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PhutilRemarkupInterpreterBlockRule.php
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Thu, Oct 31, 11:38

PhutilRemarkupInterpreterBlockRule.php
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<?php
final class PhutilRemarkupInterpreterBlockRule extends PhutilRemarkupBlockRule {
const START_BLOCK_PATTERN = '/^([\w]+)\s*(?:\(([^)]+)\)\s*)?{{{/';
const END_BLOCK_PATTERN = '/}}}\s*$/';
public function getMatchingLineCount(array $lines, $cursor) {
$num_lines = 0;
if (preg_match(self::START_BLOCK_PATTERN, $lines[$cursor])) {
$num_lines++;
while (isset($lines[$cursor])) {
if (preg_match(self::END_BLOCK_PATTERN, $lines[$cursor])) {
break;
}
$num_lines++;
$cursor++;
}
}
return $num_lines;
}
public function markupText($text, $children) {
$lines = explode("\n", $text);
$first_key = head_key($lines);
$last_key = last_key($lines);
while (trim($lines[$last_key]) === '') {
unset($lines[$last_key]);
$last_key = last_key($lines);
}
$matches = null;
preg_match(self::START_BLOCK_PATTERN, head($lines), $matches);
$argv = array();
if (isset($matches[2])) {
$argv = id(new PhutilSimpleOptions())->parse($matches[2]);
}
$interpreters = id(new PhutilSymbolLoader())
->setAncestorClass('PhutilRemarkupBlockInterpreter')
->loadObjects();
foreach ($interpreters as $interpreter) {
$interpreter->setEngine($this->getEngine());
}
$lines[$first_key] = preg_replace(
self::START_BLOCK_PATTERN,
'',
$lines[$first_key]);
$lines[$last_key] = preg_replace(
self::END_BLOCK_PATTERN,
'',
$lines[$last_key]);
if (trim($lines[$first_key]) === '') {
unset($lines[$first_key]);
}
if (trim($lines[$last_key]) === '') {
unset($lines[$last_key]);
}
$content = implode("\n", $lines);
$interpreters = mpull($interpreters, null, 'getInterpreterName');
if (isset($interpreters[$matches[1]])) {
return $interpreters[$matches[1]]->markupContent($content, $argv);
}
$message = pht('No interpreter found: %s', $matches[1]);
if ($this->getEngine()->isTextMode()) {
return '('.$message.')';
}
return phutil_tag(
'div',
array(
'class' => 'remarkup-interpreter-error',
),
$message);
}
}

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