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Îmbunătățire CLI, organizare cod, primul release!
Signed-off-by: Slendi <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| use rustyline::{Editor, history::DefaultHistory, validate::Validator, hint::{Hinter, HistoryHinter}, Context, highlight::Highlighter, Helper, completion::{Completer, Pair}, error::ReadlineError, config::Configurer}; | ||
| use crossterm::cursor; | ||
| use home::home_dir; | ||
| use std::{rc::Rc, cell::RefCell}; | ||
| use std::path::Path; | ||
| use anyhow::{anyhow, Result}; | ||
|
|
||
| use crate::interpreter::{Environment, eval}; | ||
| use crate::lexer::Lexer; | ||
| use crate::parser::Parser; | ||
| use crate::interpreter::Object; | ||
|
|
||
| pub struct CustomHelper { | ||
| pub hinter: HistoryHinter, | ||
| } | ||
|
|
||
| impl Validator for CustomHelper {} | ||
| impl Highlighter for CustomHelper {} | ||
| impl Helper for CustomHelper {} | ||
| impl Completer for CustomHelper { | ||
| type Candidate = Pair; | ||
|
|
||
| fn complete(&self, line: &str, pos: usize, _: &Context<'_>) -> Result<(usize, Vec<Pair>), ReadlineError> { | ||
| let mut completions = Vec::new(); | ||
| let word_start = match line[..pos].rfind(|c: char| c.is_whitespace() || c == '(' || c == ')') { | ||
| Some(index) => index + 1, | ||
| None => 0, | ||
| }; | ||
| let word = &line[word_start..pos]; | ||
|
|
||
| if !word.is_empty() { | ||
| for i in vec!["dacă", "până când", "pânăcând", "cât timp", "câttimp", "atunci", "altfel", "pentru", "execută", "scrie", "citește"] { | ||
| if i.starts_with(word) { | ||
| completions.push(Pair { | ||
| display: i.to_string(), | ||
| replacement: i.to_string(), | ||
| }); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| Ok((word_start, completions)) | ||
| } | ||
| } | ||
|
|
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| impl Hinter for CustomHelper { | ||
| type Hint = String; | ||
| fn hint(&self, line: &str, pos: usize, ctx: &Context<'_>) -> Option<Self::Hint> { | ||
| self.hinter.hint(line, pos, ctx) | ||
| } | ||
| } | ||
|
|
||
| pub type RoLangReadlineEditor = Editor<CustomHelper, DefaultHistory>; | ||
|
|
||
| pub fn exec(input: &str) -> Result<Object> { | ||
| let envb = Rc::new(RefCell::new(Environment::new())); | ||
|
|
||
| let lex = Lexer::new(input.to_string()); | ||
| let mut parser = Parser::new(lex); | ||
| let root = parser.parse(); | ||
| //root.print(String::new(), true); | ||
|
|
||
| if parser.errors.len() > 0 { | ||
| println!("Erori găsite:"); | ||
| for (pos, msg) in parser.errors.iter().enumerate() { | ||
| println!(" {}: {}", pos+1, msg); | ||
| } | ||
| return Err(anyhow!("Există erori.")); | ||
| } | ||
|
|
||
| eval(root, Some(Rc::clone(&envb))) | ||
| } | ||
|
|
||
| pub fn repl() { | ||
| let mut rl_hist = home_dir().unwrap(); | ||
| rl_hist.push(Path::new(".rolang_history")); | ||
| let rl_hist = rl_hist.to_str().unwrap(); | ||
|
|
||
| let mut rl = RoLangReadlineEditor::new().unwrap(); | ||
| if rl.load_history(rl_hist).is_err() { | ||
| println!("Istoric nou creat."); | ||
| } | ||
|
|
||
| rl.set_helper(Some(CustomHelper { hinter: HistoryHinter { }})); | ||
| rl.set_completion_type(rustyline::CompletionType::Circular); | ||
|
|
||
| loop { | ||
| let readline = rl.readline("> "); | ||
| if readline.is_err() { | ||
| break; | ||
| } | ||
| let mut input = readline.unwrap(); | ||
|
|
||
| if input.trim().is_empty() { | ||
| continue; | ||
| } | ||
|
|
||
| rl.add_history_entry(input.clone()).unwrap(); | ||
|
|
||
| input.push('\n'); | ||
|
|
||
| let res = exec(&input); | ||
| match cursor::position() { | ||
| Ok((x, _)) => if x != 0 { | ||
| println!("\x1b[7m%\x1b[0m"); | ||
| }, | ||
| Err(_) => () | ||
| }; | ||
| match res { | ||
| Err(e) => println!("Eroare ROLang: {}", e), | ||
| Ok(res) => if res != Object::Null { | ||
| println!("Rezultat: {}", res); | ||
| } | ||
| } | ||
| } | ||
|
|
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| rl.save_history(rl_hist).unwrap(); | ||
|
|
||
| } |