Title: elisp-Hacks
YODL-mode
Mode (fontlock, really) for editing YODL-documents. (prerelease)

tinyFugue-mode
Mode (fontlock) for editing tinyFugue setup files. (very alpha)

bbcode-mode
Mode (excessively simple fontlock only) for editing bbcode (used in phpbboard, some weblogs, etc). It's not much, but the alternative seems to be "nothing at all." (alpha)

MUSHify!
Extremely simple. Converts current text buffer to the format used by tinyMUSHes. (More MUSH-foo, including MUX In A Minute 2.)

unfill-paragraph
Extremely simple.
unfill-paragraph-azou turns the individual lines of a paragraph into one long one, eliminating any indent.
unfill-paragraph-mush transforms the individual lines of a paragraph into one long one using unfill-paragraph-azou, eliminating any indent. It puts the result into the cut-and-paste buffer, with an extra \\ in front and a newline at the end for easy pasting into a MUSH or MUX online game. It adds an empty line after paragraph unless there already is one, font-locks (highlights quotes and such) and places the point (cursor) there. This makes it useful both for cutting-and-pasting from the MUSH window (tinyFugue within a terminal in my case) to xemacs (and reformat it properly), and for reformatting your own poses for pasting them from xemacs to the MUSH.

Patches against xemacs
Some patches against xemacs, like the tinting & shading patch for its text area, are available in a separate location.