[DFDL-WG] Proposed Errata: New function dfdl:stringLiteralToString
Steve Hanson
smh at uk.ibm.com
Wed Dec 12 13:02:06 EST 2012
Should name be dfdl:stringFromStringLiteral to mirror existing
dfdl:stringLiteralFromString (or should the latter be
dfdl:stringToStringLiteral - follows the Java toString() pattern) ?
Regards
Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848
From: Steve Hanson/UK/IBM
To: Mike Beckerle <mbeckerle.dfdl at gmail.com>,
Cc: dfdl-wg at ogf.org, dfdl-wg-bounces at ogf.org
Date: 12/12/2012 17:20
Subject: Re: [DFDL-WG] Proposed Errata: New function
dfdl:stringLiteralToString
Mike, should we disallow DFDL Character Class entities also ?
Regards
Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848
From: Mike Beckerle <mbeckerle.dfdl at gmail.com>
To: dfdl-wg at ogf.org,
Date: 12/12/2012 15:40
Subject: [DFDL-WG] Proposed Errata: New function
dfdl:stringLiteralToString
Sent by: dfdl-wg-bounces at 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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Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number
741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
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