ew cant async because rust reaps thread running tinyaudio need holder

Cargo.lock

@@ -242,6 +242,7 @@ dependencies = [
  "chrono",
  "clap",
  "env_logger",
+ "io-prompt-prototype",
  "itertools 0.14.0",
  "midir",
  "regex",
@@ -412,6 +413,12 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "io-prompt-prototype"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca9d71ad6b790f2522eeb0a4f207fa7ef21826777d4714c7ff09483bf17b0ab8"
+
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.2"

Cargo.toml

@@ -7,6 +7,7 @@ edition = "2024"
 chrono = "0.4.44"
 clap = { version = "4.5.60", features = ["derive"] }
 env_logger = "0.11.9"
+io-prompt-prototype = "1.0.0"
 itertools = "0.14.0"
 midir = "0.10.3"
 regex = "1.12.3"

src/flags.rs

@@ -14,7 +14,7 @@ pub struct Flags {
     #[arg(long, default_value = "super_small_font.sf2")]
     pub sound_font: String,
 
-    #[arg(short, long, default_value = "c 2e+")]
+    #[arg(short, long, default_value = "c 2*e+")]
     pub play: Vec<String>,
 }
 

src/main.rs

@@ -1,3 +1,4 @@
+use io_prompt_prototype::prompt;
 use itertools::Itertools;
 
 mod flags;
@@ -12,11 +13,22 @@ fn main() {
         eprintln!("{:?}", flags);
     }
 
+    let once = flags.play.iter().filter(|x| x.len() > 0).count() > 0;
+    loop {
+        play_with_flags(&flags);
+        if once {
+            break;
+        }
+    }
+}
+
+fn play_with_flags(flags: &flags::Flags) {
     let mut syn_seq = seq::new_syn(syn::Syn::new(
-        flags.debug,
+        flags.debug.clone(),
-        flags.sound_font,
+        flags.sound_font.clone(),
-        flags.sample_rate,
+        flags.sample_rate.clone(),
     ));
+
     let mut i = 0;
     for p in flags.play.iter() {
         for p in play::new(p.clone()) {
@@ -25,10 +37,39 @@ fn main() {
         }
     }
 
-    play(syn_seq, flags.sample_rate, flags.bpm);
+    let sync = i > 0;
+    if !sync {
+        let mut to_break = false;
+        let mut payload = vec![];
+        loop {
+            let mut s: String = prompt!("> ").parse().expect("failed to readline");
+            s = s.split_whitespace().join(" ");
+            payload.push(s.clone());
+            match s.as_ref() {
+                "" => match to_break {
+                    false => {
+                        to_break = true;
+                    }
+                    true => {
+                        break;
+                    }
+                },
+                _ => {
+                    to_break = false;
+                }
+            };
         }
 
-fn play(mut s: seq::SynSeq, sample_rate: usize, bpm: usize) {
+        for p in play::new(payload.join("\n")) {
+            syn_seq.append(i as i32, p);
+            i += 1;
+        }
+    }
+
+    play(syn_seq, flags.sample_rate, flags.bpm, sync);
+}
+
+fn play(mut s: seq::SynSeq, sample_rate: usize, bpm: usize, sync: bool) {
     let samples_per_beat = sample_rate / bpm * 60;
     let params = tinyaudio::prelude::OutputDeviceParameters {
         channels_count: 2,
@@ -52,6 +93,8 @@ fn play(mut s: seq::SynSeq, sample_rate: usize, bpm: usize) {
     })
     .unwrap();
 
+    if sync {
         // Wait it out
         std::thread::sleep(std::time::Duration::from_secs(duration as u64));
     }
+}

