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/home/tahkoom/public_html/wp-content/plugins/chatbot/inc/parsedown.php
<?php
#
#
# Parsedown
# http://parsedown.org
#
# (c) Emanuil Rusev
# http://erusev.com
#
# For the full license information, view the LICENSE file that was distributed
# with this source code.
#
#
if(!class_exists('Parsedown')){
class Parsedown
{
# ~
const version = '1.8.0-beta-7';
# ~
function text($text)
{
$Elements = $this->textElements($text);
# convert to markup
$markup = $this->elements($Elements);
# trim line breaks
$markup = trim($markup, "\n");
return $markup;
}
protected function textElements($text)
{
# make sure no definitions are set
$this->DefinitionData = array();
# standardize line breaks
$text = str_replace(array("\r\n", "\r"), "\n", $text);
# remove surrounding line breaks
$text = trim($text, "\n");
# split text into lines
$lines = explode("\n", $text);
# iterate through lines to identify blocks
return $this->linesElements($lines);
}
#
# Setters
#
function setBreaksEnabled($breaksEnabled)
{
$this->breaksEnabled = $breaksEnabled;
return $this;
}
protected $breaksEnabled;
function setMarkupEscaped($markupEscaped)
{
$this->markupEscaped = $markupEscaped;
return $this;
}
protected $markupEscaped;
function setUrlsLinked($urlsLinked)
{
$this->urlsLinked = $urlsLinked;
return $this;
}
protected $urlsLinked = true;
function setSafeMode($safeMode)
{
$this->safeMode = (bool) $safeMode;
return $this;
}
protected $safeMode;
function setStrictMode($strictMode)
{
$this->strictMode = (bool) $strictMode;
return $this;
}
protected $strictMode;
protected $safeLinksWhitelist = array(
'http://',
'https://',
'ftp://',
'ftps://',
'mailto:',
'tel:',
'data:image/png;base64,',
'data:image/gif;base64,',
'data:image/jpeg;base64,',
'irc:',
'ircs:',
'git:',
'ssh:',
'news:',
'steam:',
);
#
# Lines
#
protected $BlockTypes = array(
'#' => array('Header'),
'*' => array('Rule', 'List'),
'+' => array('List'),
'-' => array('SetextHeader', 'Table', 'Rule', 'List'),
'0' => array('List'),
'1' => array('List'),
'2' => array('List'),
'3' => array('List'),
'4' => array('List'),
'5' => array('List'),
'6' => array('List'),
'7' => array('List'),
'8' => array('List'),
'9' => array('List'),
':' => array('Table'),
'<' => array('Comment', 'Markup'),
'=' => array('SetextHeader'),
'>' => array('Quote'),
'[' => array('Reference'),
'_' => array('Rule'),
'`' => array('FencedCode'),
'|' => array('Table'),
'~' => array('FencedCode'),
);
# ~
protected $unmarkedBlockTypes = array(
'Code',
);
#
# Blocks
#
protected function lines(array $lines)
{
return $this->elements($this->linesElements($lines));
}
protected function linesElements(array $lines)
{
$Elements = array();
$CurrentBlock = null;
foreach ($lines as $line)
{
if (chop($line) === '')
{
if (isset($CurrentBlock))
{
$CurrentBlock['interrupted'] = (isset($CurrentBlock['interrupted'])
? $CurrentBlock['interrupted'] + 1 : 1
);
}
continue;
}
while (($beforeTab = strstr($line, "\t", true)) !== false)
{
$shortage = 4 - mb_strlen($beforeTab, 'utf-8') % 4;
$line = $beforeTab
. str_repeat(' ', $shortage)
. substr($line, strlen($beforeTab) + 1)
;
}
$indent = strspn($line, ' ');
$text = $indent > 0 ? substr($line, $indent) : $line;
# ~
$Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
# ~
if (isset($CurrentBlock['continuable']))
{
$methodName = 'block' . $CurrentBlock['type'] . 'Continue';
$Block = $this->$methodName($Line, $CurrentBlock);
if (isset($Block))
{
$CurrentBlock = $Block;
continue;
}
else
{
if ($this->isBlockCompletable($CurrentBlock['type']))
{
$methodName = 'block' . $CurrentBlock['type'] . 'Complete';
$CurrentBlock = $this->$methodName($CurrentBlock);
}
}
}
# ~
$marker = $text[0];
# ~
$blockTypes = $this->unmarkedBlockTypes;
if (isset($this->BlockTypes[$marker]))
{
foreach ($this->BlockTypes[$marker] as $blockType)
{
$blockTypes []= $blockType;
}
}
#
# ~
foreach ($blockTypes as $blockType)
{
$Block = $this->{"block$blockType"}($Line, $CurrentBlock);
if (isset($Block))
{
$Block['type'] = $blockType;
if ( ! isset($Block['identified']))
{
if (isset($CurrentBlock))
{
$Elements[] = $this->extractElement($CurrentBlock);
}
$Block['identified'] = true;
}
if ($this->isBlockContinuable($blockType))
{
$Block['continuable'] = true;
}
$CurrentBlock = $Block;
continue 2;
