ilo 26.5.0

ilo - the token-minimal programming language AI agents write
Documentation 
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-- allow-env-cap.ilo: demonstrates --allow-env capability flag (ILO-345).
--
-- Run with PATH and HOME allowed:
--   ilo run --allow-env=PATH,HOME examples/allow-env-cap.ilo main
--
-- Run with all env blocked (empty allowlist):
--   ilo run --allow-env= examples/allow-env-cap.ilo blocked-demo
--
-- Run without any --allow-env flag (permissive / legacy mode):
--   ilo run examples/allow-env-cap.ilo main

-- read-path: reads the PATH variable using the single-var `env` builtin.
-- Requires: --allow-env=PATH (or permissive mode, or --allow-env=*)
read-path>R t t
  env "PATH"

-- blocked-demo: reads PATH with an empty allowlist; returns the Err message.
-- Expected: the Err branch fires when --allow-env= is set.
blocked-demo>R t t
  env "PATH"

-- main: reads PATH and HOME, then prints a summary of whether each succeeded.
main>_
  r-path=read-path()
  ?{r-path|er: prnt +"PATH blocked: " er
           ~v:  prnt +"PATH ok, len=" lnt v}
  r-home=env "HOME"
  ?{r-home|er: prnt +"HOME blocked: " er
           ~v:  prnt +"HOME=" v}