BBcode Parser + Highlighter
Door Richard van Velzen, 23 jaar geleden, 9.569x bekeken
Ik werd het zwaar zat om steeds regex-based bbcode 'parsers' te zien, die niet bepaald soepel waren, en moeilijk uit te breiden voor beginners.
Met deze class hoop ik hier verandering in te kunnen brengen door het stackbased te parsen.
Deze class parsed eerst alles in delen, waarbij het bijvoorbeeld eerst een tag, dan tekst, dan weer tags in een array komen te staan, waarna het script erdoorheen lust, en op die manier het parsen van bbcode binnen bepaalde tags ZEER simpel kan maken. Op deze manier heb ik er ook voor gezorgd dat je code tags kunt nesten, zodat als je [.code.] en [./code.] binnen je code hebt staan, hij niet direct bij de 2e sluit.
Voor meer informatie over gebruik, zie de readme in de zip (het zijn te veel bestanden om hier te posten - vooral te veel data).
UPDATE 1.1: js en css nu in de zip toegevoegd, readme uitgebreid, en wat bugs eruit gesloopt;)
Gesponsorde koppelingen
PHP script bestanden
Er zijn 33 reacties op 'Bbcode parser highlighter'
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Beetje veel commentaar tussen de code om een snel overzicht te krijgen, maar 't ziet er goed uit :D
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ziet er erg goed uit...
het zijn precies de codes van PHPhulp, maar die bevallen me wel hoor:p
het zijn precies de codes van PHPhulp, maar die bevallen me wel hoor:p
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Ziet er idd heel netjes uit! Ik was zelf net van plan zoiets te gaan schrijven, maar aan de code te zien was dat toch niet zo eenvoudig geweest als ik eigenlijk dacht :) Je methode heet trouwens een stack-based parser, dat is misschien wel handig om erbij te zetten in de toelichting.
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LOL, helemaal vergeten:P in het nieuwsbericht waardoor ik de aanleiding kreeg om het hier te posten stond het overigens wel:P
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Bedankt voor het delen en met name dat dit ook leesbaar is voor beginners :)
Fijn dat je dit met ons wil delen!!!
Fijn dat je dit met ons wil delen!!!
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Tja, iedereen heeft profijt van een ECHTE parser, die nog veel meer functionaliteit heeft ook;)
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Enige wat ik mis zijn smilies, zoek nu even uit hoe moeilijk het is ze toe te voegen. Ziet er overigens erg netjes uit, vooral de code highlight.
Dat de preg_replace dingen veel gebruikt worden, is niet zo moeiljik te verklaren overigens. Het werkt gewoon zoals de bedoeling is, het zal [.b.] test niet doen, maar [.b.] test [./b.] wél., gewono veiliger. Weet niet hoe he tmet jou script zit, dat ga ik nu even proberen ;).
Even testen, werkt allemaal vrij netjes. het [.b.] verhaal werkt echt zeer soepel, als ik start, zet ie aan het einde gewono [./b.] neer.
Helaas ben ik neit zo te spreken van de standaard layout, en (nieuw venster) werkt ook niet in FF & IE, JS error:
Fout open_content is not defined
Bronbestand javascript:open_content('field_1', 400, 400);
Regel 1
Ik heb even jouw bron gekopieërd (CSS& JS) en het werkt nu véle malen mooier. Misschien een idee dit erbij te vermelden (heb ik wat gemist misschien ?)
Functies in een nieuw venster is misschien een idee? (of ivb met XHTML Strict niet..?)
Code in venster vindt ik opzich ook een hele leuke optie (code downloaden is ook leuk), alleen jammergenoeg vult het me hele scherm? Mooier zou een kleiner schermpje zijn.
Dat de preg_replace dingen veel gebruikt worden, is niet zo moeiljik te verklaren overigens. Het werkt gewoon zoals de bedoeling is, het zal [.b.] test niet doen, maar [.b.] test [./b.] wél., gewono veiliger. Weet niet hoe he tmet jou script zit, dat ga ik nu even proberen ;).
Even testen, werkt allemaal vrij netjes. het [.b.] verhaal werkt echt zeer soepel, als ik start, zet ie aan het einde gewono [./b.] neer.
Helaas ben ik neit zo te spreken van de standaard layout, en (nieuw venster) werkt ook niet in FF & IE, JS error:
Fout open_content is not defined
Bronbestand javascript:open_content('field_1', 400, 400);
Regel 1
Ik heb even jouw bron gekopieërd (CSS& JS) en het werkt nu véle malen mooier. Misschien een idee dit erbij te vermelden (heb ik wat gemist misschien ?)
Functies in een nieuw venster is misschien een idee? (of ivb met XHTML Strict niet..?)
Code in venster vindt ik opzich ook een hele leuke optie (code downloaden is ook leuk), alleen jammergenoeg vult het me hele scherm? Mooier zou een kleiner schermpje zijn.
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Als ik dan even voor Richard mag antwoorden; dat alleen [.b] niet werkt doet deze uiteraard ook, en nog beter ook. Hiermee zijn ook veel beter geneste tags af te handelen. Doordat het stack-based is wordt meteen gecontroleerd of alles wat geopend wordt ook (op het goede moment) weer gesloten wordt. Smileys en BB-codes zijn niet hetzelfde, vandaar dat Richard die hier niet bij heeft zitten natuurlijk.
@Richard, als ik wat verkeerd zeg corrigeer me maar :)
@Richard, als ik wat verkeerd zeg corrigeer me maar :)
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Warning: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of method_exists(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. However, future versions may not support this any longer. in C:\Webserver\www\ubb\text_parser.class.php on line 378
Werkt niet helemaal lekker...
('t is maar een warning, maar toch)
Overigens: Apache/2.0.55 (Win32) PHP/5.0.5 Server at localhost Port 80
Werkt niet helemaal lekker...
('t is maar een warning, maar toch)
Overigens: Apache/2.0.55 (Win32) PHP/5.0.5 Server at localhost Port 80
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De code ziet er goed uit mooi script. Alleen nog een in en uitklap functie in Javascript voor de kader breedtes en dit script kan op phphulp.
Volgens mij kun je gewoon regel 378 vervangen door:
Er wordt gecontroleerd of een bepaalde methode bestaat in het huidige object, waarom je dan het object als referencie meegeeft is mij een raadsel.
Quote:
Warning: Call-time pass-by-reference has been deprecated ... in C:\Webserver\www\ubb\text_parser.class.php on line 378
Volgens mij kun je gewoon regel 378 vervangen door:
Er wordt gecontroleerd of een bepaalde methode bestaat in het huidige object, waarom je dan het object als referencie meegeeft is mij een raadsel.
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Bedankt voor de reacties en opmerkingen! ik ga meteen de code wijzigen, en opnieuw zippen plus uploaden;)
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De download is geupdate. Ik heb de readme flink uitgebreid, met uitleg hoe je nieuwe tags en bijvoorbeeld smilies kunt toevoegen. Ook zitten de javascript en css nu bij de zip in.
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Ik heb een in en uitklap functie
in Javascript gemaakt voor de code tags:
http://fairplayweb.nl/martijn/bb/
Getest op: Firefox 1.5.0.1 en IE 6.0
Zo en nu even installeren op phphulp ;D
in Javascript gemaakt voor de code tags:
http://fairplayweb.nl/martijn/bb/
Getest op: Firefox 1.5.0.1 en IE 6.0
Zo en nu even installeren op phphulp ;D
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Hier dus wel, zie je de pijltjes wel?
Zo niet, dan staat Javascript uit waarschijnlijk.
Zo niet, dan staat Javascript uit waarschijnlijk.
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Ik zie alles, maar als ik op de pijltjes klik word de tabel vervormd zodat de code erin past, meer gebeurt niet;) maar ik heb zelf wel een scriptje dat ik erin zal bouwen.
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Ehm.. dat is toch ook de bedoeling? Dan kun je nl. het hele script zien zonder te scrollen ;).
Overigens zou het mooi zijn (weet niet of het mogelijk is) om de scrollbar alleen te tonen wanneer nodig, bij het voorbeeld de 2e zou het niet nodig zijn. Weet niet of het mogelijk is..
Overigens zou het mooi zijn (weet niet of het mogelijk is) om de scrollbar alleen te tonen wanneer nodig, bij het voorbeeld de 2e zou het niet nodig zijn. Weet niet of het mogelijk is..
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inklap != alles laten zien, maar het code gedeelte verbergen;) daar zijn nog wel iets meer aanpassingen voor nodig. komt in de volgende release!
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Is het mogelijk om je code te ZIPPEN, het ZIP scriptje heb ik namelijk wel maar het lukt mij niet om op eenvoudige wijze de code in te pakken in een tekstbestand en deze te laten zippen...
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Ja inderdaad, de code die je ziet als highlighted code. Die code wil ik inpakken in een ZIP-bestand door de code in een tekstbestand te schrijven en dat vervolgens met een linkje direct te laten ZIPPEN en dat je gelijk het downloadvenster krijgt.
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Ik ben eerst bezig de code te herschrijven (ik ga alles in andere bestanden zetten etc.), daarna zal ik deze (eenvoudige;)) optie inbouwen.
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Hahaha... eenvoudige zegt ie dan, nou ik puzzle dan nog wel even verder (iets wat ik nu al een hele dag doe)... ben nog niets opgeschoten
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Het is in principe heel simpel;) Je maakt een nieuwe class member aan, bijvoorbeeld _code_blocks, in de _parse_bb_code method laat je ieder geparsed block opslaan in de _code_blocks (of natuurlijk de niet gehighlighte code), die kun je met een nieuwe method uitlezen;) makkie eigelijk.
