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@@ -0,0 +1,1990 @@
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+<?php
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+
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+#
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+#
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+# Parsedown
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+# http://parsedown.org
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+#
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+# (c) Emanuil Rusev
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+# http://erusev.com
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+#
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+# For the full license information, view the LICENSE file that was distributed
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+# with this source code.
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+#
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+#
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+
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+class Parsedown
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+{
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+ # ~
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+
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+ const version = '1.8.0-beta-7';
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+
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+ # ~
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+
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+ function text($text)
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+ {
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+ $Elements = $this->textElements($text);
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+
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+ # convert to markup
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+ $markup = $this->elements($Elements);
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+
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+ # trim line breaks
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+ $markup = trim($markup, "\n");
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+
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+ return $markup;
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+ }
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+
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+ protected function textElements($text)
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+ {
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+ # make sure no definitions are set
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+ $this->DefinitionData = array();
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+
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+ # standardize line breaks
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+ $text = str_replace(array("\r\n", "\r"), "\n", $text);
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+
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+ # remove surrounding line breaks
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+ $text = trim($text, "\n");
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+
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+ # split text into lines
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+ $lines = explode("\n", $text);
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+
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+ # iterate through lines to identify blocks
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+ return $this->linesElements($lines);
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+ }
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+
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+ #
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+ # Setters
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+ #
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+
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+ function setBreaksEnabled($breaksEnabled)
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+ {
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+ $this->breaksEnabled = $breaksEnabled;
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+
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+ return $this;
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+ }
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+
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+ protected $breaksEnabled;
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+
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+ function setMarkupEscaped($markupEscaped)
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+ {
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+ $this->markupEscaped = $markupEscaped;
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+
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+ return $this;
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+ }
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+
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+ protected $markupEscaped;
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+
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+ function setUrlsLinked($urlsLinked)
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+ {
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+ $this->urlsLinked = $urlsLinked;
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+
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+ return $this;
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+ }
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+
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+ protected $urlsLinked = true;
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+
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+ function setSafeMode($safeMode)
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+ {
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+ $this->safeMode = (bool) $safeMode;
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+
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+ return $this;
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+ }
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+
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+ protected $safeMode;
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+
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+ function setStrictMode($strictMode)
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+ {
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+ $this->strictMode = (bool) $strictMode;
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+
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+ return $this;
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+ }
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+
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+ protected $strictMode;
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+
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+ protected $safeLinksWhitelist = array(
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+ 'http://',
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+ 'https://',
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+ 'ftp://',
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+ 'ftps://',
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+ 'mailto:',
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+ 'data:image/png;base64,',
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+ 'data:image/gif;base64,',
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+ 'data:image/jpeg;base64,',
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+ 'irc:',
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+ 'ircs:',
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+ 'git:',
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+ 'ssh:',
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+ 'news:',
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+ 'steam:',
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+ );
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+
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+ #
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+ # Lines
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+ #
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+
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+ protected $BlockTypes = array(
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+ '#' => array('Header'),
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+ '*' => array('Rule', 'List'),
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+ '+' => array('List'),
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+ '-' => array('SetextHeader', 'Table', 'Rule', 'List'),
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+ '0' => array('List'),
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+ '1' => array('List'),
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+ '2' => array('List'),
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+ '3' => array('List'),
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+ '4' => array('List'),
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+ '5' => array('List'),
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+ '6' => array('List'),
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+ '7' => array('List'),
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+ '8' => array('List'),
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+ '9' => array('List'),
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+ ':' => array('Table'),
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+ '<' => array('Comment', 'Markup'),
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+ '=' => array('SetextHeader'),
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+ '>' => array('Quote'),
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+ '[' => array('Reference'),
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+ '_' => array('Rule'),
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+ '`' => array('FencedCode'),
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+ '|' => array('Table'),
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+ '~' => array('FencedCode'),
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+ );
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+
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+ # ~
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+
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+ protected $unmarkedBlockTypes = array(
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+ 'Code',
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+ );
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+
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+ #
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+ # Blocks
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+ #
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+
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+ protected function lines(array $lines)
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+ {
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+ return $this->elements($this->linesElements($lines));
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+ }
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+
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+ protected function linesElements(array $lines)
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+ {
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+ $Elements = array();
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+ $CurrentBlock = null;
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+
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+ foreach ($lines as $line)
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+ {
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+ if (chop($line) === '')
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+ {
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+ if (isset($CurrentBlock))
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+ {
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+ $CurrentBlock['interrupted'] = (isset($CurrentBlock['interrupted'])
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+ ? $CurrentBlock['interrupted'] + 1 : 1
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+ );
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+ }
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+
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+ continue;
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+ }
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+
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+ while (($beforeTab = strstr($line, "\t", true)) !== false)
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+ {
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+ $shortage = 4 - mb_strlen($beforeTab, 'utf-8') % 4;
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+
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+ $line = $beforeTab
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+ . str_repeat(' ', $shortage)
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+ . substr($line, strlen($beforeTab) + 1)
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+ ;
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+ }
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+
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+ $indent = strspn($line, ' ');
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+
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+ $text = $indent > 0 ? substr($line, $indent) : $line;
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+
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+ # ~
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+
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+ $Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
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+
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+ # ~
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+
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+ if (isset($CurrentBlock['continuable']))
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+ {
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+ $methodName = 'block' . $CurrentBlock['type'] . 'Continue';
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+ $Block = $this->$methodName($Line, $CurrentBlock);
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+
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+ if (isset($Block))
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+ {
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+ $CurrentBlock = $Block;
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+
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+ continue;
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+ }
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+ else
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+ {
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+ if ($this->isBlockCompletable($CurrentBlock['type']))
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+ {
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+ $methodName = 'block' . $CurrentBlock['type'] . 'Complete';
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+ $CurrentBlock = $this->$methodName($CurrentBlock);
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+ }
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+ }
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+ }
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+
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+ # ~
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+
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+ $marker = $text[0];
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+
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+ # ~
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+
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+ $blockTypes = $this->unmarkedBlockTypes;
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+
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+ if (isset($this->BlockTypes[$marker]))
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+ {
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+ foreach ($this->BlockTypes[$marker] as $blockType)
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+ {
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+ $blockTypes []= $blockType;
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+ }
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+ }
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+
