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prolog-mode uses bad syntax for _

From: Miles Bader
Subject: prolog-mode uses bad syntax for _
Date: Fri, 10 Oct 2008 15:28:20 +0900

prolog-mode changes the syntax of _ to be a word-constituent, which I
suspect is the wrong thing.  It does not interact well with users'
editing intuitions.

Most old modes that I've seen do this, do it only so that they can use
\< and \> in regexps (to match things like keywords) without getting
false positives adjacent to an underscore.  Nowdays we can just change
the regexps to use \_< and \_> instead, so _ should be able to have a
more normal syntax.

Anyone see any problems with changing prolog-mode in this fashion?



If you can't beat them, arrange to have them beaten.  [George Carlin]

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