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|
/*
* Calcurse - text-based organizer
*
* Copyright (c) 2004-2016 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 <time.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
#include <ctype.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <termios.h>
#include "calcurse.h"
#include "sha1.h"
#define ISLEAP(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
#define FS_EXT_MAXLEN 64
enum format_specifier {
FS_STARTDATE,
FS_DURATION,
FS_ENDDATE,
FS_REMAINING,
FS_MESSAGE,
FS_NOTE,
FS_NOTEFILE,
FS_PRIORITY,
FS_RAW,
FS_HASH,
FS_PSIGN,
FS_EOF,
FS_UNKNOWN
};
/* General routine to exit calcurse properly. */
void exit_calcurse(int status)
{
int was_interactive;
ui_calendar_stop_date_thread();
io_stop_psave_thread();
if (ui_mode == UI_CURSES) {
notify_stop_main_thread();
clear();
wins_refresh();
endwin();
ui_mode = UI_CMDLINE;
was_interactive = 1;
} else {
was_interactive = 0;
}
free_user_data();
keys_free();
mem_stats();
if (was_interactive) {
if (unlink(path_cpid) != 0)
EXIT(_("Could not remove calcurse lock file: %s\n"),
strerror(errno));
if (dmon.enable)
dmon_start(status);
}
exit(status);
}
void free_user_data(void)
{
unsigned i;
day_free_vector();
event_llist_free();
apoint_llist_free();
recur_apoint_llist_free();
recur_event_llist_free();
for (i = 0; i <= 37; i++)
ui_day_item_cut_free(i);
todo_free_list();
notify_free_app();
}
/* Function to exit on internal error. */
void fatalbox(const char *errmsg)
{
WINDOW *errwin;
const char *label = _("/!\\ INTERNAL ERROR /!\\");
const char *reportmsg = _("Please report the following bug:");
const int WINROW = 10;
const int WINCOL = col - 2;
const int MSGLEN = WINCOL - 2;
char msg[MSGLEN];
if (errmsg == NULL)
return;
strncpy(msg, errmsg, MSGLEN);
errwin =
newwin(WINROW, WINCOL, (row - WINROW) / 2, (col - WINCOL) / 2);
custom_apply_attr(errwin, ATTR_HIGHEST);
box(errwin, 0, 0);
wins_show(errwin, label);
mvwaddstr(errwin, 3, 1, reportmsg);
mvwaddstr(errwin, 5, (WINCOL - strlen(msg)) / 2, msg);
custom_remove_attr(errwin, ATTR_HIGHEST);
wins_wrefresh(errwin);
wgetch(errwin);
delwin(errwin);
wins_doupdate();
}
void warnbox(const char *msg)
{
WINDOW *warnwin;
const char *label = "/!\\";
const int WINROW = 10;
const int WINCOL = col - 2;
const int MSGLEN = WINCOL - 2;
char displmsg[MSGLEN];
if (msg == NULL)
return;
strncpy(displmsg, msg, MSGLEN);
warnwin =
newwin(WINROW, WINCOL, (row - WINROW) / 2, (col - WINCOL) / 2);
custom_apply_attr(warnwin, ATTR_HIGHEST);
box(warnwin, 0, 0);
wins_show(warnwin, label);
mvwaddstr(warnwin, 5, (WINCOL - strlen(displmsg)) / 2, displmsg);
custom_remove_attr(warnwin, ATTR_HIGHEST);
wins_wrefresh(warnwin);
wgetch(warnwin);
delwin(warnwin);
wins_doupdate();
}
/*
* Print a message in the status bar.
* Message texts for first line and second line are to be provided.
*/
void status_mesg(const char *msg1, const char *msg2)
{
wins_erase_status_bar();
custom_apply_attr(win[STA].p, ATTR_HIGHEST);
mvwaddstr(win[STA].p, 0, 0, msg1);
mvwaddstr(win[STA].p, 1, 0, msg2);
custom_remove_attr(win[STA].p, ATTR_HIGHEST);
wins_wrefresh(win[STA].p);
}
/*
* Prompts the user to make a choice between named alternatives.
*
* The available choices are described by a string of the form
* "[ynp]". The first and last char are ignored (they are only here to
* make the translators' life easier), and every other char indicates
* a key the user is allowed to press.
*
* Returns the index of the key pressed by the user (starting from 1),
* or -1 if the user doesn't want to answer (e.g. by escaping).
*/
int status_ask_choice(const char *message, const char choice[],
int nb_choice)
{
/* "[4/2/f/t/w/.../Z] " */
char avail_choice[2 * nb_choice + 3];
int i, ch;
avail_choice[0] = '[';
for (i = 1; i <= nb_choice; i++) {
avail_choice[i * 2 - 1] = choice[i];
avail_choice[i * 2] = '/';
}
avail_choice[nb_choice * 2] = ']';
avail_choice[nb_choice * 2 + 1] = '\0';
status_mesg(message, avail_choice);
for (;;) {
ch = wgetch(win[KEY].p);
for (i = 1; i <= nb_choice; i++)
if (ch == choice[i])
return i;
if (ch == ESCAPE)
return (-1);
if (resize) {
resize = 0;
wins_reset();
status_mesg(message, avail_choice);
}
}
}
/*
* Prompts the user with a boolean question.
*
* Returns 1 if yes, 2 if no, and -1 otherwise
*/
int status_ask_bool(const char *msg)
{
return (status_ask_choice(msg, _("[yn]"), 2));
}
/*
* Prompts the user to make a choice between a number of alternatives.