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+ #
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+ # ~
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+
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+ foreach ($blockTypes as $blockType)
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+ {
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+ $Block = $this->{"block$blockType"}($Line, $CurrentBlock);
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+
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+ if (isset($Block))
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+ {
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+ $Block['type'] = $blockType;
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+
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+ if ( ! isset($Block['identified']))
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+ {
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+ if (isset($CurrentBlock))
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+ {
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+ $Elements[] = $this->extractElement($CurrentBlock);
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+ }
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+
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+ $Block['identified'] = true;
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+ }
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+
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+ if ($this->isBlockContinuable($blockType))
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+ {
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+ $Block['continuable'] = true;
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+ }
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+
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+ $CurrentBlock = $Block;
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+
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+ continue 2;
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+ }
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+ }
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+
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+ # ~
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+
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+ if (isset($CurrentBlock) and $CurrentBlock['type'] === 'Paragraph')
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+ {
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+ $Block = $this->paragraphContinue($Line, $CurrentBlock);
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+ }
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+
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+ if (isset($Block))
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+ {
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+ $CurrentBlock = $Block;
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+ }
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+ else
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+ {
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+ if (isset($CurrentBlock))
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+ {
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+ $Elements[] = $this->extractElement($CurrentBlock);
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+ }
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+
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+ $CurrentBlock = $this->paragraph($Line);
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+
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+ $CurrentBlock['identified'] = true;
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+ }
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+ }
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+
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+ # ~
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+
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+ if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type']))
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+ {
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+ $methodName = 'block' . $CurrentBlock['type'] . 'Complete';
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+ $CurrentBlock = $this->$methodName($CurrentBlock);
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+ }
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+
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+ # ~
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+
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+ if (isset($CurrentBlock))
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+ {
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+ $Elements[] = $this->extractElement($CurrentBlock);
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+ }
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+
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+ # ~
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+
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+ return $Elements;
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+ }
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+
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+ protected function extractElement(array $Component)
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+ {
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+ if ( ! isset($Component['element']))
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+ {
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+ if (isset($Component['markup']))
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+ {
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+ $Component['element'] = array('rawHtml' => $Component['markup']);
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+ }
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+ elseif (isset($Component['hidden']))
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+ {
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+ $Component['element'] = array();
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+ }
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+ }
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+
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+ return $Component['element'];
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+ }
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+
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+ protected function isBlockContinuable($Type)
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+ {
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+ return method_exists($this, 'block' . $Type . 'Continue');
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+ }
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+
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+ protected function isBlockCompletable($Type)
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+ {
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+ return method_exists($this, 'block' . $Type . 'Complete');
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+ }
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+
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+ #
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+ # Code
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+
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+ protected function blockCode($Line, $Block = null)
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+ {
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+ if (isset($Block) and $Block['type'] === 'Paragraph' and ! isset($Block['interrupted']))
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+ {
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+ return;
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+ }
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+
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+ if ($Line['indent'] >= 4)
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+ {
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+ $text = substr($Line['body'], 4);
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+
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+ $Block = array(
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+ 'element' => array(
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+ 'name' => 'pre',
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+ 'element' => array(
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+ 'name' => 'code',
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+ 'text' => $text,
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+ ),
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+ ),
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+ );
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+
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+ return $Block;
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+ }
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+ }
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+
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+ protected function blockCodeContinue($Line, $Block)
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+ {
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+ if ($Line['indent'] >= 4)
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+ {
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+ if (isset($Block['interrupted']))
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+ {
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+ $Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']);
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+
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+ unset($Block['interrupted']);
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+ }
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+
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+ $Block['element']['element']['text'] .= "\n";
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+
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+ $text = substr($Line['body'], 4);
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+
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+ $Block['element']['element']['text'] .= $text;
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+
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+ return $Block;
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+ }
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+ }
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+
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+ protected function blockCodeComplete($Block)
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+ {
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+ return $Block;
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+ }
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+
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+ #
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+ # Comment
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+
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+ protected function blockComment($Line)
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+ {
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+ if ($this->markupEscaped or $this->safeMode)
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+ {
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+ return;
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+ }
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+
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+ if (strpos($Line['text'], '<!--') === 0)
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+ {
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+ $Block = array(
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+ 'element' => array(
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+ 'rawHtml' => $Line['body'],
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+ 'autobreak' => true,
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+ ),
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+ );
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+
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+ if (strpos($Line['text'], '-->') !== false)
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+ {
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+ $Block['closed'] = true;
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+ }
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+
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+ return $Block;
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+ }
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+ }
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+
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+ protected function blockCommentContinue($Line, array $Block)
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+ {
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+ if (isset($Block['closed']))
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+ {
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+ return;
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+ }
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+
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+ $Block['element']['rawHtml'] .= "\n" . $Line['body'];
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+
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+ if (strpos($Line['text'], '-->') !== false)
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+ {
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+ $Block['closed'] = true;
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+ }
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+
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+ return $Block;
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+ }
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+
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+ #
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+ # Fenced Code
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+
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+ protected function blockFencedCode($Line)
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+ {
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+ $marker = $Line['text'][0];
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+
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+ $openerLength = strspn($Line['text'], $marker);
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+
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+ if ($openerLength < 3)
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+ {
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+ return;
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+ }
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+
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+ $infostring = trim(substr($Line['text'], $openerLength), "\t ");
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+
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+ if (strpos($infostring, '`') !== false)
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+ {
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+ return;
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+ }
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+
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+ $Element = array(
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+ 'name' => 'code',
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+ 'text' => '',
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+ );
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+
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+ if ($infostring !== '')
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+ {
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+ /**
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+ * https://www.w3.org/TR/2011/WD-html5-20110525/elements.html#classes
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+ * Every HTML element may have a class attribute specified.
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+ * The attribute, if specified, must have a value that is a set
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+ * of space-separated tokens representing the various classes
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+ * that the element belongs to.
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+ * [...]
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+ * The space characters, for the purposes of this specification,
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+ * are U+0020 SPACE, U+0009 CHARACTER TABULATION (tab),
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+ * U+000A LINE FEED (LF), U+000C FORM FEED (FF), and
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+ * U+000D CARRIAGE RETURN (CR).
