How can I change this function to add a line break ? | Familiar Sight | | Join Date: Jan 2009
Posts: 165
| |
Hi,
I am using a function called htmlwrap() which states that it
does NOT add a "<br>" to the 70 character
line so that it forces a line wrap.
( the script safely wraps long words without destroying
html tags which wordwrap has a tendency of doing! ))
What I want to do is add that line break so that it DOES force a
line wrap - but I am not sure where to insert it in the function
Can anyone suggest which line of the following function to change ? - /* htmlwrap() is a function which wraps HTML by breaking long words and
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* preventing them from damaging your layout. This function will NOT
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* insert <br /> tags every "width" characters as in the PHP wordwrap()
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* function.
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*/
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function htmlwrap($str, $width = 70, $break = "\n", $nobreak = "") {
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// Split HTML content into an array delimited by < and >
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// The flags save the delimeters and remove empty variables
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$content = preg_split("/([<>])/", $str, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
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// Transform protected element lists into arrays
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$nobreak = explode(" ", strtolower($nobreak));
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// Variable setup
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$intag = false;
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$innbk = array();
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$drain = "";
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// List of characters it is "safe" to insert line-breaks at
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// It is not necessary to add < and > as they are automatically implied
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$lbrks = "/?!%)-}]\\\"':;&";
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// Is $str a UTF8 string?
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$utf8 = (preg_match("/^([\x09\x0A\x0D\x20-\x7E]|[\xC2-\xDF][\x80-\xBF]|\xE0[\xA0-\xBF][\x80-\xBF]|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}|\xED[\x80-\x9F][\x80-\xBF]|\xF0[\x90-\xBF][\x80-\xBF]{2}|[\xF1-\xF3][\x80-\xBF]{3}|\xF4[\x80-\x8F][\x80-\xBF]{2})*$/", $str)) ? "u" : "";
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while (list(, $value) = each($content)) {
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switch ($value) {
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// If a < is encountered, set the "in-tag" flag
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case "<": $intag = true; break;
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// If a > is encountered, remove the flag
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case ">": $intag = false; break;
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default:
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// If we are currently within a tag...
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if ($intag) {
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// Create a lowercase copy of this tag's contents
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$lvalue = strtolower($value);
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// If the first character is not a / then this is an opening tag
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if ($lvalue{0} != "/") {
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// Collect the tag name
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preg_match("/^(\w*?)(\s|$)/", $lvalue, $t);
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// If this is a protected element, activate the associated protection flag
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if (in_array($t[1], $nobreak)) array_unshift($innbk, $t[1]);
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// Otherwise this is a closing tag
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} else {
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// If this is a closing tag for a protected element, unset the flag
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if (in_array(substr($lvalue, 1), $nobreak)) {
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reset($innbk);
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while (list($key, $tag) = each($innbk)) {
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if (substr($lvalue, 1) == $tag) {
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unset($innbk[$key]);
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break;
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}
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}
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$innbk = array_values($innbk);
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}
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}
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// Else if we're outside any tags...
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} else if ($value) {
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// If unprotected...
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if (!count($innbk)) {
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// Use the ACK (006) ASCII symbol to replace all HTML entities temporarily
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$value = str_replace("\x06", "", $value);
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preg_match_all("/&([a-z\d]{2,7}|#\d{2,5});/i", $value, $ents);
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$value = preg_replace("/&([a-z\d]{2,7}|#\d{2,5});/i", "\x06", $value);
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// Enter the line-break loop
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do {
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$store = $value;
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// Find the first stretch of characters over the $width limit
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if (preg_match("/^(.*?\s)?([^\s]{".$width."})(?!(".preg_quote($break, "/")."|\s))(.*)$/s{$utf8}", $value, $match)) {
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if (strlen($match[2])) {
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// Determine the last "safe line-break" character within this match
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for ($x = 0, $ledge = 0; $x < strlen($lbrks); $x++) $ledge = max($ledge, strrpos($match[2], $lbrks{$x}));
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if (!$ledge) $ledge = strlen($match[2]) - 1;
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// Insert the modified string
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$value = $match[1].substr($match[2], 0, $ledge + 1).$break.substr($match[2], $ledge + 1).$match[4];
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}
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}
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// Loop while overlimit strings are still being found
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} while ($store != $value);
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// Put captured HTML entities back into the string
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foreach ($ents[0] as $ent) $value = preg_replace("/\x06/", $ent, $value, 1);
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}
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}
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}
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// Send the modified segment down the drain
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$drain .= $value;
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}
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// Return contents of the drain
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return $drain;
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}
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?>
|  | Expert | | Join Date: Dec 2007 Location: Moon, Dark Side
Posts: 1,095
| | | re: How can I change this function to add a line break ?
Why not just use wordwrap() ?
Dan
| | Familiar Sight | | Join Date: Jan 2009
Posts: 165
| | | re: How can I change this function to add a line break ?
From my first post: Quote:
( the script safely wraps long words without destroying
html tags which wordwrap has a tendency of doing! ))
Anyone know how to insert this line break ?
| | Expert | | Join Date: Dec 2007 Location: Moon, Dark Side
Posts: 1,095
| | | re: How can I change this function to add a line break ?
Quote:
Originally Posted by jeddiki  From my first post:
Anyone know how to insert this line break ? Ya, but you continue as Quote:
What I want to do is add that line break so that it DOES force a
line wrap
So I don't get it...do you want to break HTML or not?
| | Familiar Sight | | Join Date: Jan 2009
Posts: 165
| | | re: How can I change this function to add a line break ?
This function htmlwrap() does not add a line break - that is what it says in the description - but that is exactly why I want to modify it
I want to have a line break inserted at the end of 70 characters,
unless doing so will break a html tag - it that case, keep going
until outside the tags - then insert the line break.
This function htmlwrap() is very close to what I want because it carefully
leaves the hyperlinks ( and any other html tags ) intact - it won't touch them.
Wordwrap() on the other hand can not do this - it wrecks my hyperlinks.
So what I want to do is modify this htmlwrap so that it DOES put the
line break in and force a wrap without damaging my hyperlinks.
Can you see a way to modify this function ?
Thanks
| | Expert | | Join Date: Dec 2007 Location: Moon, Dark Side
Posts: 1,095
| | | re: How can I change this function to add a line break ?
Well right in the definition it gives you away to put your own type of break in instead of the default "\n"
What happens if you call the function with the third param as "<br/>" ?
Dan
| | Familiar Sight | | Join Date: Jan 2009
Posts: 165
| | | re: How can I change this function to add a line break ?
Well Dan
That is a good idea,
and to be honest, I would have been petty embarrassed
if it had worked ;-)
Although, of course I wanted it to because I want to close the problem.
Unfortunately, it did not make any difference. :(
| | Familiar Sight | | Join Date: Jan 2009
Posts: 165
| | | re: How can I change this function to add a line break ?
Hi all,
Last week I emailed the programmer who wrote this script
to see if he could help me put a line break into it
and force the wrap.
Unfortunately he has not replied, so I am still looking for a solution :(
It is not a very long script, but it is a bit too complicated for me.
Has anyone noticed how I can get my forced wrap ?
Thanks.
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