Michael Beckerle created DAFFODIL-2092:
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Summary: Bad diagnostic when using dynamic separator the value of
which is NUL (ascii 0)
Key: DAFFODIL-2092
URL: https://issues.apache.org/jira/browse/DAFFODIL-2092
Project: Daffodil
Issue Type: Bug
Affects Versions: 2.3.0
Reporter: Michael Beckerle
Attachments: my.dfdl.xsd, my2.csv
This test actually shows up two bugs.
One bug, which appears in both 2.2.0 and 2.3.0 is that if you have
{code:java}
dfdl:separator="{ ./sep }"{code}
and the value of the sep element is a string containing a single NUL character,
then on 2.2.0 it complains the separator cannot be an empty string. Clearly
this string is not empty.
On 2.3.0, the diagnostic message also complains about what is in the string
somewhat differently however. The message is:
{code:java}
[error] Schema Definition Error: The property 'null' cannot start or end with
the string " ", did you mean to use '%SP;' instead?
Schema context: sequence[2] Location line 80 column 10 in
file:/home/mbeckerle-unencrypted/DFDLSchemas/CSV/src/test/resources/com/tresys/my.dfdl.xsd{code}
Note that there are two problems here. First is "The property 'null' cannot
...." that's broken because the property name isn't being provided. Instead it
somehow has 'null' as the property name.
Second it somehow thinks there is whitespace/space in the delimiter.
The DFDL schema and test data file are attached to this bug. If placed in the
same directory, the test can be run from the CLI using:
{code:java}
daffodil -v parse -s my.dfdl.xsd my2.csv{code}
The data consists of a header row, then a set of data row lines. Each data row
begins with a single character, which goes into the Sep element, and that
element's value is to be used as the separator for the remaining elements of
the row.
When this value of Sep is an ordinary character such as "," or "|", things work
fine.
When this value of Sep is an Ascii NUL, these errors occur.
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