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+ */
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+ $language = substr($infostring, 0, strcspn($infostring, " \t\n\f\r"));
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+
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+ $Element['attributes'] = array('class' => "language-$language");
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+ }
|
|
|
+
|
|
|
+ $Block = array(
|
|
|
+ 'char' => $marker,
|
|
|
+ 'openerLength' => $openerLength,
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'pre',
|
|
|
+ 'element' => $Element,
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockFencedCodeContinue($Line, $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['complete']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ $Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']);
|
|
|
+
|
|
|
+ unset($Block['interrupted']);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (($len = strspn($Line['text'], $Block['char'])) >= $Block['openerLength']
|
|
|
+ and chop(substr($Line['text'], $len), ' ') === ''
|
|
|
+ ) {
|
|
|
+ $Block['element']['element']['text'] = substr($Block['element']['element']['text'], 1);
|
|
|
+
|
|
|
+ $Block['complete'] = true;
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Block['element']['element']['text'] .= "\n" . $Line['body'];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockFencedCodeComplete($Block)
|
|
|
+ {
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Header
|
|
|
+
|
|
|
+ protected function blockHeader($Line)
|
|
|
+ {
|
|
|
+ $level = strspn($Line['text'], '#');
|
|
|
+
|
|
|
+ if ($level > 6)
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $text = trim($Line['text'], '#');
|
|
|
+
|
|
|
+ if ($this->strictMode and isset($text[0]) and $text[0] !== ' ')
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $text = trim($text, ' ');
|
|
|
+
|
|
|
+ $Block = array(
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'h' . min(6, $level),
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => $text,
|
|
|
+ 'destination' => 'elements',
|
|
|
+ )
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # List
|
|
|
+
|
|
|
+ protected function blockList($Line, array $CurrentBlock = null)
|
|
|
+ {
|
|
|
+ list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]{1,9}+[.\)]');
|
|
|
+
|
|
|
+ if (preg_match('/^('.$pattern.'([ ]++|$))(.*+)/', $Line['text'], $matches))
|
|
|
+ {
|
|
|
+ $contentIndent = strlen($matches[2]);
|
|
|
+
|
|
|
+ if ($contentIndent >= 5)
|
|
|
+ {
|
|
|
+ $contentIndent -= 1;
|
|
|
+ $matches[1] = substr($matches[1], 0, -$contentIndent);
|
|
|
+ $matches[3] = str_repeat(' ', $contentIndent) . $matches[3];
|
|
|
+ }
|
|
|
+ elseif ($contentIndent === 0)
|
|
|
+ {
|
|
|
+ $matches[1] .= ' ';
|
|
|
+ }
|
|
|
+
|
|
|
+ $markerWithoutWhitespace = strstr($matches[1], ' ', true);
|
|
|
+
|
|
|
+ $Block = array(
|
|
|
+ 'indent' => $Line['indent'],
|
|
|
+ 'pattern' => $pattern,
|
|
|
+ 'data' => array(
|
|
|
+ 'type' => $name,
|
|
|
+ 'marker' => $matches[1],
|
|
|
+ 'markerType' => ($name === 'ul' ? $markerWithoutWhitespace : substr($markerWithoutWhitespace, -1)),
|
|
|
+ ),
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => $name,
|
|
|
+ 'elements' => array(),
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ $Block['data']['markerTypeRegex'] = preg_quote($Block['data']['markerType'], '/');
|
|
|
+
|
|
|
+ if ($name === 'ol')
|
|
|
+ {
|
|
|
+ $listStart = ltrim(strstr($matches[1], $Block['data']['markerType'], true), '0') ?: '0';
|
|
|
+
|
|
|
+ if ($listStart !== '1')
|
|
|
+ {
|
|
|
+ if (
|
|
|
+ isset($CurrentBlock)
|
|
|
+ and $CurrentBlock['type'] === 'Paragraph'
|
|
|
+ and ! isset($CurrentBlock['interrupted'])
|
|
|
+ ) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Block['element']['attributes'] = array('start' => $listStart);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ $Block['li'] = array(
|
|
|
+ 'name' => 'li',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'li',
|
|
|
+ 'argument' => !empty($matches[3]) ? array($matches[3]) : array(),
|
|
|
+ 'destination' => 'elements'
|
|
|
+ )
|
|
|
+ );
|
|
|
+
|
|
|
+ $Block['element']['elements'] []= & $Block['li'];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockListContinue($Line, array $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['interrupted']) and empty($Block['li']['handler']['argument']))
|
|
|
+ {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+
|
|
|
+ $requiredIndent = ($Block['indent'] + strlen($Block['data']['marker']));
|
|
|
+
|
|
|
+ if ($Line['indent'] < $requiredIndent
|
|
|
+ and (
|
|
|
+ (
|
|
|
+ $Block['data']['type'] === 'ol'
|
|
|
+ and preg_match('/^[0-9]++'.$Block['data']['markerTypeRegex'].'(?:[ ]++(.*)|$)/', $Line['text'], $matches)
|
|
|
+ ) or (
|
|
|
+ $Block['data']['type'] === 'ul'
|
|
|
+ and preg_match('/^'.$Block['data']['markerTypeRegex'].'(?:[ ]++(.*)|$)/', $Line['text'], $matches)
|
|
|
+ )
|
|
|
+ )
|
|
|
+ ) {
|
|
|
+ if (isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ $Block['li']['handler']['argument'] []= '';
|
|
|
+
|
|
|
+ $Block['loose'] = true;
|
|
|
+
|
|
|
+ unset($Block['interrupted']);
|
|
|
+ }
|
|
|
+
|
|
|
+ unset($Block['li']);
|
|
|
+
|
|
|
+ $text = isset($matches[1]) ? $matches[1] : '';
|
|
|
+
|
|
|
+ $Block['indent'] = $Line['indent'];
|
|
|
+
|
|
|
+ $Block['li'] = array(
|
|
|
+ 'name' => 'li',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'li',
|
|
|
+ 'argument' => array($text),
|
|
|
+ 'destination' => 'elements'
|
|
|
+ )
|
|
|
+ );
|
|
|
+
|
|
|
+ $Block['element']['elements'] []= & $Block['li'];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ elseif ($Line['indent'] < $requiredIndent and $this->blockList($Line))
|
|
|
+ {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Line['text'][0] === '[' and $this->blockReference($Line))
|
|
|
+ {
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Line['indent'] >= $requiredIndent)
|
|
|
+ {
|
|
|
+ if (isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ $Block['li']['handler']['argument'] []= '';
|
|
|
+
|
|
|
+ $Block['loose'] = true;
|
|
|
+
|
|
|
+ unset($Block['interrupted']);
|
|
|
+ }
|
|
|
+
|
|
|
+ $text = substr($Line['body'], $requiredIndent);
|
|
|
+
|
|
|
+ $Block['li']['handler']['argument'] []= $text;
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ! isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ $text = preg_replace('/^[ ]{0,'.$requiredIndent.'}+/', '', $Line['body']);
|
|
|
+
|
|
|
+ $Block['li']['handler']['argument'] []= $text;
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockListComplete(array $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['loose']))
|
|
|
+ {
|
|
|
