From 33c6754592063c94b4e8598675f1f2d46fc9a49e Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Mon, 18 Feb 2019 18:45:29 +0700
Subject: [PATCH] fix parser

---
 lib/auto_linker/builder.ex |  3 +--
 lib/auto_linker/parser.ex  | 28 ++++++++++++++++++++++++----
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/lib/auto_linker/builder.ex b/lib/auto_linker/builder.ex
index be0ed26..a46ccf4 100644
--- a/lib/auto_linker/builder.ex
+++ b/lib/auto_linker/builder.ex
@@ -117,11 +117,10 @@ defmodule AutoLinker.Builder do
 
     url = mention_prefix <> name
 
-    []
+    [href: url]
     |> build_attrs(url, opts, :rel)
     |> build_attrs(url, opts, :target)
     |> build_attrs(url, opts, :class)
-    |> build_attrs(url, opts, :scheme)
     |> format_mention(name, opts)
   end
 
diff --git a/lib/auto_linker/parser.ex b/lib/auto_linker/parser.ex
index 7374df0..14cb785 100644
--- a/lib/auto_linker/parser.ex
+++ b/lib/auto_linker/parser.ex
@@ -378,23 +378,43 @@ defmodule AutoLinker.Parser do
   def link_hashtag(nil, buffer, _, _user_acc), do: buffer
 
   def link_hashtag(hashtag, buffer, %{hashtag_handler: hashtag_handler} = opts, user_acc) do
-    hashtag_handler.(hashtag, buffer, opts, user_acc)
+    hashtag
+    |> hashtag_handler.(buffer, opts, user_acc)
+    |> maybe_update_buffer(hashtag, buffer)
   end
 
   def link_hashtag(hashtag, buffer, opts, _user_acc) do
-    Builder.create_hashtag_link(hashtag, buffer, opts)
+    hashtag
+    |> Builder.create_hashtag_link(buffer, opts)
+    |> maybe_update_buffer(hashtag, buffer)
   end
 
   def link_mention(nil, buffer, _, user_acc), do: {buffer, user_acc}
 
   def link_mention(mention, buffer, %{mention_handler: mention_handler} = opts, user_acc) do
-    mention_handler.(mention, buffer, opts, user_acc)
+    mention
+    |> mention_handler.(buffer, opts, user_acc)
+    |> maybe_update_buffer(mention, buffer)
   end
 
   def link_mention(mention, buffer, opts, _user_acc) do
-    Builder.create_mention_link(mention, buffer, opts)
+    mention
+    |> Builder.create_mention_link(buffer, opts)
+    |> maybe_update_buffer(mention, buffer)
   end
 
+  defp maybe_update_buffer(out, match, buffer) when is_binary(out) do
+    maybe_update_buffer({out, nil}, match, buffer)
+  end
+
+  defp maybe_update_buffer({out, user_acc}, match, buffer)
+       when match != buffer and out != buffer do
+    out = String.replace(buffer, match, out)
+    {out, user_acc}
+  end
+
+  defp maybe_update_buffer(out, _match, _buffer), do: out
+
   def link_phone(nil, buffer, _), do: buffer
 
   def link_phone(list, buffer, opts) do