sffms2txt
Last night when I should have been sleeping, I was writing sffms2txt, a LaTeX-to-plain text converter for sffms or other simple LaTeX files—ostensibly so that I can send one of my stories to a market that requires plain text submissions.
The one exciting feature of sffms2txt that sets it above detex and query replace is the choice of pseudo-italics:
*single asterisks*
**double asterisks**
_single underscores_
__double underscores__
- or no distinguishing markup at all
The php source is available upon request.