Yes, character class entites aren't meaningful in this context. Might as well save people from the mistake. On Wed, Dec 12, 2012 at 12:25 PM, Steve Hanson <smh@uk.ibm.com> wrote:
Mike, should we disallow DFDL Character Class entities also ?
Regards
Steve Hanson Architect, Data Format Description Language (DFDL) Co-Chair, *OGF DFDL Working Group* <http://www.ogf.org/dfdl/> IBM SWG, Hursley, UK* **smh@uk.ibm.com* <smh@uk.ibm.com> tel:+44-1962-815848
From: Mike Beckerle <mbeckerle.dfdl@gmail.com> To: dfdl-wg@ogf.org, Date: 12/12/2012 15:40 Subject: [DFDL-WG] Proposed Errata: New function dfdl:stringLiteralToString Sent by: dfdl-wg-bounces@ogf.org ------------------------------
Proposed Errata: The following function is provided to assist in creating data that contains characters expressed using DFDL String Literal syntax.
dfdl:stringLiteralToString($arg)
Returns a string constructed from the $arg string argument. If $arg contains syntax matching DFDL Character Entites syntax, then the corresponding characters are used in the result. Any characters in $arg not matching the DFDL Character Entities syntax remain unchanged in the result.
Note that DFDL Byte Value Entities are not allowed. It is a schema definition error if $arg contains syntax matching DFDL Byte Value Entities syntax.
Use this function when you need to create a value which contains characters for which DFDL Character Entities are needed. An example is to create data containing the NUL (character code 0) codepoint. This character code is not allowed in XML documents, including DFDL Schemas; hence, it must be specified using a DFDL Character Entity. Within a DFDL Expression, use this function to obtain a string containing this character.
Example: dfdl:outputValueCalc='{ fn:concat(../x, dfdl:stringLiteralToString("%NUL;")) }'
-- Mike Beckerle | OGF DFDL WG Co-Chair | Tresys Technologies Tel: 781-330-0412
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-- Mike Beckerle | OGF DFDL WG Co-Chair | Tresys Technologies Tel: 781-330-0412