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cakephp2-php8/libs/flay.php
phpnut 3500ca272c more cleanup for API docs to be generated without errors 
git-svn-id: https://svn.cakephp.org/repo/trunk/cake@322 3807eeeb-6ff5-0310-8944-8be069107fe0
2005-07-04 02:59:39 +00:00

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<?php
//////////////////////////////////////////////////////////////////////////
// + $Id$
// +------------------------------------------------------------------+ //
// + Cake PHP : Rapid Development Framework <http://www.cakephp.org/> + //
// + Copyright: (c) 2005, CakePHP Authors/Developers + //
// + Author(s): Michal Tatarynowicz aka Pies <tatarynowicz@gmail.com> + //
// + Larry E. Masters aka PhpNut <nut@phpnut.com> + //
// + Kamil Dzielinski aka Brego <brego.dk@gmail.com> + //
// +------------------------------------------------------------------+ //
// + Licensed under The MIT License + //
// + Redistributions of files must retain the above copyright notice. + //
// + See: http://www.opensource.org/licenses/mit-license.php + //
//////////////////////////////////////////////////////////////////////////
/**
* Purpose: Flay
* Text-to-html parser, similar to Textile or RedCloth, only with somehow different syntax.
*
* @filesource
* @author CakePHP Authors/Developers
* @copyright Copyright (c) 2005, CakePHP Authors/Developers
* @link https://trac.cakephp.org/wiki/Authors Authors/Developers
* @package cake
* @subpackage cake.libs
* @since CakePHP v 0.2.9
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Enter description here...
*/
uses('object');
/**
* Text-to-html parser, similar to Textile or RedCloth, only with a little different syntax.
*
* @package cake
* @subpackage cake.libs
* @since CakePHP v 0.2.9
*/
class Flay extends Object
{
/**
* Enter description here...
*
* @var string
*/
var $text = null;
/**
* Enter description here...
*
* @var boolean
*/
var $allow_html = false;
/**
* Constructor.
*
* @param unknown_type $text
*/
function __construct ($text=null) {
$this->text = $text;
parent::__construct();
}
/**
* Returns $text translated to HTML using the Flay syntax.
*
* @param string $text Text to format
* @param boolean $bare
* @param boolean $allowHtml Set this to trim whitespace and disable all HTML
* @return string Formatted text
*/
function toHtml ($text=null, $bare=false, $allowHtml=false) {
if (empty($text) && empty($this->text))
return false;
$text = $text? $text: $this->text;
// trim whitespace and disable all HTML
if ($allowHtml)
$text = trim($text);
else
$text = str_replace('<', '&lt;', str_replace('>', '&gt;', trim($text)));
if (!$bare) {
// multi-paragraph functions
$text = preg_replace('#(?:[\n]{0,2})"""(.*)"""(?:[\n]{0,2})#s', "\n\n%BLOCKQUOTE%\n\n\\1\n\n%ENDBLOCKQUOTE%\n\n", $text);
$text = preg_replace('#(?:[\n]{0,2})===(.*)===(?:[\n]{0,2})#s', "\n\n%CENTER%\n\n\\1\n\n%ENDCENTER%\n\n", $text);
}
// pre-parse newlines
$text = preg_replace("#\r\n#", "\n", $text);
$text = preg_replace("#[\n]{2,}#", "%PARAGRAPH%", $text);
$text = preg_replace('#[\n]{1}#', "%LINEBREAK%", $text);
// split into paragraphs and parse
$out = '';
foreach (split('%PARAGRAPH%', $text) as $line) {
if ($line) {
if (!$bare) {
// pre-parse links
$links = array();
$regs = null;
if (preg_match_all('#\[([^\[]{4,})\]#', $line, $regs)) {
foreach ($regs[1] as $reg) {
$links[] = $reg;
$line = str_replace("[{$reg}]",'%LINK'.(count($links)-1).'%', $line);
}
}
// MAIN TEXT FUNCTIONS
// bold
$line = ereg_replace("\*([^\*]*)\*", "<strong>\\1</strong>", $line);
// italic
$line = ereg_replace("_([^_]*)_", "<em>\\1</em>", $line);
}
// entities
$line = str_replace(' - ', ' &ndash; ', $line);
$line = str_replace(' -- ', ' &mdash; ', $line);
$line = str_replace('(C)', '&copy;', $line);
$line = str_replace('(R)', '&reg;', $line);
$line = str_replace('(TM)', '&trade;', $line);
// guess e-mails
$emails = null;
