protected function MarkdownExtra::doExtraAttributes in Markdown 7

* Parse attributes caught by the $this->id_class_attr_catch_re expression * and return the HTML-formatted list of attributes. * * Currently supported attributes are .class and #id. * * In addition, this method also supports supplying a default Id value, * which will be used to populate the id attribute in case it was not * overridden. *

Parameters

string $tag_name: * @param string $attr * @param mixed $defaultIdValue * @param array $classes * @return string

6 calls to MarkdownExtra::doExtraAttributes()

MarkdownExtra::_doAnchors_inline_callback in includes/MarkdownExtra.php

* Callback for inline anchors *

MarkdownExtra::_doFencedCodeBlocks_callback in includes/MarkdownExtra.php

* Callback to process fenced code blocks *

MarkdownExtra::_doHeaders_callback_atx in includes/MarkdownExtra.php

* Callback for atx headers *

MarkdownExtra::_doHeaders_callback_setext in includes/MarkdownExtra.php

* Callback for setext headers *

MarkdownExtra::_doImages_inline_callback in includes/MarkdownExtra.php

* Callback for inline images *

... See full list

File

includes/MarkdownExtra.php, line 198

Class

MarkdownExtra

Markdown Extra Parser Class

Namespace

Michelf

Code

protected function doExtraAttributes($tag_name, $attr, $defaultIdValue = null, $classes = array()) {
  if (empty($attr) && !$defaultIdValue && empty($classes)) {
    return "";
  }

  // Split on components
  preg_match_all('/[#.a-z][-_:a-zA-Z0-9=]+/', $attr, $matches);
  $elements = $matches[0];

  // Handle classes and IDs (only first ID taken into account)
  $attributes = array();
  $id = false;
  foreach ($elements as $element) {
    if ($element[0] == '.') {
      $classes[] = substr($element, 1);
    }
    else {
      if ($element[0] == '#') {
        if ($id === false) {
          $id = substr($element, 1);
        }
      }
      else {
        if (strpos($element, '=') > 0) {
          $parts = explode('=', $element, 2);
          $attributes[] = $parts[0] . '="' . $parts[1] . '"';
        }
      }
    }
  }
  if (!$id) {
    $id = $defaultIdValue;
  }

  // Compose attributes as string
  $attr_str = "";
  if (!empty($id)) {
    $attr_str .= ' id="' . $this
      ->encodeAttribute($id) . '"';
  }
  if (!empty($classes)) {
    $attr_str .= ' class="' . implode(" ", $classes) . '"';
  }
  if (!$this->no_markup && !empty($attributes)) {
    $attr_str .= ' ' . implode(" ", $attributes);
  }
  return $attr_str;
}