Presenting and Highlighting Documents

Typically, a query application enables the user to view the documents returned by a query. The user selects a document from the hitlist, and then the application presents the document in some form.

With Oracle Text, you can display a document in different ways, such as highlighting either the words of a word query or the themes of an ABOUT query in English.

You can also obtain gist (document summary) and theme information from documents with the CTX_DOC PL/SQL package. Table 8-2 describes the different output you can obtain and which procedure to use to obtain each type.

Table 2 CTX_DOC Output

Output	Procedure
Plain-text version, no highlights	CTX_DOC.FILTER
HTML version of document, no highlights	CTX_DOC.FILTER
Highlighted document, plain-text version	CTX_DOC.MARKUP
Highlighted document, HTML version	CTX_DOC.MARKUP
Highlighted offset information for plain-text version	CTX_DOC.HIGHLIGHT
Highlighted offset information for HTML version	CTX_DOC.HIGHLIGHT
Theme summaries and gist of document	CTX_DOC.GIST
List of themes in document	CTX_DOC.THEMES

See Also: Oracle Text Reference