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pub mod cd;
pub mod exit;
pub mod export;
pub mod source;
use crate::poem::Verse;
/// A static list of all the built-in commands
static INDEX: [&str; 4] = ["cd", "exit", "export", "source"];
/// Lookup the index of a built-in command
///
/// Looks up the index of a built-in command in [INDEX], accounting for aliases
pub fn lookup(verb: &str) -> Option<usize> {
let verb = match verb {
"quit" => "exit", // Alias 'quit' to 'exit'
"set" => "export", // Alias 'set' to 'export'
_ => verb,
};
INDEX.iter().position(|v| v.to_string() == verb)
}
pub fn incant(verse: &Verse, index: usize, env: &mut Environment) -> i32 {
let verb = INDEX[index];
match verb {
"cd" => cd::incant(verse),
"exit" => exit::incant(),
"export" => export::incant(verse),
"source" => source::incant(verse, env),
_ => unreachable!(),
}
}
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