From 9e3dfc650190e96739abc004eb9948afa68136b4 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Mon, 25 Dec 2017 14:29:18 +0100
Subject: [PATCH] patch 8.0.1426: "gf" and <cfile> don't accept ? and & in URL

Problem:    "gf" and <cfile> don't accept ? and & in URL. (Dmitrii Tcyganok)
Solution:   Check for a URL and allow for extra characters. (closes #2493)
---
 src/testdir/test_gf.vim |  7 ++++++-
 src/version.c           |  2 ++
 src/window.c            | 16 ++++++++++++++--
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/src/testdir/test_gf.vim b/src/testdir/test_gf.vim
index ef1bf1075..c35237969 100644
--- a/src/testdir/test_gf.vim
+++ b/src/testdir/test_gf.vim
@@ -7,7 +7,8 @@ func Test_gf_url()
       \ "first test for URL://machine.name/tmp/vimtest2a and other text",
       \ "second test for URL://machine.name/tmp/vimtest2b. And other text",
       \ "third test for URL:\\\\machine.name\\vimtest2c and other text",
-      \ "fourth test for URL:\\\\machine.name\\tmp\\vimtest2d, and other text"
+      \ "fourth test for URL:\\\\machine.name\\tmp\\vimtest2d, and other text",
+      \ "fifth test for URL://machine.name/tmp?q=vim&opt=yes and other text",
       \ ])
   call cursor(1,1)
   call search("^first")
@@ -28,6 +29,10 @@ func Test_gf_url()
   call search("URL")
   call assert_equal("URL:\\\\machine.name\\tmp\\vimtest2d", expand("<cfile>"))
 
+  call search("^fifth")
+  call search("URL")
+  call assert_equal("URL://machine.name/tmp?q=vim&opt=yes", expand("<cfile>"))
+
   set isf&vim
   enew!
 endfunc
diff --git a/src/version.c b/src/version.c
index f62287b5b..17547222f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1426,
 /**/
     1425,
 /**/
diff --git a/src/window.c b/src/window.c
index ffe4e38f8..a58fbbd7b 100644
--- a/src/window.c
+++ b/src/window.c
@@ -6081,7 +6081,6 @@ grab_file_name(long count, linenr_T *file_lnum)
 						     count, curbuf->b_ffname);
     }
     return file_name_at_cursor(options | FNAME_HYP, count, file_lnum);
-
 }
 
 /*
@@ -6120,6 +6119,8 @@ file_name_in_line(
 {
     char_u	*ptr;
     int		len;
+    int		in_type = TRUE;
+    int		is_url = FALSE;
 
     /*
      * search forward for what could be the start of a file name
@@ -6158,8 +6159,19 @@ file_name_in_line(
      */
     len = 0;
     while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ')
-			 || ((options & FNAME_HYP) && path_is_url(ptr + len)))
+			 || ((options & FNAME_HYP) && path_is_url(ptr + len))
+			 || (is_url && vim_strchr((char_u *)"?&=", ptr[len]) != NULL))
     {
+	/* After type:// we also include ?, & and = as valid characters, so that
+	 * http://google.com?q=this&that=ok works. */
+	if ((ptr[len] >= 'A' && ptr[len] <= 'Z') || (ptr[len] >= 'a' && ptr[len] <= 'z'))
+	{
+	    if (in_type && path_is_url(ptr + len + 1))
+		is_url = TRUE;
+	}
+	else
+	    in_type = FALSE;
+
 	if (ptr[len] == '\\')
 	    /* Skip over the "\" in "\ ". */
 	    ++len;
-- 
2.40.0