String and number range checks

[Chompy]

Originally Posted by Tolnaftate2004

[a-B] is an invalid regex...

Thanks for pointing that out haha, didn't realize.

[Tolnaftate2004]

Originally Posted by Chompy

Thanks for pointing that out haha, didn't realize.

Ah, well, it's not that you can't mix lower and upper case in ranges, it's just that B < a lexicographically, so the correct range would be [B-a], which includes B, C, ... Z, [, \, ], ^, _ , `, and finally a.

I think what you wanted for [a-B] is actually [ABa-z].

e: I've done some testing and transliteration to e.g.

PHP Code:

[a-z] -> getascii(c) in |getascii("a"), getascii("z")| 


works properly with arbitrary bounds (as long as they are properly parsed*) and even "broken" ranges like [a-B].

*Consider [[-]] and [\[-\]].