Mond syntax definition for Sublime Text and TextMate.

Mond.tmLanguage

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>fileTypes</key>
	<array>
		<string>mond</string>
		<string>mnd</string>
	</array>
	<key>name</key>
	<string>Mond</string>
	<key>patterns</key>
	<array>
		<dict>
			<key>match</key>
			<string>//.*?$</string>
			<key>name</key>
			<string>comment.line.double-slash.mond</string>
		</dict>
		<dict>
			<key>begin</key>
			<string>/\*</string>
			<key>end</key>
			<string>\*/</string>
			<key>name</key>
			<string>comment.block.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b(debugger)\b</string>
			<key>name</key>
			<string>keyword.other.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b(global|var|const|fun|seq)\b</string>
			<key>name</key>
			<string>storage.type.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b(null|true|false|NaN|Infinity)\b</string>
			<key>name</key>
			<string>constant.language.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b(return|yield|if|else|for(each)?|while|do|break|continue|switch|case|default)\b</string>
			<key>name</key>
			<string>keyword.control.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\!?\b(in)\b|([-|]&gt;)</string>
			<key>name</key>
			<string>keyword.operator.mond</string>
		</dict>
		<dict>
			<key>begin</key>
			<string>\'</string>
			<key>end</key>
			<string>\'</string>
			<key>name</key>
			<string>string.quoted.single.mond</string>
		</dict>
		<dict>
			<key>begin</key>
			<string>\"</string>
			<key>end</key>
			<string>\"</string>
			<key>name</key>
			<string>string.quoted.double.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b((0(b|B)[0-1_]*)|(0(x|X)[0-9a-fA-F_]*)|(([0-9]+\.?[0-9_]*)|(\.[0-9_]+))((e|E|p)(\+|-)?[0-9_]+)?)\b</string>
			<key>name</key>
			<string>constant.numeric.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b(Async|Task(CompletionSource)?|CancellationToken(Source)?|Random|Math|Char)\b</string>
			<key>name</key>
			<string>support.class.mond</string>
		</dict>
		<dict>
			<key>match</key>
			<string>\b(try|error|require|print(Ln)?|readLn)\b</string>
			<key>name</key>
			<string>support.function.mond</string>
		</dict>
	</array>
	<key>scopeName</key>
	<string>source.mond</string>
	<key>uuid</key>
	<string>0a4b2933-843d-45c6-bd2f-6615d69f3800</string>
</dict>
</plist>

Mond.YAML

# [PackageDev] target_format: plist, ext: tmLanguage
---
name: Mond
scopeName: source.mond
fileTypes: [ mond, mnd ]
uuid: 0a4b2933-843d-45c6-bd2f-6615d69f3800

# This syntax definition could be a lot more advanced,
# but it properly colours all the important stuff,
# so it's good enough for now.

patterns:
- name: comment.line.double-slash.mond
  match: //.*?$

# Note: because it's not possible to match nesting block comments
#       with anything but a full-blown Python plugin, we'll make do
#       with regexes that only match the start and end of block comments.
- name: comment.block.mond
  begin: /\*
  end: \*/

- name: keyword.other.mond
  match: \b(debugger)\b

- name: storage.type.mond
  match: \b(global|var|const|fun|seq)\b

- name: constant.language.mond
  match: \b(null|true|false|NaN|Infinity)\b

- name: keyword.control.mond
  match: \b(return|yield|if|else|for(each)?|while|do|break|continue|switch|case|default)\b

- name: keyword.operator.mond
  match: \!?\b(in)\b|([-|]>)

- name: string.quoted.single.mond
  begin: \'
  end: \'

- name: string.quoted.double.mond
  begin: \"
  end: \"

- name: constant.numeric.mond
  match: \b((0(b|B)[0-1_]*)|(0(x|X)[0-9a-fA-F_]*)|(([0-9]+\.?[0-9_]*)|(\.[0-9_]+))((e|E|p)(\+|-)?[0-9_]+)?)\b

- name: support.class.mond
  match: \b(Async|Task(CompletionSource)?|CancellationToken(Source)?|Random|Math|Char)\b

- name: support.function.mond
  match: \b(try|error|require|print(Ln)?|readLn)\b
...