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<?php
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/**
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* @file
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* Functions for handling CDM TaggedText arrays
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*
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*
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* @copyright
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* (C) 2007-2018 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this module are subject to the Mozilla
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* Public License Version 1.1.
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* @see http://www.mozilla.org/MPL/MPL-1.1.html
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*
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* @author
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* - Andreas Kohlbecker <a.kohlbecker@BGBM.org>
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*/
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function tagged_text_new($tag_type, $text = null){
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$tt = new stdClass();
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$tt->type = $tag_type;
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$tt->text = $text;
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return $tt;
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}
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/**
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* Walks the passed TaggedText array to find all elements which have a
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* TaggedText->entityReference. For each of these the taggedTexts is loaded
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* from the webservice and the original entry in the TaggedText array will be
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* replaced by the newly loaded array.
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*
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* @param array $taggedtxt
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* The original TaggedText array
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* @param array $skiptags
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* Optional list of tag names to skip
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* @return array
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* The new tagged text with all TaggedText->entityReference objects expanded
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*/
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function cdm_tagged_text_expand_entity_references(array $taggedtxt, $skiptags = array()) {
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$tagged_text_expanded = array();
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foreach ($taggedtxt as $tt) {
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if (isset($tt->entityReference) && !in_array($tt->type, $skiptags)) {
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$base_uri = cdm_ws_base_uri($tt->entityReference->type);
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if($base_uri){
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$tagged_text_method = "/taggedText";
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if($base_uri == CDM_WS_NAME){
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$tagged_text_method = "/taggedName";
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}
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$referenced_tt = cdm_ws_get($base_uri . "/" . $tt->entityReference->uuid . $tagged_text_method);
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if($referenced_tt){
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$tagged_text_expanded = array_merge($tagged_text_expanded, $referenced_tt);
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continue;
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}
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}
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}
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// default case
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$tagged_text_expanded[] = $tt;
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}
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return $tagged_text_expanded;
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}
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/**
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* Converts an array of TaggedText items into corresponding html tags.
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*
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* Each item is provided with a class attribute which is set to the key of the
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* TaggedText item.
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*
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* Tagged text where the type starts with 'PLACEHOLDER_' will be added to the markup as plain text whereas the
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* taggedText->type wrapped in curly brackets: '{'. $tt->text . '}' is used as text.
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* see tagged_text_extract_secref()
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*
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* The algorithm of this functions is basically the same as for
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* eu.etaxonomy.cdm.strategy.cache.TaggedCacheHelper.createString(List<TaggedText> tags, HTMLTagRules htmlRules)
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*
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* @param array $taggedtxt
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* Array with text items to convert.
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* @param array $skiptags
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* Array of tag names to skip
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*
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* @return string
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* The markup.
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*/
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function cdm_tagged_text_to_markup(array $taggedtxt, $skiptags = array(), $tag = 'span') {
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$out = '';
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$was_separator = false;
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$last_type = null;
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$i = 0;
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foreach ($taggedtxt as $tt) {
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if (!in_array($tt->type, $skiptags) && $tt->text) {
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if(isset($tt->entityReference)){
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$class_attr = $tt->type . " " . html_class_attribute_ref($tt->entityReference);
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} else {
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$class_attr = $tt->type;
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}
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$is_first = $i == 0;
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$is_separator = is_tagged_text_sepatator_type($tt->type);
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if(str_beginsWith($tt->type, 'PLACEHOLDER_')){
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$out .= '{'. $tt->type . '}';
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} else {
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if(($last_type && $last_type != $tt->type) && $tag) {
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$out .= '</' . $tag . '>';
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}
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if((!$last_type || $last_type != $tt->type) && $tag){
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$out .= '<' . $tag . ' class="' . $class_attr . '">';
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}
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if(!$is_separator && !$was_separator && !$is_first){
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$out .= " ";
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}
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$out .= t('@text', array('@text' => $tt->text));
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$was_separator = $is_separator;
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$last_type = $tt->type;
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}
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}
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$i++;
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}
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if($tag) {
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$out .= '</' . $tag . '>';
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}
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return $out;
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}
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/**
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* Converts an array of TaggedText items into corresponding plain text string
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*
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* Each item is provided with a class attribute which is set to the key of the
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* TaggedText item.
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*
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* The algorithm of this functions is basically the same as for
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* eu.etaxonomy.cdm.strategy.cache.TaggedCacheHelper.createString(List<TaggedText> tags)
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*
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* @param array $taggedtxt
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* Array with text items to convert.
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* @param array $skiptags
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* Array of tag names to skip
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*
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* @return string
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* The plain text
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*/
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function cdm_tagged_text_to_string(array $taggedtxt, $skiptags = array()) {
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return cdm_tagged_text_to_markup($taggedtxt, $skiptags, null);
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}
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/**
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* See cdmlib: boolean eu.etaxonomy.cdm.strategy.cache.TagEnum.isSeparator();
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*
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* @return bool
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*/
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function is_tagged_text_sepatator_type($tagged_text_type){
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static $separator_names = array('separator', 'postSeparator');
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$result = array_search($tagged_text_type, $separator_names) !== false;
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return $result;
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}
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/**
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* Finds the text tagged with $tag_type in an array of taggedText instances.
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*
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*
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* @param array $taggedtxt
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* Array with text items.
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* @param array $include_tag_types
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* Array of the tag types for which to find text items in the $taggedtxt array, or NULL
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* to return all texts.
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*
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* @return array
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* An array with the texts mapped by $tag_type.
