SAS Language improvements

[cedporter]

Information

• Language: SAS

Description
I'd like to make some substantial improvements to the SAS language support. I've got a draft commit ready, but I'm having trouble with the "rest:" option. I can always leave it out for now, but if someone could give me some help here, I hope to get that working, add a test for it, and get a pull request in for the changes I've made.

Code snippet

My intention here is to capture "PROC SQL;" followed by any text up to and including the next "PROC \w", "QUIT", "RUN" or "DATA". The code that follows is what I have thus far. It does capture the text as expected, but it does not apply SQL syntax highlighting to the text after the "step".

	 'procSQL': {
	 	pattern: /(^|\n)(?:proc\s+sql);[\s\S]+?(?:\r?\n|\r)(?:proc\s\w+|quit|run|data(?!\=));/im,
	 	alias: 'string',
	 	inside: {
			'step': {
				pattern: /(^|\n)(?:proc\s+sql)/i,
				alias: 'keyword'
			},
	 		rest: Prism.languages.sql
	// 	}
	 },

[RunDevelopment]

@cedporter The problem isn't rest but Prism.languages.sql. Prism always tries to load as few languages as possible, so Prism.languages.sql is simply undefined.
You need to add a dependency for SQL in components.json using require (similar to how SASS requires CSS below). This should solve your problem.

[RunDevelopment]

#1981 is merged already.