'^((?![Ww][Ee])[ -~])*$'.)]). What does that expression with tilda sign and - mean in regex?

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[Sandy]

'^((?![Ww][Ee])[ -~])*$'.)]). What does that expression with tilda sign and - mean in regex?

[kyleg]

anything enclosed in [] is meant to mean “match one of the things contained inside the braces”

[kyleg]

So [ -~] looks for the occurrence of a space, a hyphen, or a tilde

[kyleg]

so overall it will match we-are we~are WE are, WE~are, etc.

[Sandy]

There is a ! So it should error out for we

[Sandy]

@kyleg

[kyleg]

gotcha

[Ray Eldath]

off-topic: https://regexr.com will definitely help you write and examine any kind of regex 😉