Scenario

You would like to match a specific part of the subject as a project key, if .  If found, issues will be created in the related project.

Configuration

This is not specific to directives, you don't need the Subject Field Processor for this to work, it's a single regular expression:

Example Test Case Message

This message can be cut/pasted into a JEMH Test Case.

MIME-Version: 1.0
Received: by 10.223.112.12 with HTTP; Tue, 4 Dec 2012 22:42:26 -0700 (PDT)
Date: Tue, 4 Dec 2012 17:42:26 +1200
Message-ID: <BANLkTinB1mfSh+GwOXGNWoL4SyDvOpdBoQ@mail.gmail.com>
Subject: This is a starting email template, update as required (ATST)
From: "A User" <user@faraway.com>
To: notest@localhost
Content-Type: text/plain; charset=UTF-8

some text

Project Auto Assign from Subject

This field, if present will be used to locate a match in the subject through the related 1st capture group.

...

...

...

...

For example, the regular expression :

...

([A-Z]*)

...

will match the first alphabetical word in the emailsubject, actually 'This'.  In this case , the implied project key is ATST, so the regular expression needs to include the unique parentheses ( ) characters, but because we are using a regular expression, these character .  However,  when using regular expressions, these characters have special meaning (capturing groups) and must be escaped with a single backslash, it .  Therefore the regular expression becomes:

...

 \(([A-Z]*)\)

...

Now, the only match that can be made with the entire regular expression in the subject is (ATST), but , the 1st due to the inner parentheses being a capture group, that JEMH needs/uses, only covers A-Z*, resulting in a match for ATST. the resulting match is ATST.  If this project key exists, it will be used.

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