Enum Variable

pub enum Variable {
    Str(CString),
    Array(Vec<(i64, CString)>),
    Assoc(HashMap<CString, CString>),
}

Contains the value of a shell variable.

Use find or RawVariable::get to get this value.

Example

A function to print the value of var.

use bash_builtins::variables::Variable;
use std::io::{self, Write};

fn print<W>(mut output: W, name: &str, var: &Variable) -> io::Result<()>
where
    W: Write,
{
    match var {
        Variable::Str(s) => {
            writeln!(output, "{} = {:?}", name, s)?;
        }

        Variable::Array(a) => {
            for (idx, elem) in a.iter().enumerate() {
                writeln!(&mut output, "{}[{}] = {:?}", name, idx, elem)?;
            }
        }

        Variable::Assoc(a) => {
            for (key, value) in a.iter() {
                writeln!(&mut output, "{}[{:?}] = {:?}", name, key, value)?;
            }
        }
    }

    Ok(())
}

Variants

Str(CString)

A single string.

Array(Vec<(i64, CString)>)

An indexed array.

Each element is a tuple with the index and the value of the items in the array.

Assoc(HashMap<CString, CString>)

An associative array.

These shell variables are initialized with declare -A.

Trait Implementations

impl Debug for Variable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.