"char": use shorter names "to_lower"/"to_upper", analogous to the same names in "str"

src/libcore/char.rs

@@ -41,7 +41,7 @@ export is_alphabetic,
        is_XID_start, is_XID_continue,
        is_lowercase, is_uppercase,
        is_whitespace, is_alphanumeric,
-       to_digit, to_lowercase, to_uppercase, maybe_digit, cmp;
+       to_digit, to_lower, to_upper, maybe_digit, cmp;
 
 import is_alphabetic = unicode::derived_property::Alphabetic;
 import is_XID_start = unicode::derived_property::XID_Start;
@@ -137,13 +137,13 @@ pure fn maybe_digit(c: char) -> option::t<u8> {
 }
 
 /*
- Function: to_lowercase
+ Function: to_lower
 
  Convert a char to the corresponding lower case.
 
  FIXME: works only on ASCII
 */
-pure fn to_lowercase(c: char) -> char {
+pure fn to_lower(c: char) -> char {
     alt c {
       'A' to 'Z' { ((c as u8) + 32u8) as char }
       _ { c }
@@ -151,13 +151,13 @@ pure fn to_lowercase(c: char) -> char {
 }
 
 /*
- Function: to_uppercase
+ Function: to_upper
 
  Convert a char to the corresponding upper case.
 
  FIXME: works only on ASCII
 */
-pure fn to_uppercase(c: char) -> char {
+pure fn to_upper(c: char) -> char {
     alt c {
       'a' to 'z' { ((c as u8) - 32u8) as char }
       _ { c }

src/libcore/str.rs

@@ -833,7 +833,7 @@ Convert a string to lowercase
 fn to_lower(s: str) -> str {
     let outstr = "";
     iter_chars(s) { |c|
-        push_char(outstr, char::to_lowercase(c));
+        push_char(outstr, char::to_lower(c));
     }
     ret outstr;
 }
@@ -845,7 +845,7 @@ Convert a string to uppercase
 fn to_upper(s: str) -> str {
     let outstr = "";
     iter_chars(s) { |c|
-        push_char(outstr, char::to_uppercase(c));
+        push_char(outstr, char::to_upper(c));
     }
     ret outstr;
 }

src/test/stdtest/char.rs

@@ -62,17 +62,17 @@ fn test_to_digit_fail_2() {
 }
 
 #[test]
-fn test_to_lowercase() {
-    assert (char::to_lowercase('H') == 'h');
-    assert (char::to_lowercase('e') == 'e');
-    //assert (char::to_lowercase('Ö') == 'ö');
-    assert (char::to_lowercase('ß') == 'ß');
+fn test_to_lower() {
+    assert (char::to_lower('H') == 'h');
+    assert (char::to_lower('e') == 'e');
+    //assert (char::to_lower('Ö') == 'ö');
+    assert (char::to_lower('ß') == 'ß');
 }
 
 #[test]
-fn test_to_uppercase() {
-    assert (char::to_uppercase('l') == 'L');
-    assert (char::to_uppercase('Q') == 'Q');
-    //assert (char::to_uppercase('ü') == 'Ü');
-    assert (char::to_uppercase('ß') == 'ß');
+fn test_to_upper() {
+    assert (char::to_upper('l') == 'L');
+    assert (char::to_upper('Q') == 'Q');
+    //assert (char::to_upper('ü') == 'Ü');
+    assert (char::to_upper('ß') == 'ß');
 }