*
* Returns the option chosen by the user (starting from 1), or -1 if
* the user doesn't want to answer.
*/
int
status_ask_simplechoice(const char *prefix, const char *choice[],
int nb_choice)
{
int i;
char *tmp;
/* "(1) Choice1, (2) Choice2, (3) Choice3?" */
char choicestr[BUFSIZ];
/* Holds the characters to choose from ('1', '2', etc) */
char char_choice[nb_choice + 2];
/* No need to initialize first and last char. */
for (i = 1; i <= nb_choice; i++)
char_choice[i] = '0' + i;
strcpy(choicestr, prefix);
for (i = 0; i < nb_choice; i++) {
asprintf(&tmp,
((i + 1) == nb_choice) ? "(%d) %s?" : "(%d) %s, ",
(i + 1), choice[i]);
strcat(choicestr, tmp);
mem_free(tmp);
}
return (status_ask_choice(choicestr, char_choice, nb_choice));
}
/* Erase part of a window. */
void
erase_window_part(WINDOW * win, int first_col, int first_row, int last_col,
int last_row)
{
int c, r;
for (r = first_row; r <= last_row; r++) {
for (c = first_col; c <= last_col; c++)
mvwaddstr(win, r, c, " ");
}
}
/* draws a popup window */
WINDOW *popup(int pop_row, int pop_col, int pop_y, int pop_x,
const char *title, const char *msg, int hint)
{
const char *any_key = _("Press any key to continue...");
WINDOW *popup_win;
const int MSGXPOS = 5;
popup_win = newwin(pop_row, pop_col, pop_y, pop_x);
keypad(popup_win, TRUE);
if (msg)
mvwaddstr(popup_win, MSGXPOS, (pop_col - strlen(msg)) / 2,
msg);
custom_apply_attr(popup_win, ATTR_HIGHEST);
box(popup_win, 0, 0);
wins_show(popup_win, title);
if (hint)
mvwaddstr(popup_win, pop_row - 2,
pop_col - (strlen(any_key) + 1), any_key);
custom_remove_attr(popup_win, ATTR_HIGHEST);
wins_wrefresh(popup_win);
return popup_win;
}
/* prints in middle of a panel */
void
print_in_middle(WINDOW * win, int starty, int startx, int width,
const char *string)
{
int len = strlen(string);
int x, y;
win = win ? win : stdscr;
getyx(win, y, x);
x = startx ? startx : x;
y = starty ? starty : y;
width = width ? width : 80;
x += (width - len) / 2;
custom_apply_attr(win, ATTR_HIGHEST);
mvwaddstr(win, y, x, string);
custom_remove_attr(win, ATTR_HIGHEST);
}
/* checks if a string is only made of digits */
int is_all_digit(const char *string)
{
for (; *string; string++) {
if (!isdigit((int)*string))
return 0;
}
return 1;
}
/* Given an item date expressed in seconds, return its start time in seconds. */
long get_item_time(long date)
{
return (long)(get_item_hour(date) * HOURINSEC +
get_item_min(date) * MININSEC);
}
int get_item_hour(long date)
{
struct tm lt;
localtime_r((time_t *) & date, <);
return lt.tm_hour;
}
int get_item_min(long date)
{
struct tm lt;
localtime_r((time_t *) & date, <);
return lt.tm_min;
}
struct tm date2tm(struct date day, unsigned hour, unsigned min)
{
time_t t = now();
struct tm start;
localtime_r(&t, &start);
start.tm_mon = day.mm - 1;
start.tm_mday = day.dd;
start.tm_year = day.yyyy - 1900;
start.tm_hour = hour;
start.tm_min = min;
start.tm_sec = 0;
start.tm_isdst = -1;
return start;
}
time_t date2sec(struct date day, unsigned hour, unsigned min)
{
struct tm start = date2tm(day, hour, min);
time_t t = mktime(&start);
EXIT_IF(t == -1, _("failure in mktime"));
return t;
}
time_t utcdate2sec(struct date day, unsigned hour, unsigned min)
{
char *tz;
time_t t;
tz = getenv("TZ");
if (tz)
tz = mem_strdup(tz);
setenv("TZ", "", 1);
tzset();
t = date2sec(day, hour, min);
if (tz) {
setenv("TZ", tz, 1);
mem_free(tz);
} else {
unsetenv("TZ");
}
tzset();
return t;
}
/* Compare two dates (without comparing times). */
int date_cmp_day(time_t d1, time_t d2)
{
struct tm lt1, lt2;
localtime_r((time_t *)&d1, <1);
localtime_r((time_t *)&d2, <2);
if (lt1.tm_year < lt2.tm_year)
return -1;
if (lt1.tm_year > lt2.tm_year)
return 1;
if (lt1.tm_mon < lt2.tm_mon)
return -1;
if (lt1.tm_mon > lt2.tm_mon)
return 1;
if (lt1.tm_mday < lt2.tm_mday)
return -1;
if (lt1.tm_mday > lt2.tm_mday)
return 1;
return 0;
}
/* Return a string containing the date, given a date in seconds. */
char *date_sec2date_str(long sec, const char *datefmt)
{
struct tm lt;
char *datestr = (char *)mem_calloc(BUFSIZ, sizeof(char));
if (sec == 0) {
strncpy(datestr, "0", BUFSIZ);
} else {
localtime_r((time_t *) & sec, <);
strftime(datestr, BUFSIZ, datefmt, <);
}
return datestr;
}
/* Generic function to format date. */
void date_sec2date_fmt(long sec, const char *fmt, char *datef)
{
#if ENABLE_NLS
/* TODO: Find a better way to deal with localization and strftime(). */
char *locale_old = mem_strdup(setlocale(LC_ALL, NULL));
setlocale(LC_ALL, "C");
#endif
struct tm lt;
localtime_r((time_t *) & sec, <);
strftime(datef, BUFSIZ, fmt, <);
#if ENABLE_NLS
setlocale(LC_ALL, locale_old);
mem_free(locale_old);
#endif
}
/*
* Used to change date by adding a certain amount of days or weeks.
