modes.initial.processDoctype = function()

in lib/ace/mode/html/saxparser.js [2532:2644]
101 lines of code
30 McCabe index (conditional complexity)

	modes.initial.processDoctype = function(name, publicId, systemId, forceQuirks) {
		tree.insertDoctype(name || '', publicId || '', systemId || '');

		if (forceQuirks || name != 'html' || (publicId != null && ([
					"+//silmaril//dtd html pro v0r11 19970101//",
					"-//advasoft ltd//dtd html 3.0 aswedit + extensions//",
					"-//as//dtd html 3.0 aswedit + extensions//",
					"-//ietf//dtd html 2.0 level 1//",
					"-//ietf//dtd html 2.0 level 2//",
					"-//ietf//dtd html 2.0 strict level 1//",
					"-//ietf//dtd html 2.0 strict level 2//",
					"-//ietf//dtd html 2.0 strict//",
					"-//ietf//dtd html 2.0//",
					"-//ietf//dtd html 2.1e//",
					"-//ietf//dtd html 3.0//",
					"-//ietf//dtd html 3.0//",
					"-//ietf//dtd html 3.2 final//",
					"-//ietf//dtd html 3.2//",
					"-//ietf//dtd html 3//",
					"-//ietf//dtd html level 0//",
					"-//ietf//dtd html level 0//",
					"-//ietf//dtd html level 1//",
					"-//ietf//dtd html level 1//",
					"-//ietf//dtd html level 2//",
					"-//ietf//dtd html level 2//",
					"-//ietf//dtd html level 3//",
					"-//ietf//dtd html level 3//",
					"-//ietf//dtd html strict level 0//",
					"-//ietf//dtd html strict level 0//",
					"-//ietf//dtd html strict level 1//",
					"-//ietf//dtd html strict level 1//",
					"-//ietf//dtd html strict level 2//",
					"-//ietf//dtd html strict level 2//",
					"-//ietf//dtd html strict level 3//",
					"-//ietf//dtd html strict level 3//",
					"-//ietf//dtd html strict//",
					"-//ietf//dtd html strict//",
					"-//ietf//dtd html strict//",
					"-//ietf//dtd html//",
					"-//ietf//dtd html//",
					"-//ietf//dtd html//",
					"-//metrius//dtd metrius presentational//",
					"-//microsoft//dtd internet explorer 2.0 html strict//",
					"-//microsoft//dtd internet explorer 2.0 html//",
					"-//microsoft//dtd internet explorer 2.0 tables//",
					"-//microsoft//dtd internet explorer 3.0 html strict//",
					"-//microsoft//dtd internet explorer 3.0 html//",
					"-//microsoft//dtd internet explorer 3.0 tables//",
					"-//netscape comm. corp.//dtd html//",
					"-//netscape comm. corp.//dtd strict html//",
					"-//o'reilly and associates//dtd html 2.0//",
					"-//o'reilly and associates//dtd html extended 1.0//",
					"-//spyglass//dtd html 2.0 extended//",
					"-//sq//dtd html 2.0 hotmetal + extensions//",
					"-//sun microsystems corp.//dtd hotjava html//",
					"-//sun microsystems corp.//dtd hotjava strict html//",
					"-//w3c//dtd html 3 1995-03-24//",
					"-//w3c//dtd html 3.2 draft//",
					"-//w3c//dtd html 3.2 final//",
					"-//w3c//dtd html 3.2//",
					"-//w3c//dtd html 3.2s draft//",
					"-//w3c//dtd html 4.0 frameset//",
					"-//w3c//dtd html 4.0 transitional//",
					"-//w3c//dtd html experimental 19960712//",
					"-//w3c//dtd html experimental 970421//",
					"-//w3c//dtd w3 html//",
					"-//w3o//dtd w3 html 3.0//",
					"-//webtechs//dtd mozilla html 2.0//",
					"-//webtechs//dtd mozilla html//",
					"html"
				].some(publicIdStartsWith)
				|| [
					"-//w3o//dtd w3 html strict 3.0//en//",
					"-/w3c/dtd html 4.0 transitional/en",
					"html"
				].indexOf(publicId.toLowerCase()) > -1
				|| (systemId == null && [
					"-//w3c//dtd html 4.01 transitional//",
					"-//w3c//dtd html 4.01 frameset//"
				].some(publicIdStartsWith)))
			)
			|| (systemId != null && (systemId.toLowerCase() == "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"))
		) {
			tree.compatMode = "quirks";
			tree.parseError("quirky-doctype");
		} else if (publicId != null && ([
				"-//w3c//dtd xhtml 1.0 transitional//",
				"-//w3c//dtd xhtml 1.0 frameset//"
			].some(publicIdStartsWith)
			|| (systemId != null && [
				"-//w3c//dtd html 4.01 transitional//",
				"-//w3c//dtd html 4.01 frameset//"
			].indexOf(publicId.toLowerCase()) > -1))
		) {
			tree.compatMode = "limited quirks";
			tree.parseError("almost-standards-doctype");
		} else {
			if ((publicId == "-//W3C//DTD HTML 4.0//EN" && (systemId == null || systemId == "http://www.w3.org/TR/REC-html40/strict.dtd"))
				|| (publicId == "-//W3C//DTD HTML 4.01//EN" && (systemId == null || systemId == "http://www.w3.org/TR/html4/strict.dtd"))
				|| (publicId == "-//W3C//DTD XHTML 1.0 Strict//EN" && (systemId == "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"))
				|| (publicId == "-//W3C//DTD XHTML 1.1//EN" && (systemId == "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"))
			) {
				// warning
				//tree.warn("obsolete-doctype");
			} else if (!((systemId == null || systemId == "about:legacy-compat") && publicId == null)) {
				tree.parseError("unknown-doctype");
			}
		}
		tree.setInsertionMode('beforeHTML');
		function publicIdStartsWith(string) {
			return publicId.toLowerCase().indexOf(string) === 0;
		}
	};