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if not modules then modules = { } end modules ['mlib-run'] = {
version = 1.001,
comment = "companion to mlib-ctx.tex",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files",
}
--~ cmyk -> done, native
--~ spot -> done, but needs reworking (simpler)
--~ multitone ->
--~ shade -> partly done, todo: cm
--~ figure -> done
--~ hyperlink -> low priority, easy
-- new * run
-- or
-- new * execute^1 * finish
-- a*[b,c] == b + a * (c-b)
--[[ldx--
<p>The directional helpers and pen analysis are more or less translated from the
<l n='c'/> code. It really helps that Taco know that source so well. Taco and I spent
quite some time on speeding up the <l n='lua'/> and <l n='c'/> code. There is not
much to gain, especially if on ekeeps in mind that when integrated in <l n='tex'/>
only a part of the time is spent in <l n='metapost'/>. Of course an integrated
approach is way faster than an external <l n='metapost'/> and processing time
nears zero.</p>
--ldx]]--
local format = string.format
metapost = metapost or { }
local function finder(name, mode, ftype)
if mode=="w" then
return name
elseif input.aux.qualified_path(name) then
return name
else
return input.find_file((texmf and texmf.instance) or instance,name,ftype)
end
end
metapost.finder = finder
--~ statistics = {
--~ ["hash_size"]=1774,
--~ ["main_memory"]=50237,
--~ ["max_in_open"]=5,
--~ ["param_size"]=4,
--~ }
metapost.parameters = {
hash_size = 100000,
main_memory = 2000000,
max_in_open = 50,
param_size = 100000,
}
metapost.exectime = metapost.exectime or { } -- hack
function metapost.make(name, target, version)
input.starttiming(mplib)
target = file.replacesuffix(target or name, "mem")
local mpx = mplib.new ( table.merged (
metapost.parameters,
{
ini_version = true,
find_file = finder,
job_name = file.stripsuffix(target),
}
) )
if mpx then
input.starttiming(metapost.exectime)
local result = mpx:execute(format('\\ ; boolean mplib ; mplib := true ; string mp_parent_version ; mp_parent_version := "%s" ; show mp_parent_version ; input %s ; dump ;', version or "unknown", name))
input.stoptiming(metapost.exectime)
if mpx then
mpx:finish()
end
end
input.stoptiming(mplib)
return mpx -- mpx = nil will free memory
end
function metapost.load(name)
input.starttiming(mplib)
local mpx = mplib.new ( table.merged (
metapost.parameters,
{
mem_name = file.replacesuffix(name,"mem"),
find_file = finder,
}
) )
if mpx then
input.starttiming(metapost.exectime)
mpx:execute("\\")
input.stoptiming(metapost.exectime)
end
input.stoptiming(mplib)
return mpx
end
function metapost.unload(mpx)
input.starttiming(mplib)
if mpx then
mpx:finish()
end
input.stoptiming(mplib)
end
function metapost.checkformat(mpsinput, mpsformat)
mpsinput = file.addsuffix(mpsinput or "metafun", "mp")
mpsformat = file.stripsuffix(file.basename(mpsformat or texconfig.formatname or tex.formatname or mpsinput))
local mpsbase = file.stripsuffix(file.basename(mpsinput))
if mpsbase ~= mpsformat then
mpsformat = mpsformat .. "-" .. mpsbase
end
mpsformat = file.addsuffix(mpsformat, "mem")
local pth = file.dirname(texconfig.formatname or "")
if pth ~= "" then
mpsformat = file.join(pth,mpsformat)
end
local the_version = environment.version or "unset version"
if io.exists(mpsformat) then
commands.writestatus("mplib", format("loading format: %s, name: %s", mpsinput, mpsformat))
local mpx = metapost.load(mpsformat)
if mpx then
local result = mpx:execute(format("show mp_parent_version ;"))
local version = result.log:match(">> *(.-)[\n\r]") or "unknown"
version = version:gsub("[\'\"]","")
if version ~= the_version then
commands.writestatus("mplib", format("version mismatch: %s <> %s", version or "unknown", the_version))
else
return mpx
end
end
end
commands.writestatus("mplib", format("making format: %s, name: %s", mpsinput, mpsformat))
metapost.make(mpsinput,mpsformat,the_version) -- somehow return ... fails here
if io.exists(mpsformat) then
commands.writestatus("mplib", format("loading format: %s, name: %s", mpsinput, mpsformat))
return metapost.load(mpsformat)
else
commands.writestatus("mplib", format("problems with format: %s, name: %s", mpsinput, mpsformat))
end
end
--~ if environment.initex then
--~ metapost.unload(metapost.checkformat("metafun"))
--~ end
local mpxformats = {}
function metapost.format(name)
local mpx = mpxformats[name]
if not mpx then
mpx = metapost.checkformat(name)
mpxformats[name] = mpx
end
return mpx
end
function metapost.reset(mpx)
if not mpx then
-- nothing
elseif type(mpx) == "string" then
if mpxformats[mpx] then
mpxformats[mpx]:finish()
mpxformats[mpx] = nil
end
else
for name=1,#mpxformats do
if mpxformats[name] == mpx then
mpxformats[name] = nil
break
end
end
mpx:finish()
end
end
metapost.showlog = false
function metapost.process(mpx, data, trialrun, flusher, multipass)
local converted, result = false, {}
if type(mpx) == "string" then
mpx = metapost.format(mpx) -- goody
end
if mpx and data then
input.starttiming(metapost)
if type(data) == "table" then
for i=1,#data do
local d = data[i]
if d then
input.starttiming(metapost.exectime)
result = mpx:execute(d)
input.stoptiming(metapost.exectime)
if not result then
metapost.report("mp error", "no result object returned")
elseif result.status > 0 then
local t, e, l = result.term, result.error, result.log
if t then
metapost.report("mp terminal",t)
end
if e then
metapost.report("mp error",e)
end
if not t and not e and l then
metapost.report("mp log",l)
else
metapost.report("mp error","unknown, no error, terminal or log messages")
end
elseif metapost.showlog then
metapost.report("mp info",result.term or "no terminal output")
elseif result.fig then
converted = metapost.convert(result, trialrun, flusher, multipass)
end
else
metapost.report("mp error", "invalid graphic component " .. i)
end
end
else
input.starttiming(metapost.exectime)
result = mpx:execute(data)
input.stoptiming(metapost.exectime)
-- todo: error message
if not result then
metapost.report("error", "no result object returned")
elseif result.status > 0 then
metapost.report("error",(result.term or "no-term") .. "\n" .. (result.error or "no-error"))
elseif metapost.showlog then
metapost.report("info",result.term or "no-term")
elseif result.fig then
converted = metapost.convert(result, trialrun, flusher, multipass)
end
end
input.stoptiming(metapost)
end
return converted, result
end
function metapost.convert(result, trialrun, multipass)
metapost.report('Warning','no converter set')
end
function metapost.report(...)
logs.report(...)
end
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