some simple additions to mc.ext

[borealcoyote]

I found that it was useful to add these to my mc.ext file:

# GNU Spreadsheet Calculator
regex/\.([Ss][Cc])$

Open=(sc %f)

# a prank, on any file in plain text format, .sc for instance
regex/\.(????...)$

Open=(tac %f) | rev | nl | most

# or pipe it through espeak instead of most

# playing ogg vorbis music files
regex/\.([0o][Gg][Gg])$

Open=(mplayer %f)