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Ik heb een klein stukje code toegevoegd om te checken of het wel echt een plaatje is wat men invoegt!
dit moet onder
komen te staan in het bestand "text_parser.class.php" in plaats van het stukje code wat hieronder staat in de functie _parse_bb_img
voor de mensen die dit beetje lastige beschrijving vinden heb ik hier nog even de hele file text_parser.class.php
Code (php)
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<?php
$known_img_ext = array( 'jpg','gif','jpeg','png');
// we only want img with ext. wich are in the $known_img_ext array so we get the ext. and check if the ext. is allowed
$ext = substr (strrchr ($img, "."), 1);
// go back into bb_mode
$this->_bb_mode = true;
if( in_array ($ext, $known_img_ext) AND !ereg('\?', $img) AND !ereg('\&', $img) ) { // if ext. is allowed
// get some basic arguments
$width = (isset ($args['width'])) ? $args['width'] : 0;
$height = (isset ($args['height'])) ? $args['height'] : 0;
$alt = (isset ($args['alt'])) ? $args['alt'] : '';
// create the return statement
$return = '<img src="' . $img . '"';
$return .= ($width) ? ' width="' . $width . '"' : '';
$return .= ($height) ? ' height="' . $height . '"' : '';
$return .= ($alt) ? ' alt="' . $alt . '"' : '';
$return .= ' />';
}
else {
$return = "<div style='border: 1px solid red; background-color: #D3D3D3;'><div style='border: 1px solid red; border-bottom: 2px solid red; background-color: #FF8040; padding-left: 5px; padding-right: 5px; text-color: red; font-weight: bold;'>IMG ERROR:</div><div style='padding: 5px;'>";
if( ereg('\&', $img) )
$return .= "Sorry, er mag geen & teken in de bestandsnaam voorkomen!<br />";
if( ereg('\?', $img) )
$return .= "Sorry, er mag geen ? teken in de bestandsnaam voorkomen!<br />";
if( !in_array($ext, $known_img_ext) )
$return .= "Sorry, deze extentie (".$ext.") is niet toegestaan!<br />";
$return .= "</div></div>";
}
?>
$known_img_ext = array( 'jpg','gif','jpeg','png');
// we only want img with ext. wich are in the $known_img_ext array so we get the ext. and check if the ext. is allowed
$ext = substr (strrchr ($img, "."), 1);
// go back into bb_mode
$this->_bb_mode = true;
if( in_array ($ext, $known_img_ext) AND !ereg('\?', $img) AND !ereg('\&', $img) ) { // if ext. is allowed
// get some basic arguments
$width = (isset ($args['width'])) ? $args['width'] : 0;
$height = (isset ($args['height'])) ? $args['height'] : 0;
$alt = (isset ($args['alt'])) ? $args['alt'] : '';
// create the return statement
$return = '<img src="' . $img . '"';
$return .= ($width) ? ' width="' . $width . '"' : '';
$return .= ($height) ? ' height="' . $height . '"' : '';
$return .= ($alt) ? ' alt="' . $alt . '"' : '';
$return .= ' />';
}
else {
$return = "<div style='border: 1px solid red; background-color: #D3D3D3;'><div style='border: 1px solid red; border-bottom: 2px solid red; background-color: #FF8040; padding-left: 5px; padding-right: 5px; text-color: red; font-weight: bold;'>IMG ERROR:</div><div style='padding: 5px;'>";
if( ereg('\&', $img) )
$return .= "Sorry, er mag geen & teken in de bestandsnaam voorkomen!<br />";
if( ereg('\?', $img) )
$return .= "Sorry, er mag geen ? teken in de bestandsnaam voorkomen!<br />";
if( !in_array($ext, $known_img_ext) )
$return .= "Sorry, deze extentie (".$ext.") is niet toegestaan!<br />";
$return .= "</div></div>";
}
?>
dit moet onder
Code (php)
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<?php
// get the url
$img = (isset ($args['img']))
? $args['img']
: $this->_parse ('[/img]');
?>
// get the url
$img = (isset ($args['img']))
? $args['img']
: $this->_parse ('[/img]');
?>
komen te staan in het bestand "text_parser.class.php" in plaats van het stukje code wat hieronder staat in de functie _parse_bb_img
Code (php)
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<?php
// go back into bb_mode
$this->_bb_mode = true;
// get some basic arguments
$width = (isset ($args['width'])) ? $args['width'] : 0;
$height = (isset ($args['height'])) ? $args['height'] : 0;
$alt = (isset ($args['alt'])) ? $args['alt'] : '';
// create the return statement
$return = '<img src="' . $img . '"';
$return .= ($width) ? ' width="' . $width . '"' : '';
$return .= ($height) ? ' height="' . $height . '"' : '';
$return .= ($alt) ? ' alt="' . $alt . '"' : 'Plaatje';
$return .= ' />';
?>
// go back into bb_mode
$this->_bb_mode = true;
// get some basic arguments
$width = (isset ($args['width'])) ? $args['width'] : 0;
$height = (isset ($args['height'])) ? $args['height'] : 0;
$alt = (isset ($args['alt'])) ? $args['alt'] : '';
// create the return statement
$return = '<img src="' . $img . '"';
$return .= ($width) ? ' width="' . $width . '"' : '';
$return .= ($height) ? ' height="' . $height . '"' : '';
$return .= ($alt) ? ' alt="' . $alt . '"' : 'Plaatje';
$return .= ' />';
?>
voor de mensen die dit beetje lastige beschrijving vinden heb ik hier nog even de hele file text_parser.class.php
Code (php)
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<?php
/**
* Text Parsing functions
* This class parses bbcode in a given text to html,
* but not in the way you'd expect. It creates an array
* in which all possible tags and text is stored, and
* it loops through, searching for correct tags, and
* attaches them to a new-built string. This way is
* much faster and more reliable than usual preg/ereg
* based parsers, and has taken quite a while;)
* It also includes the highlighthing class for the
* <b>Quality Bulletin Board</b>. It is very flexible,
* and works with language files, which are on
* their turn based on regular expressions.
* This makes it all very flexible, and easy to edit.
*
* @author JeXuS <[email protected]>
* @package TP
* @filesource
* @version 0.95b
* @date 12-02-2006
**/
// full error reporting
error_reporting (E_ALL);
/**
* This constant means that a regular expression
* does not need any modifiers.
*
* @name QBB_NONE
**/
define ('QBB_NONE', 0);
/**
* This constant means that a regular expression
* needs the '.' to match newlines too.
*
* @name QBB_DOTALL
**/
define ('QBB_DOTALL', 1);
/**
* This constant means that a regular expression
* has to match without case-sensitivity.
*
* @name QBB_CASELESS
**/
define ('QBB_CASELESS', 2);
/**
* Parse text to bbcode using stacks
*
* @author JeXuS <[email protected]>
* @copyright (c) 2005-2005 JeXuS.net
* @package TP
*
* @todo add smiley support
* @todo check if XSS protection is secure
**/
class bbcode
{
/**#@+
* @access protected
*/
/**
* Contains parsed text
*
* @var array _parsed
**/
var $_parsed = array ();
/**
* Contains aliases
*
* @var array _alias
**/
var $_alias = array (
'*' => 'li_short',
'hr' => 'line'
);
/**
* Parse tags?
*
* @var boolean _bb_mode
**/
var $_bb_mode = true;
/**
* Holds bbcode templates
*
* @var array _tpls
**/
var $_tpls = array ();
/**
* Regexes that'll be used
*
* @var array _regexes
**/
var $_regexes = array ();
/**
* All other simple replacement
*
* @var array _replaces
**/
var $_replaces = array ();
/**
* Check if we're inside tags
*
* Are we parsing inside a tag that's special?
* extra care taken, because tags
* may be nested
*
* @var array _in_tag
**/
var $_in_tag = array (
'list' => 0,
'table' => 0,
'tr' => 0
);
/**
* ID for div's
*
* @var integer _curr_id
**/
var $_curr_id = 1;
/**#@-*/
/**#@+
* @access public
**/
/**
* BBcode parsing constructor
*
* Sets up templates, autolinking etc.
*
* @param string [$tpl_file]
* @return boolean
**/
function bbcode ($tpl_file = './bbcode_tpl.htm')
{
// get the data from the tpl file
$data = file_get_contents ($tpl_file);
$data = str_replace ('\\', '\\\\', $data);
$data = str_replace ("'", "\'", $data);
// replace all bb parts with a PHP piece which will insert it
// into the tpl array
$data = preg_replace (
'/<!-- BEGIN BB ([^\s]+) -->(.*?)<!-- END BB \1 -->/si',
"\$this->_tpls['\\1'] = trim ('\\2');",
$data
);
// evaluate
eval ($data);
// some action for the replacement of email links etc.
$this->_regexes = array (
'find' => array (
// emails
'~(\s|^)([-a-z_][-a-z0-9._]*@[-a-z0-9_]+(?:\.[-a-z0-9_]+)+)\b~si',
// links with http, https, ftp or even irc
'~(\s|^)((?:https?|ftp|irc)://[-a-z0-9+&@#/%?=\~_|!:,.;]*[-a-z0-9+&@#/%=\~_|])\b~si',
// links with www.
'~(\s|^)((?:[a-z][-a-z0-9+&@#/%?=\~_|!:,.;]+)\.(?:[a-z]{2,6}))\b~si'
),
'replace' => array (
'\1<a href="mailto:\2">\2</a>',
'\1<a href="\2">\2</a>',
'\1<a href="http://\2">\2</a>',
)
);
// this can handle anything like smilies.
$this->_replace = array (
'find' => array (),
'replace' => array ()
);
// and return
return true;
}
/**
* Call this to return a parsed text
*
* @param string $text
* @return string
**/
function parse ($text)
{
// remove beginning and ending whitespaces
$text = trim ($text);
// replace all newlines with a linebreak tag (for later use)
$text = str_replace (array ("\r\n", "\r", "\n"), "[linebreak\0]", $text);
// cut the text in pieces so we can easily loop
$this->_create_array (htmlspecialchars ($text));
// parse the stack
$text = $this->_parse ();
// replace the linebreak tags with normal newlines
$return = str_replace ("[linebreak\0]", "<br />\n", $text);
// and return
return $return;
}
/**#@-*/
/**#@+
* @access protected
**/
/**
* Parse a template with given variables
*
* @param string $part
* @param array $args
* @return string
**/
function parse_bb_tpl ($part, $args)
{
// just a replace, with evaluation...
return preg_replace (
'/{([^}\s]+)}/e',
"isset (\$args['\\1']) ? \$args['\\1'] : '';",
$this->_tpls[$part]
);
}
/**
* Cut the text in pieces
*
* @param string $text
* @return boolean
**/
function _create_array ($text)
{
// empty the _parsed array
$this->_parsed = array ();
// loop as long as the text has content
while (strlen ($text) > 0)
{
// the first found bracket
$bracket = strpos ($text, '[');
// the second bracket
$second_bracket = strpos ($text, '[', $bracket + 1);
// and the first closer
$close = strpos ($text, ']');
// if there isnt a bracket or closer
if ($bracket === false || $close === false)
{
// the rest is just normal text
$this->_parsed[] = $text;
// return
return true;
}
// loop as long as the [ and ] aren't right
while ($close < $bracket || $second_bracket < $close)
{
// look if the second bracket comes before the closer
if ($second_bracket < $close)
{
// if so, $bracket gets the value of $second_bracket
$bracket = $second_bracket;
// the second bracket gets a new position
$second_bracket = strpos ($text, '[', $bracket + 1);
// if that wasn't matched right
if (!$second_bracket)
{
// the second bracket will be matched after the closer
$second_bracket = $close + 1;
}
}
// if the closer comes before the [
if ($close < $bracket)
{
// update the closer
$close = strpos ($text, ']', $close + 1);
}
}
// if the [ and ] seem to be correct
if ($bracket < $close && $close < $second_bracket)
{
// the text before the tag
$pre = substr ($text, 0, $bracket);
// if this is empty
if (strlen ($pre) > 0)
{
// add this to the _parsed
$this->_parsed[] = $pre;
// memory saving
$pre = '';
}
// put the text in _parsed
$this->_parsed[] = substr ($text, $bracket, $close - $bracket + 1);
// $text has to be updated
$text = substr ($text, $close + 1);
}
}
// return
return true;
}
/**
* Parse the text (already cut in pieces)
*
* @param array [$stoppers]
* @param array [$allow]
* @return string
**/
function _parse ($stoppers = array (), $allow = array ())
{
// if the stack is empty
if (!$this->_parsed)
{
// return nothing
return '';
}
// nested level and return text ''
$level = 0;
$text = '';
// simple check so we can easily check
if (!is_array ($stoppers))
{
$stoppers = array ($stoppers);
}
// for even levels with bb_mode off
$stoppers_leveled = array ();
// check for active bb_mode
if (!$this->_bb_mode)
{
// if it isn't active, we put all the stoppers in an array
// so we can check for the correct level
for ($i = 0, $size = count ($stoppers); $i < $size; $i++)
{
// use the tagname function
$stoppers_leveled[$this->_find_tagname ($stoppers[$i], false, true)] = true;
}
}
// flip the stoppers so we can use isset
$stoppers = array_flip ($stoppers);
$allow = array_flip ($allow);
// loop the pieces
while ($piece = array_shift ($this->_parsed))
{
// if it is a stopper
if (isset ($stoppers[$piece]))
{
// check for zero-level or bb_mode active
if (($level == 0 && !$this->_bb_mode) || $this->_bb_mode)
{
// if correct, return
return $text;
}
// otherwise...
