正则表达式从字符串中删除括号

Question

If I have:

string = (1000.00)

How can I use regex to remove the parentheses and get the output as 1000.00 ?

Thanks

Answer 1

Try this regular expression:

s/([()])//g

Brief explanation: [] is used to create a character set for any regular expression. My character set for this particular case is composed of ( and ) . So overall, substitute ( and ) with an empty string.

Answer 2

Replace the pattern:

\((.+?)\)

With the replacement pattern:

\1

Note the escaping of the parentheses () for their literal meaning as parenthesis characters.

Answer 3

Perl syntax: /\\(([0-9\\.]+)\\)/ (untested)

UPDATE : (more strict)

Perl syntax: /\\((-?[0-9]+\\.[0-9]*)\\)/