Subject: Re: (dsssl) overlapping table cells From: "Paul Tyson" <paul@xxxxxxxxxxxxxxxxxxxxxx> Date: Sat, 9 Feb 2002 15:32:46 -0800 |
----- Original Message ----- From: "SKV" <skvenkat@xxxxxxxxx> To: <DSSSList@xxxxxxxxxxxxxxxxxxxxxx> Sent: Friday, February 08, 2002 11:36 PM Subject: (dsssl) overlapping table cells > Hi, > > I am wondering (for sometime now) how this Elsevier SGML "cspan" (column > span) attribute can be implemented. > > Old archives in the biglist tells you to do this: > > (element c > (make table-cell > n-columns-spanned: (string->number (attribute-string "cspan")) > ) ) > > This doesn't work in this case since we have overlapping elements... > > <r><c cspan="2">Entry 1</c><c></c></r> > <r><c>1.0</c><c>2.0</c></r> > > What we need is more like merge cells... > The easiest way is probably to suppress processing of cells following a cell with a cspan attribute. Something like this should work: (element c (if ( preceding c has cspan > 1 ) (empty-sosofo) (make table-cell ...))) You must make a procedure for "preceding c has cspan > 1" that is general enough to deal with your data. If you have a variable number of columns, and any cell can span any number of columns, you could make a procedure that takes a node-list argument (consisting of the preceding cells), and returns #t or #f depending on whether a span is still in effect at the current cell. Another approach would be to handle cell processing at the row level, using modes or (process-node-list). Then you could select which cells to process. In this case the (element row) procedure wouldn't do (process-children). Hope this helps. --Paul Paul Tyson, Principal Consultant Precision Documents paul@xxxxxxxxxxxxxxxxxxxxxx http://precisiondocuments.com "The art and science of document engineering." > Thanks > > SKV > TnQ Books and Journals > DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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