static PyObject *
unicap_getadjustments(PyObject *self, PyObject *args)
{
unicap_handle_t handle = getHandle();
unicap_format_t format = getformat(handle);
const char * formatstr = format.identifier;
char adjstr[1024];
double duration = getduration(handle);
snprintf(adjstr, 1024, "Format:%s;Shutter:%f",formatstr, duration );
PyObject * pystr = PyUnicode_FromString(adjstr);
return pystr;
}
void
acommand(int pc)
{
int eqcom;
Map *map;
char *fmt;
char buf[512];
if (pc == '=') {
eqcom = 1;
fmt = eqformat;
map = dotmap;
} else {
eqcom = 0;
fmt = stformat;
if (pc == '/')
map = cormap;
else
map = symmap;
}
if (!map) {
sprint(buf, "no map for %c", pc);
error(buf);
}
switch (rdc())
{
case 'm':
if (eqcom)
error(BADEQ);
cmdmap(map);
break;
case 'L':
case 'l':
if (eqcom)
error(BADEQ);
cmdsrc(lastc, map);
break;
case 'W':
case 'w':
if (eqcom)
error(BADEQ);
cmdwrite(lastc, map);
break;
default:
reread();
getformat(fmt);
scanform(cntval, !eqcom, fmt, map, eqcom);
}
}
int
capture(unicap_handle_t handle)
{
unicap_format_t format = getformat(handle);
volatile int framecounter = 1;
int imagewidth;
int imageheight;
imagewidth = format.size.width;
imageheight = format.size.height;
nrOfPixel = imagewidth * imageheight;
unicap_register_callback(handle, UNICAP_EVENT_NEW_FRAME,
(unicap_callback_t)new_frame_cb, (void*)&framecounter);
unicap_start_capture(handle);
while (framecounter > 0)
{
usleep(100000);
}
unicap_stop_capture(handle);
return 0;
}
static void io_read (void)
{
lua_Object o = lua_getparam (1);
if (o == LUA_NOOBJECT) /* free format */
read_free();
else /* formatted */
{
int m, dummy1, dummy2;
switch (getformat(lua_check_string(1, "read"), &dummy1, &m, &dummy2))
{
case 's':
if (m < 0)
read_until_blank();
else
read_m(m);
lua_pushstring(add_char(0));
break;
case 'i': /* can read as float, since it makes no difference to Lua */
case 'f':
{
double d;
int result;
if (m < 0)
result = fscanf(in, "%lf", &d);
else
{
read_m(m);
result = sscanf(add_char(0), "%lf", &d);
}
if (result == 1)
lua_pushnumber(d);
else
lua_pushnil();
break;
}
}
}
}
static void io_write (void)
{
int status = 0;
if (lua_getparam (2) == LUA_NOOBJECT) /* free format */
{
lua_Object o1 = lua_getparam(1);
if (lua_isnumber(o1))
status = fprintf (out, "%g", lua_getnumber(o1)) >= 0;
else if (lua_isstring(o1))
status = fprintf (out, "%s", lua_getstring(o1)) >= 0;
}
else /* formated */
{
int just, m, n;
switch (getformat (lua_check_string(2, "write"), &just, &m, &n))
{
case 's':
{
lua_Object p = lua_getparam(1);
if (lua_isstring(p))
status = write_string(lua_getstring(p), just, m);
else
status = 0;
break;
}
case 'f':
status = write_float(just, m, n);
break;
case 'i':
status = write_int(just, m, n);
break;
}
}
if (status)
lua_pushnumber(status);
else
lua_pushnil();
}
int
main(int argc, char **argv)
{
bool have_format = false;
bool infinity = false;
bool nofinalnl = false;
bool randomize = false;
bool use_random = false;
int ch;
int mask = 0;
int n = 0;
double begin = BEGIN_DEF;
double divisor;
double ender = ENDER_DEF;
double s = STEP_DEF;
double x, y;
long i;
long reps = REPS_DEF;
while ((ch = getopt(argc, argv, "b:cnp:rs:w:")) != -1)
switch (ch) {
case 'b':
boring = true;
/* FALLTHROUGH */
case 'w':
if (strlcpy(format, optarg, sizeof(format)) >=
sizeof(format))
errx(1, "-%c word too long", ch);
have_format = true;
break;
case 'c':
