' shortcuts, including flip-bool

programs/flip-bool/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "flip-bool"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

programs/flip-bool/src/main.rs

@@ -0,0 +1,25 @@
+use std::io::{Read, Write};
+
+fn main() {
+    let mut input = String::new();
+    let mut stdin = std::io::stdin();
+    let mut stdout = std::io::stdout();
+
+    stdin.read_to_string(&mut input).unwrap();
+
+    stdout
+        .write_all(match input.as_bytes() {
+            b"true" => b"false",
+            b"True" => b"False",
+            b"TRUE" => b"FALSE",
+            b"false" => b"true",
+            b"False" => b"True",
+            b"FALSE" => b"TRUE",
+            b"1" => b"0",
+            b"yes" => b"no",
+            b"0" => b"1",
+            b"no" => b"yes",
+            other => other,
+        })
+        .unwrap();
+}