in nanorc.sample, per John M. Gabriele's patch with a few tweaks by me,

add regexes for Ruby


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3602 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -452,6 +452,7 @@ CVS code -
 	  (John M. Gabriele)
 	- Simplify the extensions associated with the "nanorc" regexes.
 	  (DLR)
+	- Add regexes for Ruby. (John M. Gabriele, minor tweaks by DLR)
 - src/Makefile.am:
 	- If we're uninstalling, remove the "rnano" symlink. (DLR, found
 	  by Benno Schulenberg)

doc/nanorc.sample

@@ -322,6 +322,34 @@
 # color brightgreen start=""""[^"]" end=""""" start="'''[^']" end="'''"
 # color brightred "#.*$"
 
+## Here is an example for Ruby.
+# syntax "ruby" "\.rb$"
+## Asciibetical list of reserved words
+# color yellow "\<(BEGIN|END|alias|and|begin|break|case|class|def|defined\?|do|else|elsif|end|ensure|false|for|if|in|module|next|nil|not|or|redo|rescue|retry|return|self|super|then|true|undef|unless|until|when|while|yield)\>"
+## Constants
+# color brightblue "(\$|@|@@)?[A-Z]+[0-9A-Z_a-z]*"
+## Ruby "symbols"
+# icolor magenta "([ 	]|^):[0-9A-Z_]+\>"
+## Some unique things we want to stand out
+# color brightyellow "\<(__FILE__|__LINE__)\>"
+## Regular expressions
+# color brightmagenta "/([^/]|(\\/))*/[iomx]*" "%r\{([^}]|(\\}))*\}[iomx]*"
+## Shell command expansion is in `backticks` or like %x{this}.  These are
+## "double-quotish" (to use a perlism).
+# color brightblue "`[^`]*`" "%x\{[^}]*\}"
+## Strings, double-quoted
+# color green ""([^"]|(\\"))*"" "%[QW]?\{[^}]*\}" "%[QW]?\([^)]*\)" "%[QW]?<[^>]*>" "%[QW]?\[[^]]*\]" "%[QW]?\$[^$]*\$" "%[QW]?\^[^^]*\^" "%[QW]?![^!]*!"
+## Expression substitution.  These go inside double-quoted strings,
+## "like #{this}".
+# color brightgreen "#\{[^}]*\}"
+## Strings, single-quoted
+# color green "'([^']|(\\'))*'" "%[qw]\{[^}]*\}" "%[qw]\([^)]*\)" "%[qw]<[^>]*>" "%[qw]\[[^]]*\]" "%[qw]\$[^$]*\$" "%[qw]\^[^^]*\^" "%[qw]![^!]*!"
+## Comments
+# color cyan "#[^{].*$" "#$"
+# color brightcyan "##[^{].*$" "##$"
+## Some common markers
+# color brightcyan "(XXX|TODO|FIXME|\?\?\?)"
+
 ## Here is an example for Java source.
 ##
 # syntax "Java source" "\.java$"