More like lolcat.

src/main.rs

@@ -9,15 +9,22 @@ use rand::{thread_rng, Rng};
 use ansi_term::Colour::RGB;
 
 fn main() {
-    let mut s = thread_rng().gen_range(0.0, 256.0);
+    let mut s = 1.0; // thread_rng().gen_range(0.0, 256.0);
 
     let stdin = io::stdin();
 
     for line in stdin.lock().lines() {
-        s += 0.8;
+        s += 1.0;
 
-        for (n, c) in line.unwrap().chars().enumerate() {
-            let (red, green, blue) = rainbow(0.1, s + n as f32);
+        let mut d = 0;
+
+        for c in line.unwrap().chars() {
+            d += match c {
+                '\t' => 8,
+                _ => 1
+            };
+
+            let (red, green, blue) = rainbow(0.1, (s + d as f32) / 3.0);
 
             print!("{}", RGB(red, green, blue).paint(c.to_string()));
         }