Mini Shell

## Colouring for Changelogs.

syntax changelog "Change[Ll]og[^/]*$"

# Author lines.
color green "^(19|20).*$"
# Dates.
color red "^(19|20)[0-9-]{8}"
# Email addresses.
color yellow "<[^>]*@[^>]*>"

# Command-line options.
color cyan "[[:space:]]-[a-zA-Z\$]" "--[8a-z-]+"
# Bug and patch numbers.
color cyan "(BZ|bug|patch) #[0-9]+" "PR [[:alnum:]]+/[0-9]+"
# Probable constants, for variety.
color brightred "\<[A-Z_][0-9A-Z_]+\>"
# Key sequences.
color brightblue "\^[A-Z^\]" "\<M-." "\<F1?[0-9]" "(\^|M-)Space"

# Changed files.
color magenta start="^(	| {8})\* " end="(:( |$)|^$)"

# Release markers.
color brightblue "^(GNU )?nano[- ][0-9]\.[0-9]\.[^ ]+"

# Trailing whitespace.
color ,green "[[:space:]]+$"