else
{
// attach this piece
$text .= $piece;
// and lower the level
$level--;
}
}
// if it isn't a stopper
else
{
// check if we can find a tagname first
$name = $this->_find_tagname ($piece);
$name = ($name !== false && isset ($this->_alias[$name]))
? $this->_alias[$name]
: $name;
$allowed = (isset ($allow[$name]) || !$allow) ? true : false;
// if it was a valid tag, and the correct method exists
if ($name !== false
&& method_exists (&$this, '_parse_bb_' . $name)
&& $allowed === true)
{
// check if bb_mode is active
if ($this->_bb_mode)
{
// if so, find the complete tag without []
$args = $this->_find_tagname ($piece, true);
// parse the arguments
$args = $this->_parse_bb_arguments ($args);
// the correct method
$function = '_parse_bb_' . $name;
// append the parsed text to the text
$text .= $this->$function ($args);
}
// if bb_mode is unactive
else
{
// check if this is a stopper
if (isset ($stoppers_leveled[$name]))
{
// if so, update the level
$level++;
}
// and append
$text .= $piece;
}
}
// if it wasn't a tag
else
{
// check if we're in a disallowed zone
if (!$allow)
{
// if bb_mode is active
if ($this->_bb_mode)
{
// use the regexes to form a nicer text
$piece = preg_replace (
$this->_regexes['find'],
$this->_regexes['replace'],
$piece
);
$piece = str_replace (
$this->_replace['find'],
$this->_replace['replace'],
$piece
);
}
// just a normal append
$text .= $piece;
}
}
}
}
// after the loop just return
return $text;
}
/**
* find the name of a tag in a piece of the content
*
* @param string $name
* @param boolean [$complete]
* @param boolean [$closer]
* @return string
**/
function _find_tagname ($name, $complete = false, $closer = false)
{
// check if it could be valid
if (substr ($name, 0, 1) == '[' && substr ($name, -1) == ']')
{
// take off the [ and ]
$name = substr ($name, 1, -1);
// if it matches a /
if (substr ($name, 0, 1) == '/' && $closer !== false)
{
// take the / off too
$name = substr ($name, 1);
}
// if it should be the complete tag
if ($complete !== false)
{
// then return it now
return $name;
}
// otherwise use strtok to match untill ' ' or '='
return strtok ($name, ' =');
}
// if it wasn't valid, return boolean false
return false;
}
/**
* parse argument strings
*
* @param string $total
* @return array
**/
function _parse_bb_arguments ($total)
{
// instantiate for errors
$matches = array ();
// match everything like argument='blablabla bla' or argument=blabla or even arg='bla\'bla\\'bla\\'
preg_match_all (
'/([A-Za-z_]+?)=(?:(\'|")(.*?(?<!\\\\)(?:\\\\\\\\)*)\2|([^\s]+))' .
'(?:\s|$)/s',
$total,
$matches,
PREG_SET_ORDER
);
// put up the arguments array
$args = array ();
// loop through all matches
for ($i = 0, $size = count ($matches); $i < $size; $i++)
{
// check if the quoted value was empty
if (trim ($matches[$i][3]) == '')
{
// if the unquoted value was empty
if (trim ($matches[$i][4]) == '')
{
// the value is ''
$value = '';
}
// if not
else
{
// assign the unquoted value
$value = $matches[$i][4];
}
}
// otherwise
else
{
// assign the quoted value
$value = $matches[$i][3];
}
// erase whitespaces
$value = trim ($value);
// if the value wasn't empty
if ($value != '')
{
// assign this argument to our array
$args[strtolower ($matches[$i][1])] = $value;
}
}
// return the arguments
return $args;
}
/*
* THE PARSING FUNCTIONS BEGIN HERE
* a function should be built like this:
* name: _parse_bb_*tagname*
* 1 argument, $args for the given arguments
* pickup the content with $this->_parse (array ('stoppers1', 'stoppers2'));
* or with $this->_parse ('stopper');
* return.
**/
/**
* show bold text
*
* @param array $args
* @return string
**/
function _parse_bb_b ($args)
{
return '<b>' . $this->_parse ('[/b]') . '</b>';
}
/**
* show italic text
*
* @param array $args
* @return string
**/
function _parse_bb_i ($args)
{
return '<i>' . $this->_parse ('[/i]') . '</i>';
}
/**
* show underlined text
*
* @param array $args
* @return string
**/
function _parse_bb_u ($args)
{
return '<u>' . $this->_parse ('[/u]') . '</u>';
}
/**
* show striken text
*
* @param array $args
* @return string
**/
function _parse_bb_s ($args)
{
return '<s>' . $this->_parse ('[/s]') . '</s>';
}
/**
* show subscript text
*
* @param array $args
* @return string
**/
function _parse_bb_sub ($args)
{
return '<sub>' . $this->_parse ('[/sub]') . '</sub>';
}
/**
* show superscript text
*
* @param array $args
* @return string
**/
function _parse_bb_sup ($args)
{
return '<sup>' . $this->_parse ('[/sup]') . '</sup>';
}
/**
* show colored text
*
* @param array $args
* @return string
**/
function _parse_bb_color ($args)
{
// parse the text
$text = $this->_parse ('[/color]');
// check the color
$color = (isset ($args['color'])) ? $args['color'] : false;
// match it to a simple regex
$color = (preg_match ('/^(?:#(?:[a-f0-9]{3}){1,2}|[a-z]{3,})$/i', $color))
? $color
: false;
// return a span with the correct style if the color was correct
return ($color !== false) ? '<span style="color: ' . $color . ';">' .
$text . '</span>' : $text;
}
/**
* show text with other size
*
* @param array $args
* @return string
**/
function _parse_bb_size ($args)
{
// parse the text
$text = $this->_parse ('[/size]');
// get the size from the argument
$size = (isset ($args['size'])) ? $size : '';
// look if the size is correct
switch ( $size )
{
// xsmall
case 'xsmall':
$size = '7px';
break;
// small
case 'small':
$size = '9px';
break;
// medium
case 'medium':
$size = '12px';
break;
// large
case 'large':
$size = '18px';
break;
// xlarge
case 'xlarge':
$size = '22px';
break;
default:
return $text;
}
// return the span-ed text
return '<span style="size: ' . $size . ';">' . $text . '</span>';
}
/**
* show lists
*
* @param array $args
* @return string
**/
function _parse_bb_list ($args)
{
// add an entry to our array
$this->_in_tag['list']++;
// parse 'till /list
$text = $this->_parse ('[/list]', array ('li', 'li_short'));
// remove this entry from the array
$this->_in_tag['list']--;
// check if we can find a type, either from the argument type, or list='type'
$type = (isset ($args['list'])) ? $args['list'] : '';
// if there was no correct type
if (empty ($type) || $type == 'ul')
{
// we just return it unordered
return '<ul>' . $text . '</ul>';
}
// otherwise, we return ordered
return '<ol type="' . $type . '">' . $text . '</ol>';
}
/**
* show a list item ([*])
*
* @param array $args
* @return string
**/
function _parse_bb_li_short ($args)
{
// parse untill a linebreak
$text = $this->_parse ("[linebreak\0]");
// check if we're inside a list
return ($this->_in_tag['list']) ? '<li>' . $text . '</li>' : $text;
}
/**
* show a normal list item
*
* @param array $args
* @return string
**/
function _parse_bb_li ($args)
{
// thesame as the previous tag, but now 'till the normal ender
$text = $this->_parse ('[/li]');
return ($this->_in_tag['list']) ? '<li>' . $text . '</li>' : $text;
}
/**
* show a table
*
* @param array $args
* @return string
**/
function _parse_bb_table ($args)
{
// cellpadding
$padding = (isset ($args['padding']) && is_numeric ($args['padding']))
? $args['padding']
: 1;
// cellspacing
$spacing = (isset ($args['spacing']) && is_numeric ($args['spacing']))
? $args['spacing']
: 1;
// border
$border = (isset ($args['border']) && is_numeric ($args['border']))
? $args['border']
: 1;
// add an entry to our array
$this->_in_tag['table']++;
// parse 'till /list
$text = $this->_parse ('[/table]', array ('tr'));
// remove this entry from the array
$this->_in_tag['table']--;
// return a correct piece
return sprintf ('<table cellpadding="%s" cellspacing="%s" border="%s">%s</table>',
$padding, $spacing, $border, $text);
}
/**
* show a new table row
*
* @param array $args
* @return string
**/
function _parse_bb_tr ($args)
{
$this->_in_tag['tr']++;
// parse untill a linebreak
$text = $this->_parse ('[/tr]', array ('td'));
$this->_in_tag['tr']--;
// check if we're inside a list
return ($this->_in_tag['table']) ? '<tr>' . $text . '</tr>' : $text;
}
/**
* show a td
*
* @param array $args
* @return string
**/
function _parse_bb_td ($args)
{
// parse untill a linebreak
$text = $this->_parse ('[/td]');
// check if we're inside a list
return ($this->_in_tag['tr']) ? '<td>' . $text . '</td>' : $text;
}
/**
* show a line
*
* @param array $args
* @return string
**/
function _parse_bb_line ($args)
{
// a normal tag, simple line
return '<hr />';
}
/**
* show a url
*
* @param array $args
* @return string
**/
function _parse_bb_url ($args)
{
// 2 regexes to validate
$regex = array (
// links with: ftp http or https
'~^(?:https?|ftp|irc)://[-a-z0-9+&@#/%?=\~_|!:,.;]*[-a-z0-9+&@#/%=\~_|]$~i',
// url's that begin with www. or something like that
'~^[-a-z0-9+&@#/%?=\~_|!:,.;]+[-a-z0-9+&@#/%=\~_|]$~i'
);
// check if it was set there
if (!isset ($args['url']))
{
// if so, disable ubb_mode
$this->_bb_mode = false;
}
// parse until /url
$text = $this->_parse ('[/url]');
// activate bb_mode no matter what
$this->_bb_mode = true;
// check the url with the argument and the given text
$url = (isset ($args['url']))
? $args['url']
: (
(!empty ($text))
? $text
: false
);
// if no input was given
if ($url === false)
{
// return '' (text is also empty;))
return '';
}
// check the url with 2 regex, first with www, second without
$url = (preg_match ($regex[0], $url))
? $url
: (
(preg_match ($regex[1], $url))
? 'http://' . $url
: false
);
$text = (empty ($text)) ? $url : $text;
return ($url !== false)
? sprintf ('<a href="%s">%s</a>', $url, $text)
: $text;
}
/**
* show bold text
*
* @param array $args
* @return string
**/
function _parse_bb_email ($args)
{
$regex = '/^(?:[-a-z_][-a-z0-9._]*@[-a-z0-9_]+(?:\.[-a-z0-9_]+)+)$/si';
// check if it was set there
if (!isset ($args['email']))
{
// if so, disable ubb_mode
$this->_bb_mode = false;
}
// parse until /url
$text = $this->_parse ('[/email]');
// activate bb_mode no matter what
$this->_bb_mode = true;
// check the url with the argument and the given text
$email = (isset ($args['email']))
? $args['email']
: (
(!empty ($text))
? $text
: false
);
// if no input was given
if ($email === false)
{
// return '' (text is also empty;))
return '';
}
// check the email with the regex
$email = (preg_match ($regex, $email)) ? $email : false;
$text = (empty ($text)) ? $email : $text;
return ($email !== false)
? sprintf ('<a href="mailto:%s">%s</a>', $email, $text)
: $text;
}
/**
* show an image
