snippet using inner context

lib/liquid/tags/render.rb

@@ -69,12 +69,18 @@ module Liquid
       # Inline snippets take precedence over external snippets
       if (inline_snippet = context.registers[:inline_snippet][template_name])
         inner_context = context.new_isolated_subcontext
+        # binding.irb
+        snippet_body = inline_snippet[:body]
+        snippet_args = inline_snippet[:args]
 
+        # Validate and set the arguments in the inner context
         @attributes.each do |key, value|
-          inner_context[key] = context.evaluate(value)
+          if snippet_args.include?(key)
+            inner_context[key] = context.evaluate(value)
+          end
         end
 
-        return output << inline_snippet.render(inner_context)
+        return output << snippet_body.render(inner_context)
       end
 
       partial = PartialCache.load(

lib/liquid/tags/snippet.rb

@@ -14,17 +14,15 @@ module Liquid
   #     value
   #   {% endsnippet %}
   class Snippet < Block
-    SYNTAX = /(#{QuotedString}+) +\|(#{VariableSegment}*)\|/o
+    SYNTAX = /(#{QuotedString})(?:\s*\|\s*([\w\s,]+)\s*\|)?/o
     def initialize(tag_name, markup, options)
       super
 
       if markup =~ SYNTAX
-        # binding.irb
         @to = Regexp.last_match(1)
-        arg = Regexp.last_match(2)
+        args = Regexp.last_match(2)
 
-        @args = []
-        @args << arg if arg
+        @args = args ? args.split(/\s*,\s*/) : []
       else
         raise SyntaxError, options[:locale].t("errors.syntax.snippet")
       end
@@ -32,7 +30,10 @@ module Liquid
 
     def render(context)
       context.registers[:inline_snippet] ||= {}
-      context.registers[:inline_snippet][snippet_id] = snippet_body
+      context.registers[:inline_snippet][snippet_id] = {
+        body: snippet_body,
+        args: @args,
+      }
       ''
     end