- From: Boris Kolpackov <boris@codesynthesis.com>
- Date: Fri, 5 Jan 2007 10:19:28 +0200
- To: "Watkins, Bill" <bill.watkins@boeing.com>
- Cc: xmlschema-dev@w3.org, "Tsao, Scott" <scott.tsao@boeing.com>
Hi Bill,
Watkins, Bill <bill.watkins@boeing.com> writes:
> <QuotedStringList>
> "your dog.my_dog" "my_cat$your_cat"
> "their_rat"
> </QuotedStringList>
>
> [...]
>
> <xs:simpleType name="QUOTEDNAME_TYPE">
> <xs:restriction base="xs:string">
> <xs:pattern value='\s*"\S([^"]|\s)+\S"\s*'/>
> </xs:restriction>
> </xs:simpleType>
>
> <xs:simpleType name="QUOTEDNAMELIST_TYPE">
> <xs:list itemType="QUOTEDNAME_TYPE"/>
> </xs:simpleType>
The list-based approach won't works since you can have whitespaces inside
list values. In the example above your list will be chopped up as follows:
'"your' 'dog.my_dog"' '"my_cat$your_cat"' '"their_rat"'.
> <xs:simpleType name="listOfQuotedStrings">
> <xs:restriction base="xs:string">
> <xs:pattern value='(("[^"]*")\s+)*'/>
> </xs:restriction>
> </xs:simpleType>
This one won't work since it expects at least one whitespace after a
quoted string, even the last one.
> <xs:simpleType name="listOfQuotedStrings">
> <xs:restriction base="xs:string">
> <xs:pattern value='("[^"]*"(\s+"[^"]*")*)?'/>
> </xs:restriction>
> </xs:simpleType>
This one is almost there. The only thing you need to add is optional
whitespaces before the first quoted string and after the last (note
the newlines after <QuotedStringList> and before "your dog.my_dog"
as well as after "their_rat" and before </QuotedStringList> -- they
are part of the value):
<xs:pattern value='(\s*"[^"]*"(\s+"[^"]*")*\s*)?'/>
hth,
-boris
--
Boris Kolpackov
Code Synthesis Tools CC
http://www.codesynthesis.com
Open-Source, Cross-Platform C++ XML Data Binding
Received on Friday, 5 January 2007 08:36:34 UTC