local shell=require("shell")
local tty=require("tty")
local text=require("text")
local sh=require("sh")

local args=shell.parse(...)

shell.prime()

if#args==0 then
local has_profile
local input_handler={hint=sh.hintHandler}
while true do
if io.stdin.tty and io.stdout.tty then
if not has_profile then
has_profile=true
dofile("/etc/profile.lua")
end
if tty.getCursor()>1 then
io.write("\n")
end
io.write(sh.expand(os.getenv("PS1")or"$ "))
end
tty.window.cursor=input_handler
local command=io.stdin:readLine(false)
tty.window.cursor=nil
if command then
command=text.trim(command)
if command=="exit"then
return
elseif command~=""then

local result,reason=sh.execute(_ENV,command)
if not result and reason then
io.stderr:write(tostring(reason),"\n")
end
end
elseif command==nil then
return
end
end
else

return sh.execute(...)
end