*
* @param array $args
* @return string
**/
function _parse_bb_img ($args)
{
// drop out of bb_mode
$this->_bb_mode = false;
// get the url
$img = (isset ($args['img']))
? $args['img']
: $this->_parse ('[/img]');
$known_img_ext = array( 'jpg',
'gif',
'jpeg',
'png'
);
// we only want img with ext. wich are in the $known_img_ext array so we get the ext. and check if the ext. is allowed
$ext = substr (strrchr ($img, "."), 1);
// go back into bb_mode
$this->_bb_mode = true;
if( in_array ($ext, $known_img_ext) AND !ereg('\?', $img) AND !ereg('\&', $img) ) { // if ext. is allowed
// get some basic arguments
$width = (isset ($args['width'])) ? $args['width'] : 0;
$height = (isset ($args['height'])) ? $args['height'] : 0;
$alt = (isset ($args['alt'])) ? $args['alt'] : '';
// create the return statement
$return = '<img src="' . $img . '"';
$return .= ($width) ? ' width="' . $width . '"' : '';
$return .= ($height) ? ' height="' . $height . '"' : '';
$return .= ($alt) ? ' alt="' . $alt . '"' : '';
$return .= ' />';
}
else {
$return = "<div style='border: 1px solid red; background-color: #D3D3D3;'><div style='border: 1px solid red; border-bottom: 2px solid red; background-color: #FF8040; padding-left: 5px; padding-right: 5px; text-color: red; font-weight: bold;'>IMG ERROR:</div><div style='padding: 5px;'>";
if( ereg('\&', $img) )
$return .= "Sorry, er mag geen & teken in de bestandsnaam voorkomen!<br />";
if( ereg('\?', $img) )
$return .= "Sorry, er mag geen ? teken in de bestandsnaam voorkomen!<br />";
if( !in_array($ext, $known_img_ext) )
$return .= "Sorry, deze extentie (".$ext.") is niet toegestaan!<br />";
$return .= "</div></div>";
}
// and return
return $return;
}
/**
* show a quote
*
* @param array $args
* @return string
**/
function _parse_bb_quote ($args)
{
// set up arguments
$args = array (
'QUOTE_BY' => (isset ($args['quote']) && !empty ($args['quote']))
? $args['quote']
: 'Quote',
'QUOTE_TEXT' => trim (preg_replace (
'/(^\[linebreak\0]|\[linebreak\0]$)/',
'',
$this->_parse ('[/quote]')
), "\r\n")
);
// return
return $this->parse_bb_tpl ('quote', $args);
}
/**
* show a code block
* code may be highlighted with languages like
* PHP, JAVA(script), CSS etc.
*
* @param array args
* @return string
* @see highlighter
**/
function _parse_bb_code ($args)
{
// drop out of bb_mode
$this->_bb_mode = false;
// this will parse from till the closer
$code = $this->_parse ('');
// go back in bb_mode
$this->_bb_mode = true;
// take further action to have correct code
$code = trim (str_replace ("[linebreak\0]", "\n", $code), "\r\n");
// check for a starting position
$start = (isset ($args['s']) && $args['s'] > 0) ? $args['s'] : 1;
// count the newlines
$size = substr_count ($code, "\n");
// update the size
$size += $start;
// should we highlight?
if (!(isset ($args['highlight']) && $args['highlight'] == 'no'))
{
// default language is php, but can be different
$language = (isset ($args['lang'])) ? $args['lang'] : 'php';
// decode html entities
$code = html_entity_decode ($code);
// start the highlight object.. this does all the work
$h = &new highlighter ($language, $code);
// get the highlighted code
$code = $h->get_code ();
}
// if we should't highlight
else
{
$language = 'Geen highlighting';
// do some basic stuff
$code = str_replace ("\t", ' ', $code);
$code = str_replace (' ', ' ', $code);
$code = nl2br ($code);
}
// create lines
$lines = '';
// loop
for ($i = $start; $i <= $size; $i++)
{
$lines .= $i . '<br />';
}
// take away last <br />
$lines = substr ($lines, 0, -6);
// argument assignment
$args = array (
'CODE_NAME' => (isset ($args['file']))
? ' (<i>' . $args['file'] . '</i>)'
: '',
'CODE_LANGUAGE' => $language,
'CODE_ID' => 'field_' . $this->_curr_id++,
'CODE_LEFT_WIDTH' => 14 + ((strlen ($size) - 1) * 8),
'CODE_LINES' => $lines,
'CODE_CONTENT' => $code,
);
// return parsed text
return $this->parse_bb_tpl ('code', $args);
}
/**
* show a block without parsing
*
* @param array $args
* @return string
**/
function _parse_bb_ignore ($args)
{
// drop out of bb_mode
$this->_bb_mode = false;
// parse until /ignore
$text = $this->_parse ('[/ignore]');
// go back into bb_mode
$this->_bb_mode = true;
// and simply return
return $text;
}
/**#@-*/
}
/**
* Highlighting class, supporting multiple
* languages in the form of language files,
* using regexes to match keywords etc.
*
* @author JeXuS
* @package TP
**/
class highlighter
{
/**#@+
* @access private
**/
/**
* holds the language data
*
* @var array _data
**/
var $_data = array ();
/**
* holds the highlighted text
*
* @var string _highlighted
**/
var $_highlighted = '';
/**
* holds the inserted code
*
* @var string _code
**/
var $_code = '';
/**
* holds the style used for highlighting
*
* @var string _span
**/
var $_span = '<span style="%s">%s</span>';
/**#@-*/
/**#@+
* @access public
**/
/**
* The constructor, this makes sure the language
* file is included, and then begins the highlighting
* process.
*
* @param string $language
* @param string $code
* @return boolean
**/
function highlighter ($language, $code)
{
// the current directory
$this_dir = str_replace ('\\', '/', dirname (__FILE__));
// we prefer unix newlines
$code = str_replace (array ("\r\n", "\r"), "\n", $code);
// erase beginning and ending newlines
$code = trim ($code, "\n");
// check if the given language is an existing
// language file
if (!is_file ($language))
{
// if not, remove all non-alpanumeric character
$language = preg_replace ('~[^A-Za-z0-9]+~', '', $language);
// and convert it to lowercase
$language = strtolower ($language);
// take the directory we're in from the __FILE__ constant, and
// append the filename we want
$filename = "{$this_dir}/languages/{$language}.lang.php";
// if the file doesn't exist...
if (!is_file ($filename))
{
$this->_highlighted = nl2br (htmlspecialchars ($code));
return true;
}
// if the file does exist
else
{
// include it
include $filename;
}
}
// if the language is an existing file
else
{
// include it
include $language;
}
// if the language data isn't set
if (!isset ($language_data))
{
$this->_highlighted = nl2br (htmlspecialchars ($code));
return true;
}
// set the language data to our member
$this->_data = $language_data;
// prepare all language regexes
$this->_prepare_language ();
// put the code in our member
$this->_code = $code;
// memory saving
$code = '';
// walk through the code
$this->_walk_through ();
// cleanup and finish the code
$this->_finish_code ();
// and return true
return true;
}
/**
* return parsed code
*
* @return string
**/
function get_code ()
{
return $this->_highlighted;
}
/**#@-*/
/**#@+
* @access private
**/
/**
* prepare language regexes
*
* @return boolean
**/
function _prepare_language ()
{
// the things we need to go through
$correct = array (
'script_delim', 'comments', 'strings',
'regexes', 'symbols', 'keywords'
);
// check if oo_splitters should be done
if (isset ($this->_data['oo_splitters']) && count ($this->_data['oo_splitters']) > 0)
{
$this->_data['is_oo_lang'] = true;
$correct[] = 'oo_splitters';
}
// loop through the parts
foreach ($correct as $part)
{
// check if we've an array to loop, or just one thing
if (isset ($this->_data[$part][0]) && !is_array ($this->_data[$part][0]))
{
// make it a regular regex, always starting at the beginning
$this->_data[$part][0] = '~^' . str_replace ('~', '\~', $this->_data[$part][0]) . '~';
// try the dotall bit
$this->_data[$part][0] .= ($this->_data[$part][1] & QBB_DOTALL) ? 's' : '';
// and the caseless bit
$this->_data[$part][0] .= ($this->_data[$part][1] & QBB_CASELESS) ? 'i' : '';
// still make it an array
$this->_data[$part] = array ($this->_data[$part][0]);
}
// if it's an array
else
{
// loop through
foreach ($this->_data[$part] as $i => $piece)
{
// make it a regular regex, always starting at the beginning
$this->_data[$part][$i][0] = '~^' . str_replace ('~', '\~', $this->_data[$part][$i][0]) . '~';
// try the dotall bit
$this->_data[$part][$i][0] .= ($this->_data[$part][$i][1] & QBB_DOTALL) ? 's' : '';
// and the caseless bit
$this->_data[$part][$i][0] .= ($this->_data[$part][$i][1] & QBB_CASELESS) ? 'i' : '';
// change it
$this->_data[$part][$i] = $this->_data[$part][$i][0];
}
}
}
return true;
}
/**
* cleanup and finish code
*
* @return boolean
**/
function _finish_code ()
{
// if it's empty
if (empty ($this->_highlighted))
{
// return false
return false;
}
// loop as long as the regex is valid
while (preg_match ('~(<span[^>]+>)([^<]+)</span>(\s*)\1~', $this->_highlighted, $match))
{
// concat all span's with thesame color next to it
$this->_highlighted = str_replace ($match[0], $match[1] . $match[2] . $match[3],
$this->_highlighted
);
}
// replace tabs with four 's, and double spaces with 2 's
$this->_highlighted = str_replace (array ("\t", ' '), array (' ', ' '), $this->_highlighted);
// graphical fix
$this->_highlighted = str_replace ("\n ", "\n ", $this->_highlighted);
// nl2br, losing the \n
$this->_highlighted = str_replace ("\n", '<br />', $this->_highlighted);
// and return
return true;
}
/**
* checking if there's a valid match
*
* @param integer &$i
* @param array $parts
* @return boolean
**/
function _check_for_match (&$i, $parts)
{
// the text to check
$check_text = substr ($this->_code, $i);
// loop through the parts given
foreach ($parts as $part)
{
// go through the regexes
foreach ($this->_data[$part] as $j => $regex)
{
// try to match
if (preg_match ($regex, $check_text, $match))
{
// if it's a match with a keyword, and there's a links availabe...
if ($part == 'keywords' && !empty ($this->_data['links'][$j]))
{
// create a valid link
$link = sprintf ($this->_data['links'][$j], urlencode ($match[0]));
// attach an underline style
$style = $this->_data['styles'][$part][$j] . ' text-decoration: underline;';
// the piece will be only a link, no span
$piece = '<a href="' . $link . '" style="' . $style . '" target="blank">' . htmlspecialchars ($match[0]) . '</a>';
}
// if it's a regular piece
else
{
// just a normal sprintf
$piece = sprintf (
$this->_span,
$this->_data['styles'][$part][$j],
htmlspecialchars ($match[0])
);
}
// append the piece
$this->_highlighted .= $piece;
// update &$i
$i += strlen ($match[0]) - 1;
// return true
return true;
}
}
}
// return false
return false;
}
/**
* walk through the code, searching
* for all kinds of things, comments,
* strings, keywords etc.
