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Code Issues Releases Wiki Activity

commented loadfile-related functions, added require()

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This commit is contained in:
XeonSquared 2019-01-08 18:01:07 +11:00
parent 2c772b2987
commit d9cc184f84
1 changed files with 16 additions and 5 deletions
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21
module/loadfile.lua
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@ -1,12 +1,23 @@
function loadfile(p)
function loadfile(p) -- reads file *p* and returns a function if possible
local f = fs.open(p,"rb")
local c = f:read("*a")
f:close()
return load(c,p,"t")
end
function runfile(p,...)
loadfile(p)(...)
function runfile(p,...) -- runs file *p* with arbitrary arguments in the current thread
return loadfile(p)(...)
end
function spawnfile(p,n)
os.spawn(loadfile(p),n)
function spawnfile(p,n) -- spawns a new process from file *p* with name *n*
return os.spawn(loadfile(p),n)
end
function require(f) -- searches for a library with name *f* and returns what the library returns, if possible
local lib = os.getenv("LIB") or "/boot/lib"
for d in lib:gmatch("[^\n]+") do
if fs.exists(d.."/"..f) then
return runfile(d.."/"..f)
elseif fs.exists(d.."/"..f..".lua") then
return runfile(d.."/"..f..".lua")
end
end
error("library not found: "..f)
end