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From "Alexander Kiel (JIRA)" <j...@apache.org>
Subject [jira] Created: (TAP5-1040) Allow HTML5 doctype to be printed
Date Wed, 03 Mar 2010 14:46:27 GMT
Allow HTML5 doctype to be printed

                 Key: TAP5-1040
                 URL: https://issues.apache.org/jira/browse/TAP5-1040
             Project: Tapestry 5
          Issue Type: Improvement
          Components: tapestry-core
    Affects Versions:, 5.2.0
            Reporter: Alexander Kiel
            Priority: Minor

According to the HTML5 Working Draft [1], the doctype to be used in the case you are using
the HTML syntax is:

<!DOCTYPE HTML> case-insensitive

Unfortunately the class org.apache.tapestry5.dom.DTD doesn't allow doctypes with empty public
and system identifier. It is also not possible to output the DOCTYPE legacy string <!DOCTYPE
HTML SYSTEM "about:legacy-compat">, because some parser internal to Tapestry tries to resolve
the system identifier. The best thing, I was able to output is the full HTML 4.01 strict doctype:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

It is allowed in HTML5 as obsolete permitted DOCTYPE string, but not desired.

It would be very simple to allow for what empty HTML5 doctype in org.apache.tapestry5.dom.DTD.

[1]: http://www.w3.org/TR/2010/WD-html5-20100304/

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