From 8c04a9d3900572b54560726bf878ac0a620acb64 Mon Sep 17 00:00:00 2001
From: Type-kun <workwork-1@yandex.ru>
Date: Tue, 6 Sep 2016 01:06:29 +0500
Subject: [PATCH] Fix #2598 for old parser

---
 app/logical/d_text.rb   | 13 +++++++++++--
 test/unit/dtext_test.rb |  4 ++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/app/logical/d_text.rb b/app/logical/d_text.rb
index 236a36650..ec165638e 100644
--- a/app/logical/d_text.rb
+++ b/app/logical/d_text.rb
@@ -193,7 +193,7 @@ class DText
       str.gsub!(/\[\/code\]\s*/m, "\n\n[/code]\n\n")
       str.gsub!(/\s*\[spoilers?\](?!\])\s*/m, "\n\n[spoiler]\n\n")
       str.gsub!(/\s*\[\/spoilers?\]\s*/m, "\n\n[/spoiler]\n\n")
-      str.gsub!(/^(h[1-6]\.\s*.+)$/, "\n\n\\1\n\n")
+      str.gsub!(/^(h[1-6](\#[A-z][_A-z0-9-]+)?\.\s*.+)$/, "\n\n\\1\n\n")
       str.gsub!(/\s*\[expand(\=[^\]]*)?\](?!\])\s*/m, "\n\n[expand\\1]\n\n")
       str.gsub!(/\s*\[\/expand\]\s*/m, "\n\n[/expand]\n\n")
       str.gsub!(/\s*\[table\](?!\])\s*/m, "\n\n[table]\n\n")
@@ -217,7 +217,16 @@ class DText
         else
           "<#{tag}>" + parse_inline(content, options) + "</#{tag}>"
         end
-
+       when /\A(h[1-6])\#([A-z][_A-z0-9-]+)\.\s*(.+)\Z/
+        tag = $1
+        header_id = $2
+        content = $3
+        
+        if options[:inline]
+          "<h6 id=\"#{header_id}\">" + parse_inline(content, options) + "</h6>"
+        else
+          "<#{tag} id=\"#{header_id}\">" + parse_inline(content, options) + "</#{tag}>"
+        end
       when /^\s*\*+ /
         parse_list(block, options)
 
diff --git a/test/unit/dtext_test.rb b/test/unit/dtext_test.rb
index 5a05b3e02..709672333 100644
--- a/test/unit/dtext_test.rb
+++ b/test/unit/dtext_test.rb
@@ -75,6 +75,10 @@ class DTextTest < ActiveSupport::TestCase
   def test_headers
     assert_equal("<h1>header</h1>", p("h1. header"))
   end
+  
+  def test_headers_with_ids
+    assert_equal("<h1 id=\"header-id\">header</h1>", p("h1#header-id. header"))
+  end
 
   def test_quote_blocks
     assert_equal('<blockquote><p>test</p></blockquote>', p("[quote]\ntest\n[/quote]"))