src/play.rs

@@ -20,21 +20,22 @@ fn from_string(s: String) -> String {
 fn parse(s: String) -> Vec<String> {
     let s = s
         .split("\n")
-        .filter(|x: &&str| !x // doesnt start with #
+        .filter(|x: &&str| {
+            !x // doesnt start with #
                 .split_whitespace()
                 .collect::<Vec<_>>()
                 .join("")
                 .starts_with("#")
-        )
+        })
-        .map(|x| x
+        .map(|x| {
-            .split("#")
+            x.split("#")
                 .take(1) // drop after #
                 .collect::<Vec<_>>()
                 .join("")
                 .split_whitespace()
                 .collect::<Vec<_>>()
                 .join(" ")
-        )
+        })
         .collect::<Vec<_>>()
         .join("\n");
     let mut channels = vec![];
@@ -44,20 +45,22 @@ fn parse(s: String) -> Vec<String> {
         match lines[i] {
             "" => {
                 j = 0;
-            },
+            }
             _ => {
                 while channels.len() <= j {
                     channels.push("".to_string());
                 }
-                channels[{ let tmp = j; j += 1; tmp }] += &(" ".to_string() + lines[i]);
+                channels[{
-            },
+                    let tmp = j;
+                    j += 1;
+                    tmp
+                }] += &(" ".to_string() + lines[i]);
+            }
         };
     }
     channels
         .iter()
-        .map(|x| x.split_whitespace().collect::<Vec<_>>()
+        .map(|x| x.split_whitespace().collect::<Vec<_>>().join(" "))
-        .join(" ")
-    )
         .collect()
 }
 
@@ -111,9 +114,6 @@ mod test {
 
     #[test]
     fn drop_comment_trailer() {
-        assert_eq!(
+        assert_eq!(super::new("a b c # hello world")[0], "a b c".to_string());
-            super::new("a b c # hello world")[0],
-            "a b c".to_string()
-        );
     }
 }

src/syn.rs

@@ -74,9 +74,19 @@ impl Syn {
         match self {
             Syn::Real(syn) => syn.render(a, b),
             Syn::Text { m, i } => {
-                eprintln!("{} | render[{}]({:?})", chrono::prelude::Utc::now(), i, m
+                eprintln!(
+                    "{} | render[{}]({:?})",
+                    chrono::prelude::Utc::now(),
+                    i,
+                    m.iter()
+                        .map(|tuple| (
+                            tuple.0,
+                            tuple
+                                .1
                                 .iter()
-                    .map(|tuple| (tuple.0, tuple.1.iter().map(|v| tone::new(v.0.to_string()).string()).collect::<Vec<_>>()))
+                                .map(|v| tone::new(v.0.to_string()).string())
+                                .collect::<Vec<_>>()
+                        ))
                         .collect::<Vec<_>>(),
                 );
                 *i += 1;

src/tone.rs

@@ -20,7 +20,9 @@ impl Tone {
                     let mut result = match captures.name("letter") {
                         Some(letter) => Tone::char_to_middle_i32(letter.as_str()),
                         None => match captures.name("major") {
-                            Some(major) => Tone::char_to_middle_i32(&major.as_str()[..1]) + match &major.as_str()[2..] {
+                            Some(major) => {
+                                Tone::char_to_middle_i32(&major.as_str()[..1])
+                                    + match &major.as_str()[2..] {
                                         "0" => 0,
                                         "1" => 2,
                                         "2" => 4,
@@ -28,10 +30,12 @@ impl Tone {
                                         "4" => 7,
                                         "5" => 9,
                                         _ => 11,
-                            },
+                                    }
+                            }
                             None => {
                                 let minor = captures.name("minor").unwrap();
-                                Tone::char_to_middle_i32(&minor.as_str()[..1]) + match &minor.as_str()[2..] {
+                                Tone::char_to_middle_i32(&minor.as_str()[..1])
+                                    + match &minor.as_str()[2..] {
                                         "0" => 0,
                                         "1" => 2,
                                         "2" => 3,
@@ -40,7 +44,7 @@ impl Tone {
                                         "5" => 8,
                                         _ => 10,
                                     }
-                            },
+                            }
                         },
                     } as i32;
 
@@ -85,8 +89,15 @@ impl Tone {
 
     pub fn string(&self) -> String {
         let v = self.i32();
-        let modifier = if v > 0 && v < 57 { "-" } else if v >= 69 { "+" } else { "" };
+        let modifier = if v > 0 && v < 57 {
-        modifier.to_string() + match v {
+            "-"
+        } else if v >= 69 {
+            "+"
+        } else {
+            ""
+        };
+        modifier.to_string()
+            + match v {
                 45 | 57 | 69 => "a",
                 46 | 58 | 70 => "a+",
                 47 | 59 | 71 => "b",