+ foreach ($Block['element']['elements'] as &$li)
|
|
|
+ {
|
|
|
+ if (end($li['handler']['argument']) !== '')
|
|
|
+ {
|
|
|
+ $li['handler']['argument'] []= '';
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Quote
|
|
|
+
|
|
|
+ protected function blockQuote($Line)
|
|
|
+ {
|
|
|
+ if (preg_match('/^>[ ]?+(.*+)/', $Line['text'], $matches))
|
|
|
+ {
|
|
|
+ $Block = array(
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'blockquote',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'linesElements',
|
|
|
+ 'argument' => (array) $matches[1],
|
|
|
+ 'destination' => 'elements',
|
|
|
+ )
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockQuoteContinue($Line, array $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Line['text'][0] === '>' and preg_match('/^>[ ]?+(.*+)/', $Line['text'], $matches))
|
|
|
+ {
|
|
|
+ $Block['element']['handler']['argument'] []= $matches[1];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ! isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ $Block['element']['handler']['argument'] []= $Line['text'];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Rule
|
|
|
+
|
|
|
+ protected function blockRule($Line)
|
|
|
+ {
|
|
|
+ $marker = $Line['text'][0];
|
|
|
+
|
|
|
+ if (substr_count($Line['text'], $marker) >= 3 and chop($Line['text'], " $marker") === '')
|
|
|
+ {
|
|
|
+ $Block = array(
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'hr',
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Setext
|
|
|
+
|
|
|
+ protected function blockSetextHeader($Line, array $Block = null)
|
|
|
+ {
|
|
|
+ if ( ! isset($Block) or $Block['type'] !== 'Paragraph' or isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Line['indent'] < 4 and chop(chop($Line['text'], ' '), $Line['text'][0]) === '')
|
|
|
+ {
|
|
|
+ $Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2';
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Markup
|
|
|
+
|
|
|
+ protected function blockMarkup($Line)
|
|
|
+ {
|
|
|
+ if ($this->markupEscaped or $this->safeMode)
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (preg_match('/^<[\/]?+(\w*)(?:[ ]*+'.$this->regexHtmlAttribute.')*+[ ]*+(\/)?>/', $Line['text'], $matches))
|
|
|
+ {
|
|
|
+ $element = strtolower($matches[1]);
|
|
|
+
|
|
|
+ if (in_array($element, $this->textLevelElements))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Block = array(
|
|
|
+ 'name' => $matches[1],
|
|
|
+ 'element' => array(
|
|
|
+ 'rawHtml' => $Line['text'],
|
|
|
+ 'autobreak' => true,
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockMarkupContinue($Line, array $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['closed']) or isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Block['element']['rawHtml'] .= "\n" . $Line['body'];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Reference
|
|
|
+
|
|
|
+ protected function blockReference($Line)
|
|
|
+ {
|
|
|
+ if (strpos($Line['text'], ']') !== false
|
|
|
+ and preg_match('/^\[(.+?)\]:[ ]*+<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*+$/', $Line['text'], $matches)
|
|
|
+ ) {
|
|
|
+ $id = strtolower($matches[1]);
|
|
|
+
|
|
|
+ $Data = array(
|
|
|
+ 'url' => $matches[2],
|
|
|
+ 'title' => isset($matches[3]) ? $matches[3] : null,
|
|
|
+ );
|
|
|
+
|
|
|
+ $this->DefinitionData['Reference'][$id] = $Data;
|
|
|
+
|
|
|
+ $Block = array(
|
|
|
+ 'element' => array(),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Table
|
|
|
+
|
|
|
+ protected function blockTable($Line, array $Block = null)
|
|
|
+ {
|
|
|
+ if ( ! isset($Block) or $Block['type'] !== 'Paragraph' or isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (
|
|
|
+ strpos($Block['element']['handler']['argument'], '|') === false
|
|
|
+ and strpos($Line['text'], '|') === false
|
|
|
+ and strpos($Line['text'], ':') === false
|
|
|
+ or strpos($Block['element']['handler']['argument'], "\n") !== false
|
|
|
+ ) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (chop($Line['text'], ' -:|') !== '')
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $alignments = array();
|
|
|
+
|
|
|
+ $divider = $Line['text'];
|
|
|
+
|
|
|
+ $divider = trim($divider);
|
|
|
+ $divider = trim($divider, '|');
|
|
|
+
|
|
|
+ $dividerCells = explode('|', $divider);
|
|
|
+
|
|
|
+ foreach ($dividerCells as $dividerCell)
|
|
|
+ {
|
|
|
+ $dividerCell = trim($dividerCell);
|
|
|
+
|
|
|
+ if ($dividerCell === '')
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $alignment = null;
|
|
|
+
|
|
|
+ if ($dividerCell[0] === ':')
|
|
|
+ {
|
|
|
+ $alignment = 'left';
|
|
|
+ }
|
|
|
+
|
|
|
+ if (substr($dividerCell, - 1) === ':')
|
|
|
+ {
|
|
|
+ $alignment = $alignment === 'left' ? 'center' : 'right';
|
|
|
+ }
|
|
|
+
|
|
|
+ $alignments []= $alignment;
|
|
|
+ }
|
|
|
+
|
|
|
+ # ~
|
|
|
+
|
|
|
+ $HeaderElements = array();
|
|
|
+
|
|
|
+ $header = $Block['element']['handler']['argument'];
|
|
|
+
|
|
|
+ $header = trim($header);
|
|
|
+ $header = trim($header, '|');
|
|
|
+
|
|
|
+ $headerCells = explode('|', $header);
|
|
|
+
|
|
|
+ if (count($headerCells) !== count($alignments))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ foreach ($headerCells as $index => $headerCell)
|
|
|
+ {
|
|
|
+ $headerCell = trim($headerCell);
|
|
|
+
|
|
|
+ $HeaderElement = array(
|
|
|
+ 'name' => 'th',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => $headerCell,
|
|
|
+ 'destination' => 'elements',
|
|
|
+ )
|
|
|
+ );
|
|
|
+
|
|
|
+ if (isset($alignments[$index]))
|
|
|
+ {
|
|
|
+ $alignment = $alignments[$index];
|
|
|
+
|
|
|
+ $HeaderElement['attributes'] = array(
|
|
|
+ 'style' => "text-align: $alignment;",
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ $HeaderElements []= $HeaderElement;
|
|
|
+ }
|
|
|
+
|
|
|
+ # ~
|
|
|
+
|
|
|
+ $Block = array(
|
|
|
+ 'alignments' => $alignments,
|
|
|
+ 'identified' => true,
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'table',
|
|
|
+ 'elements' => array(),
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ $Block['element']['elements'] []= array(
|
|
|
+ 'name' => 'thead',
|
|
|
+ );
|
|
|
+
|
|
|
+ $Block['element']['elements'] []= array(
|
|
|
+ 'name' => 'tbody',
|
|
|
+ 'elements' => array(),
|
|
|
+ );
|
|
|
+
|
|
|
+ $Block['element']['elements'][0]['elements'] []= array(
|
|
|
+ 'name' => 'tr',
|
|
|
+ 'elements' => $HeaderElements,
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function blockTableContinue($Line, array $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (count($Block['alignments']) === 1 or $Line['text'][0] === '|' or strpos($Line['text'], '|'))
|
|
|
+ {
|
|
|
+ $Elements = array();
|
|
|
+
|
|
|
+ $row = $Line['text'];
|
|
|
+
|
|
|
+ $row = trim($row);
|
|
|
+ $row = trim($row, '|');
|
|
|
+
|
|
|
+ preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]++`|`)++/', $row, $matches);
|
|
|
+
|
|
|
+ $cells = array_slice($matches[0], 0, count($Block['alignments']));
|
|
|
+
|
|
|
+ foreach ($cells as $index => $cell)
|
|
|
+ {
|
|
|
+ $cell = trim($cell);
|
|
|
+
|
|
|
+ $Element = array(
|
|
|
+ 'name' => 'td',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => $cell,
|
|
|
+ 'destination' => 'elements',
|
|
|
+ )
|
|
|
+ );
|
|
|
+
|
|
|
+ if (isset($Block['alignments'][$index]))
|
|
|
+ {
|
|
|
+ $Element['attributes'] = array(
|
|
|
+ 'style' => 'text-align: ' . $Block['alignments'][$index] . ';',
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ $Elements []= $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Element = array(
|
|
|
+ 'name' => 'tr',
|
|
|
+ 'elements' => $Elements,
|
|
|
+ );
|
|
|
+
|
|
|
+ $Block['element']['elements'][1]['elements'] []= $Element;
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # ~
|
|
|
+ #
|
|
|
+
|
|
|
+ protected function paragraph($Line)
|
|
|
+ {
|
|
|
+ return array(
|
|
|
+ 'type' => 'Paragraph',
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'p',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => $Line['text'],
|
|
|
+ 'destination' => 'elements',
|
|
|
+ ),
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function paragraphContinue($Line, array $Block)
|
|
|
+ {
|
|
|
+ if (isset($Block['interrupted']))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Block['element']['handler']['argument'] .= "\n".$Line['text'];
|
|
|
+
|
|
|
+ return $Block;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Inline Elements
|
|
|
+ #
|
|
|
+
|
|
|
+ protected $InlineTypes = array(
|
|
|
+ '!' => array('Image'),
|
|
|
+ '&' => array('SpecialCharacter'),
|
|
|
+ '*' => array('Emphasis'),
|
|
|
+ ':' => array('Url'),
|
|
|
+ '<' => array('UrlTag', 'EmailTag', 'Markup'),
|
|
|
+ '[' => array('Link'),
|
|
|
+ '_' => array('Emphasis'),
|
|
|
+ '`' => array('Code'),
|
|
|
+ '~' => array('Strikethrough'),
|
|
|
+ '\\' => array('EscapeSequence'),
|
|
|
+ );
|
|
|
+
|
|
|
+ # ~
|
|
|
+
|
|
|
+ protected $inlineMarkerList = '!*_&[:<`~\\';
|
|
|
+
|
|
|
+ #
|
|
|
+ # ~
|
|
|
+ #
|
|
|
+
|
|
|
+ public function line($text, $nonNestables = array())
|
|
|
+ {
|
|
|
+ return $this->elements($this->lineElements($text, $nonNestables));
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function lineElements($text, $nonNestables = array())
|
|
|
+ {
|
|
|
+ $Elements = array();
|
|
|
+
|
|
|
+ $nonNestables = (empty($nonNestables)
|
|
|
+ ? array()
|
|
|
+ : array_combine($nonNestables, $nonNestables)
|
|
|
+ );
|
|
|
+
|
|
|
+ # $excerpt is based on the first occurrence of a marker
|
|
|
+
|
|
|
+ while ($excerpt = strpbrk($text, $this->inlineMarkerList))
|
|
|
+ {
|
|
|
+ $marker = $excerpt[0];
|
|
|
+
|
|
|
+ $markerPosition = strlen($text) - strlen($excerpt);
|
|
|
+
|
|
|
+ $Excerpt = array('text' => $excerpt, 'context' => $text);
|
|
|
+
|
|
|
+ foreach ($this->InlineTypes[$marker] as $inlineType)
|
|
|
+ {
|
|
|
+ # check to see if the current inline type is nestable in the current context
|
|
|
+
|
|
|
+ if (isset($nonNestables[$inlineType]))
|
|
|
+ {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Inline = $this->{"inline$inlineType"}($Excerpt);
|
|
|
+
|
|
|
+ if ( ! isset($Inline))
|
|
|
+ {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ # makes sure that the inline belongs to "our" marker
|
|
|
+
|
|
|
+ if (isset($Inline['position']) and $Inline['position'] > $markerPosition)
|
|
|
+ {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ # sets a default inline position
|
|
|
+
|
|
|
+ if ( ! isset($Inline['position']))
|
|
|
+ {
|
|
|
+ $Inline['position'] = $markerPosition;
|
|
|
+ }
|
|
|
+
|
|
|
+ # cause the new element to 'inherit' our non nestables
|
|
|
+
|
|
|
+
|
|
|
+ $Inline['element']['nonNestables'] = isset($Inline['element']['nonNestables'])
|
|
|
+ ? array_merge($Inline['element']['nonNestables'], $nonNestables)
|
|
|
+ : $nonNestables
|
|
|
+ ;
|
|
|
+
|
|
|
+ # the text that comes before the inline
|
|
|
+ $unmarkedText = substr($text, 0, $Inline['position']);
|
|
|
+
|
|
|
+ # compile the unmarked text
|
|
|
+ $InlineText = $this->inlineText($unmarkedText);
|
|
|
+ $Elements[] = $InlineText['element'];
|
|
|
+
|
|
|
+ # compile the inline
|
|
|
+ $Elements[] = $this->extractElement($Inline);
|
|
|
+
|
|
|
+ # remove the examined text
|
|
|
+ $text = substr($text, $Inline['position'] + $Inline['extent']);
|
|
|
+
|
|
|
+ continue 2;
|
|
|
+ }
|
|
|
+
|
|
|
+ # the marker does not belong to an inline
|
|
|
+
|
|
|
+ $unmarkedText = substr($text, 0, $markerPosition + 1);
|
|
|
+
|
|
|
+ $InlineText = $this->inlineText($unmarkedText);
|
|
|
+ $Elements[] = $InlineText['element'];
|
|
|
+
|
|
|
+ $text = substr($text, $markerPosition + 1);
|
|
|
+ }
|
|
|
+
|
|
|
+ $InlineText = $this->inlineText($text);
|
|
|
+ $Elements[] = $InlineText['element'];
|
|
|
+
|
|
|
+ foreach ($Elements as &$Element)
|
|
|
+ {
|
|
|
+ if ( ! isset($Element['autobreak']))
|
|
|
+ {
|
|
|
+ $Element['autobreak'] = false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Elements;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # ~
|
|
|
+ #
|
|
|
+
|
|
|
+ protected function inlineText($text)
|
|
|
+ {
|
|
|
+ $Inline = array(
|
|
|
+ 'extent' => strlen($text),
|
|
|
+ 'element' => array(),
|
|
|
+ );
|
|
|
+
|
|
|
+ $Inline['element']['elements'] = self::pregReplaceElements(
|
|
|
+ $this->breaksEnabled ? '/[ ]*+\n/' : '/(?:[ ]*+\\\\|[ ]{2,}+)\n/',
|
|
|
+ array(
|
|
|
+ array('name' => 'br'),
|
|
|
+ array('text' => "\n"),
|
|
|
+ ),
|
|
|
+ $text
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Inline;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineCode($Excerpt)
|
|
|
+ {
|
|
|
+ $marker = $Excerpt['text'][0];
|
|
|
+
|
|
|
+ if (preg_match('/^(['.$marker.']++)[ ]*+(.+?)[ ]*+(?<!['.$marker.'])\1(?!'.$marker.')/s', $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ $text = $matches[2];
|
|
|
+ $text = preg_replace('/[ ]*+\n/', ' ', $text);
|
|
|
+
|
|
|
+ return array(
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'code',
|
|
|
+ 'text' => $text,
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineEmailTag($Excerpt)
|
|
|
+ {
|
|
|
+ $hostnameLabel = '[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?';
|
|
|
+
|
|
|
+ $commonMarkEmail = '[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]++@'
|
|
|
+ . $hostnameLabel . '(?:\.' . $hostnameLabel . ')*';
|
|
|
+
|
|
|
+ if (strpos($Excerpt['text'], '>') !== false
|
|
|
+ and preg_match("/^<((mailto:)?$commonMarkEmail)>/i", $Excerpt['text'], $matches)
|
|
|
+ ){
|
|
|
+ $url = $matches[1];
|
|
|
+
|
|
|
+ if ( ! isset($matches[2]))
|
|
|
+ {
|
|
|
+ $url = "mailto:$url";
|
|