}
}
# ~
if (isset($CurrentBlock) and $CurrentBlock['type'] === 'Paragraph')
{
$Block = $this->paragraphContinue($Line, $CurrentBlock);
}
if (isset($Block))
{
$CurrentBlock = $Block;
}
else
{
if (isset($CurrentBlock))
{
$Elements[] = $this->extractElement($CurrentBlock);
}
$CurrentBlock = $this->paragraph($Line);
$CurrentBlock['identified'] = true;
}
}
# ~
if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type']))
{
$methodName = 'block' . $CurrentBlock['type'] . 'Complete';
$CurrentBlock = $this->$methodName($CurrentBlock);
}
# ~
if (isset($CurrentBlock))
{
$Elements[] = $this->extractElement($CurrentBlock);
}
# ~
return $Elements;
}
protected function extractElement(array $Component)
{
if ( ! isset($Component['element']))
{
if (isset($Component['markup']))
{
$Component['element'] = array('rawHtml' => $Component['markup']);
}
elseif (isset($Component['hidden']))
{
$Component['element'] = array();
}
}
return $Component['element'];
}
protected function isBlockContinuable($Type)
{
return method_exists($this, 'block' . $Type . 'Continue');
}
protected function isBlockCompletable($Type)
{
return method_exists($this, 'block' . $Type . 'Complete');
}
#
# Code
protected function blockCode($Line, $Block = null)
{
if (isset($Block) and $Block['type'] === 'Paragraph' and ! isset($Block['interrupted']))
{
return;
}
if ($Line['indent'] >= 4)
{
$text = substr($Line['body'], 4);
$Block = array(
'element' => array(
'name' => 'pre',
'element' => array(
'name' => 'code',
'text' => $text,
),
),
);
return $Block;
}
}
protected function blockCodeContinue($Line, $Block)
{
if ($Line['indent'] >= 4)
{
if (isset($Block['interrupted']))
{
$Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']);
unset($Block['interrupted']);
}
$Block['element']['element']['text'] .= "\n";
$text = substr($Line['body'], 4);
$Block['element']['element']['text'] .= $text;
return $Block;
}
}
protected function blockCodeComplete($Block)
{
return $Block;
}
#
# Comment
protected function blockComment($Line)
{
if ($this->markupEscaped or $this->safeMode)
{
return;
}
if (strpos($Line['text'], '<!--') === 0)
{
$Block = array(
'element' => array(
'rawHtml' => $Line['body'],
'autobreak' => true,
),
);
if (strpos($Line['text'], '-->') !== false)
{
$Block['closed'] = true;
}
return $Block;
}
}
protected function blockCommentContinue($Line, array $Block)
{
if (isset($Block['closed']))
{
return;
}
$Block['element']['rawHtml'] .= "\n" . $Line['body'];
if (strpos($Line['text'], '-->') !== false)
{
$Block['closed'] = true;
}
return $Block;
}
#
# Fenced Code
protected function blockFencedCode($Line)
{
$marker = $Line['text'][0];
$openerLength = strspn($Line['text'], $marker);
if ($openerLength < 3)
{
return;
}
$infostring = trim(substr($Line['text'], $openerLength), "\t ");
if (strpos($infostring, '`') !== false)
{
return;
}
$Element = array(
'name' => 'code',
'text' => '',
);
if ($infostring !== '')
{
/**
* https://www.w3.org/TR/2011/WD-html5-20110525/elements.html#classes
* Every HTML element may have a class attribute specified.
* The attribute, if specified, must have a value that is a set
* of space-separated tokens representing the various classes
* that the element belongs to.
* [...]
* The space characters, for the purposes of this specification,
* are U+0020 SPACE, U+0009 CHARACTER TABULATION (tab),
* U+000A LINE FEED (LF), U+000C FORM FEED (FF), and
* U+000D CARRIAGE RETURN (CR).
*/
$language = substr($infostring, 0, strcspn($infostring, " \t\n\f\r"));
$Element['attributes'] = array('class' => "language-$language");
}
$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' . $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())
{
# standardize line breaks
$text = str_replace(array("\r\n", "\r"), "\n", $text);
$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($Excerpt)
{
if (substr($Excerpt['text'], 1, 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',
);
}
}
Run Command [Bypass]
Run Command
كيف يسرق الذكاء الاصطناعي مقاعد الصحفيين و المصممين؟ – tahkoom.com
كتب إيريني أنطون-مريم سمير
مع التطور المتسارع لتقنيات الذكاء الاصطناعي، بدأت مهن عديدة تعتمد على الإبداع تواجه تحديات مصيرية، من أبرزها مهنة التصميم الجرافيكي والصحافة. وبينما يرى البعض أن هذه التقنيات مجرد أدوات مساعدة، يعتبرها آخرون تهديدًا حقيقيًا قد يغير شكل المهنة بشكل جذري.
