#nano javascript syntax highlighting
The existing syntax highlighting is located in /usr/share/nano/
To add a new language
sudo nano /usr/share/nano/javascript.nanorc
Put the following in the contents:
### all *js files ( e.g. Firefox user.js, prefs.js )
## Old version
#syntax "jsfiles" "(\.|/|)js$"
#color green "//.*$" start="\/\*" end="\*\/"
#color blue "'(\\.|[^'])*'"
#color red ""(\\.|[^\"])*""
#color brightgreen "\<(true)\>"
#color brightred "\<(false)\>" "http\:\/\/.*$"
#color brightmagenta "[0-9](\\.|[^\"])*)"
## New updated taken from http://wiki.linuxhelp.net/index.php/Nano_Syntax_Highlighting
syntax "JavaScript" "\.(js)$"
## Default
color white "^.+$"
## Decimal, cotal and hexadecimal numbers
color yellow "\<[-+]?([1-9][0-9]*|0[0-7]*|0x[0-9a-fA-F]+)([uU][lL]?|[lL][uU]?)?\>"
## Floating point number with at least one digit before decimal point
color yellow "\<[-+]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+)([EePp][+-]?[0-9]+)?[fFlL]?"
color yellow "\<[-+]?([0-9]+[EePp][+-]?[0-9]+)[fFlL]?"
## Keywords
color green "\<(break|case|catch|continue|default|delete|do|else|finally)\>"
color green "\<(for|function|if|in|instanceof|new|null|return|switch)\>"
color green "\<(switch|this|throw|try|typeof|undefined|var|void|while|with)\>"
## Type specifiers
color red "\<(Array|Boolean|Date|Enumerator|Error|Function|Math)\>"
color red "\<(Number|Object|RegExp|String)\>"
color red "\<(true|false)\>"
## String
color brightyellow "L?\"(\\"|[^"])*\""
color brightyellow "L?'(\'|[^'])*'"
## Escapes
color red "\\[0-7][0-7]?[0-7]?|\\x[0-9a-fA-F]+|\\[bfnrt'"\?\\]"
## Comments
color magenta start="/\*" end="\*/"
color magenta "//.*$"
Add the new language to the .nanorc
nano ~/.nanorc
Add the line
include /usr/share/nano/javascript.nanorc
http://askubuntu.com/questions/90013/how-do-i-enable-syntax-highlighting-in-nano
https://github.com/serialhex/nano-highlight/blob/master/js.nanorc