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© Copyright Frank D. Kanu 2000-2008

The wpautop function (file formatting.php) is rather buggy: not all <p> have a </p> and vice versa. Duplicated <br /> get replaced with a single one.

The first is bad for obvious reasons, the second tampers with my formatting. I changed

Below is the changed function the way I use it:
No <p> and </p> but <br /> instead and leaving multiple line breaks (even when empty) intact.

You might also want to check
wpautop - bug
Missing close </p> tag in wpautop
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function wpautop($pee, $br = 1) {
	$pee = $pee . "n"; // just to make things a little easier, pad the end
	$pee = preg_replace('|<br />s*<br />|', "nn", $pee);
	// Space things out a little
	$allblocks = '(?:caption|colgroup|div|dl|dd|dt|ul|ol|pre|select|form|address|math|style|script|object|input|param)';

	$pee = preg_replace('!(</' . $allblocks . '>)!', "$1n", preg_replace('!(<' . $allblocks . '[^>]*>)!', "n$1", $pee));

	$pee = str_replace('[<br />]*<br /><br /></blockquote>', '<br /><br /></blockquote>',
         str_replace('</blockquote>', '<br /><br /></blockquote>', str_replace('<br>', '<br />', $pee)));

	$pee = str_replace(array("rn", "r"), "n", $pee); // cross-platform newlines
	if ($br) {
		$pee = preg_replace('/<(script|style).*?</\1>/se', 'str_replace("n", "<WPPreserveNewline />", "\0")', $pee);
		$pee = preg_replace('|(?<!<br />)n|', "<br />n", $pee); // optionally make line breaks
		$pee = str_replace('<WPPreserveNewline />', "n", $pee);
	}
	if ( strstr( $pee, '<pre' ) )
		$pee = preg_replace('!(<pre.*?>)(.*?)</pre>!ise', " stripslashes('$1') .  stripslashes(clean_pre('$2'))  . '</pre>' ", $pee);

	return $pee;
}

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buggy  formatting  wordpress  wpautop
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