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Title:       raw-text to HTML Formatter
Contributor: Jeffrey Paul (aka sneak)
Last Update: Friday March 31 00:22 EDT 2000

<?php

/**********************************************************************
 *  string htmlescape(string $input)                                  *
 **********************************************************************
 *  This function will take a given input string and strip out all    *
 *  high-ascii characters, and properly replace © (0xA9) and     *
 *  ® (0xA8) with '&copy;' and '&reg;', respectively.     *
 *                                                                    *
 *  It will also replace ampersands (&) with '&amp;',         *
 *  quotation marks (") with  '&quot;', and less than        *
 *  (<) and greater than (>) signs with their                   *
 *  appropriate html substitute ('&lt;' and '&gt;',           *
 *  respectively).                                                    *
 *                                                                    *
 *  It strips all ascii below 32 except for tabs, newlines,           *
 *  form feeds, and carriage returns.                                 *
 *                                                                    *
 *  This would be suitable for posting code or other textual data in  *
 *  a <pre></pre> tag set, while retaining the printable  *
 *  and html-escapable data and format.                               *
 *                                                                    *
 *  As usual, more could be done, but I'm lazy. See:                  *
 *  http://www.w3.org/TR/1999/REC-html401-19991224/sgml/entities.html *
 *                                                                    *
 *  Oh, it's also really slow.  It could probably be done faster      *
 *  with ereg_replace() or somesuch, but it's a hack.                 *
 **********************************************************************/
function htmlescape ($input) {

$output = '';

while(1)  {
if($input == '')
        break;

$ch = substr($input,0,1);
$templen = strlen($input) - 1;
$input = substr($input,1,$templen);


if($ch == "\\xA9") $ch = '&copy;';
if($ch == "\\xA8") $ch = '&reg;';
if($ch == '&') $ch = '&amp;';
if($ch == '"') $ch = '&quot;';
if($ch == '<') $ch = '&lt;';
if($ch == '>') $ch = '&gt;';

if(ord($ch) > 126) $ch = '';
if(ord($ch) < 9) $ch = '';
if(ord($ch) == 11) $ch = '';
if(ord($ch) > 14 && ord($ch) < 32) $ch = '';

$output = $output . $ch;
}


return($output);
}
/**********************************************************************/

?>

        Anyone who wishes to make additions or changes to this
PHP Tip email them to webmaster@linuxguruz.org

        This document is Copyright (c) 1999, 2000 by LinuxGuruz

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