[mdb-dev] mdb-export encoding issue

[Rob H. <rh...@me...>]

Hi,

I am debugging a project to convert a Forum from WebWiz to phpBB. 
WebWiz stores its data in an Access DB and our phpBB forum will be on MySQL.

I am using mdb-tools version 0.7.1 on Ubuntu 16.04LTS 64-bit.  According
to mdb-ver, the mdb file I am working with is JET4.

The problem I am trying to solve involves forum post text that includes
some characters outside the basic character set.  A specific example is
the "half space" character whose UTF-8 representation I believe is the
3-byte sequence E2 80 89.  My problem is that when I use mdb-export,
these characters end up being converted to   (Hex: C3 A2 E2 82 AC E2
80 B0).

If I open this database in M$Access and use its export tool, I end up
with the expected UTF-8 representation of these characters in my output
file (E2 80 89).

I've Googled extensively and tried various permutations of the
MDB_JET3_CHARSET and MDBICONV environment variables without any change
to the output.

For example the following command

    mdb-export test-forum.mdb tblThread

produces exactly the same output as:

    MDB_JET3_CHARSET="UTF-8" mdb-export test-forum.mdb tblThread

other tries include:

    MDB_JET3_CHARSET=UTF-8 mdb-export test-forum.mdb tblThread

    MDB_JET3_CHARSET="utf-8" mdb-export test-forum.mdb tblThread

    MDB_JET3_CHARSET=utf-8 mdb-export test-forum.mdb tblThread

    MDB_JET3_CHARSET="utf-8" mdb-export test-forum.mdb tblThread

    MDB_JET3_CHARSET="CP1252" mdb-export test-forum.mdb tblThread

    MDB_JET3_CHARSET=CP1252 mdb-export test-forum.mdb tblThread

In each case, the output is the same: normal text is exported correctly,
but the extended characters seem to be double-encoded.  As the original
DB is 200MB, I have created a stripped down copy containing just one row
in this table with the "message" field containing text that includes a
number of these special characters.

Is this a bug?

I'm happy to PM  a copy of my test DB (377K) if anyone wants to
investigate further.

Cheers,

-- 
Rob Hills
Waikiki, Western Australia
Mobile: +61 (412) 904-357