1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 1998-2010,2012 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Juergen Pfeifer, 1995,1997 * 32 ****************************************************************************/ 33 34 #include "form.priv.h" 35 36 MODULE_ID("$Id: fld_ftlink.c,v 1.17 2020/05/24 01:40:20 anonymous.maarten Exp $") 37 38 /*--------------------------------------------------------------------------- 39 | Facility : libnform 40 | Function : FIELDTYPE *link_fieldtype( 41 | FIELDTYPE *type1, 42 | FIELDTYPE *type2) 43 | 44 | Description : Create a new fieldtype built from the two given types. 45 | They are connected by an logical 'OR'. 46 | If an error occurs, errno is set to 47 | E_BAD_ARGUMENT - invalid arguments 48 | E_SYSTEM_ERROR - system error (no memory) 49 | 50 | Return Values : Fieldtype pointer or NULL if error occurred. 51 +--------------------------------------------------------------------------*/ 52 FORM_EXPORT(FIELDTYPE *) 53 link_fieldtype(FIELDTYPE *type1, FIELDTYPE *type2) 54 { 55 FIELDTYPE *nftyp = (FIELDTYPE *)0; 56 57 T((T_CALLED("link_fieldtype(%p,%p)"), (void *)type1, (void *)type2)); 58 if (type1 && type2) 59 { 60 nftyp = typeMalloc(FIELDTYPE, 1); 61 62 if (nftyp) 63 { 64 T((T_CREATE("fieldtype %p"), (void *)nftyp)); 65 *nftyp = *_nc_Default_FieldType; 66 SetStatus(nftyp, _LINKED_TYPE); 67 if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS)) 68 SetStatus(nftyp, _HAS_ARGS); 69 if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE)) 70 SetStatus(nftyp, _HAS_CHOICE); 71 nftyp->left = type1; 72 nftyp->right = type2; 73 type1->ref++; 74 type2->ref++; 75 } 76 else 77 { 78 SET_ERROR(E_SYSTEM_ERROR); 79 } 80 } 81 else 82 { 83 SET_ERROR(E_BAD_ARGUMENT); 84 } 85 returnFieldType(nftyp); 86 } 87 88 /* fld_ftlink.c ends here */ 89