From 45615cedd10fb5dc3c502815ed4d98b6d4e4488a Mon Sep 17 00:00:00 2001
From: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date: Mon, 17 Aug 2020 18:43:40 -0400
Subject: vim-patch:8.2.1472: ":argdel" does not work like ":.argdel" as
 documented

Problem:    ":argdel" does not work like ":.argdel" as documented. (Alexey
            Demin)
Solution:   Make ":argdel" work like ":.argdel". (closes vim/vim#6727)
            Also fix giving the error "0 more files to edit".
https://github.com/vim/vim/commit/7b22117c4ecf383b6f35acef041773a83ec28220
---
 src/nvim/ex_cmds2.c               | 15 ++++++++++-----
 src/nvim/ex_docmd.c               |  2 +-
 src/nvim/testdir/test_arglist.vim | 10 ++++++++--
 3 files changed, 19 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/nvim/ex_cmds2.c b/src/nvim/ex_cmds2.c
index 7f4b01e306..7a06cb7ca6 100644
--- a/src/nvim/ex_cmds2.c
+++ b/src/nvim/ex_cmds2.c
@@ -1984,9 +1984,16 @@ void ex_argadd(exarg_T *eap)
 /// ":argdelete"
 void ex_argdelete(exarg_T *eap)
 {
-  if (eap->addr_count > 0) {
-    // ":1,4argdel": Delete all arguments in the range.
-    if (eap->line2 > ARGCOUNT) {
+  if (eap->addr_count > 0 || *eap->arg == NUL) {
+    // ":argdel" works like ":.argdel"
+    if (eap->addr_count == 0) {
+      if (curwin->w_arg_idx >= ARGCOUNT) {
+        EMSG(_("E610: No argument to delete"));
+        return;
+      }
+      eap->line1 = eap->line2 = curwin->w_arg_idx + 1;
+    } else if (eap->line2 > ARGCOUNT) {
+      // ":1,4argdel": Delete all arguments in the range.
       eap->line2 = ARGCOUNT;
     }
     linenr_T n = eap->line2 - eap->line1 + 1;
@@ -2016,8 +2023,6 @@ void ex_argdelete(exarg_T *eap)
           curwin->w_arg_idx = ARGCOUNT - 1;
       }
     }
-  } else if (*eap->arg == NUL) {
-    EMSG(_(e_argreq));
   } else {
     do_arglist(eap->arg, AL_DEL, 0);
   }
diff --git a/src/nvim/ex_docmd.c b/src/nvim/ex_docmd.c
index 064cebe016..1160ab835b 100644
--- a/src/nvim/ex_docmd.c
+++ b/src/nvim/ex_docmd.c
@@ -4949,7 +4949,7 @@ check_more(
   int n = ARGCOUNT - curwin->w_arg_idx - 1;
 
   if (!forceit && only_one_window()
-      && ARGCOUNT > 1 && !arg_had_last && n >= 0 && quitmore == 0) {
+      && ARGCOUNT > 1 && !arg_had_last && n > 0 && quitmore == 0) {
     if (message) {
       if ((p_confirm || cmdmod.confirm) && curbuf->b_fname != NULL) {
         char_u buff[DIALOG_MSG_SIZE];
diff --git a/src/nvim/testdir/test_arglist.vim b/src/nvim/testdir/test_arglist.vim
index 6e7583ade3..92fedf9bfb 100644
--- a/src/nvim/testdir/test_arglist.vim
+++ b/src/nvim/testdir/test_arglist.vim
@@ -397,9 +397,15 @@ func Test_argdelete()
   last
   argdelete %
   call assert_equal(['b'], argv())
-  call assert_fails('argdelete', 'E471:')
+  call assert_fails('argdelete', 'E610:')
   call assert_fails('1,100argdelete', 'E16:')
-  %argd
+
+  call Reset_arglist()
+  args a b c d
+  next
+  argdel
+  call Assert_argc(['a', 'c', 'd'])
+  %argdel
 endfunc
 
 func Test_argdelete_completion()
-- 
cgit