# Capitalise first letter of each word (title case).
# By Greg Ubben and Al Aab.

sed '
G
s/$/aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ/
s/^\([a-z]\)\(.*\n.*\1\)\(.\)/\3\2\3/
: more
  s/\([^A-Z0-9a-z_]\)\([a-z]\)\(.*\n.*\2\)\(.\)/\1\4\3\4/
  t more
s/\n.*$//
'