Fix expansion of #, &, %, etc. in mail copy and file commands.

This was accidentally broken by commit eea2c4aa.

* include/mailutils/mailbox.h (mu_mailbox_expand_name): New proto.
* libmailutils/mailbox/mbx_default.c (mu_mailbox_expand_name): New function.
(mu_mailbox_create_default): Use it.
(mu_set_folder_directory): Accept NULL as argument.
(mu_folder_directory): Reset default value after assiging it.  This way
the folder directory still defaults to the same value as earlier, but
can be reset to NULL, if so desired.
(plus_expand): Return a copy of the input string if folder is NULL.

* mail/copy.c (append_to_mailbox): Use mu_mailbox_create, as the mailbox
name has already been expanded.
* mail/file.c (mail_expand_name): Use mu_mailbox_expand_name.
(mail_file): Use mu_mailbox_create, as the mailbox
name has already been expanded.
* mail/mailvar.c (mailvar_cmd): New enum.
(mailvar_symbol) <handler>: Change signature and return type.
(mailvar_set): Rewrite. Take care not to modify the variable
if the handler (if any) returns non-null or if the memory can't
be allocated.
(set_folder): Handler for the "folder" variable.

* mail/tests/copy01.at: New testcase.
* mail/tests/copy02.at: New testcase.
* mail/tests/copy03.at: New testcase.
* mail/tests/copy04.at: New testcase.
* mail/tests/Makefile.am: Add new tests.
* mail/tests/testsuite.at (MUT_MAIL_CMD): Set MAILRC to /dev/null.
Add new tests.

@@ -36,6 +36,8 @@ const char *mu_mailbox_url (void);
 const char *mu_folder_directory (void);
 int mu_construct_user_mailbox_url (char **pout, const char *name);
 
+int mu_mailbox_expand_name (const char *name, char **expansion);
+  
 /* Constructor/destructor and possible types.  */
 extern int  mu_mailbox_create          (mu_mailbox_t *, const char *);
 extern int  mu_mailbox_create_from_url (mu_mailbox_t *, mu_url_t);

@@ -117,9 +117,17 @@ mu_set_mailbox_pattern (const char *pat)
 int
 mu_set_folder_directory (const char *p)
 {
-  char *fdir = strdup (p);
-  if (!fdir)
-    return ENOMEM;
+  char *fdir;
+
+  if (p)
+    {
+      fdir = strdup (p);
+      if (!fdir)
+	return ENOMEM;
+    }
+  else
+    fdir = NULL;
+  
   if (_mu_folder_dir != _default_folder_dir)
     free (_mu_folder_dir);
   _mu_folder_dir = fdir;
@@ -127,7 +135,7 @@ mu_set_folder_directory (const char *p)
 }
 
 const char *
-mu_mailbox_url ()
+mu_mailbox_url (void)
 {
   if (_mu_mailbox_pattern)
     return _mu_mailbox_pattern;
@@ -135,10 +143,13 @@ mu_mailbox_url ()
 }
 
 const char *
-mu_folder_directory ()
+mu_folder_directory (void)
 {
-  if (!_mu_folder_dir)
-    _mu_folder_dir = _default_folder_dir;
+  if (!_mu_folder_dir && _default_folder_dir)
+    {
+      mu_set_folder_directory (_default_folder_dir);
+      _default_folder_dir = NULL;
+    }
   return _mu_folder_dir;
 }
 
@@ -286,30 +297,40 @@ user_mailbox_name (const char *user, char **mailbox_name)
 static int
 plus_expand (const char *file, char **buf)
 {
-  char *home;
+  int rc = 0;
   const char *folder_dir = mu_folder_directory ();
 
