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Re: [xsl] Sorting and Merge
Subject: Re: [xsl] Sorting and Merge From: Dongling Ding <dling61@xxxxxxxxx> Date: Mon, 17 Nov 2003 11:44:53 -0800 (PST) |
Thank Dimitre, Let me give a clearer description of the problem. We have a member structure and allow users to define filters based on it. We can generate the result after applying those filters. But the problem is that result is messed up since the filter was applied sequentially. Here is an example of the original member structure. The actual structure can be very deep in terms of hierarchy. <MemberList> <Member name="P1"> <Member name="P11"> <Member name="P111"/> </Member> <Member name="P12"> <Member name="P121"/> </Member> </Member> <Member name="P2"> <Member name="P21"/> <Member name="P22"/> </Member> </MemberList> Here there are three filers created by user: 1. select the member name "P121" and its ancestors. They are P121, P12, and P1. 2. select the member name "P2" and its children. They are P2, P21, and P22. 2. select the member name "P1" and its children. So, P1, P11, and P21, After those filters are applied sequentially, we got the following result, but it contains duplicated members and order of members is not the same as original one. <MemberList> <Member name="P1"> <Member name="P12"> <Member name="P121"/> </Member> </Member> <Member name="P2"> <Member name="P21"/> <Member name="P22"/> </Member> <Member name="P1"> <Member name="P11"/> <Member name="P12"/> </Member> </MemberList> Therefore, the transformation requirement is to merge and reorder the above result based on the original member structure. Dimitre suggested earlier to add one attribute "_pos" to indicate the member position in the above result. It looks like this: <Member _pos="1" name="P1"/> It helps when we have one or two levels. But we need to go down each level and figure out the position(recursive)and get rid of duplicate members. This transformation seems doing merge and sorting. Please help me on this! Thanks Dongling __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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