https://github.com/PresKhaled/epubx

[PresKhaled]

This version has been added some simple features to it, as follows: -

• Added [EpubLanguageRelatedAttributes] to certain classes (EpubMetadataDescription, EpubMetadataPublisher, EpubMetadataRight) and will be filled during the processing of some meta items to support the xml:lang, and dir attributes. [PackageReader].readMetadata > result.MetaItems are now filled in before iterating over the children of [metadataNode].
• Added support for the specification of ePub 3.0 for the element's creator and contributor.

• Types of titles were collected instead of one title, to be processed in the application that uses the package.

  • To provide processing: Main, subtitle, short, collection, edition and expanded. Example of the process:

    
    final epubx.EpubMetadataTitle primaryTitle = (titles.firstWhereOrNull(
    (epubx.EpubMetadataTitle? titleElement) {
    final epubx.EpubMetadataMeta? associatedMeta = _getMetaAssociatedWithTitle(
      metaItems: epubMetadata.MetaItems,
      titleElement: titleElement,
    );
    
    if (associatedMeta != null && associatedMeta.Scheme == null) {
      return (associatedMeta.Content == 'main');
    }
    
    return false;
    },
    ) ??
    titles.first);

final epubx.EpubMetadataTitle? subtitle = titles.firstWhereOrNull( (epubx.EpubMetadataTitle? titleElement) { final epubx.EpubMetadataMeta? associatedMeta = _getMetaAssociatedWithTitle( metaItems: epubMetadata.MetaItems, titleElement: titleElement, );

    if (associatedMeta != null && associatedMeta.Scheme == null) {
      return (associatedMeta.Content == 'subtitle');
    }

    return false;
  },
);

static epubx.EpubMetadataMeta? _getMetaAssociatedWithTitle({ required List? metaItems, required epubx.EpubMetadataTitle? titleElement, }) { return metaItems?.firstWhereOrNull( (meta) => (meta.Refines == '#${titleElement?.Id}' && (meta.Property == 'title-type')), ); }

**The data coming from the package can be transferred to classes and stored as it is in a database that accepts this matter.**
**I do not like to use Pull Requests permanently.**