Subject: How to perform calculation? From: Philippe CASIDY <pcasidy@xxxxxxxxxxx> Date: Tue, 16 May 2000 18:01:44 +0200 (CEST) |
Hello! I am wondering how I could do some calculations on values inside my documents. I am using JADE and TeX backend. For instance, I have the followind DTD and instance : <!ENTITY % doctype "TEST" > <!ELEMENT %doctype;- - ( DETAILS ) > <!ELEMENT DETAILS - - (LINE+) > <!ELEMENT LINE - - (DESC& QUANTITY ) > <!ELEMENT DESC - O (#PCDATA) > <!ELEMENT QUANTITY - O (#PCDATA) > <!DOCTYPE TEST SYSTEM "test.dtd"> <Test> <DETAILS> <LINE> <DESC>Fisrt Value <QUANTITY>15 </LINE> <LINE> <DESC>Second Value <QUANTITY>1 </LINE> </DETAILS> </Test> In my DSSSL, I would like to sum the values of QUANTITY and to have this result inserted in the output. For instance, here is a DSSSL: (root (make simple-page-sequence ) ) (define %column1_width% 6cm) (define %column2_width% 2cm) (define %column3_width% 2.5cm) (define %column4_width% 2.5cm) (define %column5_width% 2cm) (define %column6_width% 2cm) (element TEST (make simple-page-sequence font-name: "Helvetica" left-margin: 2cm right-margin: 2cm top-margin: 2cm bottom-margin: 4cm left-footer: (empty-sosofo) center-footer: (empty-sosofo) ) ) (element DETAILS (make table table-border: #t space-before: 6pt space-after: 6pt (make table-column ; DESC column-number: 1 cell-before-column-margin: 6pt cell-after-column-margin: 6pt display-alignment: 'center width: %column1_width% ) (make table-column ; QUANTITY column-number: 2 cell-after-column-margin: 6pt display-alignment: 'center width: %column2_width% ) (process-children) (make table-row (make table-cell (make paragraph quadding: 'center (literal "Total") ) ) (make table-cell (make paragraph quadding: 'start (literal "How to calculate the sum?") ) ) ) ) ) (element LINE (make table-row (make table-cell (make paragraph quadding: 'center (process-node-list (select-elements (descendants (current-node)) "DESC" ) ) ) ) (make table-cell (make paragraph quadding: 'center (process-node-list (select-elements (descendants (current-node)) "QUANTITY" ) ) ) ) ) ) Thanks for your help! Phil. DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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