6 /// Describes which shell to produce a completions file for
9 pub enum Shell {  enum
10     /// Generates a .bash completion file for the Bourne Again SHell (BASH)
12     /// Generates a .fish completion file for the Friendly Interactive SHell (fish)
14     /// Generates a completion file for the Z SHell (ZSH)
22 impl Shell {  impl
29 impl FromStr for Shell {  implementation
34             "ZSH" | _ if s.eq_ignore_ascii_case("zsh") => Ok(Shell::Zsh),  in from_str()
35             "FISH" | _ if s.eq_ignore_ascii_case("fish") => Ok(Shell::Fish),  in from_str()
36             "BASH" | _ if s.eq_ignore_ascii_case("bash") => Ok(Shell::Bash),  in from_str()
37             "POWERSHELL" | _ if s.eq_ignore_ascii_case("powershell") => Ok(Shell::PowerShell),  in from_str()
38             "ELVISH" | _ if s.eq_ignore_ascii_case("elvish") => Ok(Shell::Elvish),  in from_str()
46 impl fmt::Display for Shell {  implementation
49             Shell::Bash => write!(f, "BASH"),  in fmt()
50             Shell::Fish => write!(f, "FISH"),  in fmt()
51             Shell::Zsh => write!(f, "ZSH"),  in fmt()
52             Shell::PowerShell => write!(f, "POWERSHELL"),  in fmt()
53             Shell::Elvish => write!(f, "ELVISH"),  in fmt()