getChildrenAsString()); $pre_content = str_replace(array('
', ''), '', $pre_content); /* * Checking for the code tag. * Usually pre tags are used along with code tags. This conditional will check for already converted code tags, * which use backticks, and if those backticks are at the beginning and at the end of the string it means * there's no more information to convert. */ $firstBacktick = strpos(trim($pre_content), '`'); $lastBacktick = strrpos(trim($pre_content), '`'); if ($firstBacktick === 0 && $lastBacktick === strlen(trim($pre_content)) - 1) { return $pre_content . "\n\n"; } // If the execution reaches this point it means it's just a pre tag, with no code tag nested // Empty lines are a special case if ($pre_content === '') { return "```\n```\n\n"; } // Normalizing new lines $pre_content = preg_replace('/\r\n|\r|\n/', "\n", $pre_content); // Ensure there's a newline at the end if (strrpos($pre_content, "\n") !== strlen($pre_content) - strlen("\n")) { $pre_content .= "\n"; } // Use three backticks return "```\n" . $pre_content . "```\n\n"; } /** * @return string[] */ public function getSupportedTags() { return array('pre'); } }