Syntax Highlighting with nano - nanorc for conf

From NAS-Tweaks

# Generic *.conf file syntax highlighting
#

syntax "conf" "\.(c(onf|nf|fg))$"

# string
icolor yellow ""(\\.|[^"])*""

# variable name & value
icolor brightyellow start="=" end="$"
icolor magenta start="(^|[[:space:]])[0-9a-z-]" end="="

# bracket/parenthesis
icolor brightred "(^|[[:space:]])((\[|\()[0-9a-z_!@#$%^&*-]+(\]|\)))"

# number
color green "[[:space:]][0-9.KM]+"

# comment
color cyan start="(^|[[:space:]])(#|;).*$" end="$"
color brightblue "(^|[[:space:]])(#|;)"