feat(erb): add HTML onEnterRules

Author: hayesr

packages/vscode-ruby/language-configuration-erb.json

@@ -27,5 +27,29 @@
 		["`", "`"],
 		["<", ">"],
 		["%", "%"]
+	],
+	"onEnterRules": [
+		{
+			"beforeText": {
+				"pattern": "<(?!(?:area|base|br|col|embed|hr|img|input|keygen|link|menuitem|meta|param|source|track|wbr))([_:\\w][_:\\w-.\\d]*)(?:(?:[^'\"/>]|\"[^\"]*\"|'[^']*')*?(?!\\/)>)[^<]*$",
+				"flags": "i"
+			},
+			"afterText": {
+				"pattern": "^<\\/([_:\\w][_:\\w-.\\d]*)\\s*>",
+				"flags": "i"
+			},
+			"action": {
+				"indent": "indentOutdent"
+			}
+		},
+		{
+			"beforeText": {
+				"pattern": "<(?!(?:area|base|br|col|embed|hr|img|input|keygen|link|menuitem|meta|param|source|track|wbr))([_:\\w][_:\\w-.\\d]*)(?:(?:[^'\"/>]|\"[^\"]*\"|'[^']*')*?(?!\\/)>)[^<]*$",
+				"flags": "i"
+			},
+			"action": {
+				"indent": "indent"
+			}
+		}
 	]
 }