note 27484 added to function.nl2br

Hanging indents: Regarding Matt's note of 15-Oct-2002: I like the idea of having most of my html in a plain text file, and then PHP automatically wrapping it with paragraph tags. I am also fond of hanging indentations which I indicate by a normal line, followed by tabs in subsequent lines. This whole section I wrap in a <hang>...</hang> tag (so sections separated by two newlines will receive a break). Here's how I parse it (there is some variation to the autoP function): function hangPar ($text) { $hangP = "<P style=text-indent:-2em;margin-left" . ":2em;margin-top:0;margin-bottom:0>"; $pre = "^(?!<P\\b)(?!\\t)(.+)"; while (preg_match("/^(.*)<hang>(.*?)<\\/hang>(.*)$/s", $text, $matches)) { // turn lines followed by tabbed lines into hanging indents $hang = preg_replace("/$pre(((\\n\\t).*)+)/mi", "$hangP$1<br >$2</P >", $matches[2]); // turn singleton lines without tabs into solo paragraphs $hang = preg_replace ("/$pre\\n(?!\\t)/mi", "$hangP$1</P >\n", $hang); // break between sections $hang = preg_replace ("/\\n\\n+/", "\n<br >", $hang); $text = $matches[1] . $hang . $matches[3]; } return $text; } function autoP($txt) { $txt = preg_replace("/(\r\n|\n|\r)/", "\n", $txt); // cross-platform newlines $txt = preg_replace("/\n\n+/", "\n\n", $txt); // take care of duplicates $txt = hangPar($txt); // do hanging indents // bold single lines - assume they're headings $txt = preg_replace('/\n\n([^\n]+)\n\n/', "\n<br ><br ><font size=+1><b>$1</b></font>\n\n", $txt); // make paragraphs $txt = preg_replace("/\\n\\n(?!<P\\b)(.+?)(\\n\\n|\\z)/msi", "\n\n<p >$1</p >\n\n", $txt); $txt = preg_replace("/\\n\\n(?!<P\\b)(.+?)(\\n\\n|\\z)/msi", "\n\n<p >$1</p >\n\n", $txt); return $txt; } NOTE: The look of negative lookahead - (?! - in line 9,10 of autoP could be extended to preclude certain or all elements (such as tables by means of (?!<table\\b)) from being wrapped in paragraph tags. As Matt noted, there has been a space added after the br, P, and /P tags for formatting reasons. You should remove those (from lines 6,8,10 of hangPar and lines 7,9, 10 of AutoP). Csaba Gabor -- http://www.php.net/manual/en/function.nl2br.php http://master.php.net/manage/user-notes.php?action=edit+27484 http://master.php.net/manage/user-notes.php?action=delete+27484 http://master.php.net/manage/user-notes.php?action=reject+27484