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Language name in prompt

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greg 2017-12-07 20:08:31 -08:00
parent 405f91a770
commit 5659bab684
1 changed files with 6 additions and 3 deletions
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9
schala-lib/src/lib.rs
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@ -123,8 +123,7 @@ struct Repl {
impl Repl { impl Repl {
fn new(languages: Vec<Box<ProgrammingLanguageInterface>>, initial_index: usize) -> Repl { fn new(languages: Vec<Box<ProgrammingLanguageInterface>>, initial_index: usize) -> Repl {
let mut reader: linefeed::Reader<_> = linefeed::Reader::new("Metainterpreter").unwrap(); let reader: linefeed::Reader<_> = linefeed::Reader::new("Metainterpreter").unwrap();
reader.set_prompt(">> ");
let i = if initial_index < languages.len() { initial_index } else { 0 }; let i = if initial_index < languages.len() { initial_index } else { 0 };
Repl { Repl {
@ -165,8 +164,12 @@ impl Repl {
fn run(&mut self) { fn run(&mut self) {
use linefeed::ReadResult::*; use linefeed::ReadResult::*;
println!("MetaInterpreter v 0.05"); println!("MetaInterpreter v 0.05");
println!("Using language: {}", self.languages[self.current_language_index].get_language_name());
loop { loop {
let language_name = self.languages[self.current_language_index].get_language_name();
let prompt_str = format!("{} >> ", language_name);
self.reader.set_prompt(&prompt_str);
match self.reader.read_line() { match self.reader.read_line() {
Err(e) => { Err(e) => {
println!("Terminal read error: {}", e); println!("Terminal read error: {}", e);