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40 Mon, 15 Oct 2012 19:59:29 -0700 (PDT)
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41 From: Ethan Glasser-Camp <ethan.glasser.camp@gmail.com>
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42 To: Mark Walters <markwalters1009@gmail.com>, Pieter Praet <pieter@praet.org>,
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43 David Bremner <david@tethera.net>,
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44 Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
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45 Subject: Re: [PATCH v2 4/6] emacs: add optional predicate arg to
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47 In-Reply-To: <87vclywxek.fsf@qmul.ac.uk>
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48 References: <87wr7xqpuf.fsf@rocinante.cs.unb.ca>
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49 <1330122640-18895-1-git-send-email-pieter@praet.org>
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51 <87vclywxek.fsf@qmul.ac.uk>
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52 User-Agent: Notmuch/0.14+45~g6ea9330 (http://notmuchmail.org) Emacs/23.3.1
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53 (x86_64-pc-linux-gnu)
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54 Date: Mon, 15 Oct 2012 22:59:27 -0400
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73 Mark Walters <markwalters1009@gmail.com> writes:
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75 > The original function feels a little fragile to me as to what happens if
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76 > predicate or function move point. Eg what happens if function collapses
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77 > the message: where does point go, and so where does
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78 > notmuch-show-goto-message-next go. Is this just my naivete as a lisp
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79 > beginner? Is there someway of writing it so the user doesn't need to
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80 > worry about such things?
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82 Although collapsing the message doesn't seem to move point, it would
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83 probably be a good idea to wrap the calls to predicate and function in
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84 save-excursion, as a guard against subtle and hard-to-spot bugs with
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85 operations not being applied to all the right messages..
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