/usr/share/doc/libtagsoup-java/api/org/ccil/cowan/tagsoup/class-use/ is in libtagsoup-java-doc 1.2.1-1.
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/usr/share/doc/libtagsoup-java/api/org/ccil/cowan/tagsoup/class-use/AttributesImpl.html
/usr/share/doc/libtagsoup-java/api/org/ccil/cowan/tagsoup/class-use/AutoDetector.html
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