-  home = get_homedir (NULL);
-  if (!home)
-    return ENOENT;
-  
-  file++;
-  
-  if (folder_dir[0] == '/' || mu_is_proto (folder_dir))
+  if (!folder_dir)
     {
-      *buf = mu_make_file_name (folder_dir, file);
-      if (!*buf)
-	return errno;
+      char *p = strdup (file);
+      if (!p)
+	return ENOMEM;
+      *buf = p;
     }
   else
     {
-      int rc = mu_asprintf (buf, "%s/%s/%s", home, folder_dir, file);
-      if (rc)
-	return rc;
+      file++;
+  
+      if (folder_dir[0] == '/' || mu_is_proto (folder_dir))
+	{
+	  char *p = mu_make_file_name (folder_dir, file);
+	  if (!p)
+	    return errno;
+	  *buf = p;
+	}
+      else
+	{
+	  char *home = get_homedir (NULL);
+      
+	  if (!home)
+	    return ENOENT;
+      
+	  rc = mu_asprintf (buf, "%s/%s/%s", home, folder_dir, file);
+	  free (home);
+	}
     }
   
-  free (home);
-  return 0;
+  return rc;
 }
 
 static int
@@ -374,21 +395,75 @@ attach_auth_ticket (mu_mailbox_t mbox)
     }
 }
 
-/* We are trying to be smart about the location of the mail.
-   mu_mailbox_create() is not doing this.
-   %           --> system mailbox for the real uid
-   %user       --> system mailbox for the given user
-   ~/file      --> /home/user/file
-   ~user/file  --> /home/user/file
-   +file       --> /home/user/Mail/file
-   =file       --> /home/user/Mail/file
-*/
+/* Expand mailbox name according to the following rules:
+
+   NAME            Expands to
+   -------------+------------------------------------
+   %            -> system mailbox for the real uid
+   %user        -> system mailbox for the given user
+   ~/file       -> /home/user/file
+   ~user/file   -> /home/user/file
+   +file        -> /home/user/Mail/file
+   =file        -> /home/user/Mail/file
+ */
 int
-mu_mailbox_create_default (mu_mailbox_t *pmbox, const char *mail)
+mu_mailbox_expand_name (const char *name, char **expansion)
 {
-  char *mbox = NULL;
-  char *tmp_mbox = NULL;
+  int status = 0;
   char *p;
+  char *mbox = NULL;
+  
+  if (!name)
+    return EINVAL;
+  if (!expansion)
+    return MU_ERR_OUT_PTR_NULL;
+
+  p = mu_tilde_expansion (name, MU_HIERARCHY_DELIMITER, NULL);
+  if (!p)
+    return errno;
+  switch (p[0])
+    {
+    case '%':
+      status = percent_expand (p, &mbox);
+      break;
+      
+    case '+':
+    case '=':
+      status = plus_expand (p, &mbox);
+      break;
+  
+    case '/':
+      mbox = p;
+      p = NULL;
+      break;
+      
+    default:
+      if (!mu_is_proto (p))
+	{
+	  char *dir = mu_getcwd();
+	  mbox = mu_make_file_name (dir, p);
+	  if (!mbox)
+	    status = errno;
+	  free (dir);  
+	}
+      else
+	{
+	  mbox = p;
+	  p = NULL;
+	}
+    }
+  free (p);
+  if (status == 0)
+    *expansion = mbox;
+  return status;
+}
+
+/* Expand mailbox name MAIL and create a mailbox structure for it. */
+int
+mu_mailbox_create_default (mu_mailbox_t *pmbox, const char *mail)
+{
+  char *mboxname = NULL;
+  char *name_ptr = NULL;
   int status = 0;
 
   /* Sanity.  */
@@ -412,63 +487,19 @@ mu_mailbox_create_default (mu_mailbox_t *pmbox, const char *mail)
 
       if (!mail)
 	{
-	  if ((status = user_mailbox_name (NULL, &tmp_mbox)))
+	  if ((status = user_mailbox_name (NULL, &name_ptr)))
 	    return status;
-	  mail = tmp_mbox;
-	}
-    }
-  
-  p = mu_tilde_expansion (mail, MU_HIERARCHY_DELIMITER, NULL);
-  if (tmp_mbox)
-    free (tmp_mbox);
-  tmp_mbox = p;
-  mail = tmp_mbox;
-  if (!mail)
-    return ENOMEM;
-
-  switch (mail[0])
-    {
-    case '%':
-      status = percent_expand (mail, &mbox);
-      break;
-      
-    case '+':
-    case '=':
-      status = plus_expand (mail, &mbox);
-      break;
-
-    case '/':
-      mbox = strdup (mail);
-      if (!mbox)
-	status = errno;
-      break;
-      
-    default:
-      if (!mu_is_proto (mail))
-	{
-	  p = mu_getcwd();
-	  mbox = mu_make_file_name (p, mail);
-	  if (!mbox)
-	    status = errno;
-	  free (p);  
-	}
-      else
-	{
-	  mbox = strdup (mail);
-	  if (!mbox)
-	    status = errno;
+	  mail = name_ptr;
 	}
-      break;
     }
 