*
* @return boolean
**/
function _walk_through ()
{
// fixed length
$length = strlen ($this->_code);
// we're not in highlighting
$in_highlighting = false;
// should we check for delimiters
$check_delim = true;
// if the delimiters array is empty
if (count ($this->_data['script_delim']) == 0)
{
// we always highlight
$in_highlighting = true;
// we don't check on delimiters
$check_delim = false;
// prepend the default color now
$this->_highlighted .= '<span style="' . $this->_data['styles']['overall'] . '">';
}
// loop through
for ($i = 0; $i < $length; $i++)
{
// take a big chunk of remaining code
$text = substr ($this->_code, $i);
// take the first character
$first = substr ($text, 0, 1);
// previous character
$prev = substr ($this->_code, $i - 1, 1);
// check if the first character is a space
if (ctype_space ($first))
{
// if so, append it
$this->_highlighted .= $first;
// and continue
continue;
}
/** note: the above increases speed a LOT **/
// should we check for delimiters...
if ($check_delim === true && $in_highlighting === false)
{
// if we match a delimiter
if (preg_match ($this->_data['script_delim']['start'], $text, $match))
{
// append it to the source
$this->_highlighted .= '<span style="' . $this->_data['styles']['overall'] . '">';
// we're in highlighting
$in_highlighting = true;
// we need to start here again with highlighting
$i--;
// free ourselves from the loop
continue;
}
// append the first character
$this->_highlighted .= htmlspecialchars ($first);
// and continue
continue;
}
// check if in highlighting
if ($in_highlighting === true)
{
// check this last
if ($check_delim === true)
{
// try to match an ending delimiter
if (preg_match ($this->_data['script_delim']['end'], $text, $match))
{
// if matched, append it to the current code
$this->_highlighted .= htmlspecialchars ($match[0]) . '</span>';
// we've skipped out of highlighting
$in_highlighting = false;
// update counter
$i += strlen ($match[0]) - 1;
// go to the beginning of the loop
continue;
}
}
// in which parts should we look?
$find = array ('comments', 'strings', 'regexes');
// simple check if we MAY match keywords
if (!ctype_alpha ($prev) && $prev != '_')
{
// if correct, add it
$find[] = 'keywords';
}
// check for a match, give $i by reference
if ($this->_check_for_match ($i, $find))
{
// if matched, continue
continue;
}
// if we've got a `punct` character
if (ctype_punct ($first))
{
// check if this is an OO lang
if (isset ($this->_data['is_oo_lang']))
{
// if so, try to match a object splitter
if (preg_match ($this->_data['oo_splitters'][0], $text, $match))
{
// if matched, append this piece
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['oo_splitters'][0],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
// new piece, not very long
$text = substr ($this->_code, $i, 100);
// try to match a method/child
if (preg_match ('~^[a-z*(_][a-z0-9_*]*~i', $text, $match))
{
// if matched, append it
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['oo_methods'][0],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
}
// continue in both cases
continue;
}
}
// loop through all symbols
foreach ($this->_data['symbols'] as $j => $regex)
{
// if we find a valid match
if (preg_match ($regex, $text, $match))
{
// if match, append |* starts to get boring
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['symbols'][$j],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
// jump out of this loop, and continue the outer
continue 2;
}
}
}
// simple check
if (!ctype_alnum ($prev))
{
// try to match an integer/float
if (preg_match ('~^(?:0x[0-9A-Fa-f]+|[0-9]+(?:\.[0-9]+)?)~', $text, $match))
{
// if matched, append
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['numbers'],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
// continue
continue;
}
}
}
// append this character
$this->_highlighted .= htmlspecialchars (substr ($this->_code, $i, 1));
}
// if we're still in highlighting
if ($in_highlighting === true)
{
// append a closing span
$this->_highlighted .= '</span>';
}
// return
return true;
}
/**#@-*/
}
// ** EOF **
?>
/**
* Text Parsing functions
* This class parses bbcode in a given text to html,
* but not in the way you'd expect. It creates an array
* in which all possible tags and text is stored, and
* it loops through, searching for correct tags, and
* attaches them to a new-built string. This way is
* much faster and more reliable than usual preg/ereg
* based parsers, and has taken quite a while;)
* It also includes the highlighthing class for the
* <b>Quality Bulletin Board</b>. It is very flexible,
* and works with language files, which are on
* their turn based on regular expressions.
* This makes it all very flexible, and easy to edit.
*
* @author JeXuS <[email protected]>
* @package TP
* @filesource
* @version 0.95b
* @date 12-02-2006
**/
// full error reporting
error_reporting (E_ALL);
/**
* This constant means that a regular expression
* does not need any modifiers.
*
* @name QBB_NONE
**/
define ('QBB_NONE', 0);
/**
* This constant means that a regular expression
* needs the '.' to match newlines too.
*
* @name QBB_DOTALL
**/
define ('QBB_DOTALL', 1);
/**
* This constant means that a regular expression
* has to match without case-sensitivity.
*
* @name QBB_CASELESS
**/
define ('QBB_CASELESS', 2);
/**
* Parse text to bbcode using stacks
*
* @author JeXuS <[email protected]>
* @copyright (c) 2005-2005 JeXuS.net
* @package TP
*
* @todo add smiley support
* @todo check if XSS protection is secure
**/
class bbcode
{
/**#@+
* @access protected
*/
/**
* Contains parsed text
*
* @var array _parsed
**/
var $_parsed = array ();
/**
* Contains aliases
*
* @var array _alias
**/
var $_alias = array (
'*' => 'li_short',
'hr' => 'line'
);
/**
* Parse tags?
*
* @var boolean _bb_mode
**/
var $_bb_mode = true;
/**
* Holds bbcode templates
*
* @var array _tpls
**/
var $_tpls = array ();
/**
* Regexes that'll be used
*
* @var array _regexes
**/
var $_regexes = array ();
/**
* All other simple replacement
*
* @var array _replaces
**/
var $_replaces = array ();
/**
* Check if we're inside tags
*
* Are we parsing inside a tag that's special?
* extra care taken, because tags
* may be nested
*
* @var array _in_tag
**/
var $_in_tag = array (
'list' => 0,
'table' => 0,
'tr' => 0
);
/**
* ID for div's
*
* @var integer _curr_id
**/
var $_curr_id = 1;
/**#@-*/
/**#@+
* @access public
**/
/**
* BBcode parsing constructor
*
* Sets up templates, autolinking etc.
*
* @param string [$tpl_file]
* @return boolean
**/
function bbcode ($tpl_file = './bbcode_tpl.htm')
{
// get the data from the tpl file
$data = file_get_contents ($tpl_file);
$data = str_replace ('\\', '\\\\', $data);
$data = str_replace ("'", "\'", $data);
// replace all bb parts with a PHP piece which will insert it
// into the tpl array
$data = preg_replace (
'/<!-- BEGIN BB ([^\s]+) -->(.*?)<!-- END BB \1 -->/si',
"\$this->_tpls['\\1'] = trim ('\\2');",
$data
);
// evaluate
eval ($data);
// some action for the replacement of email links etc.
$this->_regexes = array (
'find' => array (
// emails
'~(\s|^)([-a-z_][-a-z0-9._]*@[-a-z0-9_]+(?:\.[-a-z0-9_]+)+)\b~si',
// links with http, https, ftp or even irc
'~(\s|^)((?:https?|ftp|irc)://[-a-z0-9+&@#/%?=\~_|!:,.;]*[-a-z0-9+&@#/%=\~_|])\b~si',
// links with www.
'~(\s|^)((?:[a-z][-a-z0-9+&@#/%?=\~_|!:,.;]+)\.(?:[a-z]{2,6}))\b~si'
),
'replace' => array (
'\1<a href="mailto:\2">\2</a>',
'\1<a href="\2">\2</a>',
'\1<a href="http://\2">\2</a>',
)
);
// this can handle anything like smilies.
$this->_replace = array (
'find' => array (),
'replace' => array ()
);
// and return
return true;
}
/**
* Call this to return a parsed text
*
* @param string $text
* @return string
**/
function parse ($text)
{
// remove beginning and ending whitespaces
$text = trim ($text);
// replace all newlines with a linebreak tag (for later use)
$text = str_replace (array ("\r\n", "\r", "\n"), "[linebreak\0]", $text);
// cut the text in pieces so we can easily loop
$this->_create_array (htmlspecialchars ($text));
// parse the stack
$text = $this->_parse ();
// replace the linebreak tags with normal newlines
$return = str_replace ("[linebreak\0]", "<br />\n", $text);
// and return
return $return;
}
/**#@-*/
/**#@+
* @access protected
**/
/**
* Parse a template with given variables
*
* @param string $part
* @param array $args
* @return string
**/
function parse_bb_tpl ($part, $args)
{
// just a replace, with evaluation...
return preg_replace (
'/{([^}\s]+)}/e',
"isset (\$args['\\1']) ? \$args['\\1'] : '';",
$this->_tpls[$part]
);
}
/**
* Cut the text in pieces
*
* @param string $text
* @return boolean
**/
function _create_array ($text)
{
// empty the _parsed array
$this->_parsed = array ();
// loop as long as the text has content
while (strlen ($text) > 0)
{
// the first found bracket
$bracket = strpos ($text, '[');
// the second bracket
$second_bracket = strpos ($text, '[', $bracket + 1);
// and the first closer
$close = strpos ($text, ']');
// if there isnt a bracket or closer
if ($bracket === false || $close === false)
{
// the rest is just normal text
$this->_parsed[] = $text;
// return
return true;
}
// loop as long as the [ and ] aren't right
while ($close < $bracket || $second_bracket < $close)
{
// look if the second bracket comes before the closer
if ($second_bracket < $close)
{
// if so, $bracket gets the value of $second_bracket
$bracket = $second_bracket;
// the second bracket gets a new position
$second_bracket = strpos ($text, '[', $bracket + 1);
// if that wasn't matched right
if (!$second_bracket)
{
// the second bracket will be matched after the closer
$second_bracket = $close + 1;
}
}
// if the closer comes before the [
if ($close < $bracket)
{
// update the closer
$close = strpos ($text, ']', $close + 1);
}
}
// if the [ and ] seem to be correct
if ($bracket < $close && $close < $second_bracket)
{
// the text before the tag
$pre = substr ($text, 0, $bracket);
// if this is empty
if (strlen ($pre) > 0)
{
// add this to the _parsed
$this->_parsed[] = $pre;
// memory saving
$pre = '';
}
// put the text in _parsed
$this->_parsed[] = substr ($text, $bracket, $close - $bracket + 1);
// $text has to be updated
$text = substr ($text, $close + 1);
}
}
// return
return true;
}
/**
* Parse the text (already cut in pieces)
*
* @param array [$stoppers]
* @param array [$allow]
* @return string
**/
function _parse ($stoppers = array (), $allow = array ())
{
// if the stack is empty
if (!$this->_parsed)
{
// return nothing
return '';
}
// nested level and return text ''
$level = 0;
$text = '';
// simple check so we can easily check
if (!is_array ($stoppers))
{
$stoppers = array ($stoppers);
}
// for even levels with bb_mode off
$stoppers_leveled = array ();
// check for active bb_mode
if (!$this->_bb_mode)
{
// if it isn't active, we put all the stoppers in an array
// so we can check for the correct level
for ($i = 0, $size = count ($stoppers); $i < $size; $i++)
{
// use the tagname function
$stoppers_leveled[$this->_find_tagname ($stoppers[$i], false, true)] = true;
}
}
// flip the stoppers so we can use isset
$stoppers = array_flip ($stoppers);
$allow = array_flip ($allow);
// loop the pieces
while ($piece = array_shift ($this->_parsed))
{
// if it is a stopper
if (isset ($stoppers[$piece]))
{
// check for zero-level or bb_mode active
if (($level == 0 && !$this->_bb_mode) || $this->_bb_mode)
{
// if correct, return
return $text;
}
// otherwise...
