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bug#17509: 23.4; bug with regexp in java-mode
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From: |
Stefan Monnier |
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Subject: |
bug#17509: 23.4; bug with regexp in java-mode |
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Date: |
Fri, 16 May 2014 17:48:18 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) |
>>> (setq defun-prompt-regexp "\\(class\\|/\\*\\*\\)[^{]*")
>> Why is this an Emacs bug, and not user error?
> Because I suppose that Emacs should never hang...
FWIW, the exponential blowup that can happen in regexp matching is
indeed a misfeature of Emacs's current regexp matcher.
But it's been that way "for ever" and there's no promising sign of an
upcoming fix for it.
Stefan