defining elements with patterns and childelements

Hello schema-experts,

I spent the whole day with tinking and trying and now my head is totally 
empty. I have the following complexType which describes a listType for 
unordered and ordered lists:

    <xs:complexType name="listType">
        <xs:sequence>
            <xs:element name="unorderedlist" maxOccurs="unbounded">
                <xs:simpleType>
                    <xs:restriction base="xs:string">
                        <xs:pattern value="&#x02DC;.*"/>
                        <xs:pattern value="&#x2013;.*"/>
                        <xs:pattern value="&#x2022;.*"/>
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
            <xs:element name="orderedlist" maxOccurs="unbounded">
                <xs:simpleType>
                    <xs:restriction base="xs:string">
                        <xs:pattern value="[0-9].*"/>
                        <xs:pattern value="[a-z].*"/>
                        <xs:pattern value="[i-iiii]{1,4}.*"/>
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
        </xs:sequence>
    </xs:complexType>


My aim: the element unorderedlist or orderedlist should start with an 
special pattern (see above) and after the pattern it should be possible 
to use text or other elelemts. 

Example:
<orderedlist>1. This is an orderedlist with a special<specchar> 
character</specchar> and again text.</orderedlist>
<orderedlist>2. This is an orderedlist again with a special<specchar> 
character</specchar>.</orderedlist>

Does anyone out there have an idea how to realise such an approach? I 
hope the question is understandable so far :-)

Thanks sooo much to everyone.
Andreas