Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/pattern_patch/core_ext/string.rb

Instance Method Summary collapse

Instance Method Details

#apply_matches(matches) ⇒ Object

Return a copy of the receiver with capture group references in self replaced by appropriate data from matches. The receiver need not match the matches.regexp.

:matches: A MatchData object returned by Regexp#match



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# File 'lib/pattern_patch/core_ext/string.rb', line 23

def apply_matches(matches)
  string = clone
  string.apply_matches! matches
  string
end

#apply_matches!(matches) ⇒ Object

Replace capture group references in self with appropriate data from matches. Modifies the receiver. The receiver need not match the matches.regexp.

:matches: A MatchData object returned by Regexp#match



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# File 'lib/pattern_patch/core_ext/string.rb', line 7

def apply_matches!(matches)
  search_position = 0
  while (m = /\\(\d+)/.match(self, search_position))
    capture_group = m[1].to_i
    search_position = index m[0]
    gsub! m[0], matches[capture_group]
    search_position += matches[capture_group].length
  end
  nil
end