Scala regex replace with anonymous function

Question

In Ruby I can replace characters in a string in the following way:

a = \"one1two2three\"
a.gsub(/\\d+/) {|e| e.to_i + 1}
=> \"one2two3three\"

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Answer 1

Yes, Regex#replaceAllIn has an overloaded version that takes a function Match => String. The equivalent Scala version of your code would be:

"""\d+""".r.replaceAllIn("one1two2three", m => (m.group(0).toInt + 1).toString)