Cargo.lock

@@ -4,4 +4,4 @@ version = 3
 
 [[package]]
 name = "rash"
-version = "0.2.1"
+version = "0.2.0"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rash"
-version = "0.2.1"
+version = "0.2.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

src/command.rs

@@ -12,58 +12,24 @@ impl ExitCode {
     pub fn get(&self) -> u8 {
         self.exit_code
     }
-
-    pub fn not_found() -> Self {
-        Self { exit_code: 127 }
-    }
 }
 
 pub trait Command {
     fn spawn(&self) -> ExitCode;
 }
 
-pub struct CommandSequence {
-    command: Box<dyn Command>,
-    next_command: Option<Box<dyn Command>>,
-}
-
-impl CommandSequence {
-    pub fn new(command: impl Command + 'static) -> Self {
-        Self {
-            command: Box::new(command),
-            next_command: None,
-        }
-    }
-
-    /*
-    pub fn add(&self, command: &dyn Command) {
-        if self.command.is_none() {
-            let my_box = Box::new(command.to_owned());
-            self.command = Some(my_box);
-        }
-    }
-    */
-}
-
-impl Command for CommandSequence {
-    fn spawn(&self) -> ExitCode {
-        let mut exit_code = self.command.spawn();
-
-        if self.next_command.is_some() {
-            exit_code = self.next_command.as_ref().unwrap().spawn();
-        }
-
-        exit_code
-    }
-}
-
 pub struct UnixProgram {
     argv: Vec<String>,
 }
 
 impl UnixProgram {
-    pub fn new(argv: Vec<String>) -> Self {
+    pub fn new() -> Self {
-        Self { argv }
+        Self { argv: Vec::new() }
+    }
+
+    pub fn argv(&mut self, argv: Vec<String>) -> &mut Self {
+        self.argv = argv;
+        self
     }
 }
 
@@ -87,14 +53,14 @@ impl Command for UnixProgram {
 
             let exit_code = match u8::try_from(exit_code) {
                 Ok(code) => ExitCode::new(code),
-                Err(_e) => ExitCode::new(u8::MAX),
+                Err(_e) => ExitCode::new(255),
             };
 
             exit_code
         } else {
             let message = format!("{}: command not found", &program);
             error::print_error(message);
-            ExitCode::not_found()
+            ExitCode::new(127)
         }
     }
 }

src/control.rs

@@ -1,6 +1,5 @@
-use crate::command::{Command, ExitCode};
+use crate::command::{Command, ExitCode, UnixProgram};
 use crate::interface::{get_user_input, print_prompt};
-use crate::parser::parse_command_line;
 
 fn exit(code: &ExitCode) {
     let code = i32::from(code.get());
@@ -13,13 +12,19 @@ pub fn run() {
 
     loop {
         print_prompt();
+
         let user_input = get_user_input();
 
         if user_input.is_some() {
-            let command_sequence = parse_command_line(user_input.unwrap());
+            let user_input = user_input.unwrap();
 
-            if command_sequence.is_some() {
+            let argv: Vec<String> = user_input
-                current_exit_code = command_sequence.unwrap().spawn();
+                .split_whitespace()
+                .map(|s| s.to_string())
+                .collect();
+
+            if !argv.is_empty() {
+                current_exit_code = UnixProgram::new().argv(argv).spawn();
             }
         } else {
             println!();

src/main.rs

@@ -2,7 +2,6 @@ mod command;
 mod control;
 mod error;
 mod interface;
-mod parser;
 
 fn main() {
     control::run();

src/parser.rs

@@ -1,14 +0,0 @@
-use crate::command::{CommandSequence, UnixProgram};
-
-pub fn parse_command_line(line: String) -> Option<CommandSequence> {
-    let argv: Vec<String> = line.split_whitespace().map(|s| s.to_string()).collect();
-
-    if !argv.is_empty() {
-        let command = UnixProgram::new(argv);
-        let command_sequence = CommandSequence::new(command);
-        // command_sequence.add(_command);
-        Some(command_sequence)
-    } else {
-        None
-    }
-}