# open_registry.ludic — L8 + L3: `export open registry Systems of System` takes defs from other
# modules. The index order is the declaring module's entries, then every other module's by module
# name - alpha before zeta, although zeta is imported first - so it never depends on import order.
#
# Running it prints:  clock animals weather / 2 2 3
import "reg/core"
import "reg/zeta"
import "reg/alpha"
program OpenRegistry {
  entry {
    var out = ""
    for i in 0 .. SY_COUNT { out = out + Systems[i].key + " " }
    let s = Systems[SY_ANIMALS]
    let w = Systems[SY_WEATHER]
    print(`{out}/ {s.run()} {SY_WEATHER} {w.run()}`)
  }
}