git: purgatorio

ref: 76b565d8b219c8db94a882e93725b4ab735414de
dir: /module/env.m/

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Env: module {
	getenv:	fn(var: string): string;		# returns nil if var not set
	setenv:	fn(var: string, val: string): int;	# returns -1 on failure
	getall: fn(): list of (string, string);

	clone:	fn(): int;					# forks a copy of the environment, returns -1 on failure
	new:		fn(): int;					# sets up new empty environment, returns -1 on failure

	PATH:	con "/dis/lib/env.dis";
};