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*/
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function cdm_tagged_text_values(array $taggedtxt, $include_tag_types = NULL) {
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$tokens = array();
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if (!empty($taggedtxt)) {
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foreach ($taggedtxt as $tagtxt) {
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if ($include_tag_types === NULL || array_search($tagtxt->type, $include_tag_types) !== false) {
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$tokens[] = $tagtxt->text;
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}
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}
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}
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return $tokens;
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}
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/**
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* Preprocess the taggedTitle arrays.
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*
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* Step 1: Turns 'newly' introduces tag types ("hybridSign")
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* into tag type "name"
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*
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* Step 2: Two taggedTexts which have the same type and which have
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* a separator between them are merged together.
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*
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* @param array $taggedTextList
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* An array of TaggedText objects
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*/
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function normalize_tagged_text(&$taggedTextList) {
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if (is_array($taggedTextList)) {
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// First pass: rename.
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for ($i = 0; $i < count($taggedTextList); $i++) {
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if ($taggedTextList[$i]->type == "hybridSign") {
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$taggedTextList[$i]->type = "name";
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}
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}
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// Second pass: resolve separators.
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$taggedNameListNew = array();
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for ($i = 0; $i < count($taggedTextList); $i++) {
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// elements of the same type concatenated by a separator should be merged together
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if (isset($taggedTextList[$i + 2]) && $taggedTextList[$i + 1]->type == "separator" && $taggedTextList[$i]->type == $taggedTextList[$i + 2]->type) {
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$taggedName = clone $taggedTextList[$i];
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$taggedName->text = $taggedName->text . $taggedTextList[$i + 1]->text . $taggedTextList[$i + 2]->text;
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$taggedNameListNew[] = $taggedName;
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++$i;
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++$i;
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continue;
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}
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// no special handling
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$taggedNameListNew[] = $taggedTextList[$i];
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}
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$taggedTextList = $taggedNameListNew;
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}
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}
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/**
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* Extracts the tagged text for sec references with separator and citation detail from a tagged text array.
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* @param $tagged_text
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* The tagged text to operate on
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* @param string $ref_tag_type
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* The tagtype for a secreference is "secReference", but "relSecReference" is also used in case of relationships.
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* @param bool $replace_with_placeholder
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* Indicates the method to add a empty placeholder tagged text alement as relpacement for the extrated tagged text
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* elements.
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* @return array
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*/
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function tagged_text_extract_secref(&$tagged_text, $ref_tag_type = "secReference", $replace_with_placeholder = false) {
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$extracted_tt = array();
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if (is_array($tagged_text)) {
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$extract_pos = null;
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for ($i = 0; $i < count($tagged_text) - 1; $i++) {
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if ($tagged_text[$i + 1]->type == $ref_tag_type && $tagged_text[$i]->type == "separator"){
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$extracted_tt[0] = $tagged_text[$i];
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$extracted_tt[1] = $tagged_text[$i + 1];
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if($replace_with_placeholder){
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// text must not be null, see cdm_tagged_text_to_markup()
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$tagged_text[$i] = tagged_text_new("PLACEHOLDER_" . $ref_tag_type, "PLACEHOLDER_" . $ref_tag_type);
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} else {
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unset($tagged_text[$i]);
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}
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unset($tagged_text[$i + 1]);
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// also get the microreference which could be in $tagged_text[$i + 3]
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if(isset($tagged_text[$i + 3]) && $tagged_text[$i + 2]->type == "separator" && $tagged_text[$i + 3]->type == "secMicroReference"){
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$extracted_tt[2] = $tagged_text[$i + 2];
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$extracted_tt[3] = $tagged_text[$i + 3];
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unset($tagged_text[$i + 2]);
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unset($tagged_text[$i + 3]);
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}
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break;
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}
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}
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}
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$tagged_text = array_values($tagged_text); // re-index array to make it continuous again
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return $extracted_tt;
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}
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function tagged_text_extract_nomstatus(&$tagged_text) {
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$extracted_tt = array();
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if (is_array($tagged_text)) {
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for ($i = 0; $i < count($tagged_text) - 1; $i++) {
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if ($tagged_text[$i]->type == "nomStatus"){
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$extracted_tt[] = $tagged_text[$i];
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if(isset($tagged_text[$i + 1]) && $tagged_text[$i + 1]->type == "postSeparator"){
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$extracted_tt[] = $tagged_text[$i + 1];
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unset($tagged_text[$i + 1]);
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}
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if ($tagged_text[$i - 1]->type == "separator"){
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array_unshift($extracted_tt, $tagged_text[$i - 1]);
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unset($tagged_text[$i - 1]);
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}
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unset($tagged_text[$i]);
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break;
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}
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}
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}
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$tagged_text = array_values($tagged_text); // re-index array to make it continuous again
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return $extracted_tt;
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}
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function tagged_text_extract(&$tagged_text, $type, $replace_with_placeholder = false) {
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$matching_elements = array();
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if (is_array($tagged_text)) {
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for ($i = 0; $i < count($tagged_text) - 1; $i++) {
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if($tagged_text[$i]->type == $type){
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$matching_elements[] = $tagged_text[$i];
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if($replace_with_placeholder){
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// text must not be null, see cdm_tagged_text_to_markup()
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$tagged_text[$i] = tagged_text_new("PLACEHOLDER_" . $type, "PLACEHOLDER_" . $type);
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} else {
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unset($tagged_text[$i]);
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}
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}
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}
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}
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$tagged_text = array_values($tagged_text); // re-index array to make it continuous again
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return $matching_elements;
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}
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function find_tagged_text_elements(&$tagged_text, $type){
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$matching_elements = array();
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if (is_array($tagged_text)) {
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for ($i = 0; $i < count($tagged_text) - 1; $i++) {
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if($tagged_text[$i]->type == $type){
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$matching_elements[] = $tagged_text[$i];
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}
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}
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}
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return $matching_elements;
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}
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