unicode logging like a pro

src/input.rs

@@ -3,6 +3,7 @@ use anyhow::{Context, Result};
 use windows::Win32::Foundation::HANDLE;
 use windows::Win32::System::Console;
 
+#[allow(dead_code)]
 fn log_input_mode(mode: Console::CONSOLE_MODE) {
     // Characters read by the ReadFile or ReadConsole function are written to the active screen
     // buffer as they are typed into the console. This mode can be used only if the
@@ -118,8 +119,8 @@ fn setup_stdin() -> Result<()> {
 
         Error::check(Console::SetConsoleMode(handle, mode))?;
         Error::check(Console::GetConsoleMode(handle, &mut mode))?;
-        debug!("Stdin details:");
-        log_input_mode(mode);
+        // debug!("Stdin details:");
+        // log_input_mode(mode);
     }
     Ok(())
 }

src/key.rs

@@ -36,7 +36,14 @@ pub struct Event {
 impl fmt::Display for Event {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let down = if self.down { '↓' } else { '↑' };
-        write!(f, "{} {}", down, self.code.val)
+        let sym = match self.code.sym {
+            Some(c) => c,
+            None => '∅',
+        };
+        let ctrl = if self.ctrl { '⎈' } else { '·' };
+        let alt = if self.alt { '⎇' } else { '·' };
+        let shift = if self.shift { '⇧'} else { '·' };
+        write!(f, "{} {} {} {} {: >2} {}", down, ctrl, alt, shift, self.code.val, sym)
     }
 }
 

src/main.rs

@@ -18,6 +18,7 @@ use anyhow::{Context, Result};
 
 use crate::{error::Error, log::*};
 
+#[allow(dead_code)]
 fn log_output_mode(mode: Console::CONSOLE_MODE) {
     // Characters written by the WriteFile or WriteConsole function or echoed by the ReadFile or
     // ReadConsole function are parsed for ASCII control sequences, and the correct action is
@@ -122,8 +123,8 @@ fn setup_stdout() -> Result<()> {
     unsafe {
         let handle = stdout_handle()?;
         if Console::GetConsoleMode(handle, &mut mode).as_bool() {
-            debug!("Stdout details:");
-            log_output_mode(mode);
+            // debug!("Stdout details:");
+            // log_output_mode(mode);
         } else {
             return Err(Error::last_error().into());
         }
@@ -143,58 +144,61 @@ fn newline(stdout: HANDLE) -> Result<()> {
     Ok(())
 }
 
-fn eval(line: String) -> Result<()> {
-    let parts: Vec<&str> = line.split_whitespace().collect();
-    if parts.len() == 0 {
-        return Ok(());
-    }
-
-    let cmd = parts[0];
-    match cmd {
+fn eval(cmd: String, args: Vec<&str>) -> Result<bool> {
+    match cmd.as_str() {
         "pwd" => {
             let pb = std::env::current_dir()?;
             println!("{}", pb.as_path().as_os_str().to_str().unwrap());
-            return Ok(());
+            return Ok(true);
         }
         "cd" => {
             let cwd = std::env::current_dir()?;
-            if parts.len() > 1 {
-                let target = cwd.join(parts[1]);
+            if args.len() > 0 {
+                let target = cwd.join(args[0]);
                 std::env::set_current_dir(target)?;
-                return Ok(());
             }
+            return Ok(true);
         }
         "printenv" => {
-            if parts.len() > 1 {
-                let name = parts[1];
+            if args.len() > 0 {
+                let name = args[0];
                 match std::env::var(name) {
-                    Ok(val) => println!("{}", val),
-                    Err(e) => println!("ERROR {}", e),
+                    Ok(val) => {
+                        println!("{}", val);
+                        return Ok(true);
+                    }
+                    Err(e) => {
+                        println!("ERROR {}", e);
+                        return Ok(false);
+                    }
                 }
             } else {
                 println!("which variable you fucking dork");
+                return Ok(false);
             }
-            return Ok(());
         }
         "which" => {
-            if parts.len() > 1 {
+            if args.len() > 0 {
                 let path = std::env::var("path").unwrap();
                 let dirs: Vec<&str> = path.split(";").collect();
                 for d in dirs {
                     let dir = std::path::Path::new(d);
-                    let fname = dir.join(parts[1]).with_extension("exe");
+                    let fname = dir.join(args[0]).with_extension("exe");
                     if fname.exists() && fname.is_file() {
                         println!("{}", fname.to_str().unwrap());
-                        return Ok(());
+                        return Ok(true);
                     }
                 }
-                println!("not found: {}", parts[1]);
-                return Ok(());
+                println!("not found: {}", args[0]);
+                return Ok(false);
+            } else {
+                println!("what do you want to look for?");
+                return Ok(false);
             }
         }
         "tail" => {
-            if parts.len() > 1 {
-                let fname = parts[1];
+            if args.len() > 0 {
+                let fname = args[0];
                 let stdout = stdout_handle()?;
                 match File::options().read(true).open(fname) {
                     Ok(mut f) => {
@@ -218,37 +222,40 @@ fn eval(line: String) -> Result<()> {
                             }
                         }
                     }
-                    Err(e) => { println!("failed to open file: {}", e); }
+                    Err(e) => {
+                        println!("failed to open file: {}", e);
+                        return Err(e.into());
+                    }
                 }
             } else {
                 println!("need a file name");
+                return Ok(false);
             }
         }
         "echo" => {
-            let rest: Vec<&str> = parts[1..].to_vec();
-            println!("{:?}", rest);
+            println!("{}", args.join(" "));
+            return Ok(true);
         }
         _ => {
             let mut proc = std::process::Command::new(cmd);
-            if parts.len() > 1 {
-                let args = parts[1..].to_vec();
+            if args.len() > 0 {
                 proc.args(args);
             }
             match proc.spawn() {
                 Ok(mut child) => {
                     if let Err(e) = child.wait() {
-                        println!("error: {}", e)
+                        println!("error: {}", e);
+                        return Err(e.into());
                     }
                 }
                 Err(e) => {
-                    println!("error: {}", e)
+                    println!("error: {}", e);
+                    return Ok(false);
                 }
             }
-            return Ok(());
+            return Ok(true);
         }
     }
-    // println!("Error: no such command: {}", cmd);
-    Ok(())
 }
 
