[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: RE: Formatting Processing Instructions
We had a different use of PIs. We are testing transformations, and so we could that the output has the same number of text nodes as the input. But the output untags many pieces of text. So we replaced stripped tags with PIs, thus maintaining the text node boundaries and allowing the count. We could also use XML comments for this, but IIRC we use comments for other things. So we could use XML comments and then add some signature string at the start of the comment value to distinguish the different kinds of comments. But why go to the trouble when XML already provides a second kind of free tag (i,e, PIs). I guess from a software engineering perspective, what PIs allow is a separation of concerns that reduces coordination effort: in the case above, we have a thorough but heavyweight schema development regime, so the requirements of testers could be accommodated by developers without needing to go to back to analysts and schema developers nor forward to presentation developers. Cheers Rick
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