Base version of ncurses-5.7 library
diff --git a/form/fld_newftyp.c b/form/fld_newftyp.c
new file mode 100644
index 0000000..c2984b1
--- /dev/null
+++ b/form/fld_newftyp.c
@@ -0,0 +1,135 @@
+/****************************************************************************
+ * Copyright (c) 1998-2004,2007 Free Software Foundation, Inc.              *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *   Author:  Juergen Pfeifer, 1995,1997                                    *
+ ****************************************************************************/
+
+#include "form.priv.h"
+
+MODULE_ID("$Id: fld_newftyp.c,v 1.15 2007/10/13 19:30:55 tom Exp $")
+
+static FIELDTYPE const default_fieldtype =
+{
+  0,				/* status                                      */
+  0L,				/* reference count                             */
+  (FIELDTYPE *)0,		/* pointer to left  operand                    */
+  (FIELDTYPE *)0,		/* pointer to right operand                    */
+  NULL,				/* makearg function                            */
+  NULL,				/* copyarg function                            */
+  NULL,				/* freearg function                            */
+  NULL,				/* field validation function                   */
+  NULL,				/* Character check function                    */
+  NULL,				/* enumerate next function                     */
+  NULL				/* enumerate previous function                 */
+};
+
+NCURSES_EXPORT_VAR(const FIELDTYPE *)
+_nc_Default_FieldType = &default_fieldtype;
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform
+|   Function      :  FIELDTYPE *new_fieldtype(
+|                       bool (* const field_check)(FIELD *,const void *),
+|                       bool (* const char_check) (int, const void *) )
+|
+|   Description   :  Create a new fieldtype. The application programmer must
+|                    write a field_check and a char_check function and give
+|                    them as input to this call.
+|                    If an error occurs, errno is set to
+|                       E_BAD_ARGUMENT  - invalid arguments
+|                       E_SYSTEM_ERROR  - system error (no memory)
+|
+|   Return Values :  Fieldtype pointer or NULL if error occurred
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(FIELDTYPE *)
+new_fieldtype(bool (*const field_check) (FIELD *, const void *),
+	      bool (*const char_check) (int, const void *))
+{
+  FIELDTYPE *nftyp = (FIELDTYPE *)0;
+
+  T((T_CALLED("new_fieldtype(%p,%p)"), field_check, char_check));
+  if ((field_check) || (char_check))
+    {
+      nftyp = typeMalloc(FIELDTYPE, 1);
+
+      if (nftyp)
+	{
+	  T((T_CREATE("fieldtype %p"), nftyp));
+	  *nftyp = default_fieldtype;
+	  nftyp->fcheck = field_check;
+	  nftyp->ccheck = char_check;
+	}
+      else
+	{
+	  SET_ERROR(E_SYSTEM_ERROR);
+	}
+    }
+  else
+    {
+      SET_ERROR(E_BAD_ARGUMENT);
+    }
+  returnFieldType(nftyp);
+}
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform
+|   Function      :  int free_fieldtype(FIELDTYPE *typ)
+|
+|   Description   :  Release the memory associated with this fieldtype.
+|
+|   Return Values :  E_OK            - success
+|                    E_CONNECTED     - there are fields referencing the type
+|                    E_BAD_ARGUMENT  - invalid fieldtype pointer
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(int)
+free_fieldtype(FIELDTYPE *typ)
+{
+  T((T_CALLED("free_fieldtype(%p)"), typ));
+
+  if (!typ)
+    RETURN(E_BAD_ARGUMENT);
+
+  if (typ->ref != 0)
+    RETURN(E_CONNECTED);
+
+  if (typ->status & _RESIDENT)
+    RETURN(E_CONNECTED);
+
+  if (typ->status & _LINKED_TYPE)
+    {
+      if (typ->left)
+	typ->left->ref--;
+      if (typ->right)
+	typ->right->ref--;
+    }
+  free(typ);
+  RETURN(E_OK);
+}
+
+/* fld_newftyp.c ends here */