function colorbox_gallery_custom_validate

Validate function for colorbox_gallery_custom.

1 string reference to 'colorbox_gallery_custom_validate'

colorbox_field_formatter_settings_form in ./colorbox.module

Implements hook_field_formatter_settings_form().

File

./colorbox.module, line 462

Code

function colorbox_gallery_custom_validate($element, &$form_state) {
    if (!empty($element['#value']) && !preg_match('!^[a-z0-9_-]+$!', $element['#value'])) {
        form_error($element, t('%name must only contain lowercase letters, numbers, hyphen and underscores.', array(
            '%name' => $element['#title'],
        )));
    }
}