else
{
// attach this piece
$text .= $piece;
// and lower the level
$level--;
}
}
// if it isn't a stopper
else
{
// check if we can find a tagname first
$name = $this->_find_tagname ($piece);
$name = ($name !== false && isset ($this->_alias[$name]))
? $this->_alias[$name]
: $name;
$allowed = (isset ($allow[$name]) || !$allow) ? true : false;
// if it was a valid tag, and the correct method exists
if ($name !== false
&& method_exists (&$this, '_parse_bb_' . $name)
&& $allowed === true)
{
// check if bb_mode is active
if ($this->_bb_mode)
{
// if so, find the complete tag without []
$args = $this->_find_tagname ($piece, true);
// parse the arguments
$args = $this->_parse_bb_arguments ($args);
// the correct method
$function = '_parse_bb_' . $name;
// append the parsed text to the text
$text .= $this->$function ($args);
}
// if bb_mode is unactive
else
{
// check if this is a stopper
if (isset ($stoppers_leveled[$name]))
{
// if so, update the level
$level++;
}
// and append
$text .= $piece;
}
}
// if it wasn't a tag
else
{
// check if we're in a disallowed zone
if (!$allow)
{
// if bb_mode is active
if ($this->_bb_mode)
{
// use the regexes to form a nicer text
$piece = preg_replace (
$this->_regexes['find'],
$this->_regexes['replace'],
$piece
);
$piece = str_replace (
$this->_replace['find'],
$this->_replace['replace'],
$piece
);
}
// just a normal append
$text .= $piece;
}
}
}
}
// after the loop just return
return $text;
}
/**
* find the name of a tag in a piece of the content
*
* @param string $name
* @param boolean [$complete]
* @param boolean [$closer]
* @return string
**/
function _find_tagname ($name, $complete = false, $closer = false)
{
// check if it could be valid
if (substr ($name, 0, 1) == '[' && substr ($name, -1) == ']')
{
// take off the [ and ]
$name = substr ($name, 1, -1);
// if it matches a /
if (substr ($name, 0, 1) == '/' && $closer !== false)
{
// take the / off too
$name = substr ($name, 1);
}
// if it should be the complete tag
if ($complete !== false)
{
// then return it now
return $name;
}
// otherwise use strtok to match untill ' ' or '='
return strtok ($name, ' =');
}
// if it wasn't valid, return boolean false
return false;
}
/**
* parse argument strings
*
* @param string $total
* @return array
**/
function _parse_bb_arguments ($total)
{
// instantiate for errors
$matches = array ();
// match everything like argument='blablabla bla' or argument=blabla or even arg='bla\'bla\\'bla\\'
preg_match_all (
'/([A-Za-z_]+?)=(?:(\'|")(.*?(?<!\\\\)(?:\\\\\\\\)*)\2|([^\s]+))' .
'(?:\s|$)/s',
$total,
$matches,
PREG_SET_ORDER
);
// put up the arguments array
$args = array ();
// loop through all matches
for ($i = 0, $size = count ($matches); $i < $size; $i++)
{
// check if the quoted value was empty
if (trim ($matches[$i][3]) == '')
{
// if the unquoted value was empty
if (trim ($matches[$i][4]) == '')
{
// the value is ''
$value = '';
}
// if not
else
{
// assign the unquoted value
$value = $matches[$i][4];
}
}
// otherwise
else
{
// assign the quoted value
$value = $matches[$i][3];
}
// erase whitespaces
$value = trim ($value);
// if the value wasn't empty
if ($value != '')
{
// assign this argument to our array
$args[strtolower ($matches[$i][1])] = $value;
}
}
// return the arguments
return $args;
}
/*
* THE PARSING FUNCTIONS BEGIN HERE
* a function should be built like this:
* name: _parse_bb_*tagname*
* 1 argument, $args for the given arguments
* pickup the content with $this->_parse (array ('stoppers1', 'stoppers2'));
* or with $this->_parse ('stopper');
* return.
**/
/**
* show bold text
*
* @param array $args
* @return string
**/
function _parse_bb_b ($args)
{
return '<b>' . $this->_parse ('[/b]') . '</b>';
}
/**
* show italic text
*
* @param array $args
* @return string
**/
function _parse_bb_i ($args)
{
return '<i>' . $this->_parse ('[/i]') . '</i>';
}
/**
* show underlined text
*
* @param array $args
* @return string
**/
function _parse_bb_u ($args)
{
return '<u>' . $this->_parse ('[/u]') . '</u>';
}
/**
* show striken text
*
* @param array $args
* @return string
**/
function _parse_bb_s ($args)
{
return '<s>' . $this->_parse ('[/s]') . '</s>';
}
/**
* show subscript text
*
* @param array $args
* @return string
**/
function _parse_bb_sub ($args)
{
return '<sub>' . $this->_parse ('[/sub]') . '</sub>';
}
/**
* show superscript text
*
* @param array $args
* @return string
**/
function _parse_bb_sup ($args)
{
return '<sup>' . $this->_parse ('[/sup]') . '</sup>';
}
/**
* show colored text
*
* @param array $args
* @return string
**/
function _parse_bb_color ($args)
{
// parse the text
$text = $this->_parse ('[/color]');
// check the color
$color = (isset ($args['color'])) ? $args['color'] : false;
// match it to a simple regex
$color = (preg_match ('/^(?:#(?:[a-f0-9]{3}){1,2}|[a-z]{3,})$/i', $color))
? $color
: false;
// return a span with the correct style if the color was correct
return ($color !== false) ? '<span style="color: ' . $color . ';">' .
$text . '</span>' : $text;
}
/**
* show text with other size
*
* @param array $args
* @return string
**/
function _parse_bb_size ($args)
{
// parse the text
$text = $this->_parse ('[/size]');
// get the size from the argument
$size = (isset ($args['size'])) ? $size : '';
// look if the size is correct
switch ( $size )
{
// xsmall
case 'xsmall':
$size = '7px';
break;
// small
case 'small':
$size = '9px';
break;
// medium
case 'medium':
$size = '12px';
break;
// large
case 'large':
$size = '18px';
break;
// xlarge
case 'xlarge':
$size = '22px';
break;
default:
return $text;
}
// return the span-ed text
return '<span style="size: ' . $size . ';">' . $text . '</span>';
}
/**
* show lists
*
* @param array $args
* @return string
**/
function _parse_bb_list ($args)
{
// add an entry to our array
$this->_in_tag['list']++;
// parse 'till /list
$text = $this->_parse ('[/list]', array ('li', 'li_short'));
// remove this entry from the array
$this->_in_tag['list']--;
// check if we can find a type, either from the argument type, or list='type'
$type = (isset ($args['list'])) ? $args['list'] : '';
// if there was no correct type
if (empty ($type) || $type == 'ul')
{
// we just return it unordered
return '<ul>' . $text . '</ul>';
}
// otherwise, we return ordered
return '<ol type="' . $type . '">' . $text . '</ol>';
}
/**
* show a list item ([*])
*
* @param array $args
* @return string
**/
function _parse_bb_li_short ($args)
{
// parse untill a linebreak
$text = $this->_parse ("[linebreak\0]");
// check if we're inside a list
return ($this->_in_tag['list']) ? '<li>' . $text . '</li>' : $text;
}
/**
* show a normal list item
*
* @param array $args
* @return string
**/
function _parse_bb_li ($args)
{
// thesame as the previous tag, but now 'till the normal ender
$text = $this->_parse ('[/li]');
return ($this->_in_tag['list']) ? '<li>' . $text . '</li>' : $text;
}
/**
* show a table
*
* @param array $args
* @return string
**/
function _parse_bb_table ($args)
{
// cellpadding
$padding = (isset ($args['padding']) && is_numeric ($args['padding']))
? $args['padding']
: 1;
// cellspacing
$spacing = (isset ($args['spacing']) && is_numeric ($args['spacing']))
? $args['spacing']
: 1;
// border
$border = (isset ($args['border']) && is_numeric ($args['border']))
? $args['border']
: 1;
// add an entry to our array
$this->_in_tag['table']++;
// parse 'till /list
$text = $this->_parse ('[/table]', array ('tr'));
// remove this entry from the array
$this->_in_tag['table']--;
// return a correct piece
return sprintf ('<table cellpadding="%s" cellspacing="%s" border="%s">%s</table>',
$padding, $spacing, $border, $text);
}
/**
* show a new table row
*
* @param array $args
* @return string
**/
function _parse_bb_tr ($args)
{
$this->_in_tag['tr']++;
// parse untill a linebreak
$text = $this->_parse ('[/tr]', array ('td'));
$this->_in_tag['tr']--;
// check if we're inside a list
return ($this->_in_tag['table']) ? '<tr>' . $text . '</tr>' : $text;
}
/**
* show a td
*
* @param array $args
* @return string
**/
function _parse_bb_td ($args)
{
// parse untill a linebreak
$text = $this->_parse ('[/td]');
// check if we're inside a list
return ($this->_in_tag['tr']) ? '<td>' . $text . '</td>' : $text;
}
/**
* show a line
*
* @param array $args
* @return string
**/
function _parse_bb_line ($args)
{
// a normal tag, simple line
return '<hr />';
}
/**
* show a url
*
* @param array $args
* @return string
**/
function _parse_bb_url ($args)
{
// 2 regexes to validate
$regex = array (
// links with: ftp http or https
'~^(?:https?|ftp|irc)://[-a-z0-9+&@#/%?=\~_|!:,.;]*[-a-z0-9+&@#/%=\~_|]$~i',
// url's that begin with www. or something like that
'~^[-a-z0-9+&@#/%?=\~_|!:,.;]+[-a-z0-9+&@#/%=\~_|]$~i'
);
// check if it was set there
if (!isset ($args['url']))
{
// if so, disable ubb_mode
$this->_bb_mode = false;
}
// parse until /url
$text = $this->_parse ('[/url]');
// activate bb_mode no matter what
$this->_bb_mode = true;
// check the url with the argument and the given text
$url = (isset ($args['url']))
? $args['url']
: (
(!empty ($text))
? $text
: false
);
// if no input was given
if ($url === false)
{
// return '' (text is also empty;))
return '';
}
// check the url with 2 regex, first with www, second without
$url = (preg_match ($regex[0], $url))
? $url
: (
(preg_match ($regex[1], $url))
? 'http://' . $url
: false
);
$text = (empty ($text)) ? $url : $text;
return ($url !== false)
? sprintf ('<a href="%s">%s</a>', $url, $text)
: $text;
}
/**
* show bold text
*
* @param array $args
* @return string
**/
function _parse_bb_email ($args)
{
$regex = '/^(?:[-a-z_][-a-z0-9._]*@[-a-z0-9_]+(?:\.[-a-z0-9_]+)+)$/si';
// check if it was set there
if (!isset ($args['email']))
{
// if so, disable ubb_mode
$this->_bb_mode = false;
}
// parse until /url
$text = $this->_parse ('[/email]');
// activate bb_mode no matter what
$this->_bb_mode = true;
// check the url with the argument and the given text
