Thanks Steve!
dfdlx:repType <-- I assume ‘x’ means ‘extension’, right? I.e., not standard
DFDL, right? Not standard equals ‘bad’, right?
From: Steve Lawrence <slawre...@apache.org>
Sent: Wednesday, May 29, 2024 7:40 AM
To: users@daffodil.apache.org
Subject: [EXT] Re: Does Daffodil support the XPath "to" operator?
That is correct, daffodil dost not support the "to" operator. However, DFDL
defines, and Daffodil supports as of 3. 7. 0, the dfdl: checkRangeInclusive and
dfdl: checkRangeExclusive functions, for example, you could use this instead:
if (dfdl: checkRangeInclusive(. . /BitCode,
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erEnd
That is correct, daffodil dost not support the "to" operator.
However, DFDL defines, and Daffodil supports as of 3.7.0, the
dfdl:checkRangeInclusive and dfdl:checkRangeExclusive functions, for example,
you could use this instead:
if (dfdl:checkRangeInclusive(../BitCode, 12, 71)) then 'UNDEFINED'
Alternatively, you might consider using repType/enuemration/repValues, which was
designed to replace these complex inputValueCalcs that are essentially just enum
lookup tables. For example, your BitCode/Meaning elements would be replaced with
this:
<element name="BitCode" dfdlx:repType="unsignedInt5">
<simpleType>
<restriction base="xs:string">
<enumeration value="A" dfdlx:repValues="0" />
<enumeration value="B" dfdlx:repValues="1" />
...
<enumeration value="UNDEFINED" dfdlx:repValueRanges="12 71" />
</restriction>
</simpleType>
</element>
So BitCode is now an xs:string and only the string value appears in the infoset.
But we first parse it as an unsignedInt5 because of the repType, then look up
the matching repValue in the enumeration to find the string value. So if we
parse a 1, BitCode gets a value of "B" in the infoset. If it's in the range of
12 to 71 inclusive then the infoset gets "UNDEFINED".
On 2024-05-29 07:24 AM, Roger L Costello wrote:
> In an inputValueCalc I want to have this:
>
> if (../BitCode = (12 to 71)) then 'UNDEFINED'
>
> See below. From my testing, it appears that Daffodil does not support the
> "to" operator. Is that correct? Is there a workaround?
>
> <xs:element name="test">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="BitCode" type="unsignedint5"/>
> <xs:element name="Meaning" type="xs:string"
> dfdl:inputValueCalc="{
> if (../BitCode eq 0) then 'A'
> else if (../BitCode eq 1) then 'B'
> ...
> else if (../BitCode = (12 to 71)) then 'UNDEFINED'
> else fn:error('invalid value for test')
> }"
> />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
