---

yaml
---
r: 6144
b: refs/heads/master
c: 0757436
h: refs/heads/master
v: v3

Author: David Rajchenbach-Teller

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 07ffe68ad9145a209725ac289f8c4235b4c9b334
+refs/heads/master: 07574363efc8fa046d197c71a53ac9987c064902

trunk/src/lib/char.rs

@@ -94,6 +94,7 @@ pure fn is_whitespace(c: char) -> bool {
     } else if c == ch_no_break_space { true } else { false }
 }
 
+
 pure fn to_digit(c: char) -> u8 {
     alt c {
         '0' to '9' { c as u8 - ('0' as u8) }
@@ -102,3 +103,10 @@ pure fn to_digit(c: char) -> u8 {
         _ { fail; }
     }
 }
+
+
+fn cmp(a: char, b: char) -> int {
+    ret  if b > a { -1 }
+    else if b < a { 1 }
+    else { 0 }
+}