Initial commit

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "tstamper"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "tstamper"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

src/main.rs

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+use std::io::{self, BufRead};
+use std::time::{Duration, Instant};
+
+fn main() -> io::Result<()> {
+    let mut lines = io::stdin().lock().lines();
+
+    let start_time = loop {
+        if let Some(line) = lines.next() {
+            let start_time = Instant::now();
+
+            let line = line?;
+
+            if line.starts_with("[PMM]") {
+                println!("{} {line}", format_timestamp(Duration::new(0, 0)));
+                break start_time;
+            } else {
+                println!("FIRM {line}");
+            }
+        } else {
+            return Ok(());
+        }
+    };
+
+    for line in lines {
+        let line = line?;
+        let elapsed = Instant::now().duration_since(start_time);
+        println!("{} {line}", format_timestamp(elapsed));
+    }
+
+    Ok(())
+}
+
+fn format_timestamp(duration: Duration) -> String {
+    let micros = duration.as_micros();
+    let secs = micros / 1_000_000;
+    let micros = micros % 1_000_000;
+
+    let hours = secs / 3600;
+    let mins = (secs % 3600) / 60;
+    let secs = secs % 60;
+
+    format!("{:02}:{:02}:{:02}.{:06}", hours, mins, secs, micros)
+}