https://issues.dlang.org/show_bug.cgi?id=11356
--- Comment #2 from [email protected] --- (In reply to Andrej Mitrovic from comment #1) > https://github.com/D-Programming-Language/phobos/pull/1665 > > I don't know why Walter was so hanged up about this. It's a simple function. > I think it's worth reopening and maybe casting a vote in the forums. I've been meaning to reply to this for a while, but you know how it is... Anywhoo, one of the issues that stopped me from re-opening it, was defining a useful interface: Returning "simply" a bool is fine and all, but chances are that when the function returns "false", as user wants to know "Ok, there's non-ASCII characters in here. Where are they?". So without making the function more complicated, there are chances it could return more information than "just" yes/no. I'd have suggested that isASCII return a slice that starts at (or roughly before) the first non-ASCII character in the string. This would be useful for input with "little to no unicode". The *issue* with this is that is would "flip" isASCII's return code, "thanks" to implicit slice to bool conversion >:( Or maybe I'm just over-engineering. What's for sure, I don't want to introduce more than 1 function for this... --