* Returns 0 on success, 1 otherwise.
*/
int date_change(struct tm *date, int delta_month, int delta_day)
{
struct tm t;
t = *date;
t.tm_mon += delta_month;
t.tm_mday += delta_day;
if (mktime(&t) == -1) {
return 1;
} else {
*date = t;
return 0;
}
}
/*
* Used to change date by adding a certain amount of days or weeks.
*/
long date_sec_change(long date, int delta_month, int delta_day)
{
struct tm lt;
time_t t;
t = date;
localtime_r(&t, <);
lt.tm_mon += delta_month;
lt.tm_mday += delta_day;
lt.tm_isdst = -1;
t = mktime(<);
EXIT_IF(t == -1, _("failure in mktime"));
return t;
}
/*
* Return a long containing the date which is updated taking into account
* the new time and date entered by the user.
*/
long update_time_in_date(long date, unsigned hr, unsigned mn)
{
struct tm lt;
time_t t, new_date;
t = date;
localtime_r(&t, <);
lt.tm_hour = hr;
lt.tm_min = mn;
lt.tm_sec = 0;
new_date = mktime(<);
EXIT_IF(new_date == -1, _("error in mktime"));
return new_date;
}
/*
* Returns the date in seconds from year 1900.
* If no date is entered, current date is chosen.
*/
time_t get_sec_date(struct date date)
{
struct tm ptrtime;
time_t timer;
char current_day[] = "dd ";
char current_month[] = "mm ";
char current_year[] = "yyyy ";
if (date.yyyy == 0 && date.mm == 0 && date.dd == 0) {
timer = time(NULL);
localtime_r(&timer, &ptrtime);
strftime(current_day, strlen(current_day), "%d", &ptrtime);
strftime(current_month, strlen(current_month), "%m", &ptrtime);
strftime(current_year, strlen(current_year), "%Y", &ptrtime);
date.mm = atoi(current_month);
date.dd = atoi(current_day);
date.yyyy = atoi(current_year);
}
return date2sec(date, 0, 0);
}
long min2sec(unsigned minutes)
{
return minutes * MININSEC;
}
/*
* Display a scroll bar when there are so many items that they
* can not be displayed inside the corresponding panel.
*/
void
draw_scrollbar(WINDOW * win, int y, int x, int length,
int bar_top, int bar_bottom, unsigned hilt)
{
mvwvline(win, bar_top, x, ACS_VLINE, bar_bottom - bar_top + 1);
if (hilt)
custom_apply_attr(win, ATTR_HIGHEST);
wattron(win, A_REVERSE);
mvwvline(win, y, x, ' ', length);
wattroff(win, A_REVERSE);
if (hilt)
custom_remove_attr(win, ATTR_HIGHEST);
}
/*
* Print an item (either an appointment, event, or todo) in a
* popup window. This is useful if an item description is too
* long to fit in its corresponding panel window.
*/
void
item_in_popup(const char *a_start, const char *a_end, const char *msg,
const char *pop_title)
{
WINDOW *popup_win, *pad;
const int margin_left = 4, margin_top = 4;
const int winl = row - 5, winw = col - margin_left;
const int padl = winl - 2, padw = winw - margin_left;
pad = newpad(padl, padw);
popup_win = popup(winl, winw, 1, 2, pop_title, NULL, 1);
if (a_start && a_end) {
mvwprintw(popup_win, margin_top, margin_left, "- %s -> %s",
a_start, a_end);
}
mvwaddstr(pad, 0, margin_left, msg);
wmove(win[STA].p, 0, 0);
pnoutrefresh(pad, 0, 0, margin_top + 2, margin_left, padl, winw);
wins_doupdate();
wgetch(popup_win);
delwin(pad);
delwin(popup_win);
}
/* Returns the beginning of current day in seconds from 1900. */
time_t get_today(void)
{
struct tm lt;
time_t current_time;
struct date day;
current_time = time(NULL);
localtime_r(¤t_time, <);
day.mm = lt.tm_mon + 1;
day.dd = lt.tm_mday;
day.yyyy = lt.tm_year + 1900;
return date2sec(day, 0, 0);
}
/* Returns the current time in seconds. */
long now(void)
{
return (long)time(NULL);
}
char *nowstr(void)
{
struct tm lt;
static char buf[BUFSIZ];
time_t t = now();
localtime_r(&t, <);
strftime(buf, sizeof buf, "%a %b %d %T %Y", <);
return buf;
}
/* Print the given option value with appropriate color. */
void
print_bool_option_incolor(WINDOW * win, unsigned option, int pos_y,
int pos_x)
{
int color = 0;
const char *option_value;
if (option == 1) {
color = ATTR_TRUE;
option_value = _("yes");
} else if (option == 0) {
color = ATTR_FALSE;
option_value = _("no");
} else {
EXIT(_("option not defined"));
}
custom_apply_attr(win, color);
mvwaddstr(win, pos_y, pos_x, option_value);
custom_remove_attr(win, color);
wnoutrefresh(win);
wins_doupdate();
}
/*
* Get the name of the default directory for temporary files.
