Ruby syntax highlighting for Ruby

[Josef 'Jupp' SCHUGT]

Hi!

Add the following to $HOME/.nanorc for Ruby syntax highlighting in
Nano. Please report any issues - it is a quick and dirty hack.

#####################################################################
# Ruby syntax highlighting for Nano.
# Author: Josef 'Jupp' Schugt, jupp(a)rubyforge.org
# License: GPL 2 or later
# Version: 0.1 of 2004-02-20
#####################################################################

# Automatically use for '.rb' files
syntax "ruby" ".*\.*rb$"

# General
color white ".+"

# Operators
color brightyellow "::|\*\*|!|~|\*|/|%|\+|-|&|<<|>>|\|\^|>|>=|<|<="
color brightyellow "<=>|\|\||!=|=~|!~|&&|+=|-=|=|\.\.|\.\.\."
color brightyellow "\<not\>|\<and\>|\<or\>"

# Keywords
color brightyellow "\<(BEGIN|END|alias|and|begin|break|case)\>"
color brightyellow "\<(class|def|defined|do|else|elsif|end)\>"
color brightyellow "\<(ensure|for|if|in|module|next|not|or|redo)\>"
color brightyellow "\<(rescue|retry|return|self|super|then|undef)\>"
color brightyellow "\<(unless|until|when|while|yield)\>"

# false, nil, true
color magenta "\<(false|nil|true)\>"

# Above must not match 'nil?'
color white "\<nil\?"

# external stuff
color brightgreen "\<(load|require|%q|%!|%Q|%r|%x)"

# Iterators
color brightgreen "\|\w*\|"

# Constants
color yellow "\<[A-Z]\w*\>"

# Symbols
color yellow "([ \t]|^)@|@@|\$)?\w+\>"

# Strings
color green "\"(\\.|[^\\\"])*\"|'(\\.|[^\\'])*'"

# Backticks
color green "`(\\.|[^\\\"])*`"

# Regular expressions
color green "/(\\.|[^\\/])*/[imox]*"

# Escapes
color red "\\[0-7][0-7][0-7]|\\x[0-9a-fA-F][0-9a-fA-F]"
color red "\\[abefnrs]"
color red "(\\c|\\C-|\\M-|\\M-\\C-)."

# Expression substitution
color red "#{[^}]*}|#(@|@@|\$)\w+"

# Simple comments
color cyan "#([^{].*)?$"

# Shebang
color brightcyan "^#!.*"

# Multiline comments
color cyan start="^=begin" end="^=end"

#####################################################################
# For this to be functional Nano must be compiled to read
# $HOME/.nanorc and support syntax highlighting.
#####################################################################

Josef 'Jupp' SCHUGT

 

[Josef 'Jupp' SCHUGT]

Hi!

Oops :->
Well, a Ruby syntax highlighter in Ruby would be interesting, too.

Josef 'Jupp' Schugt

 

[Chris Pine]

Great! Thanks.

I am getting the following errors, though:


Error in /root/.nanorc on line 16: Bad regex
"<=>|\|\||!=|=~|!~|&&|+=|-=|=|\.\.|\.\.\.": Invalid preceding regular
expression
Press return to continue starting nano


Error in /root/.nanorc on line 59: Bad regex "#{[^}]*}|#(@|@@|\$)\w+":
Invalid content of \{\}
Press return to continue starting nano



My nano -V gives:

GNU nano version 1.2.2 (compiled 11:27:12, Oct 11 2003)
Email: (e-mail address removed) Web: http://www.nano-editor.org/
Compiled
options: --disable-justify --enable-color --enable-multibuffer --enable-nano
rc

 

[Josef 'Jupp' SCHUGT]

Hi!

* Chris Pine:
[Errors while nano parses syntax highlighting for Ruby]

My nano -V gives:

GNU nano version 1.2.2 (compiled 11:27:12, Oct 11 2003)

Try nano 1.2.3 and report if the problem persists.

Josef 'Jupp' SCHUGT

 

[denis]

Hi!

* Chris Pine:
[Errors while nano parses syntax highlighting for Ruby]

My nano -V gives:

GNU nano version 1.2.2 (compiled 11:27:12, Oct 11 2003)

Try nano 1.2.3 and report if the problem persists.

Josef 'Jupp' SCHUGT

There were some missing escape backslashes, here are the regexps that work for
me (nano 1.2.3)

# Operators
color brightyellow "::|\*\*|!|~|\*|/|%|\+|-|&|<<|>>|\|\^|>|>=|<|<="
color brightyellow "<=>|\|\||!=|=~|!~|&&|\+=|-=|=|\.\.|\.\.\."
color brightyellow "\<not\>|\<and\>|\<or\>"

# Expression substitution
color red "#\{[^}]*\}|#(@|@@|\$)\w+"

 

[Josef 'Jupp' SCHUGT]

Hi!

* denis:

[Errors while nano parses syntax highlighting for Ruby]

There were some missing escape backslashes, here are the regexps that work for
me (nano 1.2.3)
color brightyellow "<=>|\|\||!=|=~|!~|&&|\+=|-=|=|\.\.|\.\.\."

The difference is that '+=' has been changed to '\+='. Very strange.
My nano should have complained about that - but it didn't :-<

# Expression substitution
color red "#\{[^}]*\}|#(@|@@|\$)\w+"

Here '#{[^}]*}' has been replaced by '#\{[^}]*\}': Again no error
message here 8-|

Josef 'Jupp' Schugt