I don't think a programatic solution would work well. What I think could work quite well and doesn't seem to be too hard to implement or to be too hard on the server would be to show something like
Your post is kinda long. Please consider adding a <readmore> tag! on top of the preview page if the text is longer than X characters. That way you get a warning (or information that something like <readmore> exists), but it's up to you whether and where do you add the tag.
Jenda
Always code as if the guy who ends up maintaining your code
will be a violent psychopath who knows where you live.
-- Rick Osborne
Edit by castaway - changed code-tag around the readmore to html-escaped <, > Edit by castaway: Closed small tag in signature
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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