Storing valid and invalid markup language in strict and relaxed tables respectively

Patent 6558431 Issued on May 6, 2003. Estimated Expiration Date:

September 11, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 151605 filed on 09/11/1998

US Classes:

715/513, Structured document (e.g., HTML, SGML, ODA, CDA)715/501.1, Hypermedia717/110, Editing717/112, Syntax based717/113Visual

Examiners

Primary: Hong, Stephen S.
Assistant: Paula, Cesar B

Attorney, Agent or Firm

Fulbright & Jaworski L.L.P.

International Class

G06F 015/00

Abstract

The inventive editor allows web authors to edit HTML visually while preserving the HTML source document. The editor preserves the structure and format of the HTML, and permits simultaneous modeless visual and source document editing. When an edit is made with the invention, only the HTML source around that edit is updated, rather than rewriting the whole HTML source document. Furthermore, when an edit is made, the new HTML source code is outputted in a format that is specified by the user. In order to preserve the format of the document, format information is stored in the parsed tree. The format of the node is preserved when its source is regenerated; edits to the node will reformat it according to user preferences. In order to preserve the structure of the document, invalid HTML structures are maintained and not corrected. The invention will either support the invalid structure by reflecting such structure in the parsed tree, and thus allow for editing of the structure, or the invention will not support such a structure, and represent such structures as invalid nodes. Moreover, the invention also maintains structure while editing, as the structure and format of the document is only minimally modified during editing, i.e. only the nodes affected by the edits are restructured and reformatted, and the remainder of the document is unmodified.

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