Interactively Restructuring HTML Documents

When editing Web pages, a user may desire to transform the documents as freely as with a word processor. But because Web documents must conform to a rigorous structure (defined by the HTML DTD), every transformation is not allowed and the editing system must perform some work to obtain valid HTML documents. This paper presents a solution to the problem of transforming the document structure in a HTML editor. A tool based on a transformation language is described. Techniques that have been designed for general structured documents have been adapted to take into account the specific structure of the HTML DTD.