz] [highquality]
\setupalign    [hanging,hz]

\setupbodyfontenvironment [default] [em=italic]

\def\quote#1{\bgroup\italic#1\egroup}
\def\uprightslash{\bgroup\tf/\egroup}
\def\uprightomiss{\bgroup\tf[\dots]\egroup}

%%% The Wiki is great. Long live the Gardener!
\definetextbackground[verbatim] [
  background=color,
  backgroundcolor=gray92,
  backgroundoffset=0cm,
  frame=off,
  location=paragraph,
  offset=0.5cm,
]

\setuptyping[
  after={\stoptextbackground\blank[line]},
  before={\blank[line]\noindentation\starttextbackground[verbatim]},
  bodyfont=9pt,
  margin=1em,
  % style=\tfx\sans,
]

%%% TODO: find out if this is documented already
%%% http://archive.contextgarden.net/message/20060523.151528.b6da35e1.en.html
%%% http://archive.contextgarden.net/message/20111221.083957.5c85d357.en.html
\setconstant\kindofpagetextareas\plusone

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Presenting the Interface                                      %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\usemodule  [int-load]
\loadsetups [t-cyrillicnumbers.xml]
\setupcolor [x11]

\define\beautifyshowsetups{%
  \unexpanded\def\setupnumfont  {\rm}%
  \unexpanded\def\setuptxtfont  {\rm}%
  \unexpanded\def\setupintfont  {\rm\sc\Word}%
  \unexpanded\def\setupvarfont  {\rm\it}%
  \unexpanded\def\setupoptfont  {\rm\it}%
  \unexpanded\def\setupalwcolor {primarycolor}%
  \unexpanded\def\setupoptcolor {primarycolor}%
  \defineframedtext [setuptext] [
    frame=off,
    background=color,
    backgroundcolor=gray92,
    width=\hsize,
    height=fit,
    align=right,
    offset=0.75em,
  ]%
}

\let\Oldshowsetup\showsetup

\define[1]\showsetup{% hurray for diversity
  \bgroup\beautifyshowsetups%
    \Oldshowsetup{#1}%
  \egroup%
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Paper                                                         %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\definepapersize[LHS][
  width=160mm,
  height=239mm,
]

\setuppapersize[LHS][LHS]

% \showframe
\setuplayout [
    width=122mm,
    %textheight=199mm, % ca. 47 rows * 12pt
    height=224mm, % text height should end up at ca. 47 rows * 12pt
    %height=fit,
    %
    topspace=14mm,
    header=12pt,
    headerdistance=4mm,
    top=00mm,
    %
    bottomspace=0mm,
    footer=23mm,
    bottom=0mm,
    footerdistance=0mm,
    %
    backspace=16mm,
    leftedge=0mm,
    leftedgedistance=0mm,
    leftmargin=16mm,
    leftmargindistance=1em,
    %
    rightmargin=15mm,
    rightmargindistance=5mm,
    rightedge=0mm,
    rightedgedistance=0mm,
]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Interaction                                                   %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\setupinteraction[%
  state=start,
  color=primarycolor,
  contrastcolor=primarycolor,
  %color=,
  %contrastcolor=,
  style=,
  focus=standard,
  title={Cyrillic Numbers Module},
  subtitle={Yet Another Number Converter},
  author={Philipp Gesang},
  keyword={ConTeXt, LuaTeX, cyrillic numerals},
]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Headings                                                      %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\defineletterspace [LSchapter]
\defineletterspace [LSsection]
\defineletterspace [LSsubsection]
\setupletterspace  [LSchapter]    [factor=.1,  spaceskip=.33em,suppresskern=yes]
\setupletterspace  [LSsection]    [factor=.15, spaceskip=.40em,suppresskern=yes]
\setupletterspace  [LSsubsection] [factor=.125,spaceskip=.33em]

\def   \fontchapter#1{\setupbodyfont[10pt]\bold\WORD\LSchapter{#1}}
\def   \fontsection#1{\setupbodyfont[10pt]\word\sc\LSsection{#1}}
\def\fontsubsection#1{\setupbodyfont[10pt]\LSsubsection{#1}}

\def   \Chapterheadfontcmd{\fontchapter}
\def   \Sectionheadfontcmd{\fontsection}
\def\Subsectionheadfontcmd{\fontsubsection}

\def\empholdrussian#1{\russian{\italic#1}}

\definecyrnum[cyrnumone][
  command=\oldrussian,
  titlo=mp,
  titlomode=2,
  dots=no,
]

\definecyrnum[cyrnumtwo][
  command=\empholdrussian,
  titlo=mp,
  titlomode=7,
  dots=no,
]

\defineconversion[cyrnumone][\cyrnumone]
\defineconversion[cyrnumtwo][\cyrnumtwo]

\definestructureconversionset[regularstructure] [numbers,cyrnumone,cyrnumtwo] [cyrnumone]
\definestructureconversionset[regularstructure] [numbers,cyrnumone,cyrnumtwo] [cyrnumone]