*/
const char *get_tempdir(void)
{
if (getenv("TMPDIR"))
return getenv("TMPDIR");
#ifdef P_tmpdir
else if (P_tmpdir)
return P_tmpdir;
#endif
else
return "/tmp";
}
/*
* Create a new unique file, and return a newly allocated string which contains
* the random part of the file name.
*/
char *new_tempfile(const char *prefix)
{
char *fullname;
int fd;
FILE *file;
if (prefix == NULL)
return NULL;
asprintf(&fullname, "%s.XXXXXX", prefix);
if ((fd = mkstemp(fullname)) == -1
|| (file = fdopen(fd, "w+")) == NULL) {
if (fd != -1) {
unlink(fullname);
close(fd);
}
ERROR_MSG(_("temporary file \"%s\" could not be created"),
fullname);
mem_free(fullname);
return NULL;
}
fclose(file);
return fullname;
}
static void get_ymd(int *year, int *month, int *day, time_t t)
{
struct tm tm;
localtime_r(&t, &tm);
*day = tm.tm_mday;
*month = tm.tm_mon + 1;
*year = tm.tm_year + 1900;
}
static void get_weekday_ymd(int *year, int *month, int *day, int weekday)
{
time_t t = get_today();
struct tm tm;
int delta;
localtime_r(&t, &tm);
delta = weekday - tm.tm_wday;
t = date_sec_change(t, 0, delta > 0 ? delta : 7);
localtime_r(&t, &tm);
*day = tm.tm_mday;
*month = tm.tm_mon + 1;
*year = tm.tm_year + 1900;
}
/*
* Check if a date is valid.
*/
int check_date(unsigned year, unsigned month, unsigned day)
{
return (year >= 1902 && month >= 1 && month <= 12 && day >= 1 &&
day <= days[month - 1] + (month == 2 && ISLEAP(year)) ? 1 : 0);
}
/*
* Convert a string containing a date into three integers containing the year,
* month and day.
*
* If a pointer to a date structure containing the current date is passed as
* last parameter ("slctd_date"), the function will accept several short forms,
* e.g. "26" for the 26th of the current month/year or "3/1" for Mar 01 (or Jan
* 03, depending on the date format) of the current year. If a null pointer is
* passed, short forms won't be accepted at all.
*
* Returns 1 if sucessfully converted or 0 if the string is an invalid date.
*/
int
parse_date(const char *date_string, enum datefmt datefmt, int *year,
int *month, int *day, struct date *slctd_date)
{
const char sep = (datefmt == DATEFMT_ISO) ? '-' : '/';
const char *p;
int in[3] = { 0, 0, 0 }, n = 0;
int d, m, y;
if (!date_string)
return 0;
if (!strcasecmp(date_string, "today")) {
get_ymd(year, month, day, get_today());
return 1;
} else if (!strcasecmp(date_string, "yesterday")) {
get_ymd(year, month, day, date_sec_change(get_today(), 0, -1));
return 1;
} else if (!strcasecmp(date_string, "tomorrow")) {
get_ymd(year, month, day, date_sec_change(get_today(), 0, 1));
return 1;
} else if (!strcasecmp(date_string, "now")) {
get_ymd(year, month, day, now());
return 1;
} else if (!strcasecmp(date_string, "sunday") ||
!strcasecmp(date_string, "sun")) {
get_weekday_ymd(year, month, day, 0);
return 1;
} else if (!strcasecmp(date_string, "monday") ||
!strcasecmp(date_string, "mon")) {
get_weekday_ymd(year, month, day, 1);
return 1;
} else if (!strcasecmp(date_string, "tuesday") ||
!strcasecmp(date_string, "tue")) {
get_weekday_ymd(year, month, day, 2);
return 1;
} else if (!strcasecmp(date_string, "wednesday") ||
!strcasecmp(date_string, "wed")) {
get_weekday_ymd(year, month, day, 3);
return 1;
} else if (!strcasecmp(date_string, "thursday") ||
!strcasecmp(date_string, "thu")) {
get_weekday_ymd(year, month, day, 4);
return 1;
} else if (!strcasecmp(date_string, "friday") ||
!strcasecmp(date_string, "fri")) {
get_weekday_ymd(year, month, day, 5);
return 1;
} else if (!strcasecmp(date_string, "saturday") ||
!strcasecmp(date_string, "sat")) {
get_weekday_ymd(year, month, day, 6);
return 1;
}
/* parse string into in[], read up to three integers */
for (p = date_string; *p; p++) {
if (*p == sep) {
if ((++n) > 2)
return 0;
} else if ((*p >= '0') && (*p <= '9')) {
in[n] = in[n] * 10 + (int)(*p - '0');
} else {
return 0;
}
}
if ((!slctd_date && n < 2) || in[n] == 0)
return 0;
/* convert into day, month and year, depending on the date format */
switch (datefmt) {
case DATEFMT_MMDDYYYY:
m = (n >= 1) ? in[0] : 0;
d = (n >= 1) ? in[1] : in[0];
y = in[2];
break;
case DATEFMT_DDMMYYYY:
d = in[0];
m = in[1];
y = in[2];
break;
case DATEFMT_YYYYMMDD:
case DATEFMT_ISO:
y = (n >= 2) ? in[n - 2] : 0;
m = (n >= 1) ? in[n - 1] : 0;
d = in[n];
break;
default:
return 0;
}
if (slctd_date) {
if (y > 0 && y < 100) {
/* convert "YY" format into "YYYY" */
y += slctd_date->yyyy - slctd_date->yyyy % 100;
} else if (n < 2) {
/* set year and, optionally, month if short from is used */
y = slctd_date->yyyy;
if (n < 1)
m = slctd_date->mm;
}
}
/* check if date is valid, take leap years into account */
if (!check_date(y, m, d))
return 0;
if (year)
*year = y;
if (month)
*month = m;
if (day)
*day = d;
return 1;
}
/*
* Convert a date duration string into a number of days.
