Can't generate a regular expression

Question

I'm trying to generate a regular expression to detect any string that :

• Starts with the [
• Ends with ]
• Contains any word or number or space

Example : [Maxsens8 Innovations]

I'm using : https://regex101.com

I create this regular expression : ^\[[a-zA-Z0-9\]]$

This regular expression does not match to expressions that i'm looking for and i thing the problem

is about the last character .

I will be gratefull if someone explain to me how to generate the right regular expression that

detect strings like : [Maxsens Innovations] [Verifik8] [Divoluci] ...

Answer 1

Try:

^\[[a-zA-Z0-9 ]*\]$ or ^\[[a-zA-Z0-9\s]*\]$

• \]$ Match ] followed by end of line ($)
• [ and ] are meta-characters hence should be escaped.
• Use \s to match any white-space char (including newline) or single space.

Note: This shall match against single input line. If you have multiple fragments per line then skip the line start and end markers viz., ^ and $.