\setuphead [chapter] [
  align=middle,
  footer=text,
  grid=yes,
  header=empty,
  number=yes,
  sectionconversionset=regularstructure,
  % numberconversion=cyrnumone,
  page=yes,
  style=,
  textcommand=\Chapterheadfontcmd,
  before={\startlinecorrection\blank[3*line,force]},
  after={\stoplinecorrection\blank[line,force]},
]

\definetext [text] [footer] [pagenumber]

\setuphead [section] [
  align=middle,
  number=yes,
  page=no,
  style=,
  sectionconversionset=regularstructure,
  textcommand=\Sectionheadfontcmd,
  before={\blank[line]},
  after={\blank[line]},
]

% \setuphead [subsection] [
%   align=middle,
%   number=no,
%   page=no,
%   style=,
%   textcommand=\Subsectionheadfontcmd,
%   before={\blank[line]},
%   after={\blank[line]},
% ]


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Header and Footers                                            %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\setupfooter[text][% handy for occasional pagenumbers in footnotes at chapters
  style=\tfx,
]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Margins                                                       %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%% loosely based on: http://archive.contextgarden.net/message/20110804.141422.6e52d0bc.en.html
\define[1]\marginhintbox{%
  \toplinebox{\rotate{#1}}%
  % \toplinebox{\rotate{\framed{#1}}}%
}

\definemargindata[marginhint][%
  style={\tfx\tt},
  location=outer,
  align=outer,
  margin=margin,
  command=\marginhintbox,
  stack=yes,
]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% ToC                                                           %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def   \tocfontchapter#1{\tfx\WORD\LSchapter{#1}}
%\def   \tocfontsection#1{\word\sc\LSsection{#1}}
\def   \tocfontsection#1{\tfx\slightly{#1}}
\def\tocfontsubsection#1{\LSsubsection{#1}}

\setuplist [chapter] [
  alternative=c,
  interaction=text,
  textcommand=\tocfontchapter,
]

\setuplist [section] [
  alternative=b,
  interaction=text,
  margin=2em,
  numberstyle=,
  textcommand=\tocfontsection,
  textstyle=,
  numberstyle=\tfx,
]

% \setuplist [subsection] [
%   %after=2.5em,    % from the hack
%   alternative=d,
%   interaction=text,
%   margin=3em,     % hanging
%   textcommand=\tocfontsubsection,
% ]

\setuplistalternative[c] [
  %distance=0em,
  %width=0pt,
  stretch=.5em,
  command=\hskip.5em\phglistdots\hskip.5em\relax,
]

\def\phglistdots{\gleaders\hbox to 1em{\hss.\hss}\hfill}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Captions                                                      %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


\setupcaptions[
  location=bottom,
  headstyle=\tfx\italic,
  way=bytext,
  prefixsegments=none,
  style={\setupinterlinespace[9pt]\tfx},
]

\setupcaption [figure] [way=bytext]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Bibliography                                                  %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Bib: Setups                                                   %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\setuppublications [
  alternative=ssa,
  refcommand=authoryear,
  %sorttype=bbl,
  sort=author,
  numbering=yes,
  autohang=yes,
]

\setuppublicationlist [
  artauthor=\invertedauthor,
]

\setupcite [authoryear] [compress=no]

%%% Used in bibliography formatting.
\definestartstop [bibindent] [
  before={\startnarrower[left]%
          \setupindenting[-\leftskip,yes,first]%
          \clubpenalty-9000%
          \widowpenalty-9000},
  after=\stopnarrower,
]

\def\ctay#1{\cite[authoryear][#1]}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Bib: Entries                                                  %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\startpublication [
  k=fonts,
  t=book, % bibtex go to hell
  a={Hagen/Hoekwater},
  y=2011,
  n=1,
  s={Fonts},
]
  \author[]{Hans}[]{}{Hagen}
  \author[]{Taco}[]{}{Hoekwater}
  \pubyear{2011}
  \title{Fonts in \CONTEXT}
  \city{Hasselt}
\stoppublication

\startpublication [
  k=trunte,
  t=inproceedings, % bibtex go to hell
  a={Trunte},
  y=2005,
  n=2,
  s={Altkirchenslavisch},
]
  \author[]{Nikolaos H.}[]{}{Trunte}
  \pubyear{2005}
  \arttitle{Altkirchenslavisch}
  \title{\oldrussian{Словѣньскъи ѩꙁъікъ}.  Ein praktisches Lehrbuch des
         Kirchenslavischen in 30 Lektionen. Zugleich eine
         Einführung in die slavische Philologie}
  \edition{3}
  \city{München}
\stoppublication

\startpublication [
  k=zolobov,
  t=inproceedings,
  a={Žolobov},
  y=2006,
  n=3,
  s={Čislitelʹnye},
]
  \author[]{O. F.}[]{}{Žolobov}
  \pubyear{2006}
  \arttitle{Čislitelʹnye}
  \title{Istoričeskaâ grammatika drevnerusskogo âzyka}
  \pages{58--63}
  \editor[]{S.I.}[]{}{Iordanidi}
  \editor[]{V.B.}[]{}{Krysʹko}
\stoppublication

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Misc                                                          %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\clubpenalty  -7000
\widowpenalty -7000

\def\etc{{\italic\letterampersand}c}

\setupindenting [yes,next,medium]

