[Issue 11254] std.string.strip is not nothrow

d-bugmail at puremagic.com d-bugmail at puremagic.com
Mon Oct 14 11:50:53 PDT 2013


http://d.puremagic.com/issues/show_bug.cgi?id=11254



--- Comment #3 from monarchdodra at gmail.com 2013-10-14 11:50:50 PDT ---
(In reply to comment #2)
> (In reply to comment #1)
> 
> > strip is a unicode aware function, that can remove unicode whites, so it *must*
> > decode. So even if "most of the time", it won't throw, in the generic case, it
> > can.
> 
> Some possible alternative solutions:
> - A strip-like function that works on ubyte[] (the return type of
> std.string.representation if you give it a string);
> - A compile-time switch for std.string.strip that compiles out the
> unicode-aware parts.
> - A std.ascii.astrip nothrow function designed to work only on ASCII
> strings/char[].

You should try the new generic std.algorithm.strip:

//----
import std.string, std.ascii, std.algorithm;

void main(string[] args) nothrow pure
{
    string s = " hello! ";
    s = cast(string)s.representation.strip!isWhite();
}
//----

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