factor common behavior out into a library

1 files changed, 8 insertions, 4 deletions

diff --git a/RNA.rs b/RNA.rs
index 30091fe..9c20887 100644
--- a/RNA.rs
+++ b/RNA.rs
@@ -1,12 +1,16 @@
 use io::{stdin,stdout,ReaderUtil,WriterUtil};
 
+extern mod rosalind;
+use rosalind::dna::transcribe;
+
 fn main() {
     let stdout = stdout();
     for stdin().each_char() |ch| {
-        match ch {
-            'T' =>  { stdout.write_char('U')        }
-            '\n' => { stdout.write_char(ch); return }
-            _   =>  { stdout.write_char(ch)         }
+        // each_char returning -1 here is a bug
+        if (ch == '\n' || ch == (-1 as char)) {
+            stdout.write_char('\n');
+            return;
         }
+        stdout.write_char(transcribe(ch));
     }
 }