On 3 Oct 2004, at 22:51, Simon Kitching wrote:
On Mon, 2004-10-04 at 11:33, robert burrell donkin wrote:
I would recommend that you take a copy of the source of whatever rule is causing you problems and rename the class (including changing the package declaration to something in your namespace), then delete the trim() call.
i'm not sure whether this would do it.
i suspect that what would be needed would be for an additional flag to be added to digester that would pass on all calls to ignorableWhitespace to characters. depending on the parser used, some configuration may be necessary to ensure that the whitespace is passed on to digester.
My understanding of "ignorable whitespace" is that when there is no DTD
or schema, whitespace is never ignorable; any text within an element is
reported via the "characters" callback. When there is a DTD or schema
present, and it indicates that a particular element has "element content
only" then any whitespace found in the element is reported as "ignorable
whitespace" instead of being reported via the "characters" method.
So as far as I can see, this is not relevant to Digester. If a document
has a schema/DTD and that DTD specifies that element <foo> is not
supposed to have any text within it (just child elements) then we really
don't care about whether there is whitespace present or not.
+1
i've had a poke around and i recon that you're probably right on this one.
I think it might be possible for the Digester class itself to trim or not trim the body text, instead of the individual rules doing it. But that would then force the same "to trim or not to trim" setting to be present for every rule, making it impossible (for example) to allow whitespace in text within the <description> element but to ignore it inside the <location-code> element.
+1
on reflection, i'd probably support added a property (to allow trimming or not) or (alternative) a post processing hook for a subclass to those rules that trim.
- robert
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