Unpacks the content found within a text, delimited by an opening char and a closing char, e.g., 'Can extract (only the content found here within these parentheses)'
The exact-math is a set of methods for addition, subtraction, multiplication, division, rounding, ceiling, flooring and powering calculations. It can be used with big number as it handles the floating point problem.
convert group to non-capturing-group: (.+)
-> (?:.+)
textlint rule for checking full-width or half-width bracket in Chinese text