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phab/src/applications/macro/markup/PhabricatorIconRemarkupRule.php
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PhabricatorIconRemarkupRule.php
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<?php
final class PhabricatorIconRemarkupRule extends PhutilRemarkupRule {
public function getPriority() {
return 200.0;
}
public function apply($text) {
return preg_replace_callback(
'@{icon\b((?:[^}\\\\]+|\\\\.)*)}@m',
array($this, 'markupIcon'),
$text);
}
public function markupIcon($matches) {
if (!$this->isFlatText($matches[0])) {
return $matches[0];
}
$extra = idx($matches, 1);
// We allow various forms, like these:
//
// {icon}
// {icon camera}
// {icon,camera}
// {icon camera color=red}
// {icon, camera, color=red}
$extra = ltrim($extra, ", \n");
$extra = preg_split('/[\s,]+/', $extra, 2);
// Choose some arbitrary default icon so that previews render in a mostly
// reasonable way as you're typing the syntax.
$icon = idx($extra, 0, 'paw');
$defaults = array(
'color' => null,
);
$options = idx($extra, 1, '');
$parser = new PhutilSimpleOptions();
$options = $parser->parse($options) + $defaults;
// NOTE: We're validating icon and color names to prevent users from
// adding arbitrary CSS classes to the document. Although this probably
// isn't dangerous, it's safer to validate.
static $icon_names;
if (!$icon_names) {
$icon_names = array_fuse(PHUIIconView::getFontIcons());
}
static $color_names;
if (!$color_names) {
$color_names = array_fuse(PHUIIconView::getFontIconColors());
}
if (empty($icon_names['fa-'.$icon])) {
$icon = 'paw';
}
$color = $options['color'];
if (empty($color_names[$color])) {
$color = null;
}
$icon_view = id(new PHUIIconView())
->setIconFont('fa-'.$icon, $color);
return $this->getEngine()->storeText($icon_view);
}
}
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