DokuWiki Converters 

http://wiki.splitbrain.org/wiki%3Atips

OpenOffice document 

Iannz DokuWiki macro

http://homepages.paradise.net.nz/hillview/OOo/

copies an OpenOffice document on DokuWiki format, so that it can be pasted into a DokuWiki editing page.

Convert HTML to DokuWiki 

For converting existing documents to text files with DokuWiki syntax using some HTML to Text converter could be an idea. I put up a config file for the tool available at http://userpage.fu-berlin.de/~mbayer/tools/html2text.html which produces some usable results: text2html.rc.

Thomas J. Messenger made a Perl module to convert HTML to DokuWiki's syntax available at http://www.citlink.net/~messengertj/ (see 81, too)

Task #81 HTML::WikiConverter::Dialect::DokuWiki FWIW 

http://bugs.splitbrain.org/index.php?do=details&id=81

FWIW I have made a first stab at a DokuWiki dialect for the Perl module HTML::WikiConverter

The module is posted at http://www.citlink.net/~messengertj as DokuWiki.pm. When defining a new WikiConverter object, dialect must be specified as 'DokuWiki'. test.pl is a Perl script to convert an HTML file (argument) to DokuWiki. WikiConverter works hard at stripping leading and trailing blanks. Unfortunately, that zaps some DokuWiki mark-up. I have used as a placeholder for blank and there is a post-processing step to replace those (s// /g). Anyone interested is welcome to these. (At present test.pl also makes a MediaWiki conversion. The base_url is the second argument.)

HTML::WikiConverter is available from CPAN.