The regexp is taken from the PHP Manual discussion, it was written by user "busbyjon".
http://www.php.net/manual/en/function.htmlentities.php#90111
public static encodeHtml ( string $string ) : string | ||
$string | string | string to encode. |
return | string |
/** * Reference pages is usually one or two pages for items such as Table of Contents, reference lists, Author notes or Acknowledgements. * These do not show up in the regular navigation list. * * As they are supposed to be short. * * @param string $pageName Name of the chapter, will be use din the TOC * @param string $fileName Filename to use for the chapter, must be unique for the book. * @param string $pageData Page content in XHTML. File should NOT exceed 250kB. * @param string $reference Reference key * @param int $externalReferences How to handle external references. See documentation for <code>processChapterExternalReferences</code> for explanation. Default is EPub::EXTERNAL_REF_IGNORE. * @param string $baseDir Default is "", meaning it is pointing to the document root. NOT used if $externalReferences is set to EPub::EXTERNAL_REF_IGNORE. * * @return bool $success */ function addReferencePage($pageName, $fileName, $pageData, $reference, $externalReferences = EPub::EXTERNAL_REF_IGNORE, $baseDir = "") { if ($this->isFinalized) { return false; } $fileName = RelativePath::getRelativePath($fileName); $fileName = preg_replace('#^[/\\.]+#i', "", $fileName); if (!empty($pageData) && is_string($pageData)) { if ($this->encodeHTML === true) { $pageData = StringHelper::encodeHtml($pageData); } $this->wrapChapter($pageData); if ($externalReferences !== EPub::EXTERNAL_REF_IGNORE) { $htmlDirInfo = pathinfo($fileName); $htmlDir = preg_replace('#^[/\\.]+#i', "", $htmlDirInfo["dirname"] . "/"); $this->processChapterExternalReferences($pageData, $externalReferences, $baseDir, $htmlDir); } $this->addFile($fileName, "ref_" . $reference, $pageData, "application/xhtml+xml"); if ($reference !== Reference::TABLE_OF_CONTENTS || !isset($this->ncx->referencesList[$reference])) { $this->opf->addItemRef("ref_" . $reference, false); $this->opf->addReference($reference, $pageName, $fileName); $this->ncx->referencesList[$reference] = $fileName; $this->ncx->referencesName[$reference] = $pageName; } return true; } return true; }