enh(ruby) support multi-line irb prompts (#3488)

CHANGES.md

@@ -10,6 +10,7 @@ New Grammars:
 
 Grammars:
 
+- enh(ruby ) better support multi-line IRB prompts
 - enh(bash) improved keyword `$pattern` (numbers allowed in command names) [Martin Mattel][]
 - fix(markdown) Handle `***Hello world***` without breaking [Josh Goebel][]
 - enh(php) add support for PHP Attributes [Wojciech Kania][]

src/languages/ruby.js

@@ -276,7 +276,7 @@ export default function(hljs) {
   // ?>
   const SIMPLE_PROMPT = "[>?]>";
   // irb(main):001:0>
-  const DEFAULT_PROMPT = "[\\w#]+\\(\\w+\\):\\d+:\\d+>";
+  const DEFAULT_PROMPT = "[\\w#]+\\(\\w+\\):\\d+:\\d+[>*]";
   const RVM_PROMPT = "(\\w+-)?\\d+\\.\\d+\\.\\d+(p\\d+)?[^\\d][^>]+>";
 
   const IRB_DEFAULT = [
@@ -292,6 +292,7 @@ export default function(hljs) {
       begin: '^(' + SIMPLE_PROMPT + "|" + DEFAULT_PROMPT + '|' + RVM_PROMPT + ')(?=[ ])',
       starts: {
         end: '$',
+        keywords: RUBY_KEYWORDS,
         contains: RUBY_DEFAULT_CONTAINS
       }
     }

test/markup/ruby/prompt.expect.txt

@@ -1,8 +1,8 @@
 <span class="hljs-meta">2.0.0p0 :001 &gt;</span> [<span class="hljs-string">&#x27;some&#x27;</span>]
  =&gt; [<span class="hljs-string">&quot;some&quot;</span>]
-<span class="hljs-meta">2.0.0p0 :002 &gt;</span> if true
+<span class="hljs-meta">2.0.0p0 :002 &gt;</span> <span class="hljs-keyword">if</span> <span class="hljs-literal">true</span>
 <span class="hljs-meta">2.0.0p0 :003?&gt;</span>   <span class="hljs-string">&quot;yop&quot;</span>
-<span class="hljs-meta">2.0.0p0 :004?&gt;</span>   end
+<span class="hljs-meta">2.0.0p0 :004?&gt;</span>   <span class="hljs-keyword">end</span>
  =&gt; <span class="hljs-string">&quot;yop&quot;</span>
 
 <span class="hljs-meta">jruby-1.7.16 :001 &gt;</span> <span class="hljs-string">&quot;RVM-Format&quot;</span>
@@ -13,11 +13,24 @@
 =&gt; [#&lt;OpenStruct integer=987, symbol=:so_great&gt;, #&lt;OpenStruct integer=987, symbol=:so_great&gt;, #&lt;OpenStruct integer=987, symbol=:so_great&gt;]
 <span class="hljs-meta">&gt;&gt;</span> {<span class="hljs-number">1</span> =&gt; obj, <span class="hljs-number">2</span> =&gt; obj}
 =&gt; {<span class="hljs-number">1</span>=&gt;#&lt;OpenStruct integer=987, symbol=:so_great&gt;, <span class="hljs-number">2</span>=&gt;#&lt;OpenStruct integer=987, symbol=:so_great&gt;}
-<span class="hljs-meta">&gt;&gt;</span> if <span class="hljs-number">10</span> &gt; <span class="hljs-number">20</span>
+<span class="hljs-meta">&gt;&gt;</span> <span class="hljs-keyword">if</span> <span class="hljs-number">10</span> &gt; <span class="hljs-number">20</span>
 <span class="hljs-meta">&gt;&gt;</span> <span class="hljs-string">&quot;YEAH&quot;</span>
-<span class="hljs-meta">&gt;&gt;</span> else
+<span class="hljs-meta">&gt;&gt;</span> <span class="hljs-keyword">else</span>
 <span class="hljs-meta">?&gt;</span> <span class="hljs-string">&quot;NO&quot;</span>
-<span class="hljs-meta">&gt;&gt;</span> end
+<span class="hljs-meta">&gt;&gt;</span> <span class="hljs-keyword">end</span>
 =&gt; <span class="hljs-string">&quot;NO&quot;</span>
 
 <span class="hljs-meta">irb(main):002:0&gt;</span> test = <span class="hljs-number">1</span>
+
+<span class="hljs-meta">irb(main):001:1*</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Secret</span></span>
+<span class="hljs-meta">irb(main):002:2*</span>   <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">[]</span><span class="hljs-params">(x)</span></span>
+<span class="hljs-meta">irb(main):003:2*</span>     <span class="hljs-string">&quot;TREASURE&quot;</span> <span class="hljs-keyword">if</span> x==<span class="hljs-number">42</span>
+<span class="hljs-meta">irb(main):004:1*</span>   <span class="hljs-keyword">end</span>
+<span class="hljs-meta">irb(main):005:0&gt;</span> <span class="hljs-keyword">end</span>
+=&gt; <span class="hljs-symbol">:[]</span>
+<span class="hljs-meta">irb(main):006:0&gt;</span> Secret.new[<span class="hljs-number">0</span>]
+=&gt; nil
+<span class="hljs-meta">irb(main):008:0&gt;</span> Secret.new[<span class="hljs-number">2239232</span>]
+=&gt; nil
+<span class="hljs-meta">irb(main):009:0&gt;</span> Secret.new[<span class="hljs-number">42</span>]
+=&gt; <span class="hljs-string">&quot;TREASURE&quot;</span>

test/markup/ruby/prompt.txt

@@ -21,3 +21,16 @@ jruby-1.7.16 :001 > "RVM-Format"
 => "NO"
 
 irb(main):002:0> test = 1
+
+irb(main):001:1* class Secret
+irb(main):002:2*   def [](x)
+irb(main):003:2*     "TREASURE" if x==42
+irb(main):004:1*   end
+irb(main):005:0> end
+=> :[]
+irb(main):006:0> Secret.new[0]
+=> nil
+irb(main):008:0> Secret.new[2239232]
+=> nil
+irb(main):009:0> Secret.new[42]
+=> "TREASURE"