Minor refactoring

Author: cdoublev

lib/parse/parser.js

@@ -1138,15 +1138,15 @@ function parseCSSGrammar(input, definition, context, strategy = 'backtrack') {
     context.trees.push(root)
 
     let match = grammar.parse(root, parser)
-    parsing: while (!input.atEnd() && !isFailure(match)) {
-        switch (strategy) {
-            case 'greedy':
-                match = error({ message: 'Unexpected remaining component values' })
-            case 'lazy':
-                break parsing
-            default:
-                match = grammar.parse(root, parser)
+    while (!input.atEnd() && !isFailure(match)) {
+        if (strategy === 'greedy') {
+            match = error({ message: 'Unexpected remaining component values' })
+            break
+        }
+        if (strategy === 'lazy') {
+            break
         }
+        match = grammar.parse(root, parser)
     }
 
     context.trees.pop()