Feature #10851: Introduce Regexp#fetch

• Status: Open
• Assignee: -
• Target version: -

[prijutme4ty (Ilya Vorontsov)]

There is a common pattern in code:
match = pattern.match(string)
var = match && match[name_of_capture]

One should write it everywhere not to get an exception. It can be solved by introducing something like Hash#fetch.

class Regexp
def fetch(string, capture_name:, pos: nil, default_value: nil)
m = match(string, pos)
m ? m[capture_name] : default_value
end
end