-  if (tmp_mbox)
-    free (tmp_mbox);
-
+  status = mu_mailbox_expand_name (mail, &mboxname);
+  free (name_ptr);
   if (status)
     return status;
   
-  status = mu_mailbox_create (pmbox, mbox);
-  free (mbox);
+  status = mu_mailbox_create (pmbox, mboxname);
+  free (mboxname);
   if (status == 0)
     attach_auth_ticket (*pmbox);
       

@@ -40,7 +40,7 @@ append_to_mailbox (char const *filename, msgset_t *msglist, int mark,
   size_t size;
   mu_message_t msg;
   
-  if ((status = mu_mailbox_create_default (&mbx, filename)) != 0)
+  if ((status = mu_mailbox_create (&mbx, filename)) != 0)
     {
       mu_error (_("Cannot create mailbox %s: %s"), filename, 
                    mu_strerror (status));
@@ -96,7 +96,7 @@ append_to_file (char const *filename, msgset_t *msglist, int mark,
   size_t lines;
   mu_message_t msg;
   mu_locker_t locker;
-  
+
   status = mu_file_stream_create (&ostr, filename,
 				  MU_STREAM_CREAT|MU_STREAM_APPEND);
   if (status)

@@ -23,44 +23,43 @@ static char *prev_name;
  * #	    the previous file
  * &	    the current mbox
  * +file    the file named in the folder directory (set folder=foo)
- * Note 1) The followig notations are left intact, since they are
- * handled by mu_mailbox_create_default:
  * %	    system mailbox
- * %user    system mailbox of the user 
- * Note 2) Allocates memory
+ * %user    system mailbox of the user
  */
 char *
 mail_expand_name (const char *name)
 {
-  switch (name[0])
+  int status = 0;
+  char *exp = NULL;
+    
+  if (strcmp (name, "#") == 0)
     {
-    case '#':
       if (!prev_name)
 	{
 	  mu_error (_("No previous file"));
 	  return NULL;
 	}
       else
-	name = mu_strdup (prev_name);
-      break;
-	  
-    case '&':
+	return mu_strdup (prev_name);
+    }
+
+  if (strcmp (name, "&") == 0)
+    {
       name = getenv ("MBOX");
       if (!name)
-	mu_error (_("MBOX environment variable not set"));
-      else
-	name = mu_strdup (name);
-      break;
-	  
-    case '+':
-      name = util_folder_path (name);
-      break;
-
-    default:
-      name = mu_strdup (name);
-      break;
+	{
+	  mu_error (_("MBOX environment variable not set"));
+	  return NULL;
+	}
+      /* else fall through */
     }
-  return (char*) name;
+
+  status = mu_mailbox_expand_name (name, &exp);
+
+  if (status)
+    mu_error (_("Failed to expand %s: %s"), name, mu_strerror (status));
+
+  return (char*) exp;
 }
 
 /*
@@ -87,7 +86,7 @@ mail_file (int argc, char **argv)
       if (!name)
 	return 1;
       
-      if ((status = mu_mailbox_create_default (&newbox, name)) != 0 
+      if ((status = mu_mailbox_create (&newbox, name)) != 0 
 	  || (status = mu_mailbox_open (newbox, MU_STREAM_RDWR)) != 0)
 	{
 	  mu_mailbox_destroy (&newbox);

@@ -538,10 +538,10 @@ compile_headline (const char *str)
 static struct header_segm *mail_header_line;
 
 void
-mail_compile_headline (struct mailvar_variable *var)
+mail_compile_headline (char const *str)
 {
   free_headline (mail_header_line);
-  mail_header_line = compile_headline (var->value.string);
+  mail_header_line = compile_headline (str);
 }
 
 

