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if not modules then modules = { } end modules ['x-ct'] = {
version = 1.001,
comment = "companion to x-ct.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local xmlsprint, xmlfilter, xmlcollected = xml.sprint, xml.filter, xml.collected
local texsprint, ctxcatcodes = tex.sprint, tex.ctxcatcodes
local format, concat, rep, find = string.format, table.concat, string.rep, string.find
lxml.context = { }
local halignments = {
left = 'l',
flushleft = 'l',
right = 'r',
flushright = 'r',
center = 'c',
middle = 'c',
centre = 'c',
justify = '',
}
local function roottemplate(root)
local rt = root.at.template
if rt then
if not find(rt,"|") then
rt = gsub(rt,",","|")
end
if not find(rt,"^|") then rt = "|" .. rt end
if not find(rt,"|$") then rt = rt .. "|" end
end
return rt
end
local function specifiedtemplate(root,templatespec)
local template = { }
for e in xmlcollected(root,templatespec) do
local at = e.at
local tm = halignments[at.align] or ""
if toboolean(at.paragraph) then
tm = tm .. "p"
end
template[#template+1] = tm
end
if #template > 0 then
return "|" .. concat(template,"|") .. "|"
else
return nil
end
end
local function autotemplate(root,rowspec,cellspec)
local max = 0
for e in xmlcollected(root,rowspec) do
local n = xml.count(e,cellspec)
if n > max then max = n end
end
if max == 2 then
return "|l|p|"
elseif max > 0 then
return "|" .. rep("p|",max)
else
return nil
end
end
local defaulttemplate = "|l|p|"
function lxml.context.tabulate(root,namespace)
if not root then
return
else
root = lxml.id(root)
end
local prefix = (namespace or "context") .. ":"
local templatespec = "/" .. prefix .. "template" .. "/" .. prefix .. "column"
local bodyrowspec = "/" .. prefix .. "body" .. "/" .. prefix .. "row"
local cellspec = "/" .. prefix .. "cell"
local template =
roottemplate (root) or
specifiedtemplate (root,templatespec) or
autotemplate (root,bodyrowspec,cellspec) or
defaulttemplate
-- todo: head and foot
--~ lxml.directives.before(root,'cdx')
--~ texsprint(ctxcatcodes, "\\bgroup")
--~ lxml.directives.setup(root,'cdx')
--~ texsprint(ctxcatcodes, format("\\starttabulate[%s]",template))
--~ for e in xmlcollected(root,bodyrowspec) do
--~ texsprint(ctxcatcodes, "\\NC ")
--~ for e in xmlcollected(e,cellspec) do
--~ texsprint(xml.text(e)) -- use some xmlprint
--~ texsprint(ctxcatcodes, "\\NC")
--~ end
--~ texsprint(ctxcatcodes, "\\NR")
--~ end
--~ texsprint(ctxcatcodes, "\\stoptabulate")
--~ texsprint(ctxcatcodes, "\\egroup")
--~ lxml.directives.after(root,'cdx')
local NC, NR = context.NC, context.NR
lxml.directives.before(root,'cdx')
context.bgroup()
lxml.directives.setup(root,'cdx')
context.starttabulate { template }
for e in xmlcollected(root,bodyrowspec) do
NC()
for e in xmlcollected(e,cellspec) do
texsprint(xml.text(e)) -- test: xmlcprint(e)
NC()
end
NR()
end
context.stoptabulate()
context.egroup()
lxml.directives.after(root,'cdx')
end
function lxml.context.combination(root,namespace)
if not root then
return
else
root = lxml.id(root)
end
local prefix = (namespace or "context") .. ":"
local pairspec = "/" .. prefix .. "pair"
local contentspec = "/" .. prefix .. "content" .. "/text()"
local captionspec = "/" .. prefix .. "caption" .. "/text()"
local nx, ny = root.at.nx, root.at.ny
if not (nx or ny) then
nx = xml.count(root,pairspec) or 2
end
local template = format("%s*%s", nx or 1, ny or 1)
-- todo: alignments
--~ lxml.directives.before(root,'cdx')
--~ texsprint(ctxcatcodes, "\\bgroup")
--~ lxml.directives.setup(root,'cdx')
--~ texsprint(ctxcatcodes, "\\startcombination[",template,"]")
--~ for e in xmlcollected(root,pairspec) do
--~ texsprint(ctxcatcodes,"{")
--~ xmlfilter(e,contentspec)
--~ texsprint(ctxcatcodes,"}{")
--~ xmlfilter(e,captionspec)
--~ texsprint(ctxcatcodes,"}")
--~ end
--~ texsprint(ctxcatcodes, "\\stopcombination")
--~ texsprint(ctxcatcodes, "\\egroup")
--~ lxml.directives.after(root,'cdx')
lxml.directives.before(root,'cdx')
context.bgroup()
lxml.directives.setup(root,'cdx')
context.startcombination { template }
for e in xmlcollected(root,pairspec) do
texsprint(ctxcatcodes,"{")
xmlfilter(e,contentspec)
texsprint(ctxcatcodes,"}{")
xmlfilter(e,captionspec)
texsprint(ctxcatcodes,"}")
end
context.stopcombination()
context.egroup()
lxml.directives.after(root,'cdx')
end
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