A Suggestion for Strikethrough Syntax

[Bill Eccles]

All,

Hopefully, I'm not covering old territory, and a search of the list  
archives seems to indicate that I'm not. If I am, then I extend my  
apologies in advance.

I use strikethrough a lot so I modify my Movable Type Markdown module  
as shown below, right about line 1040 or so. I assume other Markdown  
implementations can use this change as well:

sub _DoItalicsAndBold {
    my $text = shift;

    # <strong> must go first:
    $text =~ s{ (\*\*|__) (?=\S) (.+?[*_]*) (?<=\S) \1 }
        {<strong>$2</strong>}gsx;

    $text =~ s{ (\*|_) (?=\S) (.+?) (?<=\S) \1 }
        {<em>$2</em>}gsx;

    # These lines added by Bill Eccles, 2008-07-04
    $text =~ s{ (\s) (-) (?=\S) (.+?) (?<=\S) (-) }
    {$1<strike>$3</strike>}gsx;

    return $text;
}

It converts

    -text to be struck through-

to

    <strike>text to be struck through</strike>.

Simple, and it works for me.

(I detail it at <http://www.bill.eccles.net/bills_words/2008/07/a-test-entry-with-markdownstri.html 
 >.)

Thoughts?

/Bill
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