[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Why is < illegal in an attribute value but theequivalent h
Thanks Pete. That makes sense. And to be sure that I am crystal clear, when you say: Internal logic converts "<x>blah</x>" to "<x>blah</x>" The resulting converted value: "<x>blah</x>" does _not_ mean there is an element <x> with value blah. Rather, it means there is a stream of characters '<', 'x', '>', 'b', 'l', 'a', 'h', '<', '/', 'x', '>' and those characters have no semantics and are not to be interpreted. Correct? /Roger -----Original Message----- From: Pete Cordell <pete++xmldev@codalogic.com> Sent: Thursday, March 17, 2022 7:48 AM To: Roger L Costello <costello@mitre.org>; xml-dev@l... Subject: [EXT] Re: Why is < illegal in an attribute value but the equivalent hex and decimal character entities are legal? On 17/03/2022 11:25, Roger L Costello wrote: > So this is perfectly well-formed XML: > > <Test foo="<x>blah</x>"/> > > And the numeric character references will be replaced during the parsing process to yield this: > > <Test foo="<x>blah</x>"/> I'd say that parsing <Test foo="<x>blah</x>"/> yields an attribute named "foo" with a value of "<x>blah</x>". It's not creating an alternate piece of XML that is then parsed again. The sequence is more like: - Low level XML tokeniser reads attribute name "foo" - Low level parse checks it's followed by "=" and quotes - Low level parser reads until it finds end quote, getting "<x>blah</x>" - Internal logic converts "<x>blah</x>" to "<x>blah</x>" - Internal logic creates a data record for an attribute of name "foo" with value "<x>blah</x>" and associates it with the element "Test". Regards, Pete. -- --------------------------------------------------------------------- Pete Cordell Codalogic Ltd Read & write XML in C++, http://www.xml2cpp.com --------------------------------------------------------------------- _______________________________________________________________________ XML-DEV is a publicly archived, unmoderated list hosted by OASIS to support XML implementation and development. To minimize spam in the archives, you must subscribe before posting. [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ Or unsubscribe: xml-dev-unsubscribe@lists.xml.org subscribe: xml-dev-subscribe@lists.xml.org List archive: http://lists.xml.org/archives/xml-dev/ List Guidelines: http://www.oasis-open.org/maillists/guidelines.php
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