Added functions to add, remove and move substructs.
[gedcom-parse.git] / gom / source_description.c
1 /* Source description sub-structure in the gedcom object model.
2    Copyright (C) 2002 The Genes Development Team
3    This file is part of the Gedcom parser library.
4    Contributed by Peter Verthez <Peter.Verthez@advalvas.be>, 2002.
5
6    The Gedcom parser library is free software; you can redistribute it
7    and/or modify it under the terms of the GNU Lesser General Public
8    License as published by the Free Software Foundation; either
9    version 2.1 of the License, or (at your option) any later version.
10
11    The Gedcom parser library is distributed in the hope that it will be
12    useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14    Lesser General Public License for more details.
15
16    You should have received a copy of the GNU Lesser General Public
17    License along with the Gedcom parser library; if not, write to the
18    Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19    02111-1307 USA.  */
20
21 /* $Id$ */
22 /* $Name$ */
23
24 #include <stdlib.h>
25 #include <string.h>
26 #include "source_description.h"
27 #include "source.h"
28 #include "user_rec.h"
29 #include "gom.h"
30 #include "gedcom.h"
31 #include "gom_internal.h"
32
33 Gedcom_ctxt sub_sour_caln_start(_ELT_PARAMS_)
34 {
35   Gom_ctxt ctxt = (Gom_ctxt)parent;
36   Gom_ctxt result = NULL;
37
38   if (! ctxt)
39     NO_CONTEXT;
40   else {
41     struct source_description *desc = SUB_MAKEFUNC(source_description)();
42     if (desc) {
43       desc->call_number = strdup(GEDCOM_STRING(parsed_value));
44
45       if (! desc->call_number) {
46         MEMORY_ERROR;
47         free(desc);
48       }
49       else {
50         switch (ctxt->ctxt_type) {
51           case ELT_SUB_REPO:
52             ADDFUNC2(source,source_description)(ctxt, desc); break;
53           default:
54             UNEXPECTED_CONTEXT(ctxt->ctxt_type);
55         }
56         result = MAKE_GOM_CTXT(elt, source_description, desc);
57       }
58     }
59   }
60
61   return (Gedcom_ctxt)result;
62 }
63
64 DEFINE_SUB_MAKEFUNC(source_description)
65 DEFINE_SUB_ADDFUNC(source_description)
66 DEFINE_SUB_FINDFUNC(source_description)
67 DEFINE_SUB_REMOVEFUNC(source_description)
68 DEFINE_SUB_MOVEFUNC(source_description)
69      
70 DEFINE_STRING_CB(source_description, sub_sour_caln_medi_start, media)
71
72 DEFINE_ADDFUNC2(source_description, user_data, extra)
73      
74 void source_description_subscribe()
75 {
76   gedcom_subscribe_to_element(ELT_SUB_REPO_CALN, sub_sour_caln_start,
77                               def_elt_end);
78   gedcom_subscribe_to_element(ELT_SUB_REPO_CALN_MEDI,
79                               sub_sour_caln_medi_start, def_elt_end);
80 }
81
82 void UNREFALLFUNC(source_description)(struct source_description* obj)
83 {
84   if (obj) {
85     struct source_description* runner;
86     for (runner = obj; runner; runner = runner->next) {
87       UNREFALLFUNC(user_data)(runner->extra);
88     }
89   }
90 }
91
92 void CLEANFUNC(source_description)(struct source_description* desc)
93 {
94   if (desc) {
95     SAFE_FREE(desc->call_number);
96     SAFE_FREE(desc->media);
97     DESTROY_CHAIN_ELTS(user_data, desc->extra);
98   }
99 }
100
101 int write_source_descriptions(Gedcom_write_hndl hndl, int parent,
102                               struct source_description *desc)
103 {
104   int result = 0;
105   struct source_description* obj;
106
107   if (!desc) return 1;
108
109   for (obj = desc; obj; obj = obj->next) {
110     result |= gedcom_write_element_str(hndl, ELT_SUB_REPO_CALN, 0,
111                                        parent, obj->call_number);
112     if (obj->media)
113       result |= gedcom_write_element_str(hndl, ELT_SUB_REPO_CALN_MEDI, 0,
114                                          ELT_SUB_REPO_CALN, obj->media);
115     if (obj->extra)
116       result |= write_user_data(hndl, obj->extra);    
117   }
118
119   return result;
120 }