Merge of ncurses-4.1-971129

1 files changed, 117 insertions, 0 deletions

diff --git a/lib/libform/fld_newftyp.c b/lib/libform/fld_newftyp.c
new file mode 100644
index 00000000000..1dbc3541d21
--- /dev/null
+++ b/lib/libform/fld_newftyp.c
@@ -0,0 +1,117 @@
+/*	$OpenBSD: fld_newftyp.c,v 1.1 1997/12/03 05:39:56 millert Exp $	*/
+
+/*-----------------------------------------------------------------------------+
+|           The ncurses form library is  Copyright (C) 1995-1997               |
+|             by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de>                 |
+|                          All Rights Reserved.                                |
+|                                                                              |
+| Permission to use, copy, modify, and distribute this software and its        |
+| documentation for any purpose and without fee is hereby granted, provided    |
+| that the above copyright notice appear in all copies and that both that      |
+| copyright notice and this permission notice appear in supporting             |
+| documentation, and that the name of the above listed copyright holder(s) not |
+| be used in advertising or publicity pertaining to distribution of the        |
+| software without specific, written prior permission.                         | 
+|                                                                              |
+| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO  |
+| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-  |
+| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR   |
+| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- |
+| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
+| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH    |
+| THE USE OR PERFORMANCE OF THIS SOFTWARE.                                     |
++-----------------------------------------------------------------------------*/
+
+#include "form.priv.h"
+
+MODULE_ID("Id: fld_newftyp.c,v 1.1 1997/10/21 13:24:19 juergen 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                 */
+};
+
+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 occured
++--------------------------------------------------------------------------*/
+FIELDTYPE *new_fieldtype(
+ bool (* const field_check)(FIELD *,const void *),
+ bool (* const char_check) (int,const void *) )
+{
+  FIELDTYPE *nftyp = (FIELDTYPE *)0;
+  
+  if ( (field_check) && (char_check) )
+    {
+      nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE));
+      if (nftyp)
+	{
+	  *nftyp = default_fieldtype;
+	  nftyp->fcheck = field_check;
+	  nftyp->ccheck = char_check;
+	}
+      else
+	{
+	  SET_ERROR( E_SYSTEM_ERROR );
+	}
+    }
+  else
+    {
+      SET_ERROR( E_BAD_ARGUMENT );
+    }
+  return 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
++--------------------------------------------------------------------------*/
+int free_fieldtype(FIELDTYPE *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 */