@@ -330,6 +330,7 @@ static char *default_setup[] = {
   "set noinplacealiases",
   "set fromfield",
   "set headline=\"%>%a%4m %18f %16d %3L/%-5o %s\"",
+  "unset folder",
   
   /* Start in mail reading mode */
   "setq mode=read",

@@ -193,7 +193,7 @@ extern int mail_folders (int argc, char **argv);
 extern int mail_followup (int argc, char **argv);
 extern int mail_from (int argc, char **argv);
 extern int mail_from0 (msgset_t *mspec, mu_message_t msg, void *data);
-extern void mail_compile_headline (struct mailvar_variable *var);
+extern void mail_compile_headline (char const *str);
 
 extern int mail_headers (int argc, char **argv);
 extern int mail_hold (int argc, char **argv);

@@ -22,20 +22,34 @@
 
 #define MAILVAR_TYPEMASK(type) (1<<(8+(type)))
 
+enum mailvar_cmd
+  {
+    mailvar_cmd_set,
+    mailvar_cmd_unset
+  };
+
 struct mailvar_symbol
 {
   struct mailvar_variable var;
   int flags;
   char *descr;
-  void (*handler) (struct mailvar_variable *);
+  int (*handler) (enum mailvar_cmd, struct mailvar_variable *);
 };
 
 mu_list_t mailvar_list = NULL;
 
-static void set_decode_fallback (struct mailvar_variable *);
-static void set_replyregex (struct mailvar_variable *);
-static void set_screen (struct mailvar_variable *);
-static void set_debug (struct mailvar_variable *);
+static int set_decode_fallback (enum mailvar_cmd cmd,
+				struct mailvar_variable *);
+static int set_replyregex (enum mailvar_cmd cmd,
+			   struct mailvar_variable *);
+static int set_screen (enum mailvar_cmd cmd,
+		       struct mailvar_variable *);
+static int set_debug (enum mailvar_cmd cmd,
+		      struct mailvar_variable *);
+static int set_folder (enum mailvar_cmd cmd,
+		       struct mailvar_variable *);
+static int set_headline (enum mailvar_cmd,
+			 struct mailvar_variable *);
   
 struct mailvar_symbol mailvar_tab[] =
   {
@@ -119,7 +133,8 @@ struct mailvar_symbol mailvar_tab[] =
       N_("swap the meaning of reply and Reply commands") },
     { { "folder", },
       MAILVAR_TYPEMASK (mailvar_type_string), 
-      N_("folder directory name") },
+      N_("folder directory name"),
+      set_folder },
     { { "fromfield", },
       MAILVAR_TYPEMASK (mailvar_type_boolean),
       N_("get sender address from the `From:' header, instead of "
@@ -133,7 +148,7 @@ struct mailvar_symbol mailvar_tab[] =
     { { "headline", },
       MAILVAR_TYPEMASK (mailvar_type_string),
       N_("format string to use for the header summary"),
-      mail_compile_headline },
+      set_headline },
     { { "hold", },
       MAILVAR_TYPEMASK (mailvar_type_boolean),
       N_("hold the read or saved messages in the system mailbox") },
@@ -471,9 +486,10 @@ int
 mailvar_set (const char *variable, void *value, enum mailvar_type type,
 	     int flags)
 {
-  struct mailvar_variable *var;
+  struct mailvar_variable *var, newvar;
   const struct mailvar_symbol *sym = find_mailvar_symbol (variable);
-  int unset = flags & MOPTF_UNSET;
+  enum mailvar_cmd cmd =
+    (flags & MOPTF_UNSET) ? mailvar_cmd_unset : mailvar_cmd_set;
   
   if (!(flags & MOPTF_QUIET)
       && mailvar_get (NULL, "variable-strict", mailvar_type_boolean, 0) == 0)
@@ -488,95 +504,174 @@ mailvar_set (const char *variable, void *value, enum mailvar_type type,
 	  return 1;
 	}
       else if (!(sym->flags & MAILVAR_TYPEMASK (type))
-	       && !unset)
+	       && cmd == mailvar_cmd_set)
 	{
 	  mu_error (_("Wrong type for %s"), variable);
 	  return 1;
 	}
     }
 
