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From: enami@ptgd.sony.co.jp (enami tsugutomo)
Newsgroups: gnu.emacs.bug
Subject: backtracking fails in regexp
Message-ID: <9002030218.AA04981@chihaya.ptgd.sony.co.jp>
Date: 3 Feb 90 02:18:39 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
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Dear,

In GNU Emacs 18.55.0 of Mon Jan 29 1990 on chihaya (berkeley-unix)

My emacs says that the value of following expression is ("aaaa" . "a"),
but I think it should be ("aaa" . "a"), or an error.

(let ((str "aaaa"))
  (string-match "\\(a\\|bc\\)+\\(a\\)" str)
  (cons (substring str (match-beginning 1) (match-end 1))
	(substring str (match-beginning 2) (match-end 2)) ))

enami.