Olabusayo Kilo created DAFFODIL-2168:
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Summary: Provide support for Non-spacing mark/Combining Characters
in Debbuger
Key: DAFFODIL-2168
URL: https://issues.apache.org/jira/browse/DAFFODIL-2168
Project: Daffodil
Issue Type: Bug
Components: Debugger
Affects Versions: 2.4.0
Reporter: Olabusayo Kilo
Attachments: nonspacingmark.png, tcp.dfdl.xsd, test.dump
Certain unicode characters are [combining
characters|https://en.wikipedia.org/wiki/Combining_character] and can combine
with the characters surrounding them, modifying them. This can lead to
misalignment in our debugger.
A possible solution could be to detect when a character is a non-spacing
(or other combining character) and insert the appropriate number of spaces
around it. Java's Character.getType method will return an enum about what type
a character is. Many of these character types might need this alignment
assistance.
Attached is a pictorial example of the problem and the files that can be used
to recreate the issue.
Command run:
{code:java}
daffodil --trace parse -Dtransport:Protocol=6 transport:DataLength=79 -s
tcp.dfdl.xsd test.dump{code}
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