How do you regex match some unicode character follow by bracket?

Question

I am not too familiar with regex and hope someone could help. example:

This is a sentence with some_unicode[some other word] and other stuff.

After removing the characters and brackets, the result should be:

This is a sentence with and other stuff.

Thank you!!

Answer 1

[ and ] are metacharacters in regular expressions and must be escaped by a backslash, e.g. \[.

Answer 2

Search for

some_unicode\[[^\]]*\]

and replace with nothing.

Explanation:

\[: Match a literal [.

[: Match a character class with the following properties (here [ is a metacharacter, starting a character class)...

^\]: "any character except a literal ]" (^ at the start of a character class negates its contents).

]*: ...zero or more times. Note again the unescaped ], ending the character class.

\]: Match a literal ].

This of course will only work if there can be no brackets inside brackets. How to actually format and use the regex is highly dependent on the language/tool you're doing this with; so if you add another tag to your question specifying the language, I can give you a code example.