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%D \module
%D [ file=typo-cap,
%D version=2009.03.27, % code moved from core-spa.mkiv
%D title=\CONTEXT\ Typesetting Macros,
%D subtitle=Capping,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\writestatus{loading}{ConTeXt Typesetting Macros / Caps}
\unprotect
%D Maybe we need a more clever system: either command or style mode etc. so
%D that we can avoid the grouped mess in a simple style switch.
\registerctxluafile{typo-cap}{1.001}
\definesystemattribute[case][public]
%D \macros
%D {setupcapitals}
%D
%D By default we use pseudo small caps in titles. This can be
%D set up with:
%D
%D \showsetup{setupcapitals}
\installcorenamespace{capitals}
\installcommandhandler \??capitals {capitals} \??capitals
%D Beware, these are not really defines (yet).
\definecapitals[\v!WORD] % all upper
\definecapitals[\v!capital] % one upper + font
\definecapitals[\v!Capital] % some upper + font
\definecapitals[\v!mixed] % UpperCase
\definecapitals[\v!WORD] % all lower
\definecapitals[\v!Word] % one upper + font
\definecapitals[\v!Words] % some upper
\definecapitals[\v!word][\c!style=] % nothing
%D \macros
%D {Word, Words, WORD, WORDS}
%D
%D This is probably not the right place to present the next set
%D of macros.
%D
%D \starttyping
%D \Word {far too many words}
%D \Words{far too many words}
%D \WORD {far too many words}
%D \WORDS{far too many words}
%D \stoptyping
%D
%D \typebuffer
%D
%D This calls result in:
%D
%D \startlines
%D \getbuffer
%D \stoplines
%D
%D \showsetup{Word}
%D \showsetup{Words}
%D \showsetup{WORD}
%D \showsetup{WORDS}
% test \WORD{test TEST \TeX} test
% test \word{test TEST \TeX} test
% test \Word{test TEST \TeX} test
\unexpanded\def\setcharactercasing[#1]%
{\ctxcommand{setcharactercasing("#1",\number\fontid\font)}}
% todo: names casings
\unexpanded\def\WORD {\groupedcommand{\setcharactercasing[\v!WORD ]}{}}
\unexpanded\def\word {\groupedcommand{\setcharactercasing[\v!word ]}{}}
\unexpanded\def\Word {\groupedcommand{\setcharactercasing[\v!Word ]}{}}
\unexpanded\def\Words{\groupedcommand{\setcharactercasing[\v!Words]}{}}
% This might become:
%
% \unexpanded\def\WORD {\bgroup\def\g_word{\setcharactercasing[\v!WORD ]}\afterassignment\g_word\let\nexttoken}
% \unexpanded\def\word {\bgroup\def\g_word{\setcharactercasing[\v!word ]}\afterassignment\g_word\let\nexttoken}
% \unexpanded\def\Word {\bgroup\def\g_word{\setcharactercasing[\v!Word ]}\afterassignment\g_word\let\nexttoken}
% \unexpanded\def\Words{\bgroup\def\g_word{\setcharactercasing[\v!Words]}\afterassignment\g_word\let\nexttoken}
%
% so no longer {\Word test} and { } mandate (also later \groupedcommands will go)
\let\WORDS\WORD
\let\words\word
%D \macros
%D {kap,KAP,Kap,Kaps,nokap,userealcaps,usepseudocaps}
%D
%D We already introduced \type{\cap} as way to capitalize
%D words. This command comes in several versions:
%D
%D \startbuffer
%D \cap {let's put on a \cap{cap}}
%D \cap {let's put on a \nocap{cap}}
%D \CAP {let's put on a \\{cap}}
%D \Cap {let's put on a \\{cap}}
%D \Caps{let's put on a cap}
%D \stopbuffer
%D
%D \typebuffer
%D
%D Note the use of \type{\nocap}, \type{\\} and the nested
%D \type{\cap}.
%D
%D \startlines
%D \getbuffer
%D \stoplines
%D
%D These macros show te main reason why we introduced the
%D smaller \type{\tx} and \type{\txx}.
%D
%D \starttyping
%D \cap\romannumerals{1995}
%D \stoptyping
%D
%D This at first sight unusual capitilization is completely
%D legal.
%D
%D \showsetup{smallcapped}
%D \showsetup{notsmallcapped}
%D \showsetup{CAPPED}
%D \showsetup{SmallCapped}
%D \showsetup{SmallCaps}
%D
%D The difference between pseudo and real caps is demonstrated
%D below:
%D
%D \startbuffer
%D \usepseudocaps \cap{Hans Hagen}
%D \userealcaps \cap{Hans Hagen}
%D \stopbuffer
%D
%D \typebuffer
%D
%D \getbuffer
%D
%D The \type {\bgroup} trickery below is needed because of
%D \type {\groupedcommand}.
