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-- version = 1.000,
-- comment = "companion to luametatex",
-- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-- copyright = "PRAGMA ADE / ConTeXt Development Team",
-- license = "see context related readme files"
-- If you copy or link 'luametatex' to 'texlua' and put this script in the same path
-- we have a more pure Lua runner (as with luatex and texlua).
-- todo: error trace
-- todo: protect these locals
local texlua_load = load
local texlua_loadfile = loadfile
local texlua_type = type
local texlua_xpcall = xpcall
local texlua_find = string.find
local texlua_dump = string.dump
local texlua_open = io.open
local texlua_print = print
local texlua_show = luac.print
function texlua_inspect(v)
if texlua_type(v) == "function" then
local ok, str = texlua_xpcall(texlua_dump,function() end,v)
if ok then
v = str
end
end
if type(v) == "string" then
texlua_show(v,true)
else
texlua_print(v)
end
end
local function main_execute(str,loader)
if str and str ~= "" then
local str = loader(str)
if texlua_type(str) == "function" then
str()
end
end
end
local function main_compile(str,loader,out,strip)
if str and str ~= "" then
local str = loader(str)
if texlua_type(str) == "function" then
str = texlua_dump(str,strip)
if type(out) == "string" and out ~= "" then
local f = texlua_open(out,"wb")
if f then
f:write(str)
f:close()
end
elseif out == true then
texlua_inspect(str)
else
texlua_print(str)
end
end
end
end
local function main_help()
texlua_print("LuaMetaTeX in Lua mode:")
texlua_print("")
texlua_print("-o 'filename' output filename")
texlua_print("-e 'string' execute loaded string")
texlua_print("-f 'filename' execute loaded file")
texlua_print("-d 'string' dump bytecode of loaded string")
texlua_print("-c 'filename' dump bytecode of loaded file")
texlua_print("-i 'string' list bytecode of loaded string")
texlua_print("-l 'filename' list bytecode of loaded file")
texlua_print("-s strip byte code")
texlua_print(" 'filename' execute loaded file")
end
local function main()
local i = 1
local o = ""
local s = false
while true do
local option = arg[i] or ""
if option == "" then
if i == 1 then
main_help()
end
break
elseif option == "-e" then
i = i + 1
main_execute(arg[i],texlua_load)
o = ""
s = false
elseif option == "-f" then
i = i + 1
main_execute(arg[i],texlua_loadfile)
o = ""
s = false
elseif option == "-d" then
i = i + 1
main_compile(arg[i],texlua_load,o,s)
o = ""
s = false
elseif option == "-c" then
i = i + 1
main_compile(arg[i],texlua_loadfile,o,s)
o = ""
s = false
elseif option == "-i" then
i = i + 1
main_compile(arg[i],texlua_load,true)
o = ""
s = false
elseif option == "-l" then
i = i + 1
main_compile(arg[i],texlua_loadfile,true)
o = ""
s = false
elseif option == "-s" then
s = true
elseif option == "-o" then
i = i + 1
o = arg[i] or ""
if texlua_find(o,"^%-") then
help()
break
end
elseif not texlua_find(option,"^%-") then
main_execute(option,texlua_loadfile)
break
else
main_help()
break
end
i = i + 1
end
end
main()
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