EDIT

  /**

   * Provides the feature block settings for a specific feature which matches the $feature_uuid parameter.

   *

   * In case specifically configured settings array, like these which are stored in the drupal variables, is missing

   * one or more fields these fields are taken from the default. That is the specific settings are always merges

   * with the default.

   *

   * Note: These settings only apply to feature blocks which do not have a special rendering

   * the specially handled features (e.g.: Distribution, CommonNames) may make use of the

   * 'special' element of the settings

   *

   * @param $feature_uuid

   *   The uuid string representation of the feature to return the settings for

   *

   * @return array

   *  an associative array of settings, with the following fields:

   *    - as_list: string

   *        this setting will be used in compose_feature_block_wrap_elements() as $enclosing_tag

   *        possible values are:

   *          div: not as list,

   *          ul: as bullet list,

   *          ol: as numbered list,

   *          dl: as definition list

   *        The tag used for the inner element, thus depends on the value of this field. The

   *        inner tag name can be retrieved by the function cdm_feature_block_element_tag_name()

   *    - link_to_reference: boolean,

   *        render the reference as link, ignored if the element is NOT a DescriptionElementSource

   *    - link_to_name_used_in_source": boolean

   *        whether to show name in source information as link which will point to the according name page

   *    - sources_as_content (boolean)

   *        TRUE (int: 1):

   *          1. If element is of the CDM type TextData and the text is not empty the source references will be

   *             appended in brackets like "text (source references)". If the original source has name in source

   *             information it will be appended to the citation string,

   *             like : "(citation, as name in source; citation, as name in source)"

   *          2. if the text of the TextData is empty, the original source citations are the only content

   *             (e.g. use case CITATION) and are not put into brackets. In this case the nameInSource is

   *             prepended to the citation string like: "name in source: citation"

   *        FALSE (int: 0):

   *          Original sources are put into the bibliography(=references) pseudo feature block. If the original source

   *          citations are the only content, the resulting feature block content would only consist of footnotes.

   *          In this case the display of the respective feature block is suppressed.

   *          TODO if the bibliography is not enabled the sources will be treated as footnotes like annotations,

   *               in future however they will in this case be shown in a separate references section for each

   *               feature block.

   *    - sources_as_content_to_bibliography  (boolean)

   *        Only valid if sources_as_content == TRUE, will cause the sources to be also shown

   *        in the bibliography.

   *    - sort_elements

   *        whether and how to sort the elements

   *        possible values are the constants SORT_ASC, SORT_DESC, NULL,

   *        some feature types (Distribution) also support: SORT_HIERARCHICAL (

   *        TODO option to exclude levels, put in special?,

   *        TODO make use of this setting in compose_feature_block_wrap_elements())

   *    - element_tag

   *        specifies the tag to be used for creating the elements, only applies if "as_list" == 'div'

   *        possible values are span | div. the proper inner tag name can be retrieved by the function

   *        cdm_feature_block_element_tag_name()

   *    - special: array()

   *        an array with further settings, this field can be used for special

   *        settings for specialized rendering like for distributions

   *  }

   *

   */

  function get_feature_block_settings($feature_uuid = 'DEFAULT') {

    // the default must conform to the default parameter values of

    // compose_feature_block_wrap_elements() : $glue = '', $sort = FALSE, $enclosing_tag = 'ul'

    // compose_description_element_text_data() : asListElement = NULL

    // see #3257 (implement means to define the features to show up in the taxonprofile and in the specimen descriptions)

    // ---- DEFAULTS settings

    // only needed as final option, when the settings are not having a default

    $default = array(

      'DEFAULT' => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => NULL

      ),

      // settings for pseudo feature bibliography

      // only hard coded here

      'BIBLIOGRAPHY' => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => NULL

      )

    );

    // will be used as preset in the settings

    $other_themes_default = array(

      'DEFAULT' => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => NULL

      ),

      UUID_CITATION => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 0,

        'sources_as_content' => 1,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => SORT_ASC,

        'glue' => '',

        'element_tag' => 'div'

      ),

      UUID_DISTRIBUTION => array(

        'as_list' => 'div', // currently ignored

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 0,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT, // will cause ...

