Merge pull request #17 from daviditen/underscores-in-numbers

Improve literal numbers in tmbundle highlighting

[reviewed by @mppf]

* Add binary and octal integers
* Remove C-style suffixes for numbers
* Add support for underscores in numbers
* Add hexadecimal floating point numbers

Syntaxes/Chapel.tmLanguage

@@ -47,7 +47,7 @@
 		</dict>
 		<dict>
 			<key>match</key>
-			<string>\b((0(x|X)[0-9a-fA-F]*)|(([0-9]+\.?[0-9]*)|(\.[0-9]+))((e|E)(\+|-)?[0-9]+)?)(L|l|UL|ul|u|U|F|f|ll|LL|ull|ULL)?\b</string>
+			<string>\b((0(b|B)[0-1]([0-1]|_)*)|(0(o|O)[0-7]([0-7]|_)*)|(0(x|X)((([0-9a-fA-F]([0-9a-fA-F]|_)*\.?([0-9a-fA-F]([0-9a-fA-F]|_)*)?)|(\.[0-9a-fA-F]([0-9a-fA-F]|_)*))((p|P)(\+|-)?[0-9]([0-9]|_)*)?))|(0(x|X)[0-9a-fA-F]([0-9a-fA-F]|_)*)|((([0-9]([0-9]|_)*\.?([0-9]([0-9]|_)*)?)|(\.[0-9]([0-9]|_)*))((e|E)(\+|-)?[0-9]([0-9]|_)*)?))\b</string>
 			<key>name</key>
 			<string>constant.numeric.chapel</string>
 		</dict>