Struct papyrus::Repl

pub struct Repl {
    pub commands: Vec<Command>,
    pub items: Vec<Vec<String>>,
    pub statements: Vec<Vec<String>>,
    pub name: &'static str,
    pub prompt_colour: Color,
    pub out_colour: Color,
    /* private fields */
}

A REPL instance.

Fields

commands: Vec<Command>

The REPL handled commands. Can be extended.

let repl = Repl::new();
repl.commands.push(Command::new("load", CmdArgs::Filename, "load and evaluate file contents as inputs", |r, arg_text| {
	r.run_file(arg_text);
}));

items: Vec<Vec<String>>

Items compiled into every program. These are functions, types, etc.

statements: Vec<Vec<String>>

Blocks of statements applied in order.

name: &'static str

App and prompt text.

prompt_colour: Color

The colour of the prompt region. ie papyrus.

out_colour: Color

The colour of the out component. ie [out0].

Implementations

impl Repl

pub fn new() -> Self

A new REPL instance.

pub fn with_file(filename: &str) -> Self

Runs the file and returns a new REPL instance.

pub fn with_prompt(prompt: &'static str) -> Self

A new REPL instance with the given prompt.

Panics

• prompt is empty.

pub fn run(self)

Run the REPL interactively.

Panics

• Failure to initialise InputReader.