|
+ }
|
|
|
+
|
|
|
+ return array(
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'a',
|
|
|
+ 'text' => $matches[1],
|
|
|
+ 'attributes' => array(
|
|
|
+ 'href' => $url,
|
|
|
+ ),
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineEmphasis($Excerpt)
|
|
|
+ {
|
|
|
+ if ( ! isset($Excerpt['text'][1]))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $marker = $Excerpt['text'][0];
|
|
|
+
|
|
|
+ if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ $emphasis = 'strong';
|
|
|
+ }
|
|
|
+ elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ $emphasis = 'em';
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ return array(
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => $emphasis,
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => $matches[1],
|
|
|
+ 'destination' => 'elements',
|
|
|
+ )
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineEscapeSequence($Excerpt)
|
|
|
+ {
|
|
|
+ if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters))
|
|
|
+ {
|
|
|
+ return array(
|
|
|
+ 'element' => array('rawHtml' => $Excerpt['text'][1]),
|
|
|
+ 'extent' => 2,
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineImage($Excerpt)
|
|
|
+ {
|
|
|
+ if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Excerpt['text']= substr($Excerpt['text'], 1);
|
|
|
+
|
|
|
+ $Link = $this->inlineLink($Excerpt);
|
|
|
+
|
|
|
+ if ($Link === null)
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Inline = array(
|
|
|
+ 'extent' => $Link['extent'] + 1,
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'img',
|
|
|
+ 'attributes' => array(
|
|
|
+ 'src' => $Link['element']['attributes']['href'],
|
|
|
+ 'alt' => $Link['element']['handler']['argument'],
|
|
|
+ ),
|
|
|
+ 'autobreak' => true,
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ $Inline['element']['attributes'] += $Link['element']['attributes'];
|
|
|
+
|
|
|
+ unset($Inline['element']['attributes']['href']);
|
|
|
+
|
|
|
+ return $Inline;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineLink($Excerpt)
|
|
|
+ {
|
|
|
+ $Element = array(
|
|
|
+ 'name' => 'a',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => null,
|
|
|
+ 'destination' => 'elements',
|
|
|
+ ),
|
|
|
+ 'nonNestables' => array('Url', 'Link'),
|
|
|
+ 'attributes' => array(
|
|
|
+ 'href' => null,
|
|
|
+ 'title' => null,
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ $extent = 0;
|
|
|
+
|
|
|
+ $remainder = $Excerpt['text'];
|
|
|
+
|
|
|
+ if (preg_match('/\[((?:[^][]++|(?R))*+)\]/', $remainder, $matches))
|
|
|
+ {
|
|
|
+ $Element['handler']['argument'] = $matches[1];
|
|
|
+
|
|
|
+ $extent += strlen($matches[0]);
|
|
|
+
|
|
|
+ $remainder = substr($remainder, $extent);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (preg_match('/^[(]\s*+((?:[^ ()]++|[(][^ )]+[)])++)(?:[ ]+("[^"]*+"|\'[^\']*+\'))?\s*+[)]/', $remainder, $matches))
|
|
|
+ {
|
|
|
+ $Element['attributes']['href'] = $matches[1];
|
|
|
+
|
|
|
+ if (isset($matches[2]))
|
|
|
+ {
|
|
|
+ $Element['attributes']['title'] = substr($matches[2], 1, - 1);
|
|
|
+ }
|
|
|
+
|
|
|
+ $extent += strlen($matches[0]);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
|
|
|
+ {
|
|
|
+ $definition = strlen($matches[1]) ? $matches[1] : $Element['handler']['argument'];
|
|
|
+ $definition = strtolower($definition);
|
|
|
+
|
|
|
+ $extent += strlen($matches[0]);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ $definition = strtolower($Element['handler']['argument']);
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ! isset($this->DefinitionData['Reference'][$definition]))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ $Definition = $this->DefinitionData['Reference'][$definition];
|
|
|
+
|
|
|
+ $Element['attributes']['href'] = $Definition['url'];
|
|
|
+ $Element['attributes']['title'] = $Definition['title'];
|
|
|
+ }
|
|
|
+
|
|
|
+ return array(
|
|
|
+ 'extent' => $extent,
|
|
|
+ 'element' => $Element,
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineMarkup($Excerpt)
|
|
|
+ {
|
|
|
+ if ($this->markupEscaped or $this->safeMode or strpos($Excerpt['text'], '>') === false)
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w[\w-]*+[ ]*+>/s', $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ return array(
|
|
|
+ 'element' => array('rawHtml' => $matches[0]),
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?+[^-])*-->/s', $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ return array(
|
|
|
+ 'element' => array('rawHtml' => $matches[0]),
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w[\w-]*+(?:[ ]*+'.$this->regexHtmlAttribute.')*+[ ]*+\/?>/s', $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ return array(
|
|
|
+ 'element' => array('rawHtml' => $matches[0]),
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineSpecialCharacter($Excerpt)
|
|
|
+ {
|
|
|
+ if ($Excerpt['text'][1] !== ' ' and strpos($Excerpt['text'], ';') !== false
|
|
|
+ and preg_match('/^&(#?+[0-9a-zA-Z]++);/', $Excerpt['text'], $matches)
|
|
|
+ ) {
|
|
|
+ return array(
|
|
|
+ 'element' => array('rawHtml' => '&' . $matches[1] . ';'),
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineStrikethrough($Excerpt)
|
|
|
+ {
|
|
|
+ if ( ! isset($Excerpt['text'][1]))
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ return array(
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'del',
|
|
|
+ 'handler' => array(
|
|
|
+ 'function' => 'lineElements',
|
|
|
+ 'argument' => $matches[1],
|
|
|
+ 'destination' => 'elements',
|
|
|
+ )
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineUrl($Excerpt)
|
|
|
+ {
|
|
|
+ if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/')
|
|
|
+ {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (strpos($Excerpt['context'], 'http') !== false
|
|
|
+ and preg_match('/\bhttps?+:[\/]{2}[^\s<]+\b\/*+/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE)
|
|
|
+ ) {
|
|
|
+ $url = $matches[0][0];
|
|
|
+
|
|
|
+ $Inline = array(
|
|
|
+ 'extent' => strlen($matches[0][0]),
|
|
|
+ 'position' => $matches[0][1],
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'a',
|
|
|
+ 'text' => $url,
|
|
|
+ 'attributes' => array(
|
|
|
+ 'href' => $url,
|
|
|
+ ),
|
|
|
+ ),
|
|
|
+ );
|
|
|
+
|
|
|
+ return $Inline;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function inlineUrlTag($Excerpt)
|
|
|
+ {
|
|
|
+ if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w++:\/{2}[^ >]++)>/i', $Excerpt['text'], $matches))
|
|
|
+ {
|
|
|
+ $url = $matches[1];
|
|
|
+
|
|
|
+ return array(
|
|
|
+ 'extent' => strlen($matches[0]),
|
|
|
+ 'element' => array(
|
|
|
+ 'name' => 'a',
|
|
|
+ 'text' => $url,
|
|
|
+ 'attributes' => array(
|
|
|
+ 'href' => $url,
|
|
|
+ ),
|
|
|
+ ),
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ # ~
