add support for characters to the "c-file" regexes

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2292 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -282,6 +282,7 @@ CVS code -
 	  characters 128-255 aren't ASCII. (DLR, suggested by Michael
 	  Piefel)
 	- Add the "morespace" option. (DLR)
+	- Add support for characters to the "c-file" regexes. (DLR)
 - nano.1. nanorc.5, nano.texi:
 	- Add the "morespace" option, and sync with the descriptions in
 	  nanorc.sample in a few places. (DLR)

doc/nanorc.sample

@@ -144,6 +144,7 @@
 # color green "\<(float|double|char|int|short|long|enum|void|static|const|struct|union|typedef|extern|signed|unsigned|inline)\>"
 # color brightyellow "\<(for|if|while|do|else|case|switch|goto|continue|break|return)\>"
 # color brightcyan "^ *# *(define|undef|include|ifn?def|endif|elif|else|if)"
+# color brightmagenta "'([^\]|(\\['abfnrtv\\]))'" "'\\(([0-7][0-7]?)|([0-3][0-7][0-7]))'" "'\\x[0-9A-Fa-f][0-9A-Fa-f]?'"
 ##
 ## You will in general want your comments and strings to come last,
 ## because syntax highlighting rules will be applied in the order they