On 07/12/2012 18:24, ольга крыжановская wrote:
> David, can you give me such an example? Also, does libxml2 implement
> such checks?
yes and yes, I gave an example earlier but
<!DOCTYPE x [
<!ENTITY foo "<x>aaa">
]>
<x>
<x>foo</x>
</x>
is well formed. emacs nxml-mode asys "Valid" as I wrote it
rxp, xmllint (libxml2) and java xerces similarly give no error.
Change it to use the entity:
<!DOCTYPE x [
<!ENTITY foo "<x>aaa">
]>
<x>
&foo;</x>
</x>
nxml-mode, rxp, xmllint and xerces all flag an error
nxml-mode:
Extra end-tag
rxp:
Error: Element ends in different entity from that in which it starts
in unnamed entity at line 5 char 9 of file:///c:/tmp/bad2.xml
xmllint:
Entity: line 1: parser error : Premature end of data in tag x line 1
<x>aaa
^
bad2.xml:5: parser error : Entity 'foo' failed to parse
&foo;</x>
^
bad2.xml:6: parser error : Extra content at the end of the document
</x>
^
xerces
XML document structures must start and end within
the same entity.
David
