vendor/clap/src/util/mod.rs

   1 #![allow(clippy::single_component_path_imports)]
   2
   3 pub(crate) mod flat_map;
   4 pub(crate) mod flat_set;
   5 mod graph;
   6 mod id;
   7 mod str_to_bool;
   8
   9 pub use self::id::Id;
  10
  11 pub(crate) use self::flat_map::Entry;
  12 pub(crate) use self::flat_map::FlatMap;
  13 pub(crate) use self::flat_set::FlatSet;
  14 pub(crate) use self::graph::ChildGraph;
  15 pub(crate) use self::str_to_bool::str_to_bool;
  16 pub(crate) use self::str_to_bool::FALSE_LITERALS;
  17 pub(crate) use self::str_to_bool::TRUE_LITERALS;
  18
  19 pub(crate) mod color;
  20
  21 pub(crate) const SUCCESS_CODE: i32 = 0;
  22 // While sysexists.h defines EX_USAGE as 64, this doesn't seem to be used much in practice but
  23 // instead 2 seems to be frequently used.
  24 // Examples
  25 // - GNU `ls` returns 2
  26 // - Python's `argparse` returns 2
  27 pub(crate) const USAGE_CODE: i32 = 2;
  28
  29 pub(crate) fn safe_exit(code: i32) -> ! {
  30     use std::io::Write;
  31
  32     let _ = std::io::stdout().lock().flush();
  33     let _ = std::io::stderr().lock().flush();
  34
  35     std::process::exit(code)
  36 }
  37
  38 #[cfg(not(feature = "unicode"))]
  39 pub(crate) fn eq_ignore_case(left: &str, right: &str) -> bool {
  40     left.eq_ignore_ascii_case(right)
  41 }
  42
  43 #[cfg(feature = "unicode")]
  44 pub(crate) use unicase::eq as eq_ignore_case;