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<?php
namespace dokuwiki\Parsing\Handler;
/**
* Generic call writer class to handle nesting of rendering instructions
* within a render instruction. Also see nest() method of renderer base class
*
* @author Chris Smith <chris@jalakai.co.uk>
*/
class Nest extends AbstractRewriter
{
protected $closingInstruction;
/**
* @inheritdoc
*
* @param CallWriterInterface $CallWriter the parser's current call writer, i.e. the one above us in the chain
* @param string $close closing instruction name, this is required to properly terminate the
* syntax mode if the document ends without a closing pattern
*/
public function __construct(CallWriterInterface $CallWriter, $close = "nest_close")
{
parent::__construct($CallWriter);
$this->closingInstruction = $close;
}
/** @inheritdoc */
public function writeCall($call)
{
$this->calls[] = $call;
}
/** @inheritdoc */
public function writeCalls($calls)
{
$this->calls = array_merge($this->calls, $calls);
}
/** @inheritdoc */
public function finalise()
{
$last_call = end($this->calls);
$this->writeCall([$this->closingInstruction, [], $last_call[2]]);
$this->process();
$this->callWriter->finalise();
unset($this->callWriter);
}
/** @inheritdoc */
public function process()
{
// merge consecutive cdata
$unmerged_calls = $this->calls;
$this->calls = [];
foreach ($unmerged_calls as $call) $this->addCall($call);
$first_call = reset($this->calls);
$this->callWriter->writeCall(["nest", [$this->calls], $first_call[2]]);
return $this->callWriter;
}
/**
* @param array $call
*/
protected function addCall($call)
{
$key = count($this->calls);
if ($key && $call[0] == 'cdata' && $this->calls[$key - 1][0] == 'cdata') {
$this->calls[$key - 1][1][0] .= $call[1][0];
} elseif ($call[0] == 'eol') {
// do nothing (eol shouldn't be allowed, to counter preformatted fix in #1652 & #1699)
} else {
$this->calls[] = $call;
}
}
}
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