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Diffstat (limited to 'doc/src/qtxmlpatterns.qdoc')
| -rw-r--r-- | doc/src/qtxmlpatterns.qdoc | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/src/qtxmlpatterns.qdoc b/doc/src/qtxmlpatterns.qdoc index 6b82c0d42..9532401f5 100644 --- a/doc/src/qtxmlpatterns.qdoc +++ b/doc/src/qtxmlpatterns.qdoc @@ -839,6 +839,27 @@ with the \c fn:id() function. See \l{http://www.w3.org/TR/xml-id/}{xml:id Version 1.0} for details. + \section2 XML Schema 1.0 + + The QtXmlPatterns implementation of XML Schema validation supports + the schema specification version 1.0 in large parts. Known problems + of the implementation and areas where conformancy may be questionable + are: + + \list + \o Large \c minOccurs or \c maxOccurs values or deeply nested ones + require huge amount of memory which might cause the system to freeze. + Such a schema should be rewritten to use \c unbounded as value instead + of large numbers. This restriction will hopefully be fixed in a later release. + \o Comparison of really small or large floating point values might lead to + wrong results in some cases. However such numbers should not be relevant + for day-to-day usage. + \o Regular expression support is currently not conformant but follows + Qt's QRegExp standard syntax. + \o Identity constraint checks can not use the values of default or fixed + attribute definitions. + \endlist + \section2 Resource Loading When QtXmlPatterns loads an XML resource, e.g., using the |