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/home/tahkoom/public_html/wp-content/plugins/chatbot/includes/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',
);
}
}
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Run Command
تصوير بلا حدود…كيف غيّرت الهواتف الذكية مفهوم الكاميرا؟ – tahkoom.com
كتبت ميرنا أشرف
التكنولوجيا اصبحت تتسارع عبر الزمن وتسبقه بخطوة حيث انها أصبحت تلعب دورًا مهماً في إعادة تشكيل عالم التصوير، فلم تعد الهواتف الذكية مجرد أدوات للتواصل الاجتماعي فقط يل تحولت إلى منصات تصوير متطورة تنافس الكاميرات الاحترافية في العديد من الجوانب .
أكد الأستاذ مجدي إبراهيم، رئيس قسم التصوير وشعبة المصورين الصحفيين، أن دخول التكنولوجيا الحديثة في الهواتف الذكية له تأثير كبيرا جدا ومهم وشكل عامل ضغط كبير على الكاميرات لكن التكنولوجيا اثرت ايضا وطورت الكاميرات الاحترافية بشكل متسارع .
أوضح إبراهيم، أن إدخال الذكاء الاصطناعي (AI) في الكاميرات الاحترافية، فإننا نشهد تحولات كبيرة في جودة التصوير. لكنه أضاف أيضًا أن الهواتف الذكية تتقدم بخطى سريعة جدًا، حيث اصبح بإمكانها تقديم صور ومقاطع فيديو بجودة فائقة، مدعومة بتقنيات الذكاء الاصطناعي، ومعالجة الصور المتقدمة، ومستشعرات أكثر تطورًا
هواتف بكاميرات احترافية
بينما يري الأستاذ أمير أيمن، مصور محترف، الي أن الهواتف الذكية في وقتنا هذا تأتي بكاميرات قوية يوجد بها مستشعرات كبيرة وعدسات متنوعة (واسعة، تيليفوتو، ماكرو)، فأصبح من السهل تصوير أي شيء بجودة عالية بدون الاحتياج لكاميرا احترافية .
أضاف أيمن، أن الذكاء الاصطناعي أصبح يفعل كل شيء بسهولة مثلاً : الهاتف يحلل الصورة ويعدل الألوان والإضاءة تلقائيًا لكي تصبح بأفضل شكل، حتى في الليل أو الإضاءة الضعيفة، ميزة العزل في صور البورتريه وتحسين الصور تلقائيًا اصبحت تنافس الكاميرات الاحترافية .
اتفقا الطرفان علي، أن المستقبل قد يشهد استخدام الهواتف الذكية في تصوير البرامج لتلفزيونية والمسلسلات والأفلام السينمائية، حيث أصبح التطور الكبير لهذه الأجهزة يمكنها من التنافس مع الكاميرات الاحترافية، خاصة مع تحسينات البرمجيات وتقنيات التصوير التي تعالج الصور بشكل فوري وتعزز الجودة بطريقة لا يمكن للكاميرات التقليدية مجاراتها بسهولة .
يري الطرفان، أن الهواتف الذكية لن تحل محل الكاميرات الاحترافية بشكل كامل، ولكن يمكن أن تتوسع مجالات استخدامها لتشمل مجالات كانت في السابق مقتصره على المعدات لسينمائية المتخصصة. فمن خلال تحسينات مثل التصوير بتقنية HDR ، ومستشعرات الليزر للتركيز التلقائي، والقدرة على التصوير في ظروف إضاءة منخفضة، أصبحت الهواتف تقدم حلولًا عملية وسريعة يمكن الاعتماد عليها في العديد من الاستخدامات الاحترافية، مما قد جعلها الخيار الأول للعديد من المصورين وصناع المحتوى في المستقبل القريب .
كل هذه العوامل جعلت التصوير بالهواتف الذكية يتفوق في كثير من الجوانب، حيث أصبح جمع بين الجودة والسرعة في الإنتاج، وسهولة التعديل، والإمكانيات المتطورة، مما يفتح لمجال أمام المزيد من الابتكار والإبداع في عالم التصوير .
امثلة عن افلام وجمل اعلانية تم تصويرها بالموبايل :
Apple – “Shot on iPhone” Campaign .1
حملة إعلانية ضخمة أطلقتها آبل، تضمنت مقاطع فيديو وصور مذهلة تم تصويرها بالكامل باستخدام آيفون، وأثبتت أن الهاتف قادر على إنتاج محتوى احترافي .
Samsung Galaxy S21 Ultra – “Filmed #withGalaxy” .2
حملة إعلانية عالمية استخدمت هواتف سامسونج لإبراز إمكانيات الكاميرا، خاصة في لتصوير الليلي واللقطات البطيئة .
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