From fa6be88874701555f08f21efa035675c7e80e3cf Mon Sep 17 00:00:00 2001
From: "byte[]" <byteslice@airmail.cc>
Date: Wed, 27 Nov 2019 16:27:31 -0500
Subject: [PATCH] fix link parsing

---
 lib/textile/lexer.ex     | 30 ++++++++++++++++--------------
 lib/textile/parser.ex    |  2 +-
 lib/textile/url_lexer.ex | 19 +++++++++++++++----
 3 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/lib/textile/lexer.ex b/lib/textile/lexer.ex
index 3364455f..b9f2705c 100644
--- a/lib/textile/lexer.ex
+++ b/lib/textile/lexer.ex
@@ -123,20 +123,22 @@ defmodule Textile.Lexer do
   {link_markup_start, link_markup_element} = markup_ending_in(string("\""))
 
   link_stop =
-    choice([
-      space(),
-      string("*"),
-      string("_"),
-      string("@"),
-      string("+"),
-      string("^"),
-      string("-"),
-      string("~"),
-      string("."),
-      string("?"),
-      string("!"),
-      string(",")
-    ])
+    repeat(
+      choice([
+        string("*"),
+        string("_"),
+        string("@"),
+        string("+"),
+        string("^"),
+        string("-"),
+        string("~"),
+        string("."),
+        string("?"),
+        string("!"),
+        string(","),
+      ])
+    )
+    |> choice([space(), eos()])
 
   link_contents_start =
     choice([
diff --git a/lib/textile/parser.ex b/lib/textile/parser.ex
index 6bcebb4a..2c890d6f 100644
--- a/lib/textile/parser.ex
+++ b/lib/textile/parser.ex
@@ -179,7 +179,7 @@ defmodule Textile.Parser do
   #   link_start well_formed_including_paragraphs link_end link_url;
   #
   defp link(parser, [{:link_start, start} | r_tokens]) do
-    case well_formed_including_paragraphs(parser, nil, r_tokens) do
+    case well_formed_including_paragraphs(parser, :link_end, r_tokens) do
       {:ok, tree, [{:link_end, _end}, {:link_url, url} | r2_tokens]} ->
         {:ok, [{:markup, ~s|<a href="#{escape_html(url)}">|}, tree, {:markup, ~s|</a>|}], r2_tokens}
 
diff --git a/lib/textile/url_lexer.ex b/lib/textile/url_lexer.ex
index 443e74f1..212224de 100644
--- a/lib/textile/url_lexer.ex
+++ b/lib/textile/url_lexer.ex
@@ -2,13 +2,24 @@ defmodule Textile.UrlLexer do
   import NimbleParsec
 
   def url_ending_in(ending_sequence) do
-    protocol =
+    domain =
+      repeat(
+        choice([
+          ascii_char([?a..?z]) |> string(".") |> ascii_char([?a..?z]),
+          ascii_char([?a..?z])
+        ])
+      )
+
+    scheme_and_domain =
       choice([
-        string("/"), string("https://"), string("http://"), string("data:image/")
+        string("/"),
+        string("data:image/"),
+        string("https://") |> concat(domain),
+        string("http://") |> concat(domain)
       ])
 
-    protocol
-    |> repeat(lookahead_not(ending_sequence) |> utf8_char([]))
+    scheme_and_domain
+    |> repeat(utf8_char([]) |> lookahead_not(ending_sequence))
     |> reduce({List, :to_string, []})
   end
 end
\ No newline at end of file