% \sethyphenatedurlnormal{:=?&}
\sethyphenatedurlbefore{?&abcdefghijklmnopqrstuvwxyz}
% \sethyphenatedurlafter {:=}

\startasciimode
\useURL [petr]         [http://www.paratype.ru/e-zine/issue04/peter1/peter1a.htm]
        []             [\hyphenatedurl{http://www.paratype.ru/e-zine/issue04/peter1/peter1a.htm}]

\useURL [reform1917]   [http://ru.wikipedia.org/wiki/Реформа_русской_орфографии_1918_года]
        []             [\hyphenatedurl{http://ru.wikipedia.org/wiki/Реформа_русской_орфографии_1918_года}]

\useURL [wp_titlo]     [http://commons.wikimedia.org/wiki/Category:Titlo?uselang=uk]
        []             [\hyphenatedurl{http://commons.wikimedia.org/wiki/Category:Titlo?uselang=uk}]
\useURL [rubl’]        [http://ru.wikipedia.org/wiki/Рубль#.D0.92_.D0.98.D0.BC.D0.BF.D0.B5.D1.80.D0.B0.D1.82.D0.BE.D1.80.D1.81.D0.BA.D0.BE.D0.B9_.D0.A0.D0.BE.D1.81.D1.81.D0.B8.D0.B8]
        []             [\hyphenatedurl{http://ru.wikipedia.org/wiki/Рубль#.D0.92_.D0.98.D0.BC.D0.BF.D0.B5.D1.80.D0.B0.D1.82.D0.BE.D1.80.D1.81.D0.BA.D0.BE.D0.B9_.D0.A0.D0.BE.D1.81.D1.81.D0.B8.D0.B8}]
\useURL [pttypescript] [http://archive.contextgarden.net/message/20110105.204326.d0228ca7.en.html]

\useURL [phg-mail]     [mailto:megas.kapaneus@gmail.com] [] [\hyphenatedurl{megas.kapaneus@gmail.com}]
\useURL [phg-bibu]     [https://bitbucket.org/phg/]    [] []

\useURL [cmu-home]     [http://cm-unicode.sourceforge.net/]             [] [\hyphenatedurl{http://cm-unicode.sourceforge.net/}]
\useURL [cmu-debian]   [http://packages.debian.org/wheezy/fonts-cmu]    [] [\hyphenatedurl{http://packages.debian.org/wheezy/fonts-cmu}]
\useURL [cmu-arch]     [http://aur.archlinux.org/packages.php?ID=44029] [] [\hyphenatedurl{http://aur.archlinux.org/packages.php?ID=44029}]
\useURL [cmu-tl]       [http://tug.org/svn/texlive/trunk/Master/texmf-dist/fonts/opentype/public/cm-unicode/]
        []             [\hyphenatedurl{http://tug.org/svn/texlive/trunk/Master/texmf-dist/fonts/opentype/public/cm-unicode/}]
\useURL [bukyvede]     [http://kodeks.uni-bamberg.de/aksl/Schrift/BukyVede.htm]
        []             [\hyphenatedurl{http://kodeks.uni-bamberg.de/aksl/Schrift/BukyVede.htm}]
\useURL [romancyr]     [http://kodeks.uni-bamberg.de/aksl/Schrift/RomanCyrillicStd.htm]
        []             [\hyphenatedurl{http://kodeks.uni-bamberg.de/aksl/Schrift/RomanCyrillicStd.htm}]
\stopasciimode

\pdfcompresslevel9

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Makeup for Front Matter                                       %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\definemakeup [FM] [standard]
\setupmakeup [FM] [
  width=125mm,
  height=172.506mm,
  location=middle,
]

\setupheadertexts [] [] [] []
\setuppagenumbering [state=stop,location=]

\startbuffer[showcase1]
  local tab = { }
  tab[#tab+1] = [[\placetable[right,3*hang][numval]{Number values of the Cyrillic alphabet.}{\starttabulate[|r|]]..string.rep("l|", 9).."]"
  tab[#tab+1] = [[\NR\NC $n$]]
  for i=1, 9 do tab[#tab+1] = [[\NC $]]..i.."$" end
  tab[#tab+1] = [[\NC\NR\HL\NC $n · 10^0$]]
  for i=1, 9 do tab[#tab+1] = [[\NC\normaltextcyrnum{]]..i.."}" end
  tab[#tab+1] = [[\NC\NR\NC $n · 10^1$]]
  for i=10, 90, 10 do  tab[#tab+1] = [[\NC\normaltextcyrnum{]]..i.."}" end
  tab[#tab+1] = [[\NC\NR\NC $n · 10^2$]]
  for i=100, 900, 100 do  tab[#tab+1] = [[\NC\normaltextcyrnum{]]..i.."}" end
  tab[#tab+1] = [[\stoptabulate\blank[force,2*big]}]]
  context(table.concat(tab))
\stopbuffer