تهديد الذكاء الاصطناعي لوظيفة المصمم بين الدعم والمنافسة
يرى الأستاذ أحمد بدر، مدير تصميم و مصمم هوايات، أن الذكاء الاصطناعي بدأ كأداة لتسهيل وتسريع العمل، لكنه مع مرور الوقت تطور بشكل كبير، ليصبح قادرًا على تقديم أعمال متكاملة كان من الصعب تخيلها سابقًا. وأوضح قائلًا:
“الذكاء الاصطناعي بقى يطلع 3D Models و Styles Illustrations بجودة أعلى، وبقى ممكن يطلع لك ستايل كامل لبراند لو دخلتله keywords وطبيعة البراند.”
ومن جانبها، تتفق الأستاذة أوليفيا أيمن، مصممة علامات تجارية، مع هذا الرأي إلى حد ما، لكنها ترى أن التهديد الحقيقي لا يكمن في الشكل الجمالي وحده، قائلة:
“التصميم مش مجرد شكل، ده بيحل مشكلة. ولازم ذكاء بشري لدراسة المشكلة وتقديم حلول ليها، وده حاجة الذكاء الاصطناعي لسه مش قادر يعملها.”
وفيما يتعلق بتغير سوق العمل، أشار بدر إلى أن أدوات الذكاء الاصطناعي أثرت على مجالات مثل التصوير ومعالجة الصور، حيث أصبحت بعض الوظائف مثل وظيفة الـ Retoucher مهددة بالاختفاء، مضيفًا:
“الـ AI بيطلع صور نظيفة جدًا وجاهزة، وده خلاه يستغنى عن وظائف كانت معتمدة على ال touch up بعد التصوير.”
وبنفس السياق، أوضحت أوليفيا أن سوق العمل أصبح يطلب بشكل أساسي معرفة باستخدام أدوات الذكاء الاصطناعي، قائلة:
معظم الشغل دلوقتي بقي بيطلب معرفة بالـ AI علشان ينجز وقت أكتر.”
وعن استخدام الأدوات الذكية في العمل، ذكر بدر أن الاعتماد أصبح كبيرًا على منصات مثل Midjourney و Freepik ، مؤكدًا أن البعض ينبهر بنتائجها حتى لو كان فيها بعض الأخطاء. وهو ما أكدته أوليفيا أيضًا بقولها:
“بشتغل براند ديزاينر وبستخدم الذكاء الاصطناعي في تجهيز الموك آب وأفكار الكونسبت والسلوجانز.”
التطوير هو الحل
يتفق المصممان على أن التطوير المستمر لمهارات المصممين أصبح ضرورة حتمية، حيث يرى بدر أن قوة الأفكار هي العنصر الأساسي للتفوق قائلا:
“الأفكار هي اللي بتفرق. التنفيذ خلاص بقى سهل، لكن الفكرة المبتكرة هي اللي بتخليك مميز.”
بينما شددت أوليفيا على أهمية التعلم المستمر ومواكبة الأدوات الجديدة، وأضافت:
“لو مشتغلتش على نفسك هيتم استبدالك. لازم تتطور نفسك بشكل مستمر.”
ورغم التطور الكبير في أدوات الذكاء الاصطناعي، إلا أن أوليفيا ترى أن بعض العملاء سيظلون يفضلون اللمسة البشرية، قائلة:
“في ناس لسه بتحب الحاجات الهاند ميد عن شغل المصانع، ومهما تطور الذكاء الاصطناعي، مش هيبدع زي الإنسان اللي بيستلهم من كل حاجة حواليه.”
الصحافة أيضًا في مرمى التهديد
وفيما يتعلق بتأثير الذكاء الاصطناعي على الصحافة، قال الأستاذ مفرح سرحان، نائب رئيس تحرير الأهرام المسائي ورئيس قسم الأهرام، إن الذكاء الاصطناعي يؤثر سلبًا على الصحافة التقليدية التي تفتقر للإبداع، مضيفًا:
“القوالب النمطية في الصحافة تتأثر بالتقنيات الحديثة، أما الصحفيون المبدعون مش هيتأثروا، لأن الإبداع لا يمكن تقليده.”
وأكد سرحان أن استخدام الروبوتات في كتابة الأخبار يمكن أن يكون وسيلة لمساعدة الصحفيين وليس استبدالهم، مشيرًا إلى أن الخطر الأكبر يتمثل في نشر الأخبار الكاذبة بسبب اعتماد الروبوت على الخوارزميات دون التحقق الإنساني من دقة المعلومات.
يبقى الأكيد أن الذكاء الاصطناعي أصبح واقعًا لا مفر منه، والتحدي الأكبر للعاملين بالمهن الإبداعية يتمثل في تطوير مهاراتهم وتعزيز قدراتهم الابتكارية، لضمان البقاء والمنافسة في عالم يتغير بوتيرة متسارعة.
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