|
|
|
+
|
|
|
+ protected function unmarkedText($text)
|
|
|
+ {
|
|
|
+ $Inline = $this->inlineText($text);
|
|
|
+ return $this->element($Inline['element']);
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Handlers
|
|
|
+ #
|
|
|
+
|
|
|
+ protected function handle(array $Element)
|
|
|
+ {
|
|
|
+ if (isset($Element['handler']))
|
|
|
+ {
|
|
|
+ if (!isset($Element['nonNestables']))
|
|
|
+ {
|
|
|
+ $Element['nonNestables'] = array();
|
|
|
+ }
|
|
|
+
|
|
|
+ if (is_string($Element['handler']))
|
|
|
+ {
|
|
|
+ $function = $Element['handler'];
|
|
|
+ $argument = $Element['text'];
|
|
|
+ unset($Element['text']);
|
|
|
+ $destination = 'rawHtml';
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ $function = $Element['handler']['function'];
|
|
|
+ $argument = $Element['handler']['argument'];
|
|
|
+ $destination = $Element['handler']['destination'];
|
|
|
+ }
|
|
|
+
|
|
|
+ $Element[$destination] = $this->{$function}($argument, $Element['nonNestables']);
|
|
|
+
|
|
|
+ if ($destination === 'handler')
|
|
|
+ {
|
|
|
+ $Element = $this->handle($Element);
|
|
|
+ }
|
|
|
+
|
|
|
+ unset($Element['handler']);
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function handleElementRecursive(array $Element)
|
|
|
+ {
|
|
|
+ return $this->elementApplyRecursive(array($this, 'handle'), $Element);
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function handleElementsRecursive(array $Elements)
|
|
|
+ {
|
|
|
+ return $this->elementsApplyRecursive(array($this, 'handle'), $Elements);
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function elementApplyRecursive($closure, array $Element)
|
|
|
+ {
|
|
|
+ $Element = call_user_func($closure, $Element);
|
|
|
+
|
|
|
+ if (isset($Element['elements']))
|
|
|
+ {
|
|
|
+ $Element['elements'] = $this->elementsApplyRecursive($closure, $Element['elements']);
|
|
|
+ }
|
|
|
+ elseif (isset($Element['element']))
|
|
|
+ {
|
|
|
+ $Element['element'] = $this->elementApplyRecursive($closure, $Element['element']);
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function elementApplyRecursiveDepthFirst($closure, array $Element)
|
|
|
+ {
|
|
|
+ if (isset($Element['elements']))
|
|
|
+ {
|
|
|
+ $Element['elements'] = $this->elementsApplyRecursiveDepthFirst($closure, $Element['elements']);
|
|
|
+ }
|
|
|
+ elseif (isset($Element['element']))
|
|
|
+ {
|
|
|
+ $Element['element'] = $this->elementsApplyRecursiveDepthFirst($closure, $Element['element']);
|
|
|
+ }
|
|
|
+
|
|
|
+ $Element = call_user_func($closure, $Element);
|
|
|
+
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function elementsApplyRecursive($closure, array $Elements)
|
|
|
+ {
|
|
|
+ foreach ($Elements as &$Element)
|
|
|
+ {
|
|
|
+ $Element = $this->elementApplyRecursive($closure, $Element);
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Elements;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function elementsApplyRecursiveDepthFirst($closure, array $Elements)
|
|
|
+ {
|
|
|
+ foreach ($Elements as &$Element)
|
|
|
+ {
|
|
|
+ $Element = $this->elementApplyRecursiveDepthFirst($closure, $Element);
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Elements;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function element(array $Element)
|
|
|
+ {
|
|
|
+ if ($this->safeMode)
|
|
|
+ {
|
|
|
+ $Element = $this->sanitiseElement($Element);
|
|
|
+ }
|
|
|
+
|
|
|
+ # identity map if element has no handler
|
|
|
+ $Element = $this->handle($Element);
|
|
|
+
|
|
|
+ $hasName = isset($Element['name']);
|
|
|
+
|
|
|
+ $markup = '';
|
|
|
+
|
|
|
+ if ($hasName)
|
|
|
+ {
|
|
|
+ $markup .= '<' . $Element['name'];
|
|
|
+
|
|
|
+ if (isset($Element['attributes']))
|
|
|
+ {
|
|
|
+ foreach ($Element['attributes'] as $name => $value)
|
|
|
+ {
|
|
|
+ if ($value === null)
|
|
|
+ {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ $markup .= " $name=\"".self::escape($value).'"';
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ $permitRawHtml = false;
|
|
|
+
|
|
|
+ if (isset($Element['text']))
|
|
|
+ {
|
|
|
+ $text = $Element['text'];
|
|
|
+ }
|
|
|
+ // very strongly consider an alternative if you're writing an
|
|
|
+ // extension
|
|
|
+ elseif (isset($Element['rawHtml']))
|
|
|
+ {
|
|
|
+ $text = $Element['rawHtml'];
|
|
|
+
|
|
|
+ $allowRawHtmlInSafeMode = isset($Element['allowRawHtmlInSafeMode']) && $Element['allowRawHtmlInSafeMode'];
|
|
|
+ $permitRawHtml = !$this->safeMode || $allowRawHtmlInSafeMode;
|
|
|
+ }
|
|
|
+
|
|
|
+ $hasContent = isset($text) || isset($Element['element']) || isset($Element['elements']);
|
|
|
+
|
|
|
+ if ($hasContent)
|
|
|
+ {
|
|
|
+ $markup .= $hasName ? '>' : '';
|
|
|
+
|
|
|
+ if (isset($Element['elements']))
|
|
|
+ {
|
|
|
+ $markup .= $this->elements($Element['elements']);
|
|
|
+ }
|
|
|
+ elseif (isset($Element['element']))
|
|
|
+ {
|
|
|
+ $markup .= $this->element($Element['element']);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ if (!$permitRawHtml)
|
|
|
+ {
|
|
|
+ $markup .= self::escape($text, true);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ $markup .= $text;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ $markup .= $hasName ? '</' . $Element['name'] . '>' : '';
|
|
|
+ }
|
|
|
+ elseif ($hasName)
|
|
|
+ {
|
|
|
+ $markup .= ' />';
|
|
|
+ }
|
|
|
+
|
|
|
+ return $markup;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function elements(array $Elements)
|
|
|
+ {
|
|
|
+ $markup = '';
|
|
|
+
|
|
|
+ $autoBreak = true;
|
|
|
+
|
|
|
+ foreach ($Elements as $Element)
|
|
|
+ {
|
|
|
+ if (empty($Element))
|
|
|
+ {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ $autoBreakNext = (isset($Element['autobreak'])
|
|
|
+ ? $Element['autobreak'] : isset($Element['name'])
|
|
|
+ );
|
|
|
+ // (autobreak === false) covers both sides of an element
|
|
|
+ $autoBreak = !$autoBreak ? $autoBreak : $autoBreakNext;
|
|
|
+
|
|
|
+ $markup .= ($autoBreak ? "\n" : '') . $this->element($Element);
|
|
|
+ $autoBreak = $autoBreakNext;
|
|
|
+ }
|
|
|
+
|
|
|
+ $markup .= $autoBreak ? "\n" : '';
|
|
|
+
|
|
|
+ return $markup;
|
|
|
+ }
|
|
|
+
|
|
|
+ # ~
|
|
|
+
|
|
|
+ protected function li($lines)
|
|
|
+ {
|
|
|
+ $Elements = $this->linesElements($lines);
|
|
|
+
|
|
|
+ if ( ! in_array('', $lines)
|
|
|
+ and isset($Elements[0]) and isset($Elements[0]['name'])
|
|
|
+ and $Elements[0]['name'] === 'p'
|
|
|
+ ) {
|
|
|
+ unset($Elements[0]['name']);
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Elements;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # AST Convenience
|
|
|
+ #
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Replace occurrences $regexp with $Elements in $text. Return an array of
|
|
|
+ * elements representing the replacement.