$email = (isset ($args['email']))
? $args['email']
: (
(!empty ($text))
? $text
: false
);
// if no input was given
if ($email === false)
{
// return '' (text is also empty;))
return '';
}
// check the email with the regex
$email = (preg_match ($regex, $email)) ? $email : false;
$text = (empty ($text)) ? $email : $text;
return ($email !== false)
? sprintf ('<a href="mailto:%s">%s</a>', $email, $text)
: $text;
}
/**
* show an image
*
* @param array $args
* @return string
**/
function _parse_bb_img ($args)
{
// drop out of bb_mode
$this->_bb_mode = false;
// get the url
$img = (isset ($args['img']))
? $args['img']
: $this->_parse ('[/img]');
$known_img_ext = array( 'jpg',
'gif',
'jpeg',
'png'
);
// we only want img with ext. wich are in the $known_img_ext array so we get the ext. and check if the ext. is allowed
$ext = substr (strrchr ($img, "."), 1);
// go back into bb_mode
$this->_bb_mode = true;
if( in_array ($ext, $known_img_ext) AND !ereg('\?', $img) AND !ereg('\&', $img) ) { // if ext. is allowed
// get some basic arguments
$width = (isset ($args['width'])) ? $args['width'] : 0;
$height = (isset ($args['height'])) ? $args['height'] : 0;
$alt = (isset ($args['alt'])) ? $args['alt'] : '';
// create the return statement
$return = '<img src="' . $img . '"';
$return .= ($width) ? ' width="' . $width . '"' : '';
$return .= ($height) ? ' height="' . $height . '"' : '';
$return .= ($alt) ? ' alt="' . $alt . '"' : '';
$return .= ' />';
}
else {
$return = "<div style='border: 1px solid red; background-color: #D3D3D3;'><div style='border: 1px solid red; border-bottom: 2px solid red; background-color: #FF8040; padding-left: 5px; padding-right: 5px; text-color: red; font-weight: bold;'>IMG ERROR:</div><div style='padding: 5px;'>";
if( ereg('\&', $img) )
$return .= "Sorry, er mag geen & teken in de bestandsnaam voorkomen!<br />";
if( ereg('\?', $img) )
$return .= "Sorry, er mag geen ? teken in de bestandsnaam voorkomen!<br />";
if( !in_array($ext, $known_img_ext) )
$return .= "Sorry, deze extentie (".$ext.") is niet toegestaan!<br />";
$return .= "</div></div>";
}
// and return
return $return;
}
/**
* show a quote
*
* @param array $args
* @return string
**/
function _parse_bb_quote ($args)
{
// set up arguments
$args = array (
'QUOTE_BY' => (isset ($args['quote']) && !empty ($args['quote']))
? $args['quote']
: 'Quote',
'QUOTE_TEXT' => trim (preg_replace (
'/(^\[linebreak\0]|\[linebreak\0]$)/',
'',
$this->_parse ('[/quote]')
), "\r\n")
);
// return
return $this->parse_bb_tpl ('quote', $args);
}
/**
* show a code block
* code may be highlighted with languages like
* PHP, JAVA(script), CSS etc.
*
* @param array args
* @return string
* @see highlighter
**/
function _parse_bb_code ($args)
{
// drop out of bb_mode
$this->_bb_mode = false;
// this will parse from till the closer
$code = $this->_parse ('');
// go back in bb_mode
$this->_bb_mode = true;
// take further action to have correct code
$code = trim (str_replace ("[linebreak\0]", "\n", $code), "\r\n");
// check for a starting position
$start = (isset ($args['s']) && $args['s'] > 0) ? $args['s'] : 1;
// count the newlines
$size = substr_count ($code, "\n");
// update the size
$size += $start;
// should we highlight?
if (!(isset ($args['highlight']) && $args['highlight'] == 'no'))
{
// default language is php, but can be different
$language = (isset ($args['lang'])) ? $args['lang'] : 'php';
// decode html entities
$code = html_entity_decode ($code);
// start the highlight object.. this does all the work
$h = &new highlighter ($language, $code);
// get the highlighted code
$code = $h->get_code ();
}
// if we should't highlight
else
{
$language = 'Geen highlighting';
// do some basic stuff
$code = str_replace ("\t", ' ', $code);
$code = str_replace (' ', ' ', $code);
$code = nl2br ($code);
}
// create lines
$lines = '';
// loop
for ($i = $start; $i <= $size; $i++)
{
$lines .= $i . '<br />';
}
// take away last <br />
$lines = substr ($lines, 0, -6);
// argument assignment
$args = array (
'CODE_NAME' => (isset ($args['file']))
? ' (<i>' . $args['file'] . '</i>)'
: '',
'CODE_LANGUAGE' => $language,
'CODE_ID' => 'field_' . $this->_curr_id++,
'CODE_LEFT_WIDTH' => 14 + ((strlen ($size) - 1) * 8),
'CODE_LINES' => $lines,
'CODE_CONTENT' => $code,
);
// return parsed text
return $this->parse_bb_tpl ('code', $args);
}
/**
* show a block without parsing
*
* @param array $args
* @return string
**/
function _parse_bb_ignore ($args)
{
// drop out of bb_mode
$this->_bb_mode = false;
// parse until /ignore
$text = $this->_parse ('[/ignore]');
// go back into bb_mode
$this->_bb_mode = true;
// and simply return
return $text;
}
/**#@-*/
}
/**
* Highlighting class, supporting multiple
* languages in the form of language files,
* using regexes to match keywords etc.
*
* @author JeXuS
* @package TP
**/
class highlighter
{
/**#@+
* @access private
**/
/**
* holds the language data
*
* @var array _data
**/
var $_data = array ();
/**
* holds the highlighted text
*
* @var string _highlighted
**/
var $_highlighted = '';
/**
* holds the inserted code
*
* @var string _code
**/
var $_code = '';
/**
* holds the style used for highlighting
*
* @var string _span
**/
var $_span = '<span style="%s">%s</span>';
/**#@-*/
/**#@+
* @access public
**/
/**
* The constructor, this makes sure the language
* file is included, and then begins the highlighting
* process.
*
* @param string $language
* @param string $code
* @return boolean
**/
function highlighter ($language, $code)
{
// the current directory
$this_dir = str_replace ('\\', '/', dirname (__FILE__));
// we prefer unix newlines
$code = str_replace (array ("\r\n", "\r"), "\n", $code);
// erase beginning and ending newlines
$code = trim ($code, "\n");
// check if the given language is an existing
// language file
if (!is_file ($language))
{
// if not, remove all non-alpanumeric character
$language = preg_replace ('~[^A-Za-z0-9]+~', '', $language);
// and convert it to lowercase
$language = strtolower ($language);
// take the directory we're in from the __FILE__ constant, and
// append the filename we want
$filename = "{$this_dir}/languages/{$language}.lang.php";
// if the file doesn't exist...
if (!is_file ($filename))
{
$this->_highlighted = nl2br (htmlspecialchars ($code));
return true;
}
// if the file does exist
else
{
// include it
include $filename;
}
}
// if the language is an existing file
else
{
// include it
include $language;
}
// if the language data isn't set
if (!isset ($language_data))
{
$this->_highlighted = nl2br (htmlspecialchars ($code));
return true;
}
// set the language data to our member
$this->_data = $language_data;
// prepare all language regexes
$this->_prepare_language ();
// put the code in our member
$this->_code = $code;
// memory saving
$code = '';
// walk through the code
$this->_walk_through ();
// cleanup and finish the code
$this->_finish_code ();
// and return true
return true;
}
/**
* return parsed code
*
* @return string
**/
function get_code ()
{
return $this->_highlighted;
}
/**#@-*/
/**#@+
* @access private
**/
/**
* prepare language regexes
*
* @return boolean
**/
function _prepare_language ()
{
// the things we need to go through
$correct = array (
'script_delim', 'comments', 'strings',
'regexes', 'symbols', 'keywords'
);
// check if oo_splitters should be done
if (isset ($this->_data['oo_splitters']) && count ($this->_data['oo_splitters']) > 0)
{
$this->_data['is_oo_lang'] = true;
$correct[] = 'oo_splitters';
}
// loop through the parts
foreach ($correct as $part)
{
// check if we've an array to loop, or just one thing
if (isset ($this->_data[$part][0]) && !is_array ($this->_data[$part][0]))
{
// make it a regular regex, always starting at the beginning
$this->_data[$part][0] = '~^' . str_replace ('~', '\~', $this->_data[$part][0]) . '~';
// try the dotall bit
$this->_data[$part][0] .= ($this->_data[$part][1] & QBB_DOTALL) ? 's' : '';
// and the caseless bit
$this->_data[$part][0] .= ($this->_data[$part][1] & QBB_CASELESS) ? 'i' : '';
// still make it an array
$this->_data[$part] = array ($this->_data[$part][0]);
}
// if it's an array
else
{
// loop through
foreach ($this->_data[$part] as $i => $piece)
{
// make it a regular regex, always starting at the beginning
$this->_data[$part][$i][0] = '~^' . str_replace ('~', '\~', $this->_data[$part][$i][0]) . '~';
// try the dotall bit
$this->_data[$part][$i][0] .= ($this->_data[$part][$i][1] & QBB_DOTALL) ? 's' : '';
// and the caseless bit
$this->_data[$part][$i][0] .= ($this->_data[$part][$i][1] & QBB_CASELESS) ? 'i' : '';
// change it
$this->_data[$part][$i] = $this->_data[$part][$i][0];
}
}
}
return true;
}
/**
* cleanup and finish code
*
* @return boolean
**/
function _finish_code ()
{
// if it's empty
if (empty ($this->_highlighted))
{
// return false
return false;
}
// loop as long as the regex is valid
while (preg_match ('~(<span[^>]+>)([^<]+)</span>(\s*)\1~', $this->_highlighted, $match))
{
// concat all span's with thesame color next to it
$this->_highlighted = str_replace ($match[0], $match[1] . $match[2] . $match[3],
$this->_highlighted
);
}
// replace tabs with four 's, and double spaces with 2 's
$this->_highlighted = str_replace (array ("\t", ' '), array (' ', ' '), $this->_highlighted);
// graphical fix
$this->_highlighted = str_replace ("\n ", "\n ", $this->_highlighted);
// nl2br, losing the \n
$this->_highlighted = str_replace ("\n", '<br />', $this->_highlighted);
// and return
return true;
}
/**
* checking if there's a valid match
*
* @param integer &$i
* @param array $parts
* @return boolean
**/
function _check_for_match (&$i, $parts)
{
// the text to check
$check_text = substr ($this->_code, $i);
// loop through the parts given
foreach ($parts as $part)
{
// go through the regexes
foreach ($this->_data[$part] as $j => $regex)
{
// try to match
if (preg_match ($regex, $check_text, $match))
{
// if it's a match with a keyword, and there's a links availabe...