*
* Returns 1 on success and 0 on failure.
*/
int parse_date_duration(const char *string, unsigned *days)
{
enum {
STATE_INITIAL,
STATE_WWDD_DD,
STATE_DONE
} state = STATE_INITIAL;
const char *p;
unsigned in = 0, frac = 0, denom = 1;
unsigned dur = 0;
if (!string || *string == '\0')
return 0;
/* parse string using a simple state machine */
for (p = string; *p; p++) {
if (state == STATE_DONE) {
return 0;
} else if ((*p >= '0') && (*p <= '9')) {
in = in * 10 + (int)(*p - '0');
if (frac)
denom *= 10;
} else if (*p == '.') {
if (frac)
return 0;
frac++;
} else {
switch (state) {
case STATE_INITIAL:
if (*p == 'w') {
dur += in * WEEKINDAYS / denom;
state = STATE_WWDD_DD;
} else if (*p == 'd') {
dur += in / denom;
state = STATE_DONE;
} else {
return 0;
}
break;
case STATE_WWDD_DD:
if (*p == 'd') {
dur += in / denom;
state = STATE_DONE;
} else {
return 0;
}
break;
default:
break;
}
in = frac = 0;
denom = 1;
}
}
if (state == STATE_DONE && in > 0)
return 0;
dur += in;
*days = dur;
return 1;
}
/*
* Check if time is valid.
*/
int check_time(unsigned hours, unsigned minutes)
{
return (hours < DAYINHOURS && minutes < HOURINMIN);
}
/*
* Converts a time string into hours and minutes. Short forms like "23:"
* (23:00) or ":45" (0:45) are allowed.
*
* Returns 1 on success and 0 on failure.
*/
int parse_time(const char *string, unsigned *hour, unsigned *minute)
{
const char *p;
unsigned in[2] = { 0, 0 }, n = 0;
if (!string)
return 0;
/* parse string into in[], read up to two integers */
for (p = string; *p; p++) {
if (*p == ':') {
if ((++n) > 1)
return 0;
} else if ((*p >= '0') && (*p <= '9')) {
if ((n == 0) && (p == (string + 2)) && *(p + 1))
n++;
in[n] = in[n] * 10 + (int)(*p - '0');
} else {
return 0;
}
}
if (n != 1 || !check_time(in[0], in[1]))
return 0;
*hour = in[0];
*minute = in[1];
return 1;
}
/*
* Converts a duration string into minutes.
*
* Allowed formats (noted as regular expressions):
*
* - \d*:\d*
* - (\d*m|\d*h(|\d*m)|\d*d(|\d*m|\d*h(|\d*m)))
* - \d+
*
* "\d" is used as a placeholder for "(0|1|2|3|4|5|6|7|8|9)".
*
* Returns 1 on success and 0 on failure.
*/
int parse_duration(const char *string, unsigned *duration)
{
enum {
STATE_INITIAL,
STATE_HHMM_MM,
STATE_DDHHMM_HH,
STATE_DDHHMM_MM,
STATE_DONE
} state = STATE_INITIAL;
const char *p;
unsigned in = 0, frac = 0, denom = 1;
unsigned dur = 0;
if (!string || *string == '\0')
return 0;
/* parse string using a simple state machine */
for (p = string; *p; p++) {
if (state == STATE_DONE) {
return 0;
} else if ((*p >= '0') && (*p <= '9')) {
in = in * 10 + (int)(*p - '0');
if (frac)
denom *= 10;
} else if (*p == '.') {
if (frac)
return 0;
frac++;
} else {
switch (state) {
case STATE_INITIAL:
if (*p == ':') {
dur += in * HOURINMIN / denom;
state = STATE_HHMM_MM;
} else if (*p == 'd') {
dur += in * DAYINMIN / denom;
state = STATE_DDHHMM_HH;
} else if (*p == 'h') {
dur += in * HOURINMIN / denom;
state = STATE_DDHHMM_MM;
} else if (*p == 'm') {
dur += in / denom;
state = STATE_DONE;
} else {
return 0;
}
break;
case STATE_DDHHMM_HH:
if (*p == 'h') {
dur += in * HOURINMIN / denom;
state = STATE_DDHHMM_MM;
} else if (*p == 'm') {
dur += in / denom;
state = STATE_DONE;
} else {
return 0;
}
break;
case STATE_DDHHMM_MM:
if (*p == 'm') {
dur += in / denom;
state = STATE_DONE;
} else {
return 0;
}
break;
case STATE_HHMM_MM:
return 0;
break;
default:
break;
}
in = frac = 0;
denom = 1;
}
}
if ((state == STATE_HHMM_MM && in >= HOURINMIN) ||
((state == STATE_DDHHMM_HH || state == STATE_DDHHMM_MM)
&& in > 0))
return 0;
dur += in;
*duration = dur;
return 1;
}
/*
* Converts a string containing a date or a time into a time stamp.
*
* Takes a date/time string and a time stamp. If the string only contains a
* date, the date of the time stamp is updated while the time remains
* untouched. If the string only contains a time, the time of the time stamp is
* updated and the date remains the same. If the string contains both a date
* and a time, the time stamp is updated to match the given string.