chardata = true;
break;
case 'n':
nofinalnl = true;
break;
case 'p':
prec = atoi(optarg);
if (prec < 0)
errx(1, "bad precision value");
have_format = true;
break;
case 'r':
randomize = true;
break;
case 's':
sepstring = optarg;
break;
default:
usage();
}
argc -= optind;
argv += optind;
switch (argc) { /* examine args right to left, falling thru cases */
case 4:
if (!is_default(argv[3])) {
if (!sscanf(argv[3], "%lf", &s))
errx(1, "bad s value: %s", argv[3]);
mask |= HAVE_STEP;
if (randomize)
use_random = true;
}
/* FALLTHROUGH */
case 3:
if (!is_default(argv[2])) {
if (!sscanf(argv[2], "%lf", &ender))
ender = argv[2][strlen(argv[2])-1];
mask |= HAVE_ENDER;
if (prec < 0)
n = getprec(argv[2]);
}
/* FALLTHROUGH */
case 2:
if (!is_default(argv[1])) {
if (!sscanf(argv[1], "%lf", &begin))
begin = argv[1][strlen(argv[1])-1];
mask |= HAVE_BEGIN;
if (prec < 0)
prec = getprec(argv[1]);
if (n > prec) /* maximum precision */
prec = n;
}
/* FALLTHROUGH */
case 1:
if (!is_default(argv[0])) {
if (!sscanf(argv[0], "%ld", &reps))
errx(1, "bad reps value: %s", argv[0]);
mask |= HAVE_REPS;
}
break;
case 0:
usage();
default:
errx(1, "too many arguments. What do you mean by %s?",
argv[4]);
}
getformat();
if (prec == -1)
prec = 0;
while (mask) /* 4 bit mask has 1's where last 4 args were given */
switch (mask) { /* fill in the 0's by default or computation */
case HAVE_STEP:
case HAVE_ENDER:
case HAVE_ENDER | HAVE_STEP:
case HAVE_BEGIN:
case HAVE_BEGIN | HAVE_STEP:
reps = REPS_DEF;
mask |= HAVE_REPS;
break;
case HAVE_BEGIN | HAVE_ENDER:
s = ender > begin ? 1 : -1;
mask |= HAVE_STEP;
break;
case HAVE_BEGIN | HAVE_ENDER | HAVE_STEP:
if (randomize)
reps = REPS_DEF;
else if (s == 0.0)
reps = 0;
else
reps = (ender - begin + s) / s;
if (reps <= 0)
errx(1, "impossible stepsize");
mask = 0;
break;
case HAVE_REPS:
case HAVE_REPS | HAVE_STEP:
begin = BEGIN_DEF;
mask |= HAVE_BEGIN;
break;
case HAVE_REPS | HAVE_ENDER:
s = STEP_DEF;
mask = HAVE_REPS | HAVE_ENDER | HAVE_STEP;
break;
case HAVE_REPS | HAVE_ENDER | HAVE_STEP:
if (randomize)
begin = BEGIN_DEF;
else if (reps == 0)
errx(1, "must specify begin if reps == 0");
begin = ender - reps * s + s;
mask = 0;
break;
case HAVE_REPS | HAVE_BEGIN:
s = STEP_DEF;
mask = HAVE_REPS | HAVE_BEGIN | HAVE_STEP;
break;
case HAVE_REPS | HAVE_BEGIN | HAVE_STEP:
if (randomize)
ender = ENDER_DEF;
else
ender = begin + reps * s - s;
mask = 0;
break;
case HAVE_REPS | HAVE_BEGIN | HAVE_ENDER:
if (reps == 0)
errx(1, "infinite sequences cannot be bounded");
else if (reps == 1)
s = 0.0;
else
s = (ender - begin) / (reps - 1);
mask = 0;
break;
case HAVE_REPS | HAVE_BEGIN | HAVE_ENDER | HAVE_STEP:
/* if reps given and implied, */
if (!randomize && s != 0.0) {
long t = (ender - begin + s) / s;
if (t <= 0)
errx(1, "impossible stepsize");
if (t < reps) /* take lesser */
reps = t;
}
mask = 0;
break;
default:
errx(1, "bad mask");
}
if (reps == 0)
infinity = true;
if (randomize) {
if (use_random) {
srandom((unsigned long)s);
divisor = (double)INT32_MAX + 1;
} else
divisor = (double)UINT32_MAX + 1;
/*
* Attempt to DWIM when the user has specified an
* integer range within that of the random number
* generator: distribute the numbers equally in
* the range [begin .. ender]. Jot's default %.0f
* format would make the appearance of the first and
* last specified value half as likely as the rest.
