From: "prijutme4ty (Ilya Vorontsov)" <prijutme4ty@...>
Date: 2012-07-27T16:30:41+09:00
Subject: [ruby-core:46802] [ruby-trunk - Feature #6802] String#scan should have equivalent yielding MatchData


Issue #6802 has been updated by prijutme4ty (Ilya Vorontsov).


Simple implementation:

class String
  def each_match(pattern, &block)
    return Enumerator.new(self, :each_match, pattern)  unless block_given?
    text = self
    m = text.match(pattern)
    while m
      yield m
      text = text[m.end(0)..-1]
      m = text.match(pattern)
    end
  end
end
----------------------------------------
Feature #6802: String#scan should have equivalent yielding MatchData
https://bugs.ruby-lang.org/issues/6802#change-28472

Author: prijutme4ty (Ilya Vorontsov)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


Ruby should have method to obtain not an array of arrays but of MatchData objects. It can help in obtaining named groups:

pattern = /x: (?<x>\d+) y:(?<y>\d+)/
polygon = []
text.scan_for_pattern(pattern){|m| polygon << Point.new(m[:x], m[:y]) }

Not to break existing code we need unique name. Ideas? May be #each_match


-- 
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