public function ReadmehelpMarkdown::convertSingleUnderscore in README Help 8

Replaces pairs of "_" signs by the em tag.

Parameters

string $text: The string to be filtered.

Return value

string The HTML source with emphasized text.

1 call to ReadmehelpMarkdown::convertSingleUnderscore()

ReadmehelpMarkdown::process in src/Plugin/Filter/ReadmehelpMarkdown.php

Performs the filter processing.

File

src/Plugin/Filter/ReadmehelpMarkdown.php, line 464

Class

ReadmehelpMarkdown

Provides a filter for markdown.

Namespace

Drupal\readmehelp\Plugin\Filter

Code

public function convertSingleUnderscore($text) {
  return preg_replace_callback('/(\\s)(_[^_]*?_)/', function ($matches) {
    $match = '';
    if ($match = !empty($matches[2]) ? $matches[2] : '') {
      $char = isset($matches[3]) ? $matches[3] : '';
      $match = "{$matches[1]}<em>" . str_replace('_', '', $match) . "</em>{$char}";
    }
    return $match;
  }, $text);
}