Subject: bug#15251: 24.3.50; do-auto-fill "continues" comment from inside a string

From: Dmitry Gutov <[email-masked]>
Date: Tue, 03 Sep 2013 04:26:26 +0300

In certain conditions, if I press SPC, and a string on the current line
contains text matching `comment-start-skip', the filling is performed,
and the newly created line starts with a comment.

Examples (point is at |, fill-column is 70):

ruby-mode:

aa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa#{}a" a|

press SPC =>

aa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa#{}a"
                                #a

js-mode:

aa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa//a" aa|

press SPC =>

aa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa//a"
//aa