1 /* Date manipulation routines.
2 Copyright (C) 2001 The Genes Development Team
3 This file is part of the Gedcom parser library.
4 Contributed by Peter Verthez <Peter.Verthez@advalvas.be>, 2001.
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.
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.
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
25 #include "gedcom_internal.h"
29 struct date_value dv_s;
32 struct date_value def_date_val;
35 char* curr_line_value;
37 int max_month[] = { 12, /* CAL_GREGORIAN */
40 13, /* CAL_FRENCH_REV */
44 typedef long int (*cal_func_type) (int, int, int);
46 cal_func_type cal_func[] = { &GregorianToSdn, /* CAL_GREGORIAN */
47 &JulianToSdn, /* CAL_JULIAN */
48 &JewishToSdn, /* CAL_JEWISH */
49 &FrenchToSdn /* CAL_FRENCH_REV */
52 void copy_date(struct date *to, struct date from)
54 memcpy(to, &from, sizeof(struct date));
57 void init_date(struct date *d)
61 d->month_str[0] = '\0';
62 d->year_str[0] = '\0';
66 d->year_type = YEAR_SINGLE;
67 d->type = DATE_UNRECOGNIZED;
72 struct date_value make_date_value(Date_value_type t, struct date d1,
73 struct date d2, char* p)
76 copy_date(&dv_s.date1, d1);
77 copy_date(&dv_s.date2, d2);
78 strncpy(dv_s.phrase, p, MAX_PHRASE_LEN + 1);
82 void make_date_complete(struct date *d)
84 if (d->cal == CAL_UNKNOWN)
85 d->type = DATE_UNRECOGNIZED;
89 if (d->day == -1 || d->month == -1 || d->year == -1) {
90 d->type = DATE_BOUNDED;
91 copy_date(&end_date, *d);
93 d->month = 1; end_date.month = 1;
94 d->day = 1; end_date.day = 1;
97 else if (d->day == -1) {
98 d->day = 1; end_date.day = 1;
100 if (end_date.month > max_month[d->cal]) {
101 end_date.month -= max_month[d->cal];
107 d->type = DATE_EXACT;
110 to_sdn = cal_func[d->cal];
111 d->sdn1 = (*to_sdn)(d->year, d->month, d->day);
112 if (d->type == DATE_BOUNDED) {
113 d->sdn2 = (*to_sdn)(end_date.year, end_date.month, end_date.day);
119 struct date_value gedcom_parse_date(char* line_value)
122 init_date(&def_date);
123 curr_line_value = line_value;
124 init_gedcom_date_lex(line_value);
126 close_gedcom_date_lex();
127 make_date_complete(&dv_s.date1);
128 make_date_complete(&dv_s.date2);