RuleFile.AaFile.letter: def of bend-osdev-apparmor@0.1.0.0
Import: import bend-osdev-apparmor@0.1.0.0/rule_file.bend as RuleFile
Lines 275-278 of bend-osdev-apparmor@0.1.0.0/rule_file.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-apparmor@0.1.0.0/rule_file.bend&start_line=275&end_line=278

import Base

# a set of file permissions from letters (r w a l k m x), for queries: None
# if a letter is not one of them
def AaFile.letter(+h: U32) -> Maybe<&2, Nat>:
  Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 114), Some{0n}, Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 119), Some{1n}, Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 97), Some{2n}, Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 108), Some{3n}, Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 107), Some{4n}, Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 109), Some{5n}, Bool.pick(Maybe<&2, Nat>, U32.is_eq(h, 120), Some{6n}, None{})))))))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq