You can simulate:
TAB space : TAB creates a definition list for an empty term. Nifty reuse of the TextFormattingRules! It's not nifty, and semantically wrong. YMMV.
Is this new? I tried the exact same thing just last week and it didn't work for me. -- BradAppleton
Ahh - I see what happened. I tried TAB ':' TAB (no space before the ':'). That extra space makes the difference (otherwise it gets interpreted as verbatim text).
Now if only I could split the paragraph across lines so I could use italic/bold in more than one place in the paragraph. Ward, have you upgraded Wiki to Perl5 yet? Can you make it use the "stingy" operator ('?') when matching RegularExpression-matching emboldened and italicized text? -- BradAppleton
My only complaint is that I can never remember this rule -- I have to visit this page about every other week to remind myself how to do it. Thanks for the ever-useful tip! -- BillTrost
Discussion on HTML tags moved to WhyDoesntWikiDoHtml.