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foo.InnerXML= foo.InnerXML + " blah3</quux> would cause a
runtime exception, you would never get to the print.
Dan
On 25 Sep 2002 at 8:57, Arjun Ray wrote:
> "Aaron Skonnard" <aarons@develop.com> wrote:
>
> | Why isn't validity decidable?
>
> Because in the general case, you don't know what to parse, because you
> don't know when to parse. The string could change at any time. Your
> obvious strategy would be to simply cache the string, never parsing it
> until and unless forced to (say, if the "InnerXML" of some part inside
> were requested). If no such parse-forcing accesses occur, you can simply
> dump to output the the cached result of input string operations.
>
> We've already noted that something like
>
> foo.InnerXML="<bar>blah1<quux>blah2"
>
> causes some kind of dwimming to occur. Suppose this were followed by
>
> foo.InnerXML= foo.InnerXML + " blah3</quux>"
>
> and then foo.print (or whatever the "dump to output" call is). Will there
> be a "</quux>" after "blah2"? If not, why not? Wasn't then the first
> assignment parsed? If you interpolate a read of foo.bar.quux.InnerXML
> before the append and dump to output, is there a difference?
>
> I'd be very surprised if the internals weren't string-based with "lazy"
> parsing.
>
> | You may not like such features for reasons related to "purity"
>
> Purity has nothing to do with it. Clue has everything to do with it.
>
> | but that's not going to stop the hoards of Microsoft developers from
> | using them to increase productivity and get the job done.
>
> Don't I know that! I have the perfect sig for you. ;-)
>
> --
> Moronization: a form of acculturation where people are encouraged to
> anoint themselves with the supposed benefits of a technology without
> understanding the engineering (or lack thereof.)
>
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