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if not modules then modules = { } end modules ['util-lua'] = {
version = 1.001,
comment = "companion to luat-lib.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
utilities = utilities or {}
utilities.lua = utilities.lua or { }
utilities.report = logs and logs.reporter("system") or print
local function stupidcompile(luafile,lucfile)
local data = io.loaddata(luafile)
if data and data ~= "" then
data = string.dump(data)
if data and data ~= "" then
io.savedata(lucfile,data)
end
end
end
function utilities.lua.compile(luafile,lucfile,cleanup,strip,fallback) -- defaults: cleanup=false strip=true
utilities.report("lua: compiling %s into %s",luafile,lucfile)
os.remove(lucfile)
local command = "-o " .. string.quoted(lucfile) .. " " .. string.quoted(luafile)
if strip ~= false then
command = "-s " .. command
end
local done = os.spawn("texluac " .. command) == 0 -- or os.spawn("luac " .. command) == 0
if not done and fallback then
utilities.report("lua: dumping %s into %s (unstripped)",luafile,lucfile)
stupidcompile(luafile,lucfile) -- maybe use the stripper we have elsewhere
cleanup = false -- better see how worse it is
end
if done and cleanup == true and lfs.isfile(lucfile) and lfs.isfile(luafile) then
utilities.report("lua: removing %s",luafile)
os.remove(luafile)
end
return done
end
--~ local getmetatable, type = getmetatable, type
--~ local types = { }
--~ function utilities.lua.registerdatatype(d,name)
--~ types[getmetatable(d)] = name
--~ end
--~ function utilities.lua.datatype(d)
--~ local t = type(d)
--~ if t == "userdata" then
--~ local m = getmetatable(d)
--~ return m and types[m] or "userdata"
--~ else
--~ return t
--~ end
--~ end
--~ utilities.lua.registerdatatype(lpeg.P("!"),"lpeg")
--~ print(utilities.lua.datatype(lpeg.P("oeps")))
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