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|
if not modules then modules = { } end modules ['node-tsk'] = {
version = 1.001,
comment = "companion to node-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local trace_tasks = false trackers.register("tasks", function(v) trace_tasks = v end)
tasks = tasks or { }
tasks.data = tasks.data or { }
function tasks.new(name,list)
local tasklist = sequencer.reset()
tasks.data[name] = { list = tasklist, runner = false }
for l=1,#list do
sequencer.appendgroup(tasklist,list[l])
end
end
function tasks.restart(name,group)
local data = tasks.data[name]
if data then
data.runner = false
end
end
function tasks.appendaction(name,group,action,where,kind)
local data = tasks.data[name]
if data then
sequencer.appendaction(data.list,group,action,where,kind)
data.runner = false
end
end
function tasks.prependaction(name,group,action,where,kind)
local data = tasks.data[name]
if data then
sequencer.prependaction(data.list,group,action,where,kind)
data.runner = false
end
end
function tasks.removeaction(name,group,action)
local data = tasks.data[name]
if data then
sequencer.removeaction(data.list,group,action)
data.runner = false
end
end
function tasks.showactions(name,group,action,where,kind)
local data = tasks.data[name]
if data then
logs.report("nodes","task %s, list:\n%s",name,sequencer.nodeprocessor(data.list))
end
end
-- Optimizing for the number of arguments makes sense, but getting rid of
-- the nested call (no problem but then we also need to register the
-- callback with this mechanism so that it gets updated) does not save
-- much time (24K calls on mk.tex).
local created, total = 0, 0
statistics.register("node list callback tasks", function()
if total > 0 then
return string.format("%s unique tasks, %s created, %s calls",table.count(tasks.data),created,total)
else
return nil
end
end)
function tasks.actions(name,n) -- we optimize for the number or arguments (no ...)
local data = tasks.data[name]
if data then
if n == 0 then
return function(head)
local runner = data.runner
total = total + 1 -- will go away
if not runner then
created = created + 1
if trace_tasks then
logs.report("nodes","creating task runner '%s'",name)
end
runner = sequencer.compile(data.list,sequencer.nodeprocessor,0)
data.runner = runner
end
return runner(head)
end
elseif n == 1 then
return function(head,one)
total = total + 1 -- will go away
local runner = data.runner
if not runner then
created = created + 1
if trace_tasks then
logs.report("nodes","creating task runner '%s'",name)
end
runner = sequencer.compile(data.list,sequencer.nodeprocessor,1)
data.runner = runner
end
return runner(head,one)
end
elseif n == 2 then
return function(head,one,two)
total = total + 1 -- will go away
local runner = data.runner
if not runner then
created = created + 1
if trace_tasks then
logs.report("nodes","creating task runner '%s'",name)
end
runner = sequencer.compile(data.list,sequencer.nodeprocessor,2)
data.runner = runner
end
return runner(head,one,two)
end
else
return function(head,...)
total = total + 1 -- will go away
local runner = data.runner
if not runner then
created = created + 1
if trace_tasks then
logs.report("nodes","creating task runner '%s'",name)
end
runner = sequencer.compile(data.list,sequencer.nodeprocessor,3)
data.runner = runner
end
return runner(head,...)
end
end
else
return nil
end
end
tasks.new (
"processors",
{
"before", -- for users
"normalizers",
"characters",
"words",
"fonts",
"lists",
"after", -- for users
}
)
tasks.new (
"finalizers",
{
"before", -- for users
"normalizers",
-- "characters",
-- "finishers",
"fonts",
"lists",
"after", -- for users
}
)
tasks.new (
"shipouts",
{
"before", -- for users
"normalizers",
"finishers",
"after", -- for users
}
)
|
