/**
 * setBoxType
 *
 * This snippet is used by PatternLab to set the appropriate classes for all Overview containers and rows.
 * It was created because the chunks where getting a bit swamped by output modifiers trying to do the same thing.
 *
 * The snippet looks at the chunk name that is set for the Overview being used.
 * If the name matches the case, the placeholders are populated with the values in that case.
 *
 * $box_type - The classes for the container (the overviewOuter chunks, found in Organisms)
 * $row_type - The wrapper chunk for the actual template (useful for managing HTML5 elements or creating link items)
 * $column_type - The class for each individual template (always closely tied to the class of the box_type)
 *
 * Be advised: the cases are read from top to bottom, until it finds a match. This means that all following cases will
 * not be processed, so always place input strings that contain the partial value of another string lower on the list!
 *
 * @author Hugo Peek
 */

$input = $modx->getOption('input', $scriptProperties, '');
$prefix = $modx->getOption('prefix', $scriptProperties, '');

switch($input) {
    case stripos($input,'LinkCard') !== false:
        $box_type = "centered link cards";
        $row_type = "link";
        $column_type = "card";
        break;
    case stripos($input,'Card') !== false:
        $box_type = "centered cards";
        $row_type = "";
        $column_type = "card";
        break;
    case stripos($input,'Segment') !== false:
        $box_type = "segments";
        $row_type = "segment";
        $column_type = "segment";
        break;
    case stripos($input,'ProjectTile') !== false:
        $box_type = "grid";
        $row_type = "";
        $column_type = "ui dimmable column [[+alias]] background";
        break;
    case stripos($input,'PersonTile') !== false:
        $box_type = "grid";
        $row_type = "";
        $column_type = "ui column [[+alias]] background";
        break;
    case stripos($input,'Item') !== false:
        $box_type = "items";
        $row_type = "";
        $column_type = "item";
        break;
    case stripos($input,'Compact') !== false:
        $box_type = "middle aligned list";
        $row_type = "";
        $column_type = "item";
        break;
    case stripos($input,'IconTop') !== false:
        $box_type = "centered grid";
        $row_type = "";
        $column_type = "center aligned column";
        break;
    case stripos($input,'Logo') !== false:
        $box_type = "centered middle aligned grid";
        $row_type = "";
        $column_type = "center aligned column logo";
        break;
    default:
        $box_type = "centered grid";
        $row_type = "";
        $column_type = "column";
        break;
}

$modx->toPlaceholder('box_type', $box_type, $prefix);
$modx->toPlaceholder('row_type', $row_type, $prefix);
$modx->toPlaceholder('column_type', $column_type, $prefix);
$modx->toPlaceholder('prefix', $prefix);
Source

/* setUserPlaceholders snippet */
$userId = $modx->getOption('userId', $scriptProperties, '');

// Get a specific user
$user = $modx->getObject('modUser', $userId);

// Get user profile and fail gracefully if user doesn't exist
if ($user) {
    $profile = $user->getOne('Profile');
} else {
    $modx->log(modX::LOG_LEVEL_ERROR, '[setUserPlaceholders] User not found in MODX');
    return;
}

// Get extended fields of this user
if ($profile) {
    $extended = $profile->get('extended');
    $modx->toPlaceholders($extended, '');
} else {
    $modx->log(modX::LOG_LEVEL_ERROR, '[setUserPlaceholders] Could not find profile for user: ' . $user->get('username'));
}
Source

/*
 * iconInputOptions
 * Based on fontAwesomeInputOptions, but modified to be used with Semantic UI.
 * MODX Snippet
 * @author YJ Tso @sepiariver
 * GPL, no warranties, etc.
 *
 * Usage: execute in TV input options, preferably with @CHUNK binding
 * alternatively install as Content Blocks input (link to repo coming soon)
 */

// source file
$cssUrl = $modx->getOption('cssUrl', $scriptProperties, 'https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css');
// scan options
$regexPrefix = $modx->getOption('regexPrefix', $scriptProperties, 'fa-');
// label text output options
$mode = $modx->getOption('mode', $scriptProperties, 'tv'); // can be 'tv' or 'cb'
$titleCaseLabels = $modx->getOption('titleCaseLabels', $scriptProperties, 1);
$operator = $modx->getOption('operator', $scriptProperties, '');
if (empty($operator)) {
    $operator = ($mode === 'cb') ? '=' : '==';
}
// value text output options
$outputPrefix = $modx->getOption('classPrefix', $scriptProperties, 'fa-');
// list output options
$separator = $modx->getOption('separator', $scriptProperties, '');
if (empty($separator)) {
    $separator = ($mode === 'cb') ? "\n" : '||';
}
$excludeClasses = array_filter(array_map('trim', explode(',', $modx->getOption('excludeClasses', $scriptProperties, 'ul,li'))));
// check cache
$cacheKey = $modx->getOption('cacheKey', $scriptProperties, 'fontawesomecsssource');
$provider = $modx->cacheManager->getCacheProvider('default');
$css = $provider->get($cacheKey);
if (!$css) {
    // get source file
    $css = file_get_contents($cssUrl);
    if ($css) {
        $provider->set($cacheKey, $css, 0);
    } else {
        $modx->log(modX::LOG_LEVEL_ERROR, '[iconInputOptions] could not get css source!');
        return '';
    }
}
// output
$output = array();
$regex = "/" . $regexPrefix . "([\w.]*)/";
if (preg_match_all($regex, $css, $matches)) {

    $icons = array_diff($matches[1], $excludeClasses);
    foreach($icons as $icon) {

        $label = ($titleCaseLabels) ? ucwords(str_replace('.', ' ', $icon)) : $icon;
        $icon = str_replace('.', ' ', $icon);
        $output[] = $label . $operator . $icon . $outputPrefix;
    }
}
return implode($separator, $output);
Source