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  1. s = "GE.O A SSSS !@# world E A A D a9e DX.X you"
  2. r = /(?-i)(?<=\s|^)[A-Z]{1,4}(\.[A-Z]{1,2})?(?=\s|$)/
  3.  
  4.  
  5. if s =~ r 
  6. 	matches = s.to_enum(:scan, r).map { Regexp.last_match }
  7. 	puts matches
  8. 	puts matches.to_s
  9.         puts matches.length 
  10.         puts matches.kind_of?(Array) 
  11.         puts matches.include?("A")
  12. end
Success #stdin #stdout 0s 4760KB
comments (?)
stdin 
Standard input is empty
stdout 
GE.O
A
SSSS
E
A
A
D
DX.X
[#<MatchData "GE.O" 1:".O">, #<MatchData "A" 1:nil>, #<MatchData "SSSS" 1:nil>, #<MatchData "E" 1:nil>, #<MatchData "A" 1:nil>, #<MatchData "A" 1:nil>, #<MatchData "D" 1:nil>, #<MatchData "DX.X" 1:".X">]
8
true
false
https://ideone.com/JPAoh
language:
Ruby (ruby 2.5.5)
created:
13 years ago
visibility:
public

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