Subject: Re: Oft-encountered formatting problem From: hanche+dsssl-l@xxxxxxxxxxxx Date: 26 May 1997 12:35:56 -0000 |
- Frank Christoph <christo@xxxxxxxxxxxxxxxxxx> | Hello DSSSL programmers, | | There is a problem I have encountered more than once when trying to format | SGML or SGML-like data in order to emulate the results of older, mostly ad-hoc | formatting methods. The problem is that structure of the formatted document | does not match the element structure of the SGML document. For example, | the data might look like this: | | <SEC> | <COMPANY>Big-Time Do-Nothing Company</COMPANY> | <DESC>We charge lots of money for things you can do yourself.</DESC> | <MAINOFFICE>BTDN 666 Big Blvd., New York</MAINOFFICE> | <BRANCHOFFICE>BTDN Los Angeles Branch</BRANCHOFFICE> | <BRANCHOFFICE>BTDN Boston Branch</BRANCHOFFICE> | <BRANCHOFFICE>BTDN Tokyo Branch</BRANCHOFFICE> | <BRANCHOFFICE>BTDN Paris Branch</BRANCHOFFICE> | </SEC> | | where SEC is something like | | <!ELEMENT SEC - - (COMPANY,DESC,MAINOFFICE,BRANCHOFFICE*)> | | and it ought to be formatted like this: | | Big-Time Do-Nothing Company | | We charge lots of money for things you can do yourself. | | Main Office | BTDN 666 Big Blvd., New York | | Branch Offices | BTDN Los Angeles Branch BTDN Tokyo Branch | BTDN Boston Branch BTDN Paris Branch | | So all the branch offices ought to be directed into the ports of a | column-set-sequence, but since they are on the same level as, for example, | MAINOFFICE and not grouped together as the only children of some other | element (maybe called "BRANCHOFFICES"), there is no good place to put | the column-set-sequence flow object. Not (yet?) being a DSSSL expert myself, I'll take a shot at this anyhow. I think a solution along the following lines (leaving out all sorts of hairy details) ought to work: (element (DESC) (with-mode no-branches (process-children)) (make column-set-sequence (process-matching-children BRANCHOFFICE))) (mode no-branches (element (BRANCHOFFICE) (empty-sosofo))) Using modes together with the query language seems like a fairly powerful combination. - Harald DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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