[wp-trac] [WordPress Trac] #23185: Hyphens surrounded by non-breaking spaces are not texturized

[WordPress Trac]

#23185: Hyphens surrounded by non-breaking spaces are not texturized
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 Reporter:  redsweater       |       Type:  defect (bug)
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Formatting
  Version:  trunk            |   Severity:  normal
 Keywords:                   |
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 Thanks to Ticket #8161, a single hyphen or double hyphen surounded by
 space is converted to an en-dash or em-dash, respectively.

 The problem is this conversion doesn't take place as expected when the
 space immediately before or after the affected hypehns is a non-breaking
 space.

 Example paste the following into a post as HTML and view it in a browser
 after texturization:

 Line 1&nbsp;-&nbsp;Non-breaking spaces around the hyphen.<br>
 Line 2 - Regular spaces around the hyphen.<br>
 Line 3&nbsp;- Non-breaking space before the hyphen.<br>
 Line 4 --&nbsp;Non-breaking space after the double-hyphen.<br>
 Line 5 -- Regular spaces around the double-hyphen.

 Only the lines where "Regular spaces" are around the hyphens get converted
 as expected.Lines 1, 3, and 4 are not converted to match their regular-
 space counterparts.

 It's reasonable to use non-breaking spaces in web content and I think that
 for situations where a non-breaking space is used it should imply the same
 kind of texturization for the hyphens as a regular space does.

 The attached patch removes the static replacement rules for hyphens and
 adds dynamic rules to meet this expectation. I had to add a dynamic rule
 '--' to prevent it being prematurely converted in the static phase, when
 it was surrounded by appropriate spacing. Since I havd to move that one
 from static to dynamic, it made sense to me to just have all the hyphen-
 conversion behavior in one place in dynamic.

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Ticket URL: <http://core.trac.wordpress.org/ticket/23185>
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