|
|
|
+ */
|
|
|
+ protected static function pregReplaceElements($regexp, $Elements, $text)
|
|
|
+ {
|
|
|
+ $newElements = array();
|
|
|
+
|
|
|
+ while (preg_match($regexp, $text, $matches, PREG_OFFSET_CAPTURE))
|
|
|
+ {
|
|
|
+ $offset = $matches[0][1];
|
|
|
+ $before = substr($text, 0, $offset);
|
|
|
+ $after = substr($text, $offset + strlen($matches[0][0]));
|
|
|
+
|
|
|
+ $newElements[] = array('text' => $before);
|
|
|
+
|
|
|
+ foreach ($Elements as $Element)
|
|
|
+ {
|
|
|
+ $newElements[] = $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ $text = $after;
|
|
|
+ }
|
|
|
+
|
|
|
+ $newElements[] = array('text' => $text);
|
|
|
+
|
|
|
+ return $newElements;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Deprecated Methods
|
|
|
+ #
|
|
|
+
|
|
|
+ function parse($text)
|
|
|
+ {
|
|
|
+ $markup = $this->text($text);
|
|
|
+
|
|
|
+ return $markup;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function sanitiseElement(array $Element)
|
|
|
+ {
|
|
|
+ static $goodAttribute = '/^[a-zA-Z0-9][a-zA-Z0-9-_]*+$/';
|
|
|
+ static $safeUrlNameToAtt = array(
|
|
|
+ 'a' => 'href',
|
|
|
+ 'img' => 'src',
|
|
|
+ );
|
|
|
+
|
|
|
+ if ( ! isset($Element['name']))
|
|
|
+ {
|
|
|
+ unset($Element['attributes']);
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (isset($safeUrlNameToAtt[$Element['name']]))
|
|
|
+ {
|
|
|
+ $Element = $this->filterUnsafeUrlInAttribute($Element, $safeUrlNameToAtt[$Element['name']]);
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ! empty($Element['attributes']))
|
|
|
+ {
|
|
|
+ foreach ($Element['attributes'] as $att => $val)
|
|
|
+ {
|
|
|
+ # filter out badly parsed attribute
|
|
|
+ if ( ! preg_match($goodAttribute, $att))
|
|
|
+ {
|
|
|
+ unset($Element['attributes'][$att]);
|
|
|
+ }
|
|
|
+ # dump onevent attribute
|
|
|
+ elseif (self::striAtStart($att, 'on'))
|
|
|
+ {
|
|
|
+ unset($Element['attributes'][$att]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ protected function filterUnsafeUrlInAttribute(array $Element, $attribute)
|
|
|
+ {
|
|
|
+ foreach ($this->safeLinksWhitelist as $scheme)
|
|
|
+ {
|
|
|
+ if (self::striAtStart($Element['attributes'][$attribute], $scheme))
|
|
|
+ {
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ $Element['attributes'][$attribute] = str_replace(':', '%3A', $Element['attributes'][$attribute]);
|
|
|
+
|
|
|
+ return $Element;
|
|
|
+ }
|
|
|
+
|
|
|
+ #
|
|
|
+ # Static Methods
|
|
|
+ #
|
|
|
+
|
|
|
+ protected static function escape($text, $allowQuotes = false)
|
|
|
+ {
|
|
|
+ return htmlspecialchars($text, $allowQuotes ? ENT_NOQUOTES : ENT_QUOTES, 'UTF-8');
|
|
|
+ }
|
|
|
+
|
|
|
+ protected static function striAtStart($string, $needle)
|
|
|
+ {
|
|
|
+ $len = strlen($needle);
|
|
|
+
|
|
|
+ if ($len > strlen($string))
|
|
|
+ {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ return strtolower(substr($string, 0, $len)) === strtolower($needle);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ static function instance($name = 'default')
|
|
|
+ {
|
|
|
+ if (isset(self::$instances[$name]))
|
|
|
+ {
|
|
|
+ return self::$instances[$name];
|
|
|
+ }
|
|
|
+
|
|
|
+ $instance = new static();
|
|
|
+
|
|
|
+ self::$instances[$name] = $instance;
|
|
|
+
|
|
|
+ return $instance;
|
|
|
+ }
|
|
|
+
|
|
|
+ private static $instances = array();
|
|
|
+
|
|
|
+ #
|
|
|
+ # Fields
|
|
|
+ #
|
|
|
+
|
|
|
+ protected $DefinitionData;
|
|
|
+
|
|
|
+ #
|
|
|
+ # Read-Only
|
|
|
+
|
|
|
+ protected $specialCharacters = array(
|
|
|
+ '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|', '~'
|
|
|
+ );
|
|
|
+
|
|
|
+ protected $StrongRegex = array(
|
|
|
+ '*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*+[*])+?)[*]{2}(?![*])/s',
|
|
|
+ '_' => '/^__((?:\\\\_|[^_]|_[^_]*+_)+?)__(?!_)/us',
|
|
|
+ );
|
|
|
+
|
|
|
+ protected $EmRegex = array(
|
|
|
+ '*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s',
|
|
|
+ '_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us',
|
|
|
+ );
|
|
|
+
|
|
|
+ protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*+(?:\s*+=\s*+(?:[^"\'=<>`\s]+|"[^"]*+"|\'[^\']*+\'))?+';
|
|
|
+
|
|
|
+ protected $voidElements = array(
|
|
|
+ 'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
|
|
|
+ );
|
|
|
+
|
|
|
+ protected $textLevelElements = array(
|
|
|
+ 'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
|
|
|
+ 'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',
|
|
|
+ 'i', 'rp', 'del', 'code', 'strike', 'marquee',
|
|
|
+ 'q', 'rt', 'ins', 'font', 'strong',
|
|
|
+ 's', 'tt', 'kbd', 'mark',
|
|
|
+ 'u', 'xm', 'sub', 'nobr',
|
|
|
+ 'sup', 'ruby',
|
|
|
+ 'var', 'span',
|
|
|
+ 'wbr', 'time',
|
|
|
+ );
|
|
|
+}
|
AntonLV