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use sys
use "extremum.use"
use "option.use"
use "sleq.use"
pkg std =
const getenv : (name : byte[:] -> option(byte[:]))
const getenvv : (name : byte[:], default : byte[:] -> byte[:])
;;
const getenv = {name
var n
for env in sys.__environment
n = min(name.len, env.len)
if sleq(name, env[:n]) && sleq(env[n:n+1], "=")
-> `Some env[n+1:]
;;
;;
-> `None
}
const getenvv = {name, default
match getenv(name)
| `Some v: -> v
| `None: -> default
;;
}
|
