Remove the 'to' keyword

Author: brson

doc/rust.md

@@ -2211,14 +2211,14 @@ fn main() {
 ~~~~
 
 Multiple match patterns may be joined with the `|` operator.  A
-range of values may be specified with `to`. For example:
+range of values may be specified with `..`. For example:
 
 ~~~~
 # let x = 2;
 
 let message = match x {
   0 | 1  => ~"not many",
-  2 to 9 => ~"a few",
+  2 .. 9 => ~"a few",
   _      => ~"lots"
 };
 ~~~~

src/libcore/char.rs

@@ -120,9 +120,9 @@ pure fn is_digit(c: char) -> bool {
  */
 pure fn to_digit(c: char, radix: uint) -> Option<uint> {
     let val = match c {
-      '0' to '9' => c as uint - ('0' as uint),
-      'a' to 'z' => c as uint + 10u - ('a' as uint),
-      'A' to 'Z' => c as uint + 10u - ('A' as uint),
+      '0' .. '9' => c as uint - ('0' as uint),
+      'a' .. 'z' => c as uint + 10u - ('a' as uint),
+      'A' .. 'Z' => c as uint + 10u - ('A' as uint),
       _ => return None
     };
     if val < radix { Some(val) }
@@ -171,7 +171,7 @@ fn escape_default(c: char) -> ~str {
       '\\' => ~"\\\\",
       '\'' => ~"\\'",
       '"'  => ~"\\\"",
-      '\x20' to '\x7e' => str::from_char(c),
+      '\x20' .. '\x7e' => str::from_char(c),
       _ => escape_unicode(c)
     }
 }

src/libcore/float.rs

@@ -263,7 +263,7 @@ fn from_str(num: &str) -> Option<float> {
 
    //The string must start with one of the following characters.
    match str::char_at(num, 0u) {
-      '-' | '+' | '0' to '9' | '.' => (),
+      '-' | '+' | '0' .. '9' | '.' => (),
       _ => return None
    }
 
@@ -286,7 +286,7 @@ fn from_str(num: &str) -> Option<float> {
        c   = char_range.ch;
        pos = char_range.next;
        match c {
-         '0' to '9' => {
+         '0' .. '9' => {
            total = total * 10f;
            total += ((c as int) - ('0' as int)) as float;
          }