Artur Jablonski created MIME4J-263:
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Summary: DecoderUtil.decodeEncodedWords() doesn't decode an
encoded empty string
Key: MIME4J-263
URL: https://issues.apache.org/jira/browse/MIME4J-263
Project: James Mime4j
Issue Type: Bug
Components: parser (core)
Reporter: Artur Jablonski
Priority: Minor
{{DecoderUtil.decodeEncodedWords()}} returns an unencoded string if the word to
decode is empty.
For example
{{DecoderUtil.decodeEncodedWords("=?utf-8?Q??=", DecodeMonitor.SILENT)}}
returns
{{"=?utf-8?Q??="}}
instead of empty string (or perhaps null)
The problem lies in the regexp that is used behind the scenes that requires at
least one character:
{code}
private static final Pattern PATTERN_ENCODED_WORD = Pattern.compile(
"(.*?)=\\?(.+?)\\?(\\w)\\?(.+?)\\?=", Pattern.DOTALL);
{code}
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