-  var = mailvar_find_variable (variable, !unset);
+  var = mailvar_find_variable (variable, cmd == mailvar_cmd_set);
 
   if (!var || (var->set && !(flags & MOPTF_OVERWRITE)))
     return 0;
 
-  mailvar_variable_reset (var);
-  if (!unset)
+  newvar.name = var->name;
+  newvar.type = var->type;
+  newvar.set = 0;
+  memset (&newvar.value, 0, sizeof (newvar.value));
+  
+  switch (cmd)
     {
-      var->type = type;
+    case mailvar_cmd_set:
       if (value)
 	{
-	  var->set = 1;
 	  switch (type)
 	    {
 	    case mailvar_type_number:
-	      var->value.number = *(int*)value;
+	      newvar.value.number = *(int*)value;
 	      break;
 	  
 	    case mailvar_type_string:
-	      var->value.string = strdup (value);
+	      {
+		char *p = strdup (value);
+		if (!p)
+		  {
+		    mu_error ("%s", _("Not enough memory"));
+		    return 1;
+		  }
+		newvar.value.string = p;
+	      }
 	      break;
 	  
 	    case mailvar_type_boolean:
-	      var->value.bool = *(int*)value;
+	      newvar.value.bool = *(int*)value;
 	      break;
 		  
 	    default:
 	      abort();
 	    }
+	  newvar.set = 1;
+	}
+      newvar.type = type;
+      if (sym
+	  && sym->handler
+	  && sym->flags & MAILVAR_TYPEMASK (type)
+	  && sym->handler (cmd, &newvar))
+	{
+	  mailvar_variable_reset (&newvar);
+	  return 1;
 	}
+      mailvar_variable_reset (var);
+      *var = newvar;
+      break;
+
+    case mailvar_cmd_unset:
+      if (sym
+	  && sym->handler
+	  && sym->handler (cmd, var))
+	return 1;
+      mailvar_variable_reset (var);
     }
-    
-  /* Special handling for some variables */
-  if (sym && sym->flags & MAILVAR_TYPEMASK (type) && sym->handler)
-    sym->handler (var);
+
+  return 0;
+}
+
+static int
+set_folder (enum mailvar_cmd cmd, struct mailvar_variable *var)
+{
+  int rc = mu_set_folder_directory (var->value.string);
+  if (rc)
+    mu_diag_funcall (MU_DIAG_ERROR, "mu_set_folder_directory",
+		     var->value.string, rc);
+  return rc;
+}
+		   
+
+static int
+set_headline (enum mailvar_cmd cmd, struct mailvar_variable *var)
+{
+  if (cmd == mailvar_cmd_unset)
+    return 1;
   
+  mail_compile_headline (var->value.string);
   return 0;
 }
 
-
-static void
-set_decode_fallback (struct mailvar_variable *var)
+static int
+set_decode_fallback (enum mailvar_cmd cmd, struct mailvar_variable *var)
 {
-  if (mu_set_default_fallback (var->value.string))
+  char *value;
+  int rc;
+  
+  switch (cmd)
+    {
+    case mailvar_cmd_set:
+      value = var->value.string;
+      break;
+
+    case mailvar_cmd_unset:
+      value = "none";
+    }
+  
+  rc = mu_set_default_fallback (value);
+  if (rc)
     mu_error (_("Incorrect value for decode-fallback"));
+  return rc;
 }
 
-static void
-set_replyregex (struct mailvar_variable *var)
+static int
+set_replyregex (enum mailvar_cmd cmd, struct mailvar_variable *var)
 {
   int rc;
   char *err;
-  
-  if ((rc = mu_unre_set_regex (var->value.string, 0, &err)))
+
+  switch (cmd)
     {
-      if (err)
-	mu_error ("%s: %s", mu_strerror (rc), err);
-      else
-	mu_error ("%s", mu_strerror (rc));
+    case mailvar_cmd_set:
+      if ((rc = mu_unre_set_regex (var->value.string, 0, &err)))
+	{
+	  if (err)
+	    mu_error ("%s: %s", mu_strerror (rc), err);
+	  else
+	    mu_error ("%s", mu_strerror (rc));
+	  return 1;
+	}
+      break;
+
+    case mailvar_cmd_unset:
+      return 1;
     }
+
+  return 0;
 }
 
