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Posted to c-dev@xerces.apache.org by Alexey Miroshnichenko <Al...@EDIFECS.COM> on 2001/04/18 12:40:30 UTC
ValScheme question
Hi all,
Pardon me if I address my problem not correctly. But may be anyone
can help my with follow questions. I use xerces-c-1_3_0.
1) I have well-formed xml file with DOCTYPE declaration but
corresponding dtd file is absent. I do
setValidationScheme(SAXParser::ValSchemes::Val_Never)
and I suppose that dtd file do not needed in this case. But I catch
exception: unnable open dtd file.
I looked in source. At first we scan dtd file(XMLScanner.cpp,
scanProlog()), then we set up Validation scheme(XMLScanner.cpp,
scanDocument()).
Is this behaviour of parser engine correct?
2) I have well-formed xml file with empty DOCTYPE declaration
<!DOCTYPE rootnodename> and I set ValSchemes::Val_Auto. After
successful scanDTD() we set fHaveSubset = true. And after this
we set fValidate = fHaveSubset, i.e. "true". The same place in
XMLScanner.cpp. So, validation failed.
The same question.
May be I should go to bugzilla?
Thanks before.
--
Best regards,
Alexey mailto:AlexeyM@edifecs.com
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Re: ValScheme question
Posted by Tinny Ng <tn...@ca.ibm.com>.
You can use an EntityResolver to redirect the dtd to a dummy dtd. For an
example on how to use an entity resolver, see the sample "Redirect".
Tinny
Alexey Miroshnichenko wrote:
> Hello Tinny,
>
> Thanks for your answer especially for part II. But can I ask you more?
>
> If I have only xml files and my objective is only test them for be
> well-formed. Some files have doctype decl some haven't. I must do only
> this test. And in general case I have no dtd file. How can I be equal
> to a task?
>
> I think there is nothing bad if parser engine skip reading dtd in this
> case. It may notify me about unparsed entity but it must answer the
> question about well-formnesty.
>
> Can I think in this way?
>
> TN> For question 1):
>
> TN> If a DTD is specified, the parser will always scan it even if the
> TN> validation is off, because DTDs can provide many other information, like
> TN> default attributes and entities, in addition to validation. So the
> TN> parser behaviour is correct.
>
> TN> For quesiton 2):
>
> TN> Someone has reported a similar problem earlier, and I think this is a
> TN> bug. With empty DOCTYPE declaration (<!DOCTYPE rootnodename>) and
> TN> ValSchemes::Val_Auto, the fHaveSubset should be false and validation
> TN> should be off. I have a fix ready, and should be checked in within the
> TN> next few days.
>
> TN> Thanks!
>
> TN> Tinny
>
> TN> Alexey Miroshnichenko wrote:
>
> >> Hi all,
> >>
> >> Pardon me if I address my problem not correctly. But may be anyone
> >> can help my with follow questions. I use xerces-c-1_3_0.
> >>
> >> 1) I have well-formed xml file with DOCTYPE declaration but
> >> corresponding dtd file is absent. I do
> >>
> >> setValidationScheme(SAXParser::ValSchemes::Val_Never)
> >>
> >> and I suppose that dtd file do not needed in this case. But I catch
> >> exception: unnable open dtd file.
> >> I looked in source. At first we scan dtd file(XMLScanner.cpp,
> >> scanProlog()), then we set up Validation scheme(XMLScanner.cpp,
> >> scanDocument()).
> >>
> >> Is this behaviour of parser engine correct?
> >>
> >> 2) I have well-formed xml file with empty DOCTYPE declaration
> >> <!DOCTYPE rootnodename> and I set ValSchemes::Val_Auto. After
> >> successful scanDTD() we set fHaveSubset = true. And after this
> >> we set fValidate = fHaveSubset, i.e. "true". The same place in
> >> XMLScanner.cpp. So, validation failed.
> >>
> >> The same question.
> >>
> >> May be I should go to bugzilla?
> >>
> >> Thanks before.
> >>
> >> --
> >> Best regards,
> >> Alexey mailto:AlexeyM@edifecs.com
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> >> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
> TN> ---------------------------------------------------------------------
> TN> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> TN> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
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Re[2]: ValScheme question
Posted by Alexey Miroshnichenko <Al...@EDIFECS.COM>.
Hello Tinny,
Thanks for your answer especially for part II. But can I ask you more?
If I have only xml files and my objective is only test them for be
well-formed. Some files have doctype decl some haven't. I must do only
this test. And in general case I have no dtd file. How can I be equal
to a task?
I think there is nothing bad if parser engine skip reading dtd in this
case. It may notify me about unparsed entity but it must answer the
question about well-formnesty.
Can I think in this way?
TN> For question 1):
TN> If a DTD is specified, the parser will always scan it even if the
TN> validation is off, because DTDs can provide many other information, like
TN> default attributes and entities, in addition to validation. So the
TN> parser behaviour is correct.
TN> For quesiton 2):
TN> Someone has reported a similar problem earlier, and I think this is a
TN> bug. With empty DOCTYPE declaration (<!DOCTYPE rootnodename>) and
TN> ValSchemes::Val_Auto, the fHaveSubset should be false and validation
TN> should be off. I have a fix ready, and should be checked in within the
TN> next few days.
TN> Thanks!
