[Issue 330] New: std.string.tolower / std.string.toupper broken for non-ASCII strings

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=330

           Summary: std.string.tolower / std.string.toupper broken for non-
                    ASCII strings
           Product: D
           Version: 0.166
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: patch
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: thomas-dloop at kuehne.cn


On 2005-11-22, Shawn Liu originally reported the tolower/toupper issue
(dltv86$tvu$1 at digitaldaemon.com).

# import std.string;
# import std.stdio;
# 
# int main(){
#    char[] a = "A\u0410";
# 
#    char[] b = tolower(a);
#    char[] c = toupper(b);
# 
#    writefln("a: %s", cast(ubyte[]) a);
#    writefln("b: %s", cast(ubyte[]) b);
#    writefln("c: %s", cast(ubyte[]) c);
# 
#    return 0;
# }

Output:
a: [65,208,144]
b: [97,208,144,208,176]
c: [65,208,144,208,176,208,144,208,144]

Expected output:
a: [65,208,144]
b: [97,208,176]
c: [65,208,144]


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