## Here is an example for Javascript.
##
syntax "javascript" "\.js$"
color brightred "\<[A-Z_][0-9A-Z_]+\>"
color green "\<(const|function|let|this|typeof|var|void)\>"
color brightyellow "\<(for|if|while|with|do|else|case|default|switch)\>"
color brightyellow "\<(export|try|throw|catch|new|delete)\>"
color magenta "\<(continue|break|return|yield)\>"
color brightmagenta "'([^'\]|(\\["'abfnrtv\\]))'" "'\\(([0-3]?[0-7]{1,2}))'" "'\\x[0-9A-Fa-f]{1,2}'"

## String highlighting.  You will in general want your comments and
## strings to come last, because syntax highlighting rules will be
## applied in the order they are read in.
color brightyellow "<[^= 	]*>" ""(\\.|[^"])*"" "'(\\.|[^'])*'"

## Comment highlighting
color brightblue "//.*"
color brightblue start="/\*" end="\*/"

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