if (preg_match_all("#([_A-Za-z0-9+-+]+(?:\.[_A-Za-z0-9+-]+)*@[A-Za-z0-9-]+(?:\.[A-Za-z0-9-]+)*)#", $line, $emails)) {
foreach ($emails[1] as $email) {
$line = str_replace($email, "<a href=\"mailto:{$email}\">{$email}</a>", $line);
}
}
if (!$bare) {
// guess links
$urls = null;
if (preg_match_all("#((?:http|https|ftp|nntp)://[^ ]+)#", $line, $urls))
{
foreach ($urls[1] as $url)
{
$line = str_replace($url, "<a href=\"{$url}\">{$url}</a>", $line);
}
}
if (preg_match_all("#(www\.[^\n\%\ ]+[^\n\%\,\.\ ])#", $line, $urls))
{
foreach ($urls[1] as $url)
{
$line = str_replace($url, "<a href=\"http://{$url}\">{$url}</a>", $line);
}
}
// re-parse links
if (count($links)) {
for ($ii=0; $ii<count($links); $ii++) {
if (preg_match("#^(http|https|ftp|nntp)://#", $links[$ii]))
{
$prefix = null;
}
else
{
$prefix = 'http://';
}
if (preg_match('#^[^\ ]+\.(jpg|jpeg|gif|png)$#', $links[$ii]))
{
$with = "<img src=\"{$prefix}{$links[$ii]}\" alt=\"\" />";
}
elseif (preg_match('#^([^\]\ ]+)(?:\ ([^\]]+))?$#', $links[$ii], $regs))
{
if (isset($regs[2]))
{
if (preg_match('#\.(jpg|jpeg|gif|png)$#', $regs[2]))
$body = "<img src=\"{$prefix}{$regs[2]}\" alt=\"\" />";
else
$body = $regs[2];
}
else
{
$body = $links[$ii];
}
$with = "<a href=\"{$prefix}{$regs[1]}\" target=\"_blank\">{$body}</a>";
}
else
{
$with = $prefix.$links[$ii];
}
$line = str_replace("%LINK{$ii}%", $with, $line);
}
}
}
// re-parse newlines
$out .= str_replace('%LINEBREAK%', "<br />\n", "<p>{$line}</p>\n");
}
}
if (!$bare) {
// re-parse multilines
$out = str_replace('<p>%BLOCKQUOTE%</p>', "<blockquote>", $out);
$out = str_replace('<p>%ENDBLOCKQUOTE%</p>', "</blockquote>", $out);
$out = str_replace('<p>%CENTER%</p>', "<center>", $out);
$out = str_replace('<p>%ENDCENTER%</p>', "</center>", $out);
}
return $out;
}
/**
* Enter description here...
*
* @param unknown_type $string
* @return unknown
*/
function extractWords ($string) {
return preg_split('/[\s,\.:\/="!\(\)<>~\[\]]+/', $string);
}
/**
* Enter description here...
*
* @param unknown_type $words
* @param unknown_type $string
* @param unknown_type $max_snippets
* @return unknown
*/
function markedSnippets ($words, $string, $max_snippets=5) {
$string = strip_tags($string);
$snips = array();
$rest = $string;
foreach ($words as $word) {
if (preg_match_all("/[\s,]+.{0,40}{$word}.{0,40}[\s,]+/i", $rest, $r)) {
foreach ($r as $result)
$rest = str_replace($result, '', $rest);
$snips = array_merge($snips, $r[0]);
}
}
if (count($snips) > $max_snippets) $snips = array_slice($snips, 0, $max_snippets);
$joined = join(' <b>...</b> ', $snips);
$snips = $joined? "<b>...</b> {$joined} <b>...</b>": substr($string, 0, 80).'<b>...</b>';
return Flay::colorMark($words, $snips);
}
/**
* Enter description here...
*
* @param unknown_type $words
* @param unknown_type $string
* @return unknown
*/
function colorMark($words, $string)
{
$colors = array('yl','gr','rd','bl','fu','cy');
$nextColorIndex = 0;
foreach ($words as $word)
{
$string = preg_replace("/({$word})/i", '<em class="'.$colors[$nextColorIndex%count($colors)]."\">\\1</em>", $string);
$nextColorIndex++;
}
return $string;
}
/**
* Enter description here...
*
* @param unknown_type $text
* @return unknown
*/
function toClean ($text)
{
return strip_tags(html_entity_decode($text, ENT_QUOTES));
}
function toParsedAndClean ($text)
{
return Flay::toClean(Flay::toHtml($text));
}
/**
* Enter description here...
*
* @param unknown_type $text
* @param unknown_type $length
* @param unknown_type $elipsis
* @return unknown
*/
function fragment ($text, $length, $elipsis='...') {
$soft=$length-5;
$hard=$length+5;
$rx = '/(.{'.$soft.','.$hard.'})[\s,\.:\/="!\(\)<>~\[\]]+.*/';
if (preg_match($rx, $text, $r)) {
$out = $r[1];
}
else {
$out = substr($text,0,$length);
}
$out = $out.(strlen($out)<strlen($text)? $elipsis: null);
return $out;
}
}
?>
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