TN> Tinny
TN> Alexey Miroshnichenko wrote:
>> Hi all,
>>
>> Pardon me if I address my problem not correctly. But may be anyone
>> can help my with follow questions. I use xerces-c-1_3_0.
>>
>> 1) I have well-formed xml file with DOCTYPE declaration but
>> corresponding dtd file is absent. I do
>>
>> setValidationScheme(SAXParser::ValSchemes::Val_Never)
>>
>> and I suppose that dtd file do not needed in this case. But I catch
>> exception: unnable open dtd file.
>> I looked in source. At first we scan dtd file(XMLScanner.cpp,
>> scanProlog()), then we set up Validation scheme(XMLScanner.cpp,
>> scanDocument()).
>>
>> Is this behaviour of parser engine correct?
>>
>> 2) I have well-formed xml file with empty DOCTYPE declaration
>> <!DOCTYPE rootnodename> and I set ValSchemes::Val_Auto. After
>> successful scanDTD() we set fHaveSubset = true. And after this
>> we set fValidate = fHaveSubset, i.e. "true". The same place in
>> XMLScanner.cpp. So, validation failed.
>>
>> The same question.
>>
>> May be I should go to bugzilla?
>>
>> Thanks before.
>>
>> --
>> Best regards,
>> Alexey mailto:AlexeyM@edifecs.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
>> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
TN> ---------------------------------------------------------------------
TN> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
TN> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
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Re: ValScheme question
Posted by Tinny Ng <tn...@ca.ibm.com>.
The fix for question 2 should now in nightly build,
http://xml.apache.org/dist/xerces-c/nightly/2001-04-20/, please verify.
Tinny
Tinny Ng wrote:
> Alexey,
>
> For question 1):
>
> If a DTD is specified, the parser will always scan it even if the
> validation is off, because DTDs can provide many other information, like
> default attributes and entities, in addition to validation. So the
> parser behaviour is correct.
>
> For quesiton 2):
>
> Someone has reported a similar problem earlier, and I think this is a
> bug. With empty DOCTYPE declaration (<!DOCTYPE rootnodename>) and
> ValSchemes::Val_Auto, the fHaveSubset should be false and validation
> should be off. I have a fix ready, and should be checked in within the
> next few days.
>
> Thanks!
>
> Tinny
>
> Alexey Miroshnichenko wrote:
>
> > Hi all,
> >
> > Pardon me if I address my problem not correctly. But may be anyone
> > can help my with follow questions. I use xerces-c-1_3_0.
> >
> > 1) I have well-formed xml file with DOCTYPE declaration but
> > corresponding dtd file is absent. I do
> >
> > setValidationScheme(SAXParser::ValSchemes::Val_Never)
> >
> > and I suppose that dtd file do not needed in this case. But I catch
> > exception: unnable open dtd file.
> > I looked in source. At first we scan dtd file(XMLScanner.cpp,
> > scanProlog()), then we set up Validation scheme(XMLScanner.cpp,
> > scanDocument()).
> >
> > Is this behaviour of parser engine correct?
> >
> > 2) I have well-formed xml file with empty DOCTYPE declaration
> > <!DOCTYPE rootnodename> and I set ValSchemes::Val_Auto. After
> > successful scanDTD() we set fHaveSubset = true. And after this
> > we set fValidate = fHaveSubset, i.e. "true". The same place in
> > XMLScanner.cpp. So, validation failed.
> >
> > The same question.
> >
> > May be I should go to bugzilla?
> >
> > Thanks before.
> >
> > --
> > Best regards,
> > Alexey mailto:AlexeyM@edifecs.com
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
Re: ValScheme question
Posted by Tinny Ng <tn...@ca.ibm.com>.
Alexey,
For question 1):
If a DTD is specified, the parser will always scan it even if the
validation is off, because DTDs can provide many other information, like
default attributes and entities, in addition to validation. So the
parser behaviour is correct.
For quesiton 2):
Someone has reported a similar problem earlier, and I think this is a
bug. With empty DOCTYPE declaration (<!DOCTYPE rootnodename>) and
ValSchemes::Val_Auto, the fHaveSubset should be false and validation
should be off. I have a fix ready, and should be checked in within the
next few days.
Thanks!
Tinny
Alexey Miroshnichenko wrote:
> Hi all,
>
> Pardon me if I address my problem not correctly. But may be anyone
> can help my with follow questions. I use xerces-c-1_3_0.
>
> 1) I have well-formed xml file with DOCTYPE declaration but
> corresponding dtd file is absent. I do
>
> setValidationScheme(SAXParser::ValSchemes::Val_Never)
>
> and I suppose that dtd file do not needed in this case. But I catch
> exception: unnable open dtd file.
> I looked in source. At first we scan dtd file(XMLScanner.cpp,
> scanProlog()), then we set up Validation scheme(XMLScanner.cpp,
> scanDocument()).
>
> Is this behaviour of parser engine correct?
>
> 2) I have well-formed xml file with empty DOCTYPE declaration
> <!DOCTYPE rootnodename> and I set ValSchemes::Val_Auto. After
> successful scanDTD() we set fHaveSubset = true. And after this
> we set fValidate = fHaveSubset, i.e. "true". The same place in
> XMLScanner.cpp. So, validation failed.
>
> The same question.
>
> May be I should go to bugzilla?
>
> Thanks before.
>
> --
> Best regards,
> Alexey mailto:AlexeyM@edifecs.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
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