From b717e52505c4a36424f118073c856f6e565cd7d4 Mon Sep 17 00:00:00 2001 From: NerdyPepper Date: Thu, 28 Mar 2019 08:10:29 +0530 Subject: feat: run eva in command mode --- Cargo.lock | 357 ------------------------------------------------------------ src/main.rs | 83 ++++++++------ 2 files changed, 49 insertions(+), 391 deletions(-) delete mode 100644 Cargo.lock diff --git a/Cargo.lock b/Cargo.lock deleted file mode 100644 index cb43b18..0000000 --- a/Cargo.lock +++ /dev/null @@ -1,357 +0,0 @@ -[[package]] -name = "argon2rs" -version = "0.2.5" -source = "registry+https://github.com/rust-lang/crates.io-index" -dependencies = [ - "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)", - "scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)", -] - -[[package]] -name = "arrayvec" -version = "0.4.10" -source = "registry+https://github.com/rust-lang/crates.io-index" -dependencies = [ - "nodrop 0.1.13 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config_builder.color_mode(ColorMode::Enabled) - .edit_mode(EditMode::Emacs) - .history_ignore_space(true) - .max_history_size(1000) - .build(); - let mut rl = Editor::<()>::with_config(config); - if rl.load_history("history.txt").is_err() { - println!("No previous history."); - } + let args: Vec = env::args().collect(); + if args.len() > 1 { + let mut expr = String::new(); + for arg in args[1..].iter() { + expr.push_str(&arg[..]); + } + let evaled = eval_math_expression(&expr[..]); + match evaled { + Ok(ans) => println!("{}", ans), + Err(e) => handler(e), + }; + } else { + let config_builder = Builder::new(); + let config = config_builder.color_mode(ColorMode::Enabled) + .edit_mode(EditMode::Emacs) + .history_ignore_space(true) + .max_history_size(1000) + .build(); + let mut rl = Editor::<()>::with_config(config); + if rl.load_history("history.txt").is_err() { + println!("No previous history."); + } - loop { - let readline = rl.readline("> "); - match readline { - Ok(line) => { - rl.add_history_entry(line.as_ref()); - let evaled = eval_math_expression(&line[..]); - match evaled { - Ok(ans) => println!("{}", ans), - Err(e) => handler(e), - }; - }, - Err(ReadlineError::Interrupted) => { - println!("CTRL-C"); - break - }, - Err(ReadlineError::Eof) => { - println!("CTRL-D"); - break - }, - Err(err) => { - println!("Error: {:?}", err); - break + loop { + let readline = rl.readline("> "); + match readline { + Ok(line) => { + rl.add_history_entry(line.as_ref()); + let evaled = eval_math_expression(&line[..]); + match evaled { + Ok(ans) => println!("{}", ans), + Err(e) => handler(e), + }; + }, + Err(ReadlineError::Interrupted) => { + println!("CTRL-C"); + break + }, + Err(ReadlineError::Eof) => { + println!("CTRL-D"); + break + }, + Err(err) => { + println!("Error: {:?}", err); + break + } } } + rl.save_history("history.txt").unwrap(); } - rl.save_history("history.txt").unwrap(); } fn autobalance_parens(input: &str) -> Result { -- cgit v1.2.3