Strip YouTube Caption Timestamps with Textmate

StripTimestamp.tmMacro

<?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>commands</key>
	<array>
		<dict>
			<key>command</key>
			<string>selectAll:</string>
		</dict>
		<dict>
			<key>argument</key>
			<dict>
				<key>action</key>
				<string>replaceAll</string>
				<key>findString</key>
				<string>\d+:\d+:\d+.\d+,\d+:\d+:\d+.\d+</string>
				<key>ignoreCase</key>
				<true/>
				<key>regularExpression</key>
				<true/>
				<key>replaceAllScope</key>
				<string>selection</string>
				<key>replaceString</key>
				<string></string>
				<key>wrapAround</key>
				<true/>
			</dict>
			<key>command</key>
			<string>findWithOptions:</string>
		</dict>
		<dict>
			<key>argument</key>
			<dict>
				<key>action</key>
				<string>replaceAll</string>
				<key>findString</key>
				<string>\n{2,}</string>
				<key>ignoreCase</key>
				<true/>
				<key>regularExpression</key>
				<true/>
				<key>replaceAllScope</key>
				<string>selection</string>
				<key>replaceString</key>
				<string>\n</string>
				<key>wrapAround</key>
				<true/>
			</dict>
			<key>command</key>
			<string>findWithOptions:</string>
		</dict>
		<dict>
			<key>argument</key>
			<dict>
				<key>action</key>
				<string>replaceAll</string>
				<key>findString</key>
				<string>,\s+</string>
				<key>ignoreCase</key>
				<true/>
				<key>regularExpression</key>
				<true/>
				<key>replaceAllScope</key>
				<string>selection</string>
				<key>replaceString</key>
				<string>,</string>
				<key>wrapAround</key>
				<true/>
			</dict>
			<key>command</key>
			<string>findWithOptions:</string>
		</dict>
	</array>
	<key>name</key>
	<string>Strip Timecodes</string>
	<key>uuid</key>
	<string>455B3685-5BE8-4E6F-9EAF-B8EF7DB2F252</string>
</dict>
</plist>

It doesn't insert spaces after commas because i thought you asked for your third step to be to remove these spaces. Probably should have asked before I made it that way, lol, as that's an insane thing to request.

You could probably do a simple find and replace for the brackets thing, same as you did for the commas (did you know you could replace with multiple lines? you can).

If you'll need this in the future I bet I could modify them, but I assume this is probably close enough?