luftwaffe
June 2nd, 2011, 10:38 AM
Hello There,
The following lines are from w3c.org, xhtml1 dtd file:
<!ELEMENT head (%head.misc;,
((title, %head.misc;, (base, %head.misc;)?) |
(base, %head.misc;, (title, %head.misc;))))>
<!ELEMENT table
(caption?, (col*|colgroup*), thead?, tfoot?, (tbody+|tr+))>
I am in the process of writing a DTD parser and am having a problem understanding those lines / finding any specification which properly describes how to interpret it.
What is the question mark for? What is the star for? What is the + for? Is there anybody out there having an idea how it supposed to work?
Thanks... :)
The following lines are from w3c.org, xhtml1 dtd file:
<!ELEMENT head (%head.misc;,
((title, %head.misc;, (base, %head.misc;)?) |
(base, %head.misc;, (title, %head.misc;))))>
<!ELEMENT table
(caption?, (col*|colgroup*), thead?, tfoot?, (tbody+|tr+))>
I am in the process of writing a DTD parser and am having a problem understanding those lines / finding any specification which properly describes how to interpret it.
What is the question mark for? What is the star for? What is the + for? Is there anybody out there having an idea how it supposed to work?
Thanks... :)