Can I specify in XSD for not accepting a particular pattern

[prathibha, ar]

Hi,
I am validating my XML file by means of an XSD. Can I specify in
the XSD for not accepting a particular pattern.
I don't want to accept the string containing pattern "'".
Becuase if it tries to get inserted into database error will occur.
Thanks in advance
prathibha

[Ambrose Tati]

Hello there,
I think, if you derive your type from xsd:string and then you specify what it should contain in the xsd attern you'll get what what you're looking for.
For example if I wanted my string to contain things like
<string of lower letters>@<string of lower letters>.com
(as in [e-mail]), I could do something like this:
<xsd:element name="myUrl">
<xsd:simpleType>
<xsd:restriction base = "xsd:string">
<xsd attern value = "([a-z])+@([a-z])+.(com)"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>

if you change <xsd attern value = "([a-z])+@([a-z])+.(com)"/> to
<xsd attern value = "([a-z])+"/> you'll ensure that it will not be empty and will only contain any combination of letters.
Hope this helps
Ambrose Tati