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%D \module
%D [ file=x-cals,
%D version=2007.09.05,
%D title=\CONTEXT\ XML Modules,
%D subtitle=Cals table renderer,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE}]
%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 XML Macros (cals tables)}
\startluacode
do
lxml.cals = { }
lxml.cals.ignore_widths = false
local halignments = {
left = "flushleft",
right = "flushright",
center = "middle",
centre = "middle",
justify = "normal",
}
local valignments = {
top = "high",
bottom = "low",
middle = "lohi",
}
local function getspecs(root, pattern, names, widths)
local ignore_widths = lxml.cals.ignore_widths
for r, d, k in xml.elements(root,pattern) do
local dk = d[k]
local at = dk.at
local column = at.colnum
if column then
if not ignore_widths then
local width = at.colwidth
if width then
widths[tonumber(column)] = width:lower()
end
end
local name = at.colname
if name then
names[name] = tonumber(column)
end
end
end
end
local function getspans(root, pattern, names, spans)
for r, d, k in xml.elements(root,pattern) do
local dk = d[k]
local at = dk.at
local name, namest, nameend = at.colname, names[at.namest or "?"], names[at.nameend or "?"]
if name and namest and nameend then
spans[name] = tonumber(nameend) - tonumber(namest) + 1
end
end
end
local texsprint = tex.sprint
function lxml.cals.table(root,namespace)
local prefix = (namespace or "cals") .. ":"
local tgroupspec = "/" .. prefix .. "tgroup"
local colspec = "/" .. prefix .. "colspec"
local spanspec = "/" .. prefix .. "spanspec"
local hcolspec = "/" .. prefix .. "thead" .. "/" ..prefix .. "colspec"
local bcolspec = "/" .. prefix .. "tbody" .. "/" ..prefix .. "colspec"
local fcolspec = "/" .. prefix .. "tfoot" .. "/" ..prefix .. "colspec"
local entryspec = "/" .. prefix .. "entry" .. "|" ..prefix .. "entrytbl"
local hrowspec = "/" .. prefix .. "thead" .. "/" ..prefix .. "row"
local browspec = "/" .. prefix .. "tbody" .. "/" ..prefix .. "row"
local frowspec = "/" .. prefix .. "tfoot" .. "/" ..prefix .. "row"
local function tablepart(root, xcolspec, xrowspec, before, after)
texsprint(tex.ctxcatcodes,before)
local at = root.at
local pphalign, ppvalign = at.align, at.valign
local names, widths, spans = { }, { }, { }
getspecs(root, colspec , names, widths)
getspecs(root, xcolspec, names, widths)
getspans(root, spanspec, names, spans)
for r, d, k in xml.elements(root,xrowspec) do
texsprint(tex.ctxcatcodes,"\\bTR")
local dk = d[k]
local at = dk.at
local phalign, pvalign = at.align or pphalign, at.valign or ppvalign -- todo: __p__ test
local col = 1
for rr, dd, kk in xml.elements(dk,entryspec) do
local dk = dd[kk]
if dk.tg == "entrytbl" then
texsprint(tex.ctxcatcodes,"\\bTD{")
lxml.cals.table(dk)
texsprint(tex.ctxcatcodes,"}\\eTD")
col = col + 1
else
local at = dk.at
local b, e, s, m = names[at.namest or "?"], names[at.nameend or "?"], spans[at.spanname or "?"], at.morerows
local halign, valign = at.align or phalign, at.valign or pvalign
if b and e then
s = e - b + 1
end
if halign then
halign = halignments[halign]
end
if valign then
valign = valignments[valign]
end
local width = widths[col]
if s or m or halign or valign or width then
texsprint(tex.ctxcatcodes,string.format("\\bTD[nx=%s,ny=%s,align={%s,%s},width=%s]",
s or 1, (m or 0)+1, halign or "flushleft", valign or "high", width or "fit"))
else
texsprint(tex.ctxcatcodes,"\\bTD")
end
texsprint(xml.content(dk))
texsprint(tex.ctxcatcodes,"\\eTD")
col = col + (s or 1)
end
end
texsprint(tex.ctxcatcodes,"\\eTR")
end
texsprint(tex.ctxcatcodes,after)
end
for r, d, k in xml.elements(lxml.id(root),tgroupspec) do
local tgroup = d[k]
lxml.directives.before(root,"cdx") -- "cals:table"
texsprint(tex.ctxcatcodes, "\\bgroup")
lxml.directives.setup(root,"cdx") -- "cals:table"
texsprint(tex.ctxcatcodes, "\\bTABLE")
tablepart(tgroup, hcolspec, hrowspec, "\\bTABLEhead", "\\eTABLEhead")
tablepart(tgroup, bcolspec, browspec, "\\bTABLEbody", "\\eTABLEbody")
tablepart(tgroup, fcolspec, frowspec, "\\bTABLEfoot", "\\eTABLEfoot")
texsprint(tex.ctxcatcodes, "\\eTABLE")
texsprint(tex.ctxcatcodes, "\\egroup")
lxml.directives.after(root,"cdx") -- "cals:table"
end
end
end
\stopluacode
% \startxmlsetups xml:cals:process
% \xmlsetsetup {\xmldocument} {cals:table} {*}
% \stopxmlsetups
% \startxmlsetups cals:table
% \ctxlua{lxml.cals.table("#1")}
% \stopxmlsetups
% \xmlregistersetup{xml:cals:process}
\startxmlsetups xml:cals:process
\xmlsetfunction {\xmldocument} {cals:table} {lxml.cals.table}
\stopxmlsetups
\xmlregistersetup{xml:cals:process}
\xmlregisterns{cals}{cals}
\endinput
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