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Thanks John; that information is helpful.<BR>
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So extended filtering is the only option for compatibility.<BR> <BR>I still need to research which search engines use extended filtering, however.<BR> <BR>Maybe Frank (Ellerman) will have something to say on this; can we just wait for his input? --Or else for some feedback from people who know more about the search engines. <BR> <BR>Thanks again.<BR> <BR>Best wishes,<BR> <BR>C. E. Whitehead<BR><A href="mailto:cewcathar@hotmail.com">cewcathar@hotmail.com</A><BR><BR><BR><BR><BR>> Date: Sat, 3 Jan 2009 16:06:04 -0500<BR>> From: cowan@ccil.org<BR>> <BR>> CE Whitehead scripsit:<BR>> <BR>> > (1), basic and extended filtering should normally be backwards<BR>> > compatible--that is a request for "cpe" should yield "cpe-Latn"<BR>> > as well;but what about a request for "cpe-PG" (will it return<BR>> > "cpe-Latn-PG"?)<BR>> <BR>> Basic filtering will not; extended filtering will. That is part of the<BR>> point of extended filtering.<BR>Thanks very much. <BR>So this is the only way these are backwards compatible. I'd have to learn a bit more about the various applications and types of filtering used.<BR>> <BR>> > (2), lookup type filtering, on the other hand, when "cpe-PG" is<BR>> > requested, will return "cpe;" but will it return "cpe-Latn" or return<BR>> > "cpe-Latn-PG"?<BR>> <BR>> No.<BR> <BR>Oops.<BR>> <BR>> -- <BR>> John Cowan http://ccil.org/~cowan cowan@ccil.org<BR>> There are books that are at once excellent and boring. Those that at<BR>> once leap to the mind are Thoreau's Walden, Emerson's Essays, George<BR>> Eliot's Adam Bede, and Landor's Dialogues. --Somerset Maugham<BR><BR><BR></body>
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