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if not modules then modules = { } end modules ['luat-exe'] = {
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"
}
-- this module needs checking (very old and never really used, not even enabled)
local match, find, gmatch = string.match, string.find, string.gmatch
local concat = table.concat
local select = select
local report_executers = logs.reporter("system","executers")
resolvers.executers = resolvers.executers or { }
local executers = resolvers.executers
local permitted = { }
local osexecute = os.execute
local osexec = os.exec
local osspawn = os.spawn
local iopopen = io.popen
local execute = osexecute
local exec = osexec
local spawn = osspawn
local popen = iopopen
local function register(...)
for k=1,select("#",...) do
local v = select(k,...)
permitted[#permitted+1] = v == "*" and ".*" or v
end
end
local function prepare(...)
-- todo: make more clever first split
local t = { ... }
local n = #n
local one = t[1]
if n == 1 then
if type(one) == 'table' then
return one, concat(t," ",2,n)
else
local name, arguments = match(one,"^(.-)%s+(.+)$")
if name and arguments then
return name, arguments
else
return one, ""
end
end
else
return one, concat(t," ",2,n)
end
end
local function executer(action)
return function(...)
local name, arguments = prepare(...)
for k=1,#permitted do
local v = permitted[k]
if find(name,v) then
return action(name .. " " .. arguments)
else
report_executers("not permitted: %s %s",name,arguments)
end
end
return action("")
end
end
local function finalize() -- todo: os.exec, todo: report ipv print
execute = executer(osexecute)
exec = executer(osexec)
spawn = executer(osspawn)
popen = executer(iopopen)
finalize = function()
report_executers("already finalized")
end
register = function()
report_executers("already finalized, no registration permitted")
end
os.execute = execute
os.exec = exec
os.spawn = spawn
io.popen = popen
end
executers.finalize = function(...) return finalize(...) end
executers.register = function(...) return register(...) end
executers.execute = function(...) return execute (...) end
executers.exec = function(...) return exec (...) end
executers.spawn = function(...) return spawn (...) end
executers.popen = function(...) return popen (...) end
local execution_mode directives.register("system.executionmode", function(v) execution_mode = v end)
local execution_list directives.register("system.executionlist", function(v) execution_list = v end)
function executers.check()
if execution_mode == "none" then
finalize()
elseif execution_mode == "list" and execution_list ~= "" then
for s in gmatch("[^%s,]",execution_list) do
register(s)
end
finalize()
else
-- all
end
end
--~ resolvers.executers.register('.*')
--~ resolvers.executers.register('*')
--~ resolvers.executers.register('dir','ls')
--~ resolvers.executers.register('dir')
--~ resolvers.executers.finalize()
--~ resolvers.executers.execute('dir',"*.tex")
--~ resolvers.executers.execute("dir *.tex")
--~ resolvers.executers.execute("ls *.tex")
--~ os.execute('ls')
--~ resolvers.executers.check()
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