Unicode escapes are lost if escape character is backslash
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Key: CSV-58
URL: https://issues.apache.org/jira/browse/CSV-58
Project: Commons CSV
Issue Type: Bug
Reporter: Sebb
The current escape parsing converts <esc><char> to plain <char> if the <char>
is not one of the special characters to be escaped.
This can affect unicode escapes if the <esc> character is backslash.
One way round this is to specifically check for <char> == 'u', but it seems
wrong to only do this for 'u'.
Another solution would be to leave <esc><char> as is unless the <char> is one
of the special characters.
There are several possible ways to treat unrecognised escapes:
- treat it as if the escape char had not been present (current behaviour)
- leave the escape char as is
- throw an exception
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