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%D \module
%D [ file=s-fnt-25,
%D version=2009.01.25,
%D title=\CONTEXT\ Style File,
%D subtitle=Math Glyph Checking,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\def\enableshowmathfontvirtual
{\ctxlua{fonts.constructors.autocleanup=false}}
\def\showmathfontcharacters
{\dodoubleempty\doshowmathfontcharacters}
\def\doshowmathfontcharacters[#1][#2]%
{\begingroup
\dontcomplain
\doifelsenothing{#1}
{\definedfont[MathRoman*math-text]}
{\definedfont[#1]}%
\doifelsenothing{#2}
{\ctxlua{document.showmathfont(font.current())}}
{\def\dodoshowmathfontcharacters##1{\ctxlua{document.showmathfont(font.current(),##1)}}%
\processcommalist[#2]\dodoshowmathfontcharacters}%
\endgroup}
\def\startmathfontlist
{\startpacked}
\def\stopmathfontlist
{\stoppacked}
\def\startmathfontlistentry
{\blank
\begingroup}
\def\stopmathfontlistentry
{\endgroup
\blank}
\def\mathfontlistentryhexdectit#1#2#3%
{#1: \char#2\enspace\ruledhbox{\char#2}\enspace#3\par
\advance\leftskip 1em\relax}
\def\mathfontlistentrywdhtdpic#1#2#3#4%
{width: #1, height: #2, depth: #3, italic: #4\par}
\def\mathfontlistentryresource#1%
{virtual: #1\par}
\def\mathfontlistentrynext#1#2%
{#1~\ruledhbox{\char#2}}
\def\mathfontlistentrynextlist#1%
{next: #1\par}
\def\fontlistentryvariants#1#2%
{#1~\ruledhbox{\char#2}}
\def\mathfontlistentryvariantslist#1%
{variants: #1\par}
\def\mathfontlistentrynextvariantslist#1#2%
{next: #1 => variants: #2\par}
\def\mathfontlistentryclassname#1#2%
{mathclass: #1, mathname: #2\par}
\def\mathfontlistentrysymbol#1#2%
{mathsymbol: #1~\ruledhbox{\char#2}\par}
\startluacode
local concat = table.concat
local format, lower = string.format, string.lower
local fontdata = fonts.hashes.identifiers
function document.showmathfont(id,slot)
local data = characters.data
local tfmdata = fontdata[id]
local characters = tfmdata.characters
local sorted = (slot and { slot }) or table.sortedkeys(characters)
local virtual, names = tfmdata.properties.virtualized, { }
if virtual then
for k, v in ipairs(tfmdata.fonts) do
local id = v.id
local name = fontdata[id].properties.name
names[k] = (name and file.basename(name)) or id
end
end
local round = math.round
local limited = true
for _, s in next, sorted do
if not limited or s < 0xF0000 then
local char = characters[s]
if char then
local info = data[s]
local cnext, cvert_variants, choriz_variants = char.next, char.vert_variants, char.horiz_variants
context.startmathfontlistentry()
context.mathfontlistentryhexdectit(format("U+%05X",s),s,lower(info.description or "no description, private to font"))
context.mathfontlistentrywdhtdpic(round(char.width or 0),round(char.height or 0),round(char.depth or 0),round(char.italic or 0))
if virtual then
local commands = char.commands
if commands then
local t = { }
for i=1,#commands do
local ci = commands[i]
if ci[1] == "slot" then
local fnt, idx = ci[2], ci[3]
t[#t+1] = format("%s/%0X",names[fnt] or fnt,idx)
end
end
if #t > 0 then
context.mathfontlistentryresource(concat(t,", "))
end
end
end
if info.mathclass then
context.mathfontlistentryclassname(info.mathclass,info.mathname or "no name")
end
if info.mathspec then
for i=1,#info.mathspec do
context.mathfontlistentryclassname(info.mathspec[i].class,info.mathspec[i].name or "no name")
end
end
if info.mathsymbol then
context.mathfontlistentrysymbol(format("U+%05X",info.mathsymbol),info.mathsymbol)
end
if cnext then
local t, done = { }, { }
while cnext do
if done[cnext] then
t[#t+1] = "CYCLE"
break
else
done[cnext] = true
t[#t+1] = context.nested.mathfontlistentrynext(format("U+%05X",cnext),cnext)
cnext = characters[cnext]
cvert_variants = cnext.vert_variants or cvert_variants
choriz_variants = cnext.horiz_variants or choriz_variants
if cnext then
cnext = cnext.next
end
end
end
cnext = t
end
if cvert_variants then
local t = { }
for k, v in next, cvert_variants do
t[#t+1] = context.nested.fontlistentryvariants(format("U+%05X",v.glyph),v.glyph)
end
cvert_variants = t
end
if choriz_variants then
local t = { }
for k, v in next, choriz_variants do
t[#t+1] = context.nested.fontlistentryvariants(format("U+%05X",v.glyph),v.glyph)
end
choriz_variants = t
end
local cvariants = choriz_variants or cvert_variants
if cvariants and cnext then
context.mathfontlistentrynextvariantslist(concat(cnext," => "),concat(cvariants," => "))
else
if cnext then
context.mathfontlistentrynextlist(concat(cnext," => "))
end
if cvariants then
context.mathfontlistentryvariantslist(concat(cvariants," "))
end
end
context.stopmathfontlistentry()
end
end
end
end
\stopluacode
\doifnotmode{demo}{\endinput}
\starttext
\setupbodyfont[cambria, 12pt] \showmathfontcharacters
% \setupbodyfont[lmvirtual,12pt] \showmathfontcharacters
% \setupbodyfont[pxvirtual,12pt] \showmathfontcharacters
% \setupbodyfont[txvirtual,12pt] \showmathfontcharacters
% \setupbodyfont[palatino, 10pt] \showmathfontcharacters
% \setupbodyfont[mathtimes,12pt] \showmathfontcharacters
% \setupbodyfont[stix, 12pt] \showmathfontcharacters
% \setupbodyfont[xits, 12pt] \showmathfontcharacters
% \setupbodyfont[lucida, 12pt] \showmathfontcharacters
\stoptext
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