 fn main() -> Result<()> {
@@ -270,24 +277,36 @@ fn main() -> Result<()> {
     let mut input = input::Reader::new()?;
 
     prompt.print()?;
+    info!("» enter");
     loop {
-        // debug!("----------------------------------------");
         match input.next()? {
             input::Event::Key(event) => {
                 if event.down {
                     if event.code.val == 0 {
-                        debug!("{}", event);
+                        debug!("  {}", event);
                     } else {
-                        warn!("{}", event);
+                        warn!("  {}", event);
                     }
                     continue;
                 }
-                info!("{}", event);
+                info!("  {}", event);
 
                 if event.code == key::ENTER {
                     newline(stdout)?;
-                    if let Err(e) = eval(line.pop()) {
+                    let s = line.pop();
+                    let parts: Vec<&str> = s.split_whitespace().collect();
+                    if parts.len() > 0 {
+                        let cmd = parts[0].to_string();
+                        let args = if parts.len() > 1 { parts[1..].to_vec() } else { vec![] };
+                        debug!("◇ {}", cmd.clone());
+                        match eval(cmd.clone(), args) {
+                            Ok(true) => info!("▷ {}", cmd),
+                            Ok(false) => warn!("▷ {}", cmd),
+                            Err(e) => {
+                                error!("▷ {}: {}", cmd, e);
                                 println!("error: {}", e);
+                            },
+                        }
                     }
                     prompt.print()?;
                     continue;
@@ -321,7 +340,7 @@ fn main() -> Result<()> {
                 }
 
                 if event.ctrl && event.code == key::D {
-                    debug!("⎈ d: exit");
+                    info!("» exit");
                     unsafe {
                         CloseHandle(stdout);
                     }
@@ -381,6 +400,7 @@ fn main() -> Result<()> {
                 warn!("‽ {}", event);
             }
             input::Event::Left => {
+                debug!("⛬ ←");
                 if line.back() {
                     unsafe {
                         let text = "\x1b[D"; // lol this sucks
@@ -389,6 +409,7 @@ fn main() -> Result<()> {
                 }
             },
             input::Event::Right => {
+                debug!("⛬ →");
                 if line.forward() {
                     unsafe {
                         let text = "\x1b[C"; // lol this sucks
@@ -396,8 +417,12 @@ fn main() -> Result<()> {
                     }
                 }
             }
-            input::Event::Up => {},
-            input::Event::Down => {},
+            input::Event::Up => {
+                debug!("⛬ ↑");
+            },
+            input::Event::Down => {
+                debug!("⛬ ↓");
+            },
             input::Event::Home => {},
             input::Event::End => {},
             input::Event::Focus(true) => {},