Added Octave syntax highlighting to default conf. Thank you to Daniel…

…C for providing this.

diakonos-256-colour.conf

@@ -202,4 +202,3 @@ lang.interpolated_exec_ruby.tokens.interpolation.format 9 bold
 lang.coffee.tokens.character_codes.format magenta bold
 lang.coffee.tokens.long_comments.format 8 bold
 lang.coffee.tokens.sql_string.format 1
-

diakonos.conf

@@ -1597,6 +1597,39 @@ lang.lua.indent.unindenters ([}\])])
 lang.lua.indent.preventers (\".+?[^\\]\")|('.+?[^\\]')|(\/\/.*)
 lang.lua.indent.ignore ^(.+:|\s*?)$
 
+# Octave
+
+lang.octave.filemask \.m$
+lang.octave.bangmask #!.*octave
+lang.octave.format.default white
+lang.octave.format.selection inverse
+lang.octave.format.found yellow inverse
+lang.octave.tokens.constants \b([A-Z_]+|[A-Z_][A-Z0-9_]+)\b
+lang.octave.tokens.constants.format yellow bold
+lang.octave.tokens.comments (#.*)
+lang.octave.tokens.comments.format cyan
+lang.octave.comment_string "# "
+lang.octave.tokens.doublequoted_strings (\".*?[^\\]\")
+lang.octave.tokens.doublequoted_strings.format green bold
+lang.octave.tokens.singlequoted_strings ('.*?[^\\]')
+lang.octave.tokens.singlequoted_strings.format green bold
+lang.octave.tokens.backquoted_strings (`.*?[^\\]`)
+lang.octave.tokens.backquoted_strings.format red bold
+lang.octave.tokens.reserved_words \b(break|case|catch|continue|else|elseif|end|endif|endfor|endfunction|endwhile|false|for|function|global|if|otherwise|persistent|return|setenv|switch|true|try|while)\b
+lang.octave.tokens.reserved_words.format magenta bold
+lang.octave.tokens.non_alphanum [@!#$%^&*()\[\]{}/?=+\-\\|,<.>;:~]
+lang.octave.tokens.non_alphanum.format white
+lang.octave.tokens.numbers \b(([+-])?\d+(\.\d+)?(e\w+)?)\b
+lang.octave.tokens.numbers.format yellow bold
+lang.octave.indent.size 4
+lang.octave.indent.auto true
+lang.octave.indent.roundup true
+#lang.octave.indent.using_tabs true
+lang.octave.indent.indenters \b(case|catch|else|elseif|end|endif|endfor|endfunction|for|function|if|otherwise|switch|try|while)\b
+lang.octave.indent.unindenters \b(else|elseif|end|endif|endfor|endfunction|endwhile)\b
+lang.octave.indent.preventers (\".+?[^\\]\")|('.+?[^\\]')|(`.+?[^\\]`)|(^\s*#.*)
+lang.octave.indent.ignore ^\s*$
+
 # Other configuration files can be included.
 # If a setting is specified again, it overrides the previous setting given
 # higher up in the configuration file(s).