For details on schemas.xml, including editing it so that you do not need to set the schema for each of your XHTML5 documents, see the jEdit XML plugin help. JEdit creates a schemas.xml file in the same directory as your XHTML5 document. I also chose to click 'make this location relative (preview bellow)' (sic).Choose the xhtml5_with_microdata.xsd file from the downloaded repository.In jEdit, set the schema for your XHTML5 document:.Other schemas for XHTML5 are also available. Note the caveat in the repository readme about data-* attributes. This stops jEdit looking for that nonexistent DTD.ĭownload the XHTML5 schema from the GitHub repository arasix/XHTML5-XML-Schema. Insert the string :-dtd=true: in a comment in the first 10 lines of your XHTML5 file. The following procedure assumes that you have already installed jEdit with the XML plugin. In jEdit, associate the XHTML5 schema with your XHTML5 document.Insert :-dtd=true: in a comment in the first 10 lines of your XHTML5 to prevent jEdit DTD parsing.If you only want to check that your XHTML5 is well-formed, but not necessarily valid, then, yes, as you say, you don't need either a DTD or a schema, and you can ignore most of this answer: just insert the string :-dtd=true: in a comment in one of the top 10 lines of your XHTML5 document.

If you want to validate XHTML5 in jEdit using the XML plugin, then you need either a DTD or a schema. For details, see the description of 'permitted-public-ID-system-ID-combination' on the W3C web page ' HTML syntax'. triggers jEdit's DTD-based parsing, but doesn't provide enough information to locate a corresponding DTD.

Why doesn't jEdit+Sidekick like my simple, standards-compliant XHTML5 file?īut how do I get rid of all those errors? If I change the parser to html then I don't get any errors - but I don't get any DOM tree representation or auto-suggest either. The Sidekick outline looks cool, and the popup suggesting the element and attribute names is nice.īut how do I get rid of all those errors? I don't need or want a DTD. Immediately I get an error list, saying: Element type 'html' must be declared. I installed jEdit 5.3.0 with the XML Sidekick plugin. So the file extension is xhtml and the file starts with: Īll this is completely standard stuff. That just means that I'm creating an HTML5 document, but I want all the ending tags to be present and I want appropriate encoding, etc.

Validate xml in jedit