Matchdata#end one character after match?

ruby-talk
1

T.,

I know this is probably just the way it works, but I
was a bit antiPOLSed.

irb(main):016:0> md = /X/.match("yzXrb")
=> #<MatchData:0x402fbe8c>
irb(main):018:0> p md.begin(0)
2
=> nil
irb(main):017:0> p md.end(0)
3
=> nil

3 and not 2?

irb(main):018:0> md = /(?=X)/.match("yzXrb")
=> #<MatchData:0x28c2dc0>
irb(main):019:0> p md.begin(0)
2
=> nil
irb(main):020:0> p md.end(0)
2
=> nil

    Does it make more sense now?

    - Warren Brown