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Re: [xsl] Detecting presence of attributes
Subject: Re: [xsl] Detecting presence of attributes From: Peter Flynn <peter@xxxxxxxxxxx> Date: Mon, 5 Feb 2001 22:30:57 +0000 |
On Mon, 05 Feb 2001, Francois wrote: > Okay I bite. > > What can you accomplish with an ENTITIES attribute with full SGML > implementations? Nothing specific to SGML: this works in XML also. It's not important for most users, and it's really only a matter of syntax and elegance. Omnimark lets you say (assuming foo is declared as ENTITIES): element bar set counter to 0 repeat over attribute foo increment counter output "," when counter > 1 output "%v(foo)" again The counter-setting is tedious. They should have extended the power of the OCCURRENCE operator to take on the index of the entity value when referenced within the scope of a repeat over loop for a list-valued attribute. Then it would become element bar repeat over attribute foo output "%v(foo)" output "," when number of attribute foo < occurrence again This is why Omnimark can charge large sums of money for their program (it used to be free). As a former colleague of mine said, "It's frightening, the syntax is simple enough even for my manager to grasp" :-). The alternatives (Balise and SGMLC) are based on C/C++ syntax and are more attractive to programmers with that background. > And is there an alternative in the world of XML and XSLT? Not that I am aware of, unless you want to learn DSSSL. XSLT implementations can do almost everything these languages can, but have not yet been bullet-proofed or ruggedized to industrial strength. That's probably not very far away though. My money used to be on Omnimark: it's now firmly on XSL and its siblings provided vendor pressure in W3C does not cripple the languages because of unwillingness to implement them in their entirety. This is now wandering off-topic: I suggest we leave it here. ///Peter XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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