vim-patch:7.4.1119

Problem:    argidx() has a wrong value after ":%argdelete". (Yegappan
            Lakshmanan)
Solution:   Correct the value of w_arg_idx.  Add a test.

72defda84e

src/nvim/ex_cmds2.c

@@ -1861,11 +1861,17 @@ void ex_argdelete(exarg_T *eap)
       } else if (curwin->w_arg_idx > eap->line1) {
         curwin->w_arg_idx = (int)eap->line1;
       }
+      if (ARGCOUNT == 0) {
+          curwin->w_arg_idx = 0;
+      } else if (curwin->w_arg_idx >= ARGCOUNT) {
+          curwin->w_arg_idx = ARGCOUNT - 1;
       }
-  } else if (*eap->arg == NUL)
+    }
+  } else if (*eap->arg == NUL) {
     EMSG(_(e_argreq));
-  else
+  } else {
     do_arglist(eap->arg, AL_DEL, 0);
+  }
   maketitle();
 }
 

src/nvim/version.c

@@ -563,7 +563,7 @@ static int included_patches[] = {
   // 1122 NA
   // 1121,
   1120,
-  // 1119,
+  1119,
   1118,
   1117,
   1116,

test/functional/legacy/arglist_spec.lua

@@ -0,0 +1,31 @@
+-- Test argument list commands
+
+local helpers = require('test.functional.helpers')
+local clear, feed, insert = helpers.clear, helpers.feed, helpers.insert
+local execute, expect = helpers.execute, helpers.expect
+local eq, eval = helpers.eq, helpers.eval
+
+describe('argument list commands', function()
+  before_each(clear)
+
+  it('is working', function()
+    execute('args a b c')
+    execute('last')
+    eq(2, eval('argidx()'))
+    execute('%argdelete')
+    eq(0, eval('argidx()'))
+
+    execute('args a b c')
+    eq(0, eval('argidx()'))
+    execute('next')
+    eq(1, eval('argidx()'))
+    execute('next')
+    eq(2, eval('argidx()'))
+    execute('1argdelete')
+    eq(1, eval('argidx()'))
+    execute('1argdelete')
+    eq(0, eval('argidx()'))
+    execute('1argdelete')
+    eq(0, eval('argidx()'))
+  end)
+end)