[jira] Issue Comment Edited: (MIME4J-138) DecoderUtil.decodeEncodedWords() fails if encoded-text starts with an equals sign

["Aron Wieck (JIRA)" <mi...@james.apache.org>]

    [ https://issues.apache.org/jira/browse/MIME4J-138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12744492#action_12744492 ] 

Aron Wieck edited comment on MIME4J-138 at 8/18/09 6:17 AM:
------------------------------------------------------------

Attached svn diff and full DecoderUtil.java with the changes.

This differs from my previously uploaded RegexDecoderUtil.java in the following points:

- the regular expression pattern has been changed to be more tolerant on wrong encoding data. It now assumes that no "?" sign may be in the encoded word other than these four: =?charset?enc?text?=

- the log output now includes the encoded word again

- added comments

      was (Author: eunice):
    Attached svn diff and full DecoderUtil.java with the changes.

This differs from my previously uploaded RegexDecoderUtil.java in the following points:

- the regular expression pattern has been changed to be more tolerant on wrong encoding data. It now assumes that no "?" sign may be in the encoded word. 

- the log output now includes the encoded word again

- added comments
  
> DecoderUtil.decodeEncodedWords() fails if encoded-text starts with an equals sign
> ---------------------------------------------------------------------------------
>
>                 Key: MIME4J-138
>                 URL: https://issues.apache.org/jira/browse/MIME4J-138
>             Project: JAMES Mime4j
>          Issue Type: Bug
>    Affects Versions: 0.6
>            Reporter: Markus Wiederkehr
>            Assignee: Markus Wiederkehr
>             Fix For: 0.7
>
>         Attachments: DecoderUtil.diff, DecoderUtil.java, RegexDecoderUtil.java
>
>
> For example "=?utf-8?Q?=20test?=" should be decoded as " test". Instead it does not get decoded at all.
> The problem is that DecoderUtil.decodeEncodedWords() falsely identifies =?utf-8?Q?= as the encoded word which cannot be decoded.

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