-static void
-set_screen (struct mailvar_variable *var)
+static int
+set_screen (enum mailvar_cmd cmd, struct mailvar_variable *var)
 {
-  page_invalidate (1);
+  if (cmd == mailvar_cmd_set)
+    page_invalidate (1);
+  return 0;
 }
 
 #define DEFAULT_DEBUG_LEVEL  MU_DEBUG_LEVEL_UPTO (MU_DEBUG_TRACE7)
 
-static void
-set_debug (struct mailvar_variable *var)
+static int
+set_debug (enum mailvar_cmd cmd, struct mailvar_variable *var)
 {
   mu_debug_clear_all ();
 
-  if (var->type == mailvar_type_boolean)
+  if (cmd == mailvar_cmd_set)
     {
-      if (var->set)
-        mu_debug_set_category_level (MU_DEBCAT_ALL, DEFAULT_DEBUG_LEVEL);
-      return;
+      if (var->type == mailvar_type_boolean)
+	{
+	  if (var->set)
+	    mu_debug_set_category_level (MU_DEBCAT_ALL, DEFAULT_DEBUG_LEVEL);
+	  return 0;
+	}
+      mu_debug_parse_spec (var->value.string);
     }
-  mu_debug_parse_spec (var->value.string); 
+  return 0;
 }
 
 

@@ -42,6 +42,10 @@ TESTSUITE_AT =\
  cols00.at\
  cols01.at\
  copy00.at\
+ copy01.at\
+ copy02.at\
+ copy03.at\
+ copy04.at\
  nohome.at\
  testsuite.at\
  version.at

@@ -24,7 +24,6 @@ AT_KEYWORDS([columns cols00])
 
 AT_CHECK([
 MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
-unset MAILRC
 COLUMNS=26 MUT_MAIL_CMD -nH -E 'set columns=26' -f ./mbox
 COLUMNS=31 MUT_MAIL_CMD -nH -f ./mbox
 ],

@@ -24,7 +24,6 @@ AT_KEYWORDS([columns cols01])
 
 AT_CHECK([
 MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
-unset MAILRC
 MUT_MAIL_CMD -nH -E 'set columns=26' -f ./mbox
 MUT_MAIL_CMD -nH -E 'set columns=31' -f ./mbox
 ],

@@ -25,7 +25,6 @@ AT_KEYWORDS([copy copy00])
 AT_CHECK([
 test -f /dev/stdout || AT_SKIP_TEST
 MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
-unset MAILRC
 echo 'copy 1 /dev/stdout' | MUT_MAIL_CMD -N -E 'set readonly' -f ./mbox | sed 's/  *$//;/^Held 1 message/d';
 ],
 [0],

+# This file is part of GNU Mailutils. -*- Autotest -*-
+# Copyright (C) 2015-2016 Free Software Foundation, Inc.
+#
+# GNU Mailutils is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3, or (at
+# your option) any later version.
+#
+# GNU Mailutils is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>.
+
+AT_SETUP([copy: % expansion])
+AT_KEYWORDS([copy copy01])
+
+# Description: Check whether special mailbox notations are correctly expanded
+# in copy command.  This was broken by commit eea2c4aa.
+#
+# This testcase checks for expansion of "%".
+
+AT_CHECK([
+MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
+mbox=`pwd`/user
+echo 'copy 1 %' | dnl
+ MUT_MAIL_CMD -N -f ./mbox --set '|mailbox|mailbox-pattern'=$mbox | dnl
+ sed 's/  *$//;/^Held 1 message/d;s|'$mbox'|MBOX|'
+cmp user $abs_top_srcdir/testsuite/spool/mbox
+],
+[0],
+["MBOX"  14/438
+
+])
+
+AT_CLEANUP