*
* Returns a positive value on success and 0 on failure. The least-significant
* bit is set if the date was updated. Bit 1 is set if the time was updated.
*/
int parse_datetime(const char *string, long *ts)
{
char *t = mem_strdup(string);
char *p = strtok(t, " ");
unsigned int hour, minute;
int year, month, day;
struct date new_date;
int ret = 0;
while (p) {
if (parse_date(p, conf.input_datefmt, &year, &month, &day,
ui_calendar_get_slctd_day())) {
new_date.dd = day;
new_date.mm = month;
new_date.yyyy = year;
*ts = date2sec(new_date, 0, 0) + get_item_time(*ts);
ret |= PARSE_DATETIME_HAS_DATE;
} else if (parse_time(p, &hour, &minute) == 1) {
*ts = update_time_in_date(*ts, hour, minute);
ret |= PARSE_DATETIME_HAS_TIME;
} else {
return 0;
}
p = strtok(NULL, " ");
}
mem_free(t);
return ret;
}
void file_close(FILE * f, const char *pos)
{
EXIT_IF((fclose(f)) != 0, _("Error when closing file at %s"), pos);
}
/*
* Sleep the given number of seconds, but make it more 'precise' than sleep(3)
* (hence the 'p') in a way that even if a signal is caught during the sleep
* process, this function will return to sleep afterwards.
*/
void psleep(unsigned secs)
{
unsigned unslept;
for (unslept = sleep(secs); unslept; unslept = sleep(unslept)) ;
}
/*
* Fork and execute an external process.
*
* If pfdin and/or pfdout point to a valid address, a pipe is created and the
* appropriate file descriptors are written to pfdin/pfdout.
*/
int fork_exec(int *pfdin, int *pfdout, const char *path,
const char *const *arg)
{
int pin[2], pout[2];
int pid;
if (pfdin && (pipe(pin) == -1))
return 0;
if (pfdout && (pipe(pout) == -1))
return 0;
if ((pid = fork()) == 0) {
if (pfdout) {
if (dup2(pout[0], STDIN_FILENO) < 0)
_exit(127);
close(pout[0]);
close(pout[1]);
}
if (pfdin) {
if (dup2(pin[1], STDOUT_FILENO) < 0)
_exit(127);
close(pin[0]);
close(pin[1]);
}
execvp(path, (char *const *)arg);
_exit(127);
} else {
if (pfdin)
close(pin[1]);
if (pfdout)
close(pout[0]);
if (pid > 0) {
if (pfdin) {
fcntl(pin[0], F_SETFD, FD_CLOEXEC);
*pfdin = pin[0];
}
if (pfdout) {
fcntl(pout[1], F_SETFD, FD_CLOEXEC);
*pfdout = pout[1];
}
} else {
if (pfdin)
close(pin[0]);
if (pfdout)
close(pout[1]);
return 0;
}
}
return pid;
}
/* Execute an external program in a shell. */
int
shell_exec(int *pfdin, int *pfdout, const char *path,
const char *const *arg)
{
int argc, i;
const char **narg;
char *arg0 = NULL;
int ret;
for (argc = 0; arg[argc]; argc++) ;
if (argc < 1)
return -1;
narg = mem_calloc(argc + 4, sizeof(const char *));
narg[0] = "sh";
narg[1] = "-c";
if (argc > 1) {
asprintf(&arg0, "%s \"$@\"", path);
narg[2] = arg0;
for (i = 0; i < argc; i++)
narg[i + 3] = arg[i];
narg[argc + 3] = NULL;
} else {
narg[2] = path;
narg[3] = NULL;
}
ret = fork_exec(pfdin, pfdout, *narg, narg);
if (arg0)
mem_free(arg0);
mem_free(narg);
return ret;
}
/* Wait for a child process to terminate. */
int child_wait(int *pfdin, int *pfdout, int pid)
{
int stat;
if (pfdin)
close(*pfdin);
if (pfdout)
close(*pfdout);
waitpid(pid, &stat, 0);
return stat;
}
/* Display "Press any key to continue..." and wait for a key press. */
void press_any_key(void)
{
struct termios t_attr_old, t_attr;
tcgetattr(STDIN_FILENO, &t_attr_old);
memcpy(&t_attr, &t_attr_old, sizeof(struct termios));
t_attr.c_lflag &= ~(ICANON | ECHO | ECHONL);
tcsetattr(STDIN_FILENO, TCSAFLUSH, &t_attr);
fflush(stdout);
fputs(_("Press any key to continue..."), stdout);
fflush(stdout);
fgetc(stdin);
fflush(stdin);
fputs("\r\n", stdout);
tcsetattr(STDIN_FILENO, TCSAFLUSH, &t_attr_old);
}
/*
* Display note contents if one is asociated with the currently displayed item
* (to be used together with the '-a' or '-t' flag in non-interactive mode).
* Each line begins with nbtab tabs.
* Print "No note file found", if the notefile does not exists.
*
* (patch submitted by Erik Saule).
