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/*
* Calcurse - text-based organizer
*
* Copyright (c) 2004-2023 calcurse Development Team <misc@calcurse.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Send your feedback or comments to : misc@calcurse.org
* Calcurse home page : http://calcurse.org
*
*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include "calcurse.h"
#include "sha1.h"
llist_t eventlist;
/* Dummy event for the APP panel for an otherwise empty day. */
struct event dummy = { DUMMY, 0, "", NULL };
void event_free(struct event *ev)
{
mem_free(ev->mesg);
erase_note(&ev->note);
mem_free(ev);
}
struct event *event_dup(struct event *in)
{
EXIT_IF(!in, _("null pointer"));
struct event *ev = mem_malloc(sizeof(struct event));
ev->id = in->id;
ev->day = in->day;
ev->mesg = mem_strdup(in->mesg);
if (in->note)
ev->note = mem_strdup(in->note);
else
ev->note = NULL;
return ev;
}
void event_llist_init(void)
{
LLIST_INIT(&eventlist);
}
void event_llist_free(void)
{
LLIST_FREE_INNER(&eventlist, event_free);
LLIST_FREE(&eventlist);
}
static int event_cmp(struct event *a, struct event *b)
{
if (a->day < b->day)
return -1;
if (a->day > b->day)
return 1;
return strcmp(a->mesg, b->mesg);
}
/* Create a new event */
struct event *event_new(char *mesg, char *note, time_t day, int id)
{
struct event *ev;
ev = mem_malloc(sizeof(struct event));
ev->mesg = mem_strdup(mesg);
ev->day = day;
ev->id = id;
ev->note = (note != NULL) ? mem_strdup(note) : NULL;
LLIST_ADD_SORTED(&eventlist, ev, event_cmp);
return ev;
}
/* Check if the event belongs to the selected day */
unsigned event_inday(struct event *i, time_t *start)
{
return (date_cmp_day(i->day, *start) == 0);
}
char *event_tostr(struct event *o)
{
struct string s;
struct tm lt;
time_t t;
string_init(&s);
t = o->day;
localtime_r(&t, <);
string_catf(&s, "%02u/%02u/%04u [%d] ", lt.tm_mon + 1, lt.tm_mday,
1900 + lt.tm_year, o->id);
if (o->note != NULL)
string_catf(&s, ">%s ", o->note);
string_catf(&s, "%s", o->mesg);
return string_buf(&s);
}
char *event_hash(struct event *ev)
{
char *raw = event_tostr(ev);
char *sha1 = mem_malloc(SHA1_DIGESTLEN * 2 + 1);
sha1_digest(raw, sha1);
mem_free(raw);
return sha1;
}
void event_write(struct event *o, FILE * f)
{
char *str = event_tostr(o);
fprintf(f, "%s\n", str);
mem_free(str);
}
/* Load the events from file */
char *event_scan(FILE * f, struct tm start, int id, char *note,
struct item_filter *filter)
{
char buf[BUFSIZ], *nl;
time_t tstart, tend;
struct event *ev = NULL;
int cond;
if (!check_date(start.tm_year, start.tm_mon, start.tm_mday) ||
!check_time(start.tm_hour, start.tm_min))
return _("illegal date in event");
/* Read the event description */
if (!fgets(buf, sizeof buf, f))
return _("error in appointment description");
nl = strchr(buf, '\n');
if (nl) {
*nl = '\0';
}
start.tm_hour = 0;
start.tm_min = 0;
start.tm_sec = 0;
start.tm_isdst = -1;
start.tm_year -= 1900;
start.tm_mon--;
tstart = mktime(&start);
if (tstart == -1)
return _("date error in event\n");
tend = ENDOFDAY(tstart);
/* Filter item. */
if (filter) {
cond = (
!(filter->type_mask & TYPE_MASK_EVNT) ||
(filter->regex && regexec(filter->regex, buf, 0, 0, 0)) ||
(filter->start_from != -1 && tstart < filter->start_from) ||
(filter->start_to != -1 && tstart > filter->start_to) ||
(filter->end_from != -1 && tend < filter->end_from) ||
(filter->end_to != -1 && tend > filter->end_to)
);
if (filter->hash) {
ev = event_new(buf, note, tstart, id);
char *hash = event_hash(ev);
cond = cond || !hash_matches(filter->hash, hash);
mem_free(hash);
}
if ((!filter->invert && cond) || (filter->invert && !cond)) {
if (filter->hash)
event_delete(ev);
return NULL;
}
}
if (!ev)
ev = event_new(buf, note, tstart, id);
return NULL;
}
/* Delete an event from the list. */
void event_delete(struct event *ev)
{
llist_item_t *i = LLIST_FIND_FIRST(&eventlist, ev, NULL);
if (!i)
EXIT(_("no such appointment"));
LLIST_REMOVE(&eventlist, i);
}
void event_paste_item(struct event *ev, time_t date)
{
ev->day = date;
LLIST_ADD_SORTED(&eventlist, ev, event_cmp);
}
/* Return true if the day_item is the dummy event. */
int event_dummy(struct day_item *item)
{
return item->item.ev == &dummy;
}
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