| Summary: | 碩士 === 國立臺灣大學 === 資訊工程研究所 === 84 === WWW browser is currently the most popular, general purpose tool
for network information retrieval. Under the driving force of
universal accessing of network resource and user friendly GUI,
WWW is taking the seat of new network application standard. By
way of implementaion, we investigate the standard functionality
of WWW browser, and its complexity involved in implementation.
The content covers from naming of network object, the
relationship among objects, access object using different
protocol, implementation of client cache, classification of
objects, formatting, rendering of objects, to forming sub-
windows that can communicate directly with user, etc. That is,
the way for a object from server store at remote site, to the
window on monitor at client host, is descrpited detailly. This
implementation construct a extensible HTML parser, can be
transformed to suit new standard easily. By defining a standard
of immediate memory image for HTML document, the operation of
parsing and formatting is seperated, which make the formatting
substitutable to have better rendering as better algorithm is
used. Beside the standard functionality of hypertext retrival
and and browsing, we provide ways to unify network resource
access, one using hypetext model, and another one does not use
hypertext model.
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