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if not modules then modules = { } end modules ['cldf-int'] = {
version = 1.001,
comment = "companion to mult-clm.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- another experiment
-- needs upgrading
-- needs checking
-- todo: multilingual
local format, insert, remove, concat = string.format, table.insert, table.remove, table.concat
local unpack = unpack or table.unpack
local catcodenumbers = catcodes.numbers
local ctxcatcodes = catcodenumbers.ctxcatcodes
local vrbcatcodes = catcodenumbers.vrbcatcodes
local context = context
local contextsprint = context.sprint
local trace_define = false trackers.register("context.define", function(v) trace_define = v end)
interfaces = interfaces or { }
_clmh_ = utilities.parsers.settings_to_hash
_clma_ = utilities.parsers.settings_to_array
local starters, stoppers, macros, stack = { }, { }, { }, { }
local checkers = {
[0] = "",
"\\dosingleempty",
"\\dodoubleempty",
"\\dotripleempty",
"\\doquadrupleempty",
"\\doquintupleempty",
"\\dosixtupleempty",
}
function _clmm_(name,...)
macros[name](...)
end
function _clmb_(name,...)
local sn = stack[name]
insert(sn,{...})
starters[name](...)
end
function _clme_(name)
local sn = stack[name]
local sv = remove(sn)
if sv then
stoppers[name](unpack(sv))
else
-- nesting error
end
end
_clmn_ = tonumber
local estart = interfaces.elements.start
local estop = interfaces.elements.stop
-- this is a bit old definition ... needs to be modernized
function interfaces.definecommand(name,specification) -- name is optional
if type(name) == "table" then
specification = name
name = specification.name
end
if name and specification then
local arguments = specification.arguments
local na = (arguments and #arguments) or 0
local environment = specification.environment
if na == 0 then
if environment then
contextsprint(ctxcatcodes,"\\setuvalue{",estart,name,"}{\\ctxlua{_clmb_('",name,"')}}")
contextsprint(ctxcatcodes,"\\setuvalue{",estop, name,"}{\\ctxlua{_clme_('",name,"')}}")
end
if not environment or environment == "both" then
contextsprint(ctxcatcodes,"\\setuvalue{", name,"}{\\ctxlua{_clmm_('",name,"')}}")
end
else
-- we could flush immediate but tracing is bad then
stack[name] = { }
local opt, done = 0, false
local snippets = { } -- we can reuse it
local mkivdo = "\\mkivdo" .. name -- maybe clddo
snippets[#snippets+1] = "\\def"
snippets[#snippets+1] = mkivdo
for i=1,na do
local a = arguments[i]
local variant = a[1]
if variant == "option" then
snippets[#snippets+1] = "[#"
snippets[#snippets+1] = i
snippets[#snippets+1] = "]"
if not done then
opt = opt + 1
end
else
done = true -- no more optional checking after this
snippets[#snippets+1] = "#"
snippets[#snippets+1] = i
end
end
if environment then
snippets[#snippets+1] = "{\\ctxlua{_clmb_('"
snippets[#snippets+1] = name
snippets[#snippets+1] = "'"
else
snippets[#snippets+1] = "{\\ctxlua{_clmm_('"
snippets[#snippets+1] = name
snippets[#snippets+1] = "'"
end
for i=1,na do
local a = arguments[i]
local variant = a[2]
if variant == "list" then
snippets[#snippets+1] = ",_clma_([[#"
snippets[#snippets+1] = i
snippets[#snippets+1] = "]])"
elseif variant == "hash" then
snippets[#snippets+1] = ",_clmh_([[#"
snippets[#snippets+1] = i
snippets[#snippets+1] = "]])"
elseif variant == "number" then
snippets[#snippets+1] = ",_clmn_([[#"
snippets[#snippets+1] = i
snippets[#snippets+1] = "]])"
else
snippets[#snippets+1] = ",[[#"
snippets[#snippets+1] = i
snippets[#snippets+1] = "]]"
end
end
snippets[#snippets+1] = ")}}"
contextsprint(ctxcatcodes,unpack(snippets))
if environment then
-- needs checking
contextsprint(ctxcatcodes,"\\setuvalue{",estart,name,"}{",checkers[opt],mkivdo,"}")
contextsprint(ctxcatcodes,"\\setuvalue{",estop, name,"}{\\ctxlua{_clme_('",name,"')}}")
end
if not environment or environment == "both" then
contextsprint(ctxcatcodes,"\\setuvalue{", name,"}{",checkers[opt],mkivdo,"}")
end
end
if environment then
starters[name] = specification.starter
stoppers[name] = specification.stopper
else
macros[name] = specification.macro
end
end
end
function interfaces.tolist(t)
local r = { }
for i=1,#t do
r[i] = t[i]
end
local n = #r
for k,v in table.sortedhash(t) do
if type(k) ~= "number" then
n = n + 1
r[n] = k .. "=" .. v
end
end
return concat(r,", ")
end
-- \startluacode
-- function test(opt_1, opt_2, arg_1)
-- context.startnarrower()
-- context("options 1: %s",interfaces.tolist(opt_1))
-- context.par()
-- context("options 2: %s",interfaces.tolist(opt_2))
-- context.par()
-- context("argument 1: %s",arg_1)
-- context.stopnarrower()
-- end
--
-- interfaces.definecommand {
-- name = "test",
-- arguments = {
-- { "option", "list" },
-- { "option", "hash" },
-- { "content", "string" },
-- },
-- macro = test,
-- }
-- \stopluacode
--
-- test: \test[1][a=3]{whatever}
--
-- \startluacode
-- local function startmore(opt_1)
-- context.startnarrower()
-- context("start more, options: %s",interfaces.tolist(opt_1))
-- context.startnarrower()
-- end
--
-- local function stopmore(opt_1)
-- context.stopnarrower()
-- context("stop more, options: %s",interfaces.tolist(opt_1))
-- context.stopnarrower()
-- end
--
-- interfaces.definecommand ( "more", {
-- environment = true,
-- arguments = {
-- { "option", "list" },
-- },
-- starter = startmore,
-- stopper = stopmore,
-- } )
-- \stopluacode
--
-- more: \startmore[1] one \startmore[2] two \stopmore one \stopmore
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