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harvest是一个下载html网页得机器人

These are supplementary data for SGML based summarizer:

HTML/           DTD for HTML 0, 1, 2, 3, 3.2, 4, HotJava, Netscape
IMS/            DTD for the Edgar database at town.hall.org
ISOlat1-no-convert.sgml
ISOlat1.sgml    ISO latin1 entity set for HTML
catalog         Entity mapping catalg

These directories contain additional DTD which can be used to add
support for more formats:

html/
html-3.2/
html-4.0/
html-4.01/
htmlplus/