\defineframed[showcaseframed][
  frame=off,
  loffset=3pt,
  roffset=\framedparameter{loffset},
  toffset=\framedparameter{loffset},
  boffset=\framedparameter{loffset},
  background=color,
  backgroundcolor=gray92,
]
\startbuffer[titloshowcase]%
% \placefigure[right,2*hang][mptitlodemo]{Titlo as a matter of taste.}{%
% \placefigure[][mptitlodemo]{Titlo as a matter of taste.}{%
\placefigure[top][mptitlodemo]{Titlo as a matter of taste.}{%
  \showcaseframed[
    width=\hsize,
    roffset=\framedparameter{loffset},
    toffset=6pt,
  ]{%
    \tfc%
    \dorecurse{9}{\normaltextcyrnum[titlo=mp,titlocolor=primarycolor,titlomode=\recurselevel]{42}%
                  \ifnum\recurselevel=9\else\hfill\fi}%
  }%
}%
\stopbuffer

\startbuffer[titlospanshowcase]%
\placefigure[left][titlospandemo]{Different titlo spans.}{%
  \showcaseframed[width=.333\hsize,align=left]{%
    \type{titlospan}\hfill result\par
    \dorecurse{6}{%
      \recurselevel
      \hfill
      \normaltextcyrnum[titlo=mp,titlomode=1,titlocolor=primarycolor,titlospan=\recurselevel]{424242}%
      \ifnum\recurselevel<6\par\fi%
    }
  }%
}%
\stopbuffer

\startbuffer[penwidthshowcase]%
\start\setuptolerance[horizontal,tolerant,stretch]%
% \placetable[left][penwidthdemo]{Comparison of different values for the parameter \type{penwidth}.}{%
\placetable[middle][penwidthdemo]{Comparison of different values for the parameter \type{penwidth}.}{%
  \starttabulate[|r|r|l|r|r|l|]%% tabulate sucks hard, just try to use it with a macro that contains a numberconversion and you’ll know why
    \let\lp\letterpercent
    \startluacode
      local max      = 10
      local step     = .2
      local dimleft  = .4
      local f_row = [[\NC \lp d \NC \lp .3fpt \NC \cyrnum[penwidth=\lp dpt]{\lp d} \NC \lp d \NC \lp .3fpt \NC \cyrnum[penwidth=\lp dpt]{\lp d} \AR]]
      for i=1, max do
        dimleft = dimleft + step
        local dimright = dimleft + max * step
        context(string.format(f_row, i, dimleft, dimleft, i, i+4200, dimright, dimright, i+4200))
      end
    \stopluacode
  \stoptabulate%
}%
\stop
\stopbuffer

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\starttext                                                      %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\startfrontmatter
\setuplayout [width=middle]
\startFMmakeup
  \raggedcenter
  \vfill
  {\tfc\italic Typesetting}\par
  \vfill
  % {\tfd\WORD\largecaps{Cyrillic Numerals}}\par
  \pompoustitle{Cyrillic Numerals}\par
  \vfill
  {\tfc\italic with {\CONTEXT} MkIV}\par
  \vfill
  % {\tfa\sc \mediumcaps{A Module}}\par
  \mediumtitle{A Module}\par
  \vfill
\stopFMmakeup

\page

% \def\cyrillicalphabet{%
%   А,Б,В,Г,Д,Е,Ж,Ѕ,ʐ,И,І,К,Л,М,Н,О,П,Р,С,Т,ОУ,Ф,%
%   Х,Ѡ,Ц,Ч,Ш,Щ,Ъ,Ы,Ь,Ѣ,Ю,Ι,Ѥ,Ѧ,Ѫ,Ѩ,Ѭ,Ѯ,Ѱ,Ѳ,Ѵ,%
% }

\def\showoldrussian#1{\begingroup\language[ru]\setupbodyfont[vintagecyrillic]\tfb#1\endgroup}
\def\numbershowcase{%
  \bgroup
  \setupindenting[no]
  \definecyrnum[showcasecyrnum][
    dots=yes,
    titlo=mp,
    titlomode=\the\thistitlomode,
    command=\showoldrussian,
    titlocolor=secondarycolor,
  ]
  \newdimen\skipincrement \skipincrement=0.047619047619048\hsize
  \newdimen\showskip      \showskip=\zeropoint
  \newconditional\checker \setfalse\checker
  \newcount\thistitlomode \thistitlomode=1
  \startlines
    \dorecurse{20}{%
      \getrandomcount\thistitlomode{1}{9}%
      \dontleavehmode\hbox to\showskip{}%
      \ifconditional\checker
        \setfalse\checker
        \colored[primarycolor]{\showcasecyrnum{\recurselevel}}%
      \else
        \settrue\checker
        \showcasecyrnum{\recurselevel}%
      \fi%
      \advance\showskip by \skipincrement
      \crlf%
    }
  \stoplines
  \egroup
}

\startstandardmakeup
  \numbershowcase
  \vfill\raggedright\tfx
  © 2012-01-29 {\italic Philipp Gesang}, Heidelberg\par
  The latest Version can be found at \from [phg-bibu].\par
  Mail bugs and fixes or complaints and suggestions to \from
  [phg-mail].\par
\stopstandardmakeup
\stopfrontmatter

\startbodymatter
\page [odd]

\setuppagenumber [number=1]
\setuppagenumbering [
  state=start,
  alternative=doublesided,
  location={right,header},
]

