Being a new (and basic) user of OmniOutliner and immediately searching for a Twiki export feature I created a super quick perl script to take care of most of the conversion. This does require that you're not afraid of opening a terminal :-)
PHP Code:
#!/usr/bin/perl
while (<>) {
s/^ - \[ \]/ */;
s/^ - \[ \]/ */;
s/^ - \[ \] / * /;
s/^ - \[ \] / * /;
s/^- \[ \] /---++ /;
print;
}
This probably doesn't make a lot of sense unless you know perl and/or regular expressions, but it does the job, more or less.
The approach I use:
1) Click top-left corner of open project in OmniOutliner and click CMD-A to mark everything, then CMD-C to copy to clipboard
2) Open a terminal
3) pbpaste > project.input
4) cat project.input | ./convert.pl > project.twiki
5) cat project.twiki | pbcopy
... where convert.pl is the script included in this port.
This will generate a Twiki source code that you can copy into a twiki editor. Step 5) places the content in your clipboard so you can just CMD-V it into a browser editor window.
Hope this helps someone.