*/
static void print_notefile(FILE * out, const char *filename, int nbtab)
{
char *path_to_notefile;
FILE *notefile;
char linestarter[BUFSIZ];
char buffer[BUFSIZ];
int i;
int printlinestarter = 1;
if (nbtab < BUFSIZ) {
for (i = 0; i < nbtab; i++)
linestarter[i] = '\t';
linestarter[nbtab] = '\0';
} else {
linestarter[0] = '\0';
}
asprintf(&path_to_notefile, "%s/%s", path_notes, filename);
notefile = fopen(path_to_notefile, "r");
mem_free(path_to_notefile);
if (notefile) {
while (fgets(buffer, BUFSIZ, notefile) != 0) {
if (printlinestarter) {
fputs(linestarter, out);
printlinestarter = 0;
}
fputs(buffer, out);
if (buffer[strlen(buffer) - 1] == '\n')
printlinestarter = 1;
}
fputs("\n", out);
file_close(notefile, __FILE_POS__);
} else {
fputs(linestarter, out);
fputs(_("No note file found\n"), out);
}
}
/* Print an escape sequence and return its length. */
static int print_escape(const char *s)
{
switch (*(s + 1)) {
case 'a':
putchar('\a');
return 1;
case 'b':
putchar('\b');
return 1;
case 'f':
putchar('\f');
return 1;
case 'n':
putchar('\n');
return 1;
case 'r':
putchar('\r');
return 1;
case 't':
putchar('\t');
return 1;
case 'v':
putchar('\v');
return 1;
case '0':
putchar('\0');
return 1;
case '\'':
putchar('\'');
return 1;
case '"':
putchar('"');
return 1;
case '\?':
putchar('?');
return 1;
case '\\':
putchar('\\');
return 1;
case '\0':
return 0;
default:
return 1;
}
}
/* Parse a format specifier. */
static enum format_specifier parse_fs(const char **s, char *extformat)
{
char buf[FS_EXT_MAXLEN];
int i;
extformat[0] = '\0';
switch (**s) {
case 's':
strcpy(extformat, "epoch");
return FS_STARTDATE;
case 'S':
return FS_STARTDATE;
case 'd':
return FS_DURATION;
case 'e':
strcpy(extformat, "epoch");
return FS_ENDDATE;
case 'E':
return FS_ENDDATE;
case 'm':
return FS_MESSAGE;
case 'n':
return FS_NOTE;
case 'N':
return FS_NOTEFILE;
case 'p':
return FS_PRIORITY;
case 'r':
return FS_REMAINING;
case '(':
/* Long format specifier. */
for ((*s)++, i = 0; **s != ':' && **s != ')'; (*s)++, i++) {
if (**s == '\0')
return FS_EOF;
if (i < FS_EXT_MAXLEN)
buf[i] = **s;
}
buf[(i < FS_EXT_MAXLEN) ? i : FS_EXT_MAXLEN - 1] = '\0';
if (**s == ':') {
for ((*s)++, i = 0; **s != ')'; (*s)++, i++) {
if (**s == '\0')
return FS_EOF;
if (i < FS_EXT_MAXLEN)
extformat[i] = **s;
}
extformat[(i <
FS_EXT_MAXLEN) ? i : FS_EXT_MAXLEN -
1] = '\0';
}
if (!strcmp(buf, "start"))
return FS_STARTDATE;
else if (!strcmp(buf, "duration"))
return FS_DURATION;
else if (!strcmp(buf, "end"))
return FS_ENDDATE;
else if (!strcmp(buf, "remaining"))
return FS_REMAINING;
else if (!strcmp(buf, "message"))
return FS_MESSAGE;
else if (!strcmp(buf, "noteid"))
return FS_NOTE;
else if (!strcmp(buf, "note"))
return FS_NOTEFILE;
else if (!strcmp(buf, "priority"))
return FS_PRIORITY;
else if (!strcmp(buf, "raw"))
return FS_RAW;
else if (!strcmp(buf, "hash"))
return FS_HASH;
else
return FS_UNKNOWN;
case '%':
return FS_PSIGN;
case '\0':
return FS_EOF;
default:
return FS_UNKNOWN;
}
}
/* Print a formatted date to stdout. */
static void print_date(long date, long day, const char *extformat)
{
char buf[BUFSIZ];
if (!strcmp(extformat, "epoch")) {
printf("%ld", date);
} else {
time_t day_end = date_sec_change(day, 0, 1);
time_t t = date;
struct tm lt;
localtime_r((time_t *) & t, <);
if (extformat[0] == '\0' || !strcmp(extformat, "default")) {
if (date >= day && date <= day_end)
strftime(buf, BUFSIZ, "%H:%M", <);
else
strftime(buf, BUFSIZ, "..:..", <);
} else {
strftime(buf, BUFSIZ, extformat, <);
}
printf("%s", buf);
}
}
/* Print a time difference to stdout. */
static void print_datediff(long difference, const char *extformat)
{
const char *p;
const char *numfmt;
bool usetotal;
long value;
if (!strcmp(extformat, "epoch")) {
printf("%ld", difference);
} else {
if (extformat[0] == '\0' || !strcmp(extformat, "default")) {
/* Set a default format if none specified. */
p = "%EH:%M";
} else {
p = extformat;
}
while (*p) {
if (*p == '%') {
p++;
/* Default is to zero-pad, and assume
* the user wants the time unit modulo
* the next biggest time unit. */
numfmt = "%02d";
usetotal = FALSE;
if (*p == '-') {
numfmt = "%d";
p++;
}
if (*p == 'E') {
usetotal = TRUE;
p++;
}
switch (*p) {
case '\0':
return;
case 'd':
value = difference / DAYINSEC;
printf(numfmt, value);
break;
case 'H':
value = difference / HOURINSEC;
if (!usetotal)
value %= DAYINHOURS;
printf(numfmt, value);
break;
case 'M':
value = difference / MININSEC;
if (!usetotal)
value %= HOURINMIN;
printf(numfmt, value);
break;
case 'S':
value = difference;
