nano/syntax/groff.nanorc

## Syntax highlighting for groff.

syntax groff "\.(m[ems]|rof|tmac)$|/tmac\.[^/]+$"
comment ".\""

# The argument of .ds or .nr
color cyan "^\.(ds|nr) [^[:space:]]*"
# Single-character escapes
color brightmagenta "\\."
# The argument of \f or \s in the same color
color brightmagenta "\\f(.|\(..)" "\\s(\+|\-)?[0-9]"
# Newlines
color cyan "\\(\\)?n(.|\(..)"
color cyan start="\\(\\)?n\[" end="]"
# Requests
color brightgreen "^\.[[:blank:]]*[^[:space:]]*"
# Comments
color yellow "^\.\\".*"
# Strings
color green "\\(\\)?\*(.|\(..)"
color green start="\\(\\)?\*\[" end="]"
# Characters
color brightred "\\\(.."
color brightred start="\\\[" end="]"
# Macro arguments
color brightcyan "\\\\\$[1-9]"