\title{Content}

\placelist[chapter,section][criterium=all]

\def\headertextformat{\tfx\word\sc}

\setupheadertexts
  [{\headertextformat\getmarking[chapter]}] [{\headertextformat\pagenumber}]
  [{\headertextformat\pagenumber}]          [{\headertextformat\getmarking[chapter]}]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startchapter[title=Introduction]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

The \CONTEXT\ format comes with a collection of conversion
routines for different number systems that are specified in the
files \type{core-con.mkiv} and \type{core-con.lua}.
\te{Cyrillic numerals}, however, are not part of this collection.
The aim of the module at hand is to provide means of handling
Cyrillic numbers and make them seamlessly integrate with the
existing interface for number conversion.

If you are familiar with Cyrillic numbers, you might choose to
skip the rest of this section and instead continue in medias res
with the description on the module’s usage in the section on
\about[functionality].

\ctxluabuffer[showcase1]
\start\setuptolerance[horizontal,verytolerant]%% stupid float
\indentation The Cyrillic numeral system, like the alphabet
it is based on, originated from the Greek numerals and thus
continues many features of the latter.\footnote{%
  Thorough examinations of how Cyrillic numbers were used in
  praxi are hard to find.
  The best that the couple of bookshelfs dedicated to grammar in
  a local department of Slavonic languages has to offer appears
  to be \ctay{zolobov}.
  Another work, \ctay{trunte}, although it follows a less
  descriptive but rather instructional approach, deserves
  mentioning as well.
}
As with the Roman number system, there are no dedicated glyphs
reserved for numerals, instead numbers are represented by strings
of letters from the ordinary alphabet, organized in a peculiar
way.
Both systems also have the base (10) in common.
However, unlike the Roman system Cyrillic numbers are
\te{positional}, meaning that the numerical value of a digit
depends on its location relative to the other digits.
The first nine digits, in ascending order, are:
\dorecurse{9}{\ifnum\recurselevel=9 and \fi%
              “\normaltextcyrnum{\recurselevel}”%
              \ifnum\recurselevel<9, \fi}.
As you might have noticed, this series does not correspond to the
first nine glyphs of the Cyrillic alphabet
(\oldrussian{а б в г д е ж ѕ з}), but rather to the order of the
original Greek letters from which they were derived
(\greek{α β γ δ ε ϛ ζ η θ}, with the character \greek{ϛ} at
position №~6 representing “stigma”).
The inherited order of numerical values was kept, essentially
trading backward compatibility for simplicity.
The two other sets of letters that represent multiples of ten and
hundred are listed in \in{Table}[numval].
The digits are written in descending order, beginning with the
most significant one.
The numbers from 11 to 19 follow a different rule for their order
mimicks the spoken language, which means that the \te{less}
significant digit \te{precedes} the more significant one
(\dostepwiserecurse{11}{18}{1}{\normaltextcyrnum{\recurselevel}, }%
\normaltextcyrnum{19}).
There are no glyphs to represent zeros, so they are simply omitted.
For example, in the Cyrillic system the number 42 is written as
\normaltextcyrnum{42}; the lack of a distinct zero sign causes
402 to have \te{two} digits as well, but the character
representing the digit 4 is chosen from the hundreds set:
\normaltextcyrnum{402}.\par
\stop

% above 10^3
The rules so far do not allow for numbers above 999.
To compensate for the lack of additional letters, greater numbers
are represented by the same glyphs (their value being padded by
1000).
There are two ways to avoid confusion: Each digit may be prefixed
with a special character, the thousands sign \oldrussian{҂}.
That way, 42 is still written \normaltextcyrnum{42}, but 42~000
becomes \normaltextcyrnum{42000}, and their sum
\normaltextcyrnum{42042}.
But if numbers become bigger, the high digits can take
alternative ornate forms:
\space\normaltextcyrnum[preferhundredk=yes]{100000} -- instead of
\normaltextcyrnum{100000} -- for 100~000, and
\space\normaltextcyrnum{1000000} for 1~000~000.

% dots, titlo
In an environment where punctuation was at best minimal and
interword spacing a luxury, numbers of this kind tend to be
confused with text.
Therefore, a Cyrillic number can have additional markers.
\te{Dots} are used as delimiters before and after a number:
\normaltextcyrnum[dots=yes]{42}.
Additionally, a number may be indicated by the \te{titlo}, which
may span its whole length or just parts of it:
\normaltextcyrnum[titlo=mp]{42}.

The Cyrillic number module combines all the above mentioned
aspects into one handy command generator, relying on Lua for the
conversion routine and \METAPOST\ for the titlo placement.
With all options in one place, it is trivial to create and
maintain different conversion settings for different purposes.

\stopchapter

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startchapter[reference=functionality,title=Functionality]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startsection[title=Setup]

The module is initialized as any other:

\starttyping
\usemodule[cyrillicnumbers]
\stoptyping

Once the module code is loaded, the \te{setup} command provides
means to configure all the functionality it offers.