if (!usetotal)
value %= MININSEC;
printf(numfmt, value);
break;
case '%':
putchar('%');
break;
default:
putchar('?');
break;
}
} else {
putchar(*p);
}
p++;
}
}
}
/* Print a formatted appointment to stdout. */
static void print_apoint_helper(const char *format, long day,
struct apoint *apt, struct recur_apoint *rapt)
{
const char *p;
char extformat[FS_EXT_MAXLEN];
for (p = format; *p; p++) {
if (*p == '%') {
p++;
switch (parse_fs(&p, extformat)) {
case FS_STARTDATE:
print_date(apt->start, day, extformat);
break;
case FS_DURATION:
/* Backwards compatibility: Use epoch by
* default. */
if (*extformat == '\0')
strcpy(extformat, "epoch");
print_datediff(apt->dur, extformat);
break;
case FS_ENDDATE:
print_date(apt->start + apt->dur, day,
extformat);
break;
case FS_REMAINING:
print_datediff(difftime(apt->start, now()),
extformat);
break;
case FS_MESSAGE:
printf("%s", apt->mesg);
break;
case FS_NOTE:
printf("%s", apt->note);
break;
case FS_NOTEFILE:
print_notefile(stdout, apt->note, 1);
break;
case FS_RAW:
if (rapt)
recur_apoint_write(rapt, stdout);
else
apoint_write(apt, stdout);
break;
case FS_HASH:
if (rapt)
printf("%s", recur_apoint_hash(rapt));
else
printf("%s", apoint_hash(apt));
break;
case FS_PSIGN:
putchar('%');
break;
case FS_EOF:
return;
break;
default:
putchar('?');
break;
}
} else if (*p == '\\') {
p += print_escape(p);
} else {
putchar(*p);
}
}
}
/* Print a formatted event to stdout. */
static void print_event_helper(const char *format, long day, struct event *ev,
struct recur_event *rev)
{
const char *p;
char extformat[FS_EXT_MAXLEN];
for (p = format; *p; p++) {
if (*p == '%') {
p++;
switch (parse_fs(&p, extformat)) {
case FS_MESSAGE:
printf("%s", ev->mesg);
break;
case FS_NOTE:
printf("%s", ev->note);
break;
case FS_NOTEFILE:
print_notefile(stdout, ev->note, 1);
break;
case FS_PSIGN:
putchar('%');
break;
case FS_RAW:
if (rev)
recur_event_write(rev, stdout);
else
event_write(ev, stdout);
break;
case FS_HASH:
if (rev)
printf("%s", recur_event_hash(rev));
else
printf("%s", event_hash(ev));
break;
case FS_EOF:
return;
break;
default:
putchar('?');
break;
}
} else if (*p == '\\') {
p += print_escape(p);
} else {
putchar(*p);
}
}
}
/* Print a formatted appointment to stdout. */
void print_apoint(const char *format, long day, struct apoint *apt)
{
print_apoint_helper(format, day, apt, NULL);
}
/* Print a formatted event to stdout. */
void print_event(const char *format, long day, struct event *ev)
{
print_event_helper(format, day, ev, NULL);
}
/* Print a formatted recurrent appointment to stdout. */
void
print_recur_apoint(const char *format, long day, time_t occurrence,
struct recur_apoint *rapt)
{
struct apoint apt;
apt.start = occurrence;
apt.dur = rapt->dur;
apt.mesg = rapt->mesg;
apt.note = rapt->note;
print_apoint_helper(format, day, &apt, rapt);
}
/* Print a formatted recurrent event to stdout. */
void print_recur_event(const char *format, long day,
struct recur_event *rev)
{
struct event ev;
ev.mesg = rev->mesg;
ev.note = rev->note;
print_event_helper(format, day, &ev, rev);
}
/* Print a formatted todo item to stdout. */
void print_todo(const char *format, struct todo *todo)
{
const char *p;
char extformat[FS_EXT_MAXLEN];
for (p = format; *p; p++) {
if (*p == '%') {
p++;
switch (parse_fs(&p, extformat)) {
case FS_PRIORITY:
printf("%d", abs(todo->id));
break;
case FS_MESSAGE:
printf("%s", todo->mesg);
break;
case FS_NOTE:
printf("%s", todo->note);
break;
case FS_NOTEFILE:
print_notefile(stdout, todo->note, 1);
break;
case FS_RAW:
todo_write(todo, stdout);
break;
case FS_HASH:
printf("%s", todo_hash(todo));
break;
case FS_PSIGN:
putchar('%');
break;
case FS_EOF:
return;
break;
default:
putchar('?');
break;
}
} else if (*p == '\\') {
p += print_escape(p);
} else {
putchar(*p);
}
}
}
int
asprintf(char **str, const char *format, ...)
{
struct string s;
va_list ap;
int n;
va_start(ap, format);
string_init(&s);
n = string_vcatf(&s, format, ap);
*str = string_buf(&s);
va_end(ap);
return n;
}
int starts_with(const char *s, const char *p)
{
for (; *p && *p == *s; s++, p++);
return (*p == '\0');
}
int starts_with_ci(const char *s, const char *p)
{
for (; *p && tolower(*p) == tolower(*s); s++, p++);
return (*p == '\0');
}
int hash_matches(const char *pattern, const char *hash)
{
int invert = 0;
if (pattern[0] == '!') {
invert = 1;
pattern++;
}
return (starts_with(hash, pattern) != invert);
}
int show_dialogs(void)
{
return (!quiet) && conf.system_dialogs;
}
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