## Syntax highlighting for Javascript.

syntax javascript "\.js$"
comment "//"

# Declarational stuff.
color cyan "\<(async|class|const|extends|function|let|this|typeof|var|void)\>"
# Flow control and special keywords.
color cyan "\<(do|while|if|else|switch|case|default|for|each|in|of|with)\>"
color cyan "\<(await|export|import|throw|try|catch|finally|new|delete)\>"
# "Exit" points.
color magenta "\<(break|continue|return|yield|this)\>"
# Operators - note, we require proper spacing to prevent false positives
color red "(^|[[:space:]])(&&|\|\||>=?|<=?|===?|!==?)([[:space:]]|$)"
color red "!"

# Strings.
color yellow ""(\\.|[^"])*"" "'(\\.|[^'])*'" "`(\\.|[^`])*`"
# And regex
color yellow "/.*[^\\]/"

# Comments.
color green "(^|[[:space:]])//.*"
color green start="/\*" end="\*/"

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