\showsetup{setupcyrnum}

Let’s walk through the options one by one.\marginhint{dots}
As was hinted in the introduction a common practice is to delimit
Cyrillic numbers with dots.
Dot placement is enabled or disabled by setting the \type{dots}
key to {\italic yes} or {\italic no} respectively.
The \type{dotsymbol} key allows the user to supply a delimiter of Eir
own choice; it defaults to the character “·” (unicode
{\sc u+00b7}).\marginhint{dotsymbol}
If a font doesn’t contain a glyph for this code point or for
whatever reason another symbol is required, the solution will
look like this: \type{\setupcyrnum[dots=yes,dotsymbol=\cdot]}.
The result of this modification looks as follows:
\normaltextcyrnum[dots=yes,dotsymbol=\cdot]{42}.
As the dot can be an arbitrary symbol, it could be replaced by
the asterisk: \normaltextcyrnum[dots=yes,dotsymbol=*]{42}, or --
even weirder -- the hash character (“Gartenzaun”):
\normaltextcyrnum[dots=yes,dotsymbol=\#]{42}.

In order to notate the sixth decimal digit (for multiples of one
hundred million) there are two mutually excluding
options\marginhint{preferhundredk}: either the hundred thousands
sign or the thousands prefix may be employed.
Thus, the setup key \type{preferhundredk} determines which one
will be chosen. If set to {\italic yes}, then it’s going to be
the houndred thousands sign, else the regular thousands sign:
\normaltextcyrnum[preferhundredk=yes]{900000} $=$
\normaltextcyrnum[preferhundredk=no] {200000} $+$
\normaltextcyrnum[preferhundredk=no] {700000}.
(As is obvious from this example, the visual quality of the
houndred thousands sign, which is a separate glyph, depends on
the font used.)

Not every font contains proper glyphs for the entire Cyrillic unicode
range, in fact every dedicated font for a single Cyrillic alphabet --
contemporary Russian, say -- might not contain all the characters needed
to represent every Cyrillic numeral.\marginhint{command}
This is the result of the historical development the respective
scripts went through.
This process usually lead to the elimination of several glyphs at
different stages of the development.
For example the Russian alphabet experienced one significant
reduction of letters at the hand of emperor Peter~I\footnote{%
  For an overview cf. \from[petr] or just google
  \quotation{\russian{гражданский шрифт}}.
}
and another later in 1917 as a consequence of -- not only --
the revolution.\footnote{%
  Cf. \from[reform1917].
}
Thus, chances are that in order to represent Cyrillic numbers,
which rely on a superset of the modern Russian alphabet, another
font needs to be chosen.\footnote{%
  Font fallbacks are another option if the substitutes match the
  main font typographically; see \ctay{fonts}, pp. 97--99.
}
The Cyrillic Numbers module provides a hook for this kind of
customization: you may define your own font switching macro and
assign it to the \type{command} key of the setup.
Suppose you decide to typeset your numbers using the Paratype
Serif font.\footnote{%
  A typescript can be found on the \CONTEXT\ mailing list:
  \from[pttypescript]. Keep in mind that ParaType Serif itself is
  not a particularly suitable number font as it does not contain
  all required glyphs.
}

\starttyping

%%% 1. Load the module and the font.
\usemodule         [cyrillicnumbers]
\usetypescriptfile [type-paratype.mkiv]

%%% 2. Define the font and a command that switches to it.
\definetypeface [numberfont] [rm]      [serif]
                [paratype]   [default] []
\unexpanded\define[1]\numbercommand{%
  \begingroup
    \language[ru]%
    \setupbodyfont[numberfont]%
    #1%
  \endgroup%
}

%%% 3. Hook the command into our converter.
\setupcyrnum [dots=yes,command=\numbercommand]

%%% 4. Use as needed.
\starttext
Normal text \cyrnum{42} \dots
\stoptext

%%% 5. ????

%%% 6. Profit!!!!!

\stoptyping

Naturally, the \type{command} may do anything that fits inside a
one-argument macro, from coloring (\rednum[titlo=no]{42}) to case
manipulation
(\normaltextcyrnum[command=\WORD\oldrussian]{42}).

The key \type{titlo} controls the placement and, if applicable,
placement method of the
\cyrnumdrawtitlo{\te{titlo}}.\marginhint{titlo}
The two valid method identifiers are {\italic mp} and {\italic
font}, everything else will be interpreted as {\italic no}, e.~g.
the titlo will be omitted.
The latter method, {\italic font}, takes the titlo glyph as
supplied by the font file (code point U+483).
The main drawback of this solution is that to my knowledge the
font titla are designed to span a single character only.
As the titlo belongs to the class of combining characters, in the
stream of unicode glyphs it will be \te{appended} to the
character above which it is placed.
Thus, multi-digit Cyrillic numbers (i.~e. essentially any number
with two or more non-zero digits) won’t be represented in an
optimal way: \normaltextcyrnum[titlo=font]{42}.
There is a further option, \type{titlolocation}, which controls
the placement of a font specific titlo.\marginhint{titlolocation}
The three possible values specify a position
{\italic first}:  \normaltextcyrnum[titlo=font, titlolocation=first]{4242},
{\italic middle}: \normaltextcyrnum[titlo=font,titlolocation=middle]{4242}, and
{\italic final}:  \normaltextcyrnum[titlo=font, titlolocation=final]{4242}.
(For even character counts, the {\italic middle} argument will
pick one place to the right of the exact middle.)