if ($part == 'keywords' && !empty ($this->_data['links'][$j]))
{
// create a valid link
$link = sprintf ($this->_data['links'][$j], urlencode ($match[0]));
// attach an underline style
$style = $this->_data['styles'][$part][$j] . ' text-decoration: underline;';
// the piece will be only a link, no span
$piece = '<a href="' . $link . '" style="' . $style . '" target="blank">' . htmlspecialchars ($match[0]) . '</a>';
}
// if it's a regular piece
else
{
// just a normal sprintf
$piece = sprintf (
$this->_span,
$this->_data['styles'][$part][$j],
htmlspecialchars ($match[0])
);
}
// append the piece
$this->_highlighted .= $piece;
// update &$i
$i += strlen ($match[0]) - 1;
// return true
return true;
}
}
}
// return false
return false;
}
/**
* walk through the code, searching
* for all kinds of things, comments,
* strings, keywords etc.
*
* @return boolean
**/
function _walk_through ()
{
// fixed length
$length = strlen ($this->_code);
// we're not in highlighting
$in_highlighting = false;
// should we check for delimiters
$check_delim = true;
// if the delimiters array is empty
if (count ($this->_data['script_delim']) == 0)
{
// we always highlight
$in_highlighting = true;
// we don't check on delimiters
$check_delim = false;
// prepend the default color now
$this->_highlighted .= '<span style="' . $this->_data['styles']['overall'] . '">';
}
// loop through
for ($i = 0; $i < $length; $i++)
{
// take a big chunk of remaining code
$text = substr ($this->_code, $i);
// take the first character
$first = substr ($text, 0, 1);
// previous character
$prev = substr ($this->_code, $i - 1, 1);
// check if the first character is a space
if (ctype_space ($first))
{
// if so, append it
$this->_highlighted .= $first;
// and continue
continue;
}
/** note: the above increases speed a LOT **/
// should we check for delimiters...
if ($check_delim === true && $in_highlighting === false)
{
// if we match a delimiter
if (preg_match ($this->_data['script_delim']['start'], $text, $match))
{
// append it to the source
$this->_highlighted .= '<span style="' . $this->_data['styles']['overall'] . '">';
// we're in highlighting
$in_highlighting = true;
// we need to start here again with highlighting
$i--;
// free ourselves from the loop
continue;
}
// append the first character
$this->_highlighted .= htmlspecialchars ($first);
// and continue
continue;
}
// check if in highlighting
if ($in_highlighting === true)
{
// check this last
if ($check_delim === true)
{
// try to match an ending delimiter
if (preg_match ($this->_data['script_delim']['end'], $text, $match))
{
// if matched, append it to the current code
$this->_highlighted .= htmlspecialchars ($match[0]) . '</span>';
// we've skipped out of highlighting
$in_highlighting = false;
// update counter
$i += strlen ($match[0]) - 1;
// go to the beginning of the loop
continue;
}
}
// in which parts should we look?
$find = array ('comments', 'strings', 'regexes');
// simple check if we MAY match keywords
if (!ctype_alpha ($prev) && $prev != '_')
{
// if correct, add it
$find[] = 'keywords';
}
// check for a match, give $i by reference
if ($this->_check_for_match ($i, $find))
{
// if matched, continue
continue;
}
// if we've got a `punct` character
if (ctype_punct ($first))
{
// check if this is an OO lang
if (isset ($this->_data['is_oo_lang']))
{
// if so, try to match a object splitter
if (preg_match ($this->_data['oo_splitters'][0], $text, $match))
{
// if matched, append this piece
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['oo_splitters'][0],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
// new piece, not very long
$text = substr ($this->_code, $i, 100);
// try to match a method/child
if (preg_match ('~^[a-z*(_][a-z0-9_*]*~i', $text, $match))
{
// if matched, append it
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['oo_methods'][0],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
}
// continue in both cases
continue;
}
}
// loop through all symbols
foreach ($this->_data['symbols'] as $j => $regex)
{
// if we find a valid match
if (preg_match ($regex, $text, $match))
{
// if match, append |* starts to get boring
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['symbols'][$j],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
// jump out of this loop, and continue the outer
continue 2;
}
}
}
// simple check
if (!ctype_alnum ($prev))
{
// try to match an integer/float
if (preg_match ('~^(?:0x[0-9A-Fa-f]+|[0-9]+(?:\.[0-9]+)?)~', $text, $match))
{
// if matched, append
$this->_highlighted .= sprintf (
$this->_span,
$this->_data['styles']['numbers'],
htmlspecialchars ($match[0])
);
// update $i
$i += strlen ($match[0]) - 1;
// continue
continue;
}
}
}
// append this character
$this->_highlighted .= htmlspecialchars (substr ($this->_code, $i, 1));
}
// if we're still in highlighting
if ($in_highlighting === true)
{
// append a closing span
$this->_highlighted .= '</span>';
}
// return
return true;
}
/**#@-*/
}
// ** EOF **
?>
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Mooie script alleen bij mij gaat die foutmelding geven in : text_parser.class.php
als ik dit gebruik om te testen :
als ik dit gebruik om te testen :
Code (php)
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<?php
require_once 'text_parser.class.php'; // includen
$bb = &new bbcode; // bbcode_tpl.htm is de standaard
$text = <<<EOT
[code lang='php']
<?php
echo 'test';
?>
[/ code]
EOT;
echo $bb->parse ($text);
?>
edit : heb het gemaakt :) !
require_once 'text_parser.class.php'; // includen
$bb = &new bbcode; // bbcode_tpl.htm is de standaard
$text = <<<EOT
[code lang='php']
<?php
echo 'test';
?>
[/ code]
EOT;
echo $bb->parse ($text);
?>
edit : heb het gemaakt :) !
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ik heb een probeel met dit script,
als ik php code ermee parse dan vertaalt php de variablen alsnog,
hierdoor wordt mijn code niet goed weer gegeven,
ik heb niks what so ever aangepast aan het bestand:
$var is dus een variable, die dus geparsed word en undefined errors eruit gooien..
ik hoop dat de foto het duidelijk maakt,
dit is de code die ik gebruik, ik heb verschillende opzetten geprobeerd:
de code tags staan om de php tags alleen die worden door de script op deze site eruit gefilterd...
ik dacht, laat ik even vragen voordat ik door 1500 regels code ga ploeteren!
als ik php code ermee parse dan vertaalt php de variablen alsnog,
hierdoor wordt mijn code niet goed weer gegeven,
ik heb niks what so ever aangepast aan het bestand:
$var is dus een variable, die dus geparsed word en undefined errors eruit gooien..
ik hoop dat de foto het duidelijk maakt,
dit is de code die ik gebruik, ik heb verschillende opzetten geprobeerd:
Code (php)
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<?php
$text = <<<EOT
[b]Deze text is bold[/b].
[url='http://www.jexus.net']JeXuS[/url]
[quote='JeXuS']
Dit werd door JeXuS geschreven:
[quote=n00b]
En dit door een n00b
[/quote]
[/quote]
<?php
echo 'dit is een test';
$var = 'my var';
while($var != 'myvar') {
echo 'my var is not my var!';
}
?>
EOT;
echo $bb->parse($text);
?>
$text = <<<EOT
[b]Deze text is bold[/b].
[url='http://www.jexus.net']JeXuS[/url]
[quote='JeXuS']
Dit werd door JeXuS geschreven:
[quote=n00b]
En dit door een n00b
[/quote]
[/quote]
<?php
echo 'dit is een test';
$var = 'my var';
while($var != 'myvar') {
echo 'my var is not my var!';
}
?>
EOT;
echo $bb->parse($text);
?>
de code tags staan om de php tags alleen die worden door de script op deze site eruit gefilterd...
ik dacht, laat ik even vragen voordat ik door 1500 regels code ga ploeteren!
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Er zit een klein probleempje in, als een quote= argument een spatie bevat, word alleen het eerste woord weergegeven, de rest word domweg uit de tekst weggelaten.
Ik ben er nog niet helemaal uit hoe dit op te lossen, aangezien ik de code nog niet helemaal goed heb nagelopen.
Ik ben er nog niet helemaal uit hoe dit op te lossen, aangezien ik de code nog niet helemaal goed heb nagelopen.
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Ondanks het feit dat ik dit hier bijna 2 jaar geleden heb neergezet, daar nog even een reactie op. :-)
Als je een parameter aan een tag wil meegeven waar spaties in voorkomen, ben je genoodzaakt om quotes er omheen te zetten. Het is wel te veranderen, maar ik onderhoud dit script niet meer, dus ik ga het zelf niet doen. Alles wat je moet doen bevindt zich in de _parse_bb_arguments methode.
Op http://www.liefcoden.nl/ubb/ kun je de voortgang van m'n laatste parser volgen. ;)
Als je een parameter aan een tag wil meegeven waar spaties in voorkomen, ben je genoodzaakt om quotes er omheen te zetten. Het is wel te veranderen, maar ik onderhoud dit script niet meer, dus ik ga het zelf niet doen. Alles wat je moet doen bevindt zich in de _parse_bb_arguments methode.
Op http://www.liefcoden.nl/ubb/ kun je de voortgang van m'n laatste parser volgen. ;)
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Tja, sorry dat't zo lang heeft geduurd ;)
Ik heb nou eenmaal nu pas echt nut voor je script, ik heb jaren gewerkt met m'n eigen code, maar deze begon zoveel tekortkomingen te vertonen, dat ik maar ben begonnen met overschakelen naar jou script.
De quotes er omheen werken dus niet ;) anders had ik het wel voor elkaar gekregen, maar dat gaat blijkbaar ergens mis.
Nou ja, ik werk er wel aan, heb toch nog zat te doen, aangezien jou code ook nog eens een globalizing vereist (waarom eigenlijk?)
Ik heb nou eenmaal nu pas echt nut voor je script, ik heb jaren gewerkt met m'n eigen code, maar deze begon zoveel tekortkomingen te vertonen, dat ik maar ben begonnen met overschakelen naar jou script.
De quotes er omheen werken dus niet ;) anders had ik het wel voor elkaar gekregen, maar dat gaat blijkbaar ergens mis.
Nou ja, ik werk er wel aan, heb toch nog zat te doen, aangezien jou code ook nog eens een globalizing vereist (waarom eigenlijk?)
Om te reageren heb je een account nodig en je moet ingelogd zijn.
PHP hulp
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