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%D \module
%D [ file=s-math-extensibles.mkiv,
%D version=2013.02.03,
%D title=\CONTEXT\ Style File,
%D subtitle=Math Stackers Checking,
%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.
%D This module provides a macro that will typeset a table of (horizontal)
%D extensibles including some tracing. You can set up the \type {demo}
%D stacker category to tweak things.
%D
%D \starttyping
%D \showmathextensibles[alternative=a|b]
%D \stoptyping
\startmodule[math-extensibles]
\unprotect
\definemathstackers
[demo]
[math]
[\c!offset=\v!max]
\installcorenamespace{modulemathextensibles}
\installcorenamespace{modulemathextensiblesalternative}
\installdirectsetuphandler \??modulemathextensibles {modulemathextensibles}
\setupmodulemathextensibles
[\c!alternative=\v!a]
\unexpanded\def\showmathextensibles
{\dosingleempty\module_math_extensibles_show_all}
\def\module_math_extensibles_show_all[#1]%
{\begingroup
\setupcurrentmodulemathextensibles[#1]%
\expandnamespacevalue\??modulemathextensiblesalternative\c!alternative\v!a
\endgroup}
\def\modulemathextensiblesalternativea#1#2#3%
{\NC U+#1
\NC \filledhboxm{\math{\char"#1}}
\NC \hbox{\math{\mathextensible[demo]{"#1}{top}{bottom}}}
\NC \hbox{\math{\mathextensible[demo]{"#1}{}{bottom}}}
\NC \hbox{\math{\mathextensible[demo]{"#1}{top}{}}}
\NC \nohyphens \veryraggedright #2
\NC\NR}
\setvalue{\??modulemathextensiblesalternative\v!a}%
{\enabletrackers[math.stackers.texts]
\starttabulate[|Tl|l|l|l|l|Tp|]
\ctxlua { moduledata.math.extensibles.show {
command = "modulemathextensiblesalternativea",
} }
\stoptabulate
\disabletrackers[math.stackers.texts]}
\def\modulemathextensiblesalternativeb#1#2#3%
{\NC U+#1
\NC \math{\char"#1}
\NC \nohyphens \veryraggedright #3
\NC \NR}
\setvalue{\??modulemathextensiblesalternative\v!b}%
{\enabletrackers[math.stackers.texts]
\starttabulate[|Tl|l|Tp|]
\ctxlua { moduledata.math.extensibles.show {
command = "modulemathextensiblesalternativeb",
sparse = true,
} }
\stoptabulate
\disabletrackers[math.stackers.texts]}
\startluacode
moduledata.math = moduledata.math or { }
moduledata.math.extensibles = moduledata.math.extensibles or { }
function moduledata.math.extensibles.show(settings)
local command = settings.command
local sparse = settings.sparse
for k, v in table.sortedhash(characters.data) do
local mathextensible = v.mathextensible
if mathextensible == "r" or mathextensible == "l" or mathextensible == "h" then
local names = { }
local mathname = v.mathname
if mathname then
names[#names+1] = v.mathclass .. ":" .. mathname
end
local mathspec = v.mathspec
if mathspec then
for i=1,#mathspec do
local v = mathspec[i]
names[#names+1] = v.class .. ":" .. v.name
end
end
local mathfiller = v.mathfiller
if mathfiller then
names[#names+1] = "filler:" .. mathfiller
end
if not sparse or #names > 0 then
context[command](string.format("%04X",k),v.description,table.concat(names," "))
end
end
end
end
\stopluacode
\protect
\stopmodule
\continueifinputfile{s-math-extensibles.mkiv}
\setuplayout
[width=middle,
height=middle,
footer=0cm,
backspace=1.5cm,
topspace=1.5cm]
\setuphead[chapter][style=\bfc]
\setuphead[section][style=\bfa]
\starttext
\dowith {a,b} {
\page \title {Latin Modern} \showmathextensibles[alternative=#1]
\page \setupbodyfont[pagella] \title {Pagella} \showmathextensibles[alternative=#1]
\page \setupbodyfont[termes] \title {Termes} \showmathextensibles[alternative=#1]
\page \setupbodyfont[dejavu] \title {Xits} \showmathextensibles[alternative=#1]
\page \setupbodyfont[cambria] \title {Cambria} \showmathextensibles[alternative=#1]
\page \setupbodyfont[lucidaot] \title {Lucida} \showmathextensibles[alternative=#1]
}
\stoptext
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