try_convert(p1) public

Try to convert obj into a Regexp, using to_regexp method. Returns converted regexp or nil if obj cannot be converted for any reason.

Regexp.try_convert(/re/)         #=> /re/
Regexp.try_convert("re")         #=> nil

o = Object.new
Regexp.try_convert(o)            #=> nil
def o.to_regexp() /foo/ end
Regexp.try_convert(o)            #=> /foo/
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