Fix something commented in PrismJS#780

components/prism-crystal.js

@@ -1,16 +1,14 @@
 (function(Prism) {
 	Prism.languages.crystal = Prism.languages.extend('ruby', {
-		number: /\b(?:0b[01_]*[01]|0o[0-7_]*[0-7]|0x[0-9a-fA-F_]*[0-9a-fA-F]|(?:[0-9][0-9_]*[0-9]|[0-9])(?:\.[0-9_]*[0-9])?(?:[eE][+-]?[0-9_]*[0-9])?)(?:_[uif](?:8|16|32|64|))?\b/,
-	});
-
-	Prism.languages.insertBefore('crystal', 'operator', {
 		keyword: [
 			/\b(?:abstract|alias|as|asm|begin|break|case|class|def|do|else|elsif|end|ensure|enum|extend|for|fun|if|ifdef|include|instance_sizeof|lib|macro|module|next|of|out|pointerof|private|protected|rescue|return|require|self|sizeof|struct|super|then|type|typeof|undef|union|unless|until|when|while|with|yield|__DIR__|__FILE__|__LINE__)\b/,
 			{
-				pattern: /(\.\s*)(is_a|responds_to)\?/,
+        pattern: /(\.\s*)(?:is_a|responds_to)\?/,
 				lookbehind: true
 			}
-		]
+		],
+
+		number: /\b(?:0b[01_]*[01]|0o[0-7_]*[0-7]|0x[0-9a-fA-F_]*[0-9a-fA-F]|(?:[0-9](?:[0-9_]*[0-9])?)(?:\.[0-9_]*[0-9])?(?:[eE][+-]?[0-9_]*[0-9])?)(?:_(?:[uif](?:8|16|32|64))?)?\b/,
 	});
 
 	var rest = Prism.util.clone(Prism.languages.crystal);
@@ -25,8 +23,9 @@
 					alias: 'tag'
 				},
 				rest: rest
-			},
+			}
 		},
+
 		expansion: [
 			{
 				pattern: /\{\{.+?\}\}/,

examples/prism-crystal.html

@@ -25,5 +25,9 @@ <h2>Known failures</h2>
 	If a failure is listed here, it doesn’t mean it will never be fixed. This is more of a “known bugs” list, just with a certain type of bug.
 </p>
 
-<h3>Numbers ending underscore</h3>
-<pre><code>123_</code></pre>
+<h3>Attriubte-like substrings</h3>
+<pre><code>" @[AlwaysInline] "</code></pre>
+
+<h3>Macro expansions in strings</h3>
+<pre><code>" {{ foo }} "
+" {% bar %} "</code></pre>