\getbuffer[titloshowcase]
\getbuffer[titlospanshowcase]\indentation An alternative to the
font titlo is provided by the {\italic mp} variant which uses
\METAPOST\ to actually \te{draw} a titlo above the string of
digits.
Not only does this titlo cover the entire numeral, it also comes
in a variety of drawing routines.
At the moment there are nine more or less different titla you
may choose from as demonstrated in \in{figure}[mptitlodemo].
These can be enabled on via the \type{titlomode} key.
(Observant users will have recognized mode 8 as the old Rubl’
sign:
\normaltextcyrnum[titlo=mp,titlomode=8,penwidth=.21]{42}.\footnote{%
  Cf. \from[rubl’].
})
The range of digits to be covered by the titlo can be customized
by passing the parameter \type{titlospan} an integer.
The default value of 3 results in the titlo spanning at maximum the
least significant three digits, because these will not be prefixed
by a thousands sign.\marginhint{titlomode,titlospan}
If the user wants the numeral to be covered as a whole, E can
simply pass the value {\italic all}.
Beware that the dimensions of the titlo are proportional to the
width of the numeral.
Therefore, sufficiently wide (in terms of non-zero digits)
numbers will cause the titlo to shrink horizontally as seen in
\in{figure}[titlospandemo].
E.~g. for the single digit number
\normaltextcyrnum[titlo=mp,titlomode=5]{1} the titlo even exceeds
the character it sits on, while it does not entirely cover the
five digits plus two thousand signs of
\normaltextcyrnum[titlo=mp,titlospan=all,titlomode=5]{54321}.
When using the {\italic mp} titlo the color of this element can
be chosen separately by passing a valid color identifier to the
\type{titlocolor} key.\marginhint{titlocolor}
The following example code demonstrates the colorization and
drawing facilities.

\starttyping

\usemodule [cyrillicnumbers]
\setupbodyfont [computer-modern-unicode]
\setupcyrnum [
  titlo=mp,
  titlocolor=blue,
  titlospan=all,
  titlomode=7,
]

\starttext
\startlines
\cyrnum                                    {42}
\cyrnum   [titlocolor=red,titlomode=9] {141213}
\cyrnum [titlocolor=green,titlomode=2] {271828}
\cyrnum  [titlocolor=cyan,titlomode=4] {314159}
\stoplines
\stoptext

\stoptyping

\indentation The \METAPOST\ method also comes with a key
\type{penwidth}\marginhint{penwidth}, which rather obviously determines
the width of the pen that is used when drawing a titlo.
Finding the optimal width can involve a lot of testing on the
user’s side; as a rule, the greater the font size, the wider the
pen should be.
Refer to \in{table}[penwidthdemo] for a demonstration of
different values for this parameter.
\getbuffer[penwidthshowcase]

\stopsection

\startsection[title=Predefined Commands]

Once the module is loaded, the commands \type{\cyrnum} and
\type{\cyrnumdrawtitlo} will have been predefined.

\showsetup{cyrnum}

\type{\cyrnum} is the default Cyrillic number macro. It is
fully functional, meaning that besides converting a nonnegative
integer into a Cyrillic numeral, it takes a key-value set of
options as an optional first argument.

\starttyping
\usemodule[cyrillicnumbers]
\starttext

\cyrnum{1}

\cyrnum[titlo=mp,titlomode=4]{42}

\cyrnum{15}

\stoptext
\stoptyping

Any of the abovementioned settings can be specified in the first
argument.
As customary with \CONTEXT\ macros, these additional settings are
local to one instance.
Further calls to the macro won’t be affected, unless they are
explicitly applied via \type{\setupcyrnum},

The use of \te{titla} is not restricted to indicating numerals.
In addition it is often employed as a kind of emphasis in
handwritten text where it is not easy to achieve visual
distinction by font switching.
Also, the titlo serves as a default marker for abbreviations as
in  \oldrussian{благодѣть} \rightarrow\space
\oldrussian{\cyrnumdrawtitlo{блг}одѣть}.

\showsetup{cyrnumdrawtitlo}

This is where the macro \type{\cyrnumdrawtitlo} comes into play.
For instance, designations of things considered “sacred” are
highlighted by default in some texts.
Because they appear very frequently, they were shortened as
well, like \oldrussian{господь}
\rightarrow\space\oldrussian{\cyrnumdrawtitlo{гь}}.\footnote{%
  Examples taken from \from[wp_titlo].
}

\starttyping
господь   ->\cyrnumdrawtitlo{гь}

благодѣть -> \cyrnumdrawtitlo{блг}одѣть
\stoptyping

\stopsection

\startsection[title=Command Derivation]

There is no need to reconfigure the \type{\cyrnum} macro whenever
you intend to deviate from the presets.
Instead, special purpose commands can be defined via
\type{\definecyrnum}.

