DFDL 1.0 has dfdl:ignoreCase 'yes' for
use when parsing delimiters and other cases where the DFDL parser is trying
to match against a user-specified string, but there is no property for
changing the case of data when it is inserted into the infoset. That sort
of thing is typically considered a post parse transformation step.
However you can achieve the same effect
by using an additional dummy element that uses dfdl:inputValueCalc.
<xs:sequence>
<xs:element name="ContentTypeRaw"
type="xs:string" dfdl:lengthKind="delimited" ... />
<xs:element name="ContentType"
type="xs:string" dfdl:inputValueCalc="{fn:lower-case(../ContentTypeRaw}"
... />
</xs:sequence>
And if you only want the normalized
element to appear in the infoset...
<xs:sequence>
<xs:sequence dfdl:hiddenGroupRef="ContentTypeRaw"
... />
<xs:element name="ContentType"
type="xs:string" dfdl:inputValueCalc="{fn:lower-case(../ContentTypeRaw}"
... />
</xs:sequence>
<xs:group name="ContentTypeRaw">
<xs:sequence>
<xs:element name="ContentTypeRaw"
type="xs:string" dfdl:lengthKind="delimited" ... />
</xs:sequence>
</xs:group>
Regards
Steve Hanson
Architect, IBM Data Format Description Language (DFDL)
Co-Chair, OGF
DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848
From:
"Garriss Jr.,
James P." <jgarriss@mitre.org>
To:
"dfdl-wg@ogf.org"
<dfdl-wg@ogf.org>,
Date:
01/04/2013 14:42
Subject:
[DFDL-WG] case
insensitivity
Sent by:
dfdl-wg-bounces@ogf.org
In IMF, headers are generally case insensitive.
Thus these are equivalent:
Content-Type: text/html
Content-Type: TEXT/HTML
Content-Type: Text/Html
Content-Type: tExT/hTmL
Does DFDL have a way to tell the parser
to parse text in a case-insensitive manner? A quick search of the
spec didn’t reveal anything.--
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