\let\disablepseudocaps\relax % maybe used elsewhere
\newconditional\c_typo_capitals_pseudo
\unexpanded\def\usepseudocaps{\settrue \c_typo_capitals_pseudo}
\unexpanded\def\userealcaps {\setfalse\c_typo_capitals_pseudo}
\usepseudocaps
% we use char0 as placeholder for the larger font
%
% here we keep the \groupedcommand
\def\typo_capitals_set_fake#1%
{\edef\currentcapitals{#1}%
%\setcharactercasing[\currentcapitals]%
\ctxcommand{setcharactercasing("\currentcapitals",\number\fontid\font)}%
\signalcharacter % retain current style
\usecapitalsstyleparameter\c!style}
\def\typo_capitals_set_real#1%
{\edef\currentcapitals{#1}%
\sc
%\setcharactercasing[\currentcapitals]}
\ctxcommand{setcharactercasing("\currentcapitals",\number\fontid\font)}}
\unexpanded\def\pseudosmallcapped{\groupedcommand{\typo_capitals_set_fake\v!WORD }\donothing} % all upper
\unexpanded\def\pseudoSmallcapped{\groupedcommand{\typo_capitals_set_fake\v!capital}\donothing} % one upper + font
\unexpanded\def\pseudoSmallCapped{\groupedcommand{\typo_capitals_set_fake\v!Capital}\donothing} % some upper + font
\unexpanded\def\pseudoMixedCapped{\groupedcommand{\typo_capitals_set_fake\v!mixed }\donothing} % UpperCase
\unexpanded\def\realsmallcapped {\groupedcommand{\typo_capitals_set_real\v!WORD }\donothing} % all lower
\unexpanded\def\realSmallcapped {\groupedcommand{\typo_capitals_set_real\v!Word }\donothing} % one upper + font
\unexpanded\def\realSmallCapped {\groupedcommand{\typo_capitals_set_real\v!Words }\donothing} % some upper
\unexpanded\def\notsmallcapped {\groupedcommand{\typo_capitals_set_fake\v!word }\donothing}
\unexpanded\def\font_style_pseudosmallcapped{\typo_capitals_set_fake\v!WORD } % all upper
\unexpanded\def\font_style_pseudoSmallcapped{\typo_capitals_set_fake\v!capital} % one upper + font
\unexpanded\def\font_style_pseudoSmallCapped{\typo_capitals_set_fake\v!Capital} % some upper + font
\unexpanded\def\font_style_pseudoMixedCapped{\typo_capitals_set_fake\v!mixed }
\unexpanded\def\font_style_realsmallcapped {\typo_capitals_set_real\v!WORD } % all lower
\unexpanded\def\font_style_realSmallcapped {\typo_capitals_set_real\v!Word } % one upper + font
\unexpanded\def\font_style_realSmallCapped {\typo_capitals_set_real\v!Words } % some upper
\unexpanded\def\font_style_notsmallcapped {\typo_capitals_set_fake\v!word }
\unexpanded\def\typo_capitals_smallcaps
{\ifconditional\c_typo_capitals_pseudo
\expandafter\firstoftwoarguments
\else
\expandafter\secondoftwoarguments
\fi}
\unexpanded\def\smallcapped{\typo_capitals_smallcaps\pseudosmallcapped\realsmallcapped}
\unexpanded\def\Smallcapped{\typo_capitals_smallcaps\pseudoSmallcapped\realSmallcapped}
\unexpanded\def\SmallCapped{\typo_capitals_smallcaps\pseudoSmallCapped\realSmallCapped}
\unexpanded\def\font_style_smallcapped{\typo_capitals_smallcaps\font_style_pseudosmallcapped\font_style_realsmallcapped}
\unexpanded\def\font_style_Smallcapped{\typo_capitals_smallcaps\font_style_pseudoSmallcapped\font_style_realSmallcapped}
\unexpanded\def\font_style_SmallCapped{\typo_capitals_smallcaps\font_style_pseudoSmallCapped\font_style_realSmallCapped}
\unexpanded\def\autocap{\ifmmode\expandafter\normalcap\else\expandafter\smallcapped\fi}
\appendtoks
\let\normalcap\cap % mathmode cap
\let\cap\autocap
\to \everydump
\let\kap\cap % for old times sake
\let\Caps\SmallCapped % for old times sake
\let\mixedcaps\pseudoMixedCapped
\let\normalsmallcapped\smallcapped
\let\normalWORD \WORD
\let\normalword \word
\let\font_style_normalsmallcapped\font_style_smallcapped
\let\font_style_normalWORD \WORD
\let\font_style_normalword \word
%D Further tweaks
\let\normalsmallcapped\smallcapped
\appendtoks
\ifx\currentcapitals\empty
\doifelse{\directcapitalsparameter\c!title}\v!yes
{\definealternativestyle[\v!capital ][\font_style_normalsmallcapped][\font_style_normalsmallcapped]%
\definealternativestyle[\v!smallcaps][\setsmallcaps][\setsmallcaps]}
{\definealternativestyle[\v!capital ][\font_style_normalsmallcapped][\font_style_normalWORD]%
\definealternativestyle[\v!smallcaps][\setsmallcaps][\font_style_normalWORD]}%
\doifelse{\directcapitalsparameter\s!sc}\v!yes
\userealcaps
\usepseudocaps
\fi
\to \everysetupcapitals
\let\uppercased\normalWORD
\let\lowercased\normalword
\setupcapitals
[\c!title=\v!yes,
\c!style=\tx,
\s!sc=\v!no] % no \c!sc any longer
% \definefont
% [MixedCaps]
% [\v_font_string_a\v_font_string_c*default cp \the\exheight]
%
% \definefont
% [MixedCaps]
% [MixedCaps*default cp \the\exheight]
\definefontfeature
[mixeddefault]
[default]
[extend=1.2]
\definefont
[MixedCaps]
[CurrentFont*default,mixeddefault cp \the\exheight]
\setupcapitals
[\v!mixed]
[\c!style=MixedCaps]
% \definestartstop is not yet in available at core-spa time
%
% \startrandomized \input tufte \stoprandomized
%
% \definestartstop[randomized][\c!before=\dosetattribute{case}{8},\c!after=]
\unexpanded\def\randomizetext{\groupedcommand{\attribute\caseattribute\pluseight}{}}
\definestartstop[randomized][\c!before=\dosetattribute{case}{8},\c!after=]
\protect \endinput
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