[jira] [Created] (DAFFODIL-2205) emptyValueDelimiterPolicy does not work per specification for 'none'

["Shashi Ramaka (Jira)" <ji...@apache.org>]

Shashi Ramaka created DAFFODIL-2205:
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             Summary: emptyValueDelimiterPolicy does not work per specification for 'none' 
                 Key: DAFFODIL-2205
                 URL: https://issues.apache.org/jira/browse/DAFFODIL-2205
             Project: Daffodil
          Issue Type: Bug
    Affects Versions: 2.4.0
         Environment: Daffodil 2.4 on Windows 10
            Reporter: Shashi Ramaka
             Fix For: 2.5.0
         Attachments: bug01-input-fails.txt, bug01-input-works.txt, bug01.dfdl.xsd

From the DFDL specification, when emptyValueDelimiterPolicy is set to 'none':
{quote}'none' indicates that if the content region is empty neither the

dfdl:initiator or dfdl:terminator must be present. On unparsing when

the content region is empty nothing will be output.
{quote}
 

Based on the above, if in the schema an element has an initiator and a terminator, and if the emptyValueDelimiterPolicy is set to 'none', to represent an empty value neither the initiator nor the terminator should be present in the input.

 In the attached test case,
 * the element *MiddleName* has an initiator and a terminator
 * *emptyValueDelimiterPolicy* is set to 'none'
 * For the test input, John,,Doe we are getting the parse error: [error] Parse Error: Found out of scope delimiter: ',' ','
 * Test input John,(),Doe parses successfully

{code:xml}
  <xs:element name="input">
    <xs:complexType>
      <xs:sequence
          dfdl:separator=","
          dfdl:separatorPosition="infix"
          dfdl:separatorSuppressionPolicy="trailingEmpty">
        <xs:element
            name="FirstName"
            type="xs:string" />
        <xs:element
            name="MiddleName"
            type="xs:string"
            dfdl:initiator="("
            dfdl:terminator=")"
            dfdlx:emptyElementParsePolicy="treatAsEmpty"
            dfdl:emptyValueDelimiterPolicy="initiator" />
        <xs:element
            name="LastName"
            type="xs:string" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

{code}
 

 Input:

John,(),Doe -- parse successful

John,,Doe -- Parse error.

[error] Parse Error: Found out of scope delimiter: ',' ','

 

 The files used for testing this scenario are attached.

 



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