+# This file is part of GNU Mailutils. -*- Autotest -*-
+# Copyright (C) 2015-2016 Free Software Foundation, Inc.
+#
+# GNU Mailutils is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3, or (at
+# your option) any later version.
+#
+# GNU Mailutils is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>.
+
+AT_SETUP([copy: + expansion])
+AT_KEYWORDS([copy copy02])
+
+# Description: Check whether special mailbox notations are correctly expanded
+# in copy command.  This was broken by commit eea2c4aa.
+#
+# This testcase checks for expansion of "+".
+
+AT_CHECK([
+MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
+mkdir folder
+folder=`pwd`/folder
+echo 'copy 1 +saved' | dnl
+ MUT_MAIL_CMD -N -E "set folder=\"$folder\"" -f ./mbox | dnl
+ sed 's/  *$//;/^Held 1 message/d;s|'$folder/saved'|MBOX|'
+test -f $folder/saved || exit 1 
+cmp $folder/saved $abs_top_srcdir/testsuite/spool/mbox
+],
+[0],
+["MBOX"  14/438
+
+])
+
+AT_CLEANUP

+# This file is part of GNU Mailutils. -*- Autotest -*-
+# Copyright (C) 2015-2016 Free Software Foundation, Inc.
+#
+# GNU Mailutils is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3, or (at
+# your option) any later version.
+#
+# GNU Mailutils is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>.
+
+AT_SETUP([copy: & expansion])
+AT_KEYWORDS([copy copy03])
+
+# Description: Check whether special mailbox notations are correctly expanded
+# in copy command.  This was broken by commit eea2c4aa.
+#
+# This testcase checks for expansion of "&".
+
+AT_CHECK([
+MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
+mkdir folder
+MBOX=`pwd`/MBOX
+export MBOX
+echo 'copy 1 &' | dnl
+ MUT_MAIL_CMD -N -E "set folder=\"$folder\"" -f ./mbox  | dnl
+ sed 's/  *$//;/^Held 1 message/d;s|'$MBOX'|MBOX|'
+test -f $MBOX || exit 1 
+cmp $MBOX $abs_top_srcdir/testsuite/spool/mbox
+],
+[0],
+["MBOX"  14/438
+
+])
+
+AT_CLEANUP

+# This file is part of GNU Mailutils. -*- Autotest -*-
+# Copyright (C) 2015-2016 Free Software Foundation, Inc.
+#
+# GNU Mailutils is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3, or (at
+# your option) any later version.
+#
+# GNU Mailutils is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>.
+
+AT_SETUP([copy: # expansion])
+AT_KEYWORDS([copy copy04])
+
+# Description: Check whether special mailbox notations are correctly expanded
+# in copy command.  This was broken by commit eea2c4aa.
+#
+# This testcase checks for expansion of "#".
+
+AT_CHECK([
+MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
+folder=`pwd`
+MBOX=$folder/mbox
+NEW=$folder/new
+>$NEW
+AT_DATA([script],[file +new
+file +mbox
+copy 1 #
+])
+MUT_MAIL_CMD -N -E "set folder=\"$folder\"" -f $MBOX < script  | dnl
+ sed 's/  *$//;s|'$NEW'|NEW|;s|'$MBOX'|MBOX|'
+sed '/^X-IMAPbase:/d;/^Status:/d;/^X-UID/d' $NEW | diff - $abs_top_srcdir/testsuite/spool/mbox 
+],
+[0],
+[Held 1 message in MBOX
+Held 0 messages in NEW
+"NEW"  17/482
+
+Held 1 message in MBOX
+])
+
+AT_CLEANUP

@@ -24,7 +24,6 @@ AT_KEYWORDS([nohome])
 
 AT_CHECK([
 MUT_MBCOPY($abs_top_srcdir/testsuite/spool/mbox)
-unset MAILRC
 unset HOME
 MAIL=./mbox MUT_MAIL_CMD -nH
 ],

@@ -16,7 +16,7 @@
 
 m4_include([testsuite.inc])
 
-m4_define([MUT_MAIL_CMD],[mail MUT_DEFAULT_OPTIONS])
+m4_define([MUT_MAIL_CMD],[MAILRC=/dev/null mail MUT_DEFAULT_OPTIONS])
 
 AT_INIT
 AT_TESTED([mail])
@@ -25,4 +25,8 @@ m4_include([version.at])
 m4_include([nohome.at])
 m4_include([cols00.at])
 m4_include([cols01.at])
-m4_include([copy00.at])
\ No newline at end of file
+m4_include([copy00.at])
+m4_include([copy01.at])
+m4_include([copy02.at])
+m4_include([copy03.at])
+m4_include([copy04.at])