scan(p1) public

Tries to match with pattern at the current position. If there’s a match, the scanner advances the "scan pointer" and returns the matched string. Otherwise, the scanner returns nil.

  s = StringScanner.new('test string')
  p s.scan(/\w+/)   # -> "test"
  p s.scan(/\w+/)   # -> nil
  p s.scan(/\s+/)   # -> " "
  p s.scan(/\w+/)   # -> "string"
  p s.scan(/./)     # -> nil
Show source
Register or log in to add new notes.