\showsetup{definecyrnum}

All the options that can be passed to \type{\definecyrnum} are
also valid for derived macros; they inherit the setups of
the macros they are derived from.
A full example to play with is given in below listing:

\starttyping
\usemodule[cyrillicnumbers]
\setupbodyfont[computer-modern-unicode]

\definecyrnum[mynumone][titlo=no,dots=no]

\definecyrnum[mynumtwo][mynumone]
\setupcyrnum [mynumtwo][titlo=mp,titlomode=2,titlocolor=red]

\definecyrnum[mynumthree][mynumtwo]
\setupcyrnum [mynumthree][titlomode=4,dots=yes]

\starttext

\mynumone{42}
\mynumtwo{42}
\mynumthree{42}

\stoptext \endinput
\stoptyping

\start
  \definecyrnum[mynumone][titlo=no,dots=no]

  \definecyrnum[mynumtwo][mynumone]
  \setupcyrnum [mynumtwo][titlo=mp,titlomode=2,titlocolor=red]

  \definecyrnum[mynumthree][mynumtwo]
  \setupcyrnum [mynumthree][titlomode=4,dots=yes]

  \noindentation Which results in:
  \mynumone{42}
  \mynumtwo{42}
  \mynumthree{42}.
\stop

\stopsection

\stopchapter

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startchapter[reference=usage,title=Usage and Precautions]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\startsection[title=Counters]
The macros created by \type{\definecyrnum} are generic conversion
commands.
As such, they can be hooked into any functionality that outputs
integers of some sort: document structure elements, page numbers
{\italic\letterampersand}c.
In order to have \CONTEXT\ recognize your personal Cyrillic
number macro as a converter you need the macro
\type{\defineconversion}.

\starttyping
\usemodule [cyrillicnumbers]
\setupbodyfont [computer-modern-unicode]

%%% 1. Define a number converter.
\definecyrnum [neatsections] [
  dots=yes,
  titlo=mp,
  titlomode=7,
]

%%% 2. Register the converter.
\defineconversion [my_section_conversion] [\neatsections]

%%% 3. Insert it into a structure set.
\definestructureconversionset [my_section_set]
  [numbers,my_section_conversion] [my_section_conversion]

%%% 4. Use the set in your chapter command.
\definehead [mychapter] [chapter]
\setuphead  [mychapter] [
  sectionconversionset=my_section_set,
  page=no,
]

\starttext

\dorecurse{10}{%
  \startmychapter[title=foo]
    \input knuth
  \stopmychapter
}

\stoptext \endinput
\stoptyping

\stopsection

% \startsection[title=The Titlo]
% \stopsection

\startsection[title=Font Issues]

Although not the entire Cyrillic alphabet is needed to represent
the numerals, they involve certain characters which are uncommon
in contemporary languages.
Therefore they are usually omitted in Cyrillic fonts, which leads
to the problem of finding an adequate font.
A matching superset of Knuth’s typeface is {\italic Computer Modern
Unicode} which is part of \TEX Live and packaged for many
distributions.\footnote{%
  Home:       \from[cmu-home];
  \TEX Live:  \from[cmu-tl];
  Arch:       \from[cmu-arch];
  Debian:     \from[cmu-debian].
}
CMU is SIL-OpenFont licensed; it has been used in some of the
above examples.

There are alternatives offering glyph shapes that resemble the
hand written script of Old Slavonic codices.
One of them is the beautiful {\italic BukyVede} which has been
used as the main Cyrillic font throughout the text.
It was created by the Codex project of the Bamberg
University\footnote{%
  Home: \from[bukyvede].
}
but unfortunately the licensing terms are imprecise (non-free).
Its authors offer another font matching the popular Times
typeface under a yet more restrictive license.\footnote{%
  Home: \from[romancyr].
}

\stopsection

\stopchapter

\stopbodymatter

\startbackmatter

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startchapter[title=License]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Copyright 2012 \te{Philipp Gesang}. All rights reserved.

Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
conditions are met:

\startitemize[n]
  \item Redistributions of source code must retain the above
    copyright notice, this list of conditions and the following
    disclaimer.
  \item Redistributions in binary form must reproduce the
    above copyright notice, this list of conditions and the
    following disclaimer in the documentation and/or other
    materials provided with the distribution.
\stopitemize

\begingroup
\setuptolerance [horizontal,strict]
\startalignment [right,nothyphenated]
\noindentation\sc\startsmallcaps
  this software is provided by the copyright
  holder “as is” and any express or implied warranties,
  including, but not limited to, the implied warranties of
  merchantability and fitness for a particular purpose are
  disclaimed. in no event shall the copyright holder or
  contributors be liable for any direct, indirect, incidental,
  special, exemplary, or consequential damages (including, but
  not limited to, procurement of substitute goods or services;
  loss of use, data, or profits; or business interruption)
  however caused and on any theory of liability, whether in
  contract, strict liability, or tort (including negligence or
  otherwise) arising in any way out of the use of this software,
  even if advised of the possibility of such damage.
\stopsmallcaps\endgraf
\stopalignment
\endgroup

\stopchapter

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\startchapter[title=References]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\startbibindent
  \placepublications[criterium=all]
\stopbibindent

\stopchapter

\stopbackmatter

\stoptext