        'glue' => '',

        'element_tag' => 'div',

        'special' => array()

      ),

      UUID_COMMON_NAME => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => 'span'

      ),

    );

    // ---- Special DEFAULTS for existing portals

    // TODO:

    // this can be removed once the feature block

    // settings have been deployed for the first time to these portals

    $cichorieae_default = array(

      'DEFAULT' => array(

        'as_list' => 'div',

        'link_to_reference' => 1,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 1,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => 'div'

      ),

      UUID_CITATION => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 0,

        'sources_as_content' => 1,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => SORT_ASC,

        'glue' => '',

        'element_tag' => 'div'

      ),

      UUID_CHROMOSOMES_NUMBERS => array(

        'as_list' => 'ul',

        'link_to_reference' => 1,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 1,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => 'div'

      ),

      UUID_CHROMOSOMES => array(

        'as_list' => 'ul',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 1,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => 'div'

      ),

      UUID_COMMON_NAME => array(

        'as_list' => 'div',

        'link_to_reference' => 0,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 0,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => 'span'

      ),

    );

    $palmweb_default = array(

      'DEFAULT' => array(

        'as_list' => 'ul',

        'link_to_reference' => 1,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 1,

        'sources_as_content_to_bibliography' => 1,

        'sort_elements' => NO_SORT,

        'glue' => '',

        'element_tag' => NULL

      ),

      UUID_CITATION => array(

        'as_list' => 'ul',

        'link_to_reference' => 1,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 0,

        'sources_as_content_to_bibliography' => 1,

        'sort_elements' => SORT_ASC,

        'glue' => '',

        'element_tag' => 'div'

      ),

      UUID_DISTRIBUTION => array(

        'as_list' => 'div', // currently ignored

        'link_to_reference' => 1,

        'link_to_name_used_in_source' => 1,

        'sources_as_content' => 1, // FIXME seems to have no effect see Acanthophoenix rousselii (palmae)

        'sources_as_content_to_bibliography' => 1,

        'sort_elements' => NO_SORT, // will cause ...

        'glue' => ', ',

        'element_tag' => 'span',

        'special' => array()

      ),

    );

    $cyprus_default = $cichorieae_default;

    $cyprus_default[UUID_DISTRIBUTION] = array(

      'glue' => ' ',

    );

    $default_theme = variable_get('theme_default', NULL);

    switch ($default_theme) {

      case 'garland_cichorieae':

        $settings_for_theme = $cichorieae_default;

        break;

      case 'cyprus':

        // cyprus: no longer used in production,

        // but is required for selenium tests see class eu.etaxonomy.dataportal.pages.PortalPage

        $settings_for_theme = $cyprus_default;

        break;

      case 'flore_afrique_centrale':

      case 'flora_malesiana':

      case 'flore_gabon':

        $settings_for_theme = $cichorieae_default;

        $settings_for_theme[UUID_CITATION]['as_list'] = 'ul';

        break;

      case 'palmweb_2':

        $settings_for_theme = $palmweb_default;

        break;

      default:

        $settings_for_theme = $other_themes_default;

    }

    // add pseudo feature settings

    $settings_for_theme['BIBLIOGRAPHY'] = $default['BIBLIOGRAPHY'];

    // ---- END of DEFAULTS

    $saved_settings = variable_get(FEATURE_BLOCK_SETTINGS, NULL);

    $feature_block_setting = null;

    if (isset($saved_settings[$feature_uuid])) {

      $feature_block_setting = $saved_settings[$feature_uuid];

    }

    else if (isset($settings_for_theme[$feature_uuid])) {

      $feature_block_setting = $settings_for_theme[$feature_uuid];

    }

    else if (isset($settings_for_theme['DEFAULT'])) {

      $feature_block_setting = $settings_for_theme['DEFAULT'];

    }

    // now merge the default and specific settings

    $settings_to_merge = array($default['DEFAULT']);

    if(is_array($saved_settings)){

      $settings_to_merge[] = $saved_settings['DEFAULT'];

    }

    if(isset($feature_block_setting)){

      $settings_to_merge[] = $feature_block_setting;

    }

    $feature_block_setting = drupal_array_merge_deep_array($settings_to_merge);

    return $feature_block_setting;