*/
if (!have_format && prec == 0 &&
begin >= 0 && begin < divisor &&
ender >= 0 && ender < divisor) {
if (begin <= ender)
ender += 1;
else
begin += 1;
nosign = true;
intdata = true;
(void)strlcpy(format,
chardata ? "%c" : "%u", sizeof(format));
}
x = ender - begin;
for (i = 1; i <= reps || infinity; i++) {
if (use_random)
y = random() / divisor;
else
y = arc4random() / divisor;
if (putdata(y * x + begin, !(reps - i)))
errx(1, "range error in conversion");
}
} else
for (i = 1, x = begin; i <= reps || infinity; i++, x += s)
if (putdata(x, !(reps - i)))
errx(1, "range error in conversion");
if (!nofinalnl)
putchar('\n');
exit(0);
}
int
main(int argc, char **argv)
{
double xd, yd;
long id;
double *x = &xd;
double *y = &yd;
long *i = &id;
unsigned int mask = 0;
int n = 0;
int ch;
while ((ch = getopt(argc, argv, "rb:w:cs:np:")) != -1)
switch ((char)ch) {
case 'r':
randomize = 1;
break;
case 'c':
chardata = 1;
break;
case 'n':
nofinalnl = 1;
break;
case 'b':
boring = 1;
/* FALLTHROUGH */
case 'w':
if (strlcpy(format, optarg, sizeof(format)) >=
sizeof(format))
errx(1, "-%c word too long", ch);
break;
case 's':
sepstring = optarg;
break;
case 'p':
prec = atoi(optarg);
if (prec <= 0)
errx(1, "bad precision value");
break;
default:
usage();
}
argc -= optind;
argv += optind;
switch (argc) { /* examine args right to left, falling thru cases */
case 4:
if (!is_default(argv[3])) {
if (!sscanf(argv[3], "%lf", &s))
errx(1, "bad s value: %s", argv[3]);
mask |= 01;
}
case 3:
if (!is_default(argv[2])) {
if (!sscanf(argv[2], "%lf", &ender))
ender = argv[2][strlen(argv[2])-1];
mask |= 02;
if (!prec)
n = getprec(argv[2]);
}
case 2:
if (!is_default(argv[1])) {
if (!sscanf(argv[1], "%lf", &begin))
begin = argv[1][strlen(argv[1])-1];
mask |= 04;
if (!prec)
prec = getprec(argv[1]);
if (n > prec) /* maximum precision */
prec = n;
}
case 1:
if (!is_default(argv[0])) {
if (!sscanf(argv[0], "%ld", &reps))
errx(1, "bad reps value: %s", argv[0]);
mask |= 010;
}
break;
case 0:
usage();
default:
errx(1, "too many arguments. What do you mean by %s?",
argv[4]);
}
getformat();
while (mask) /* 4 bit mask has 1's where last 4 args were given */
switch (mask) { /* fill in the 0's by default or computation */
case 001:
reps = REPS_DEF;
mask = 011;
break;
case 002:
reps = REPS_DEF;
mask = 012;
break;
case 003:
reps = REPS_DEF;
mask = 013;
break;
case 004:
reps = REPS_DEF;
mask = 014;
break;
case 005:
reps = REPS_DEF;
mask = 015;
break;
case 006:
reps = REPS_DEF;
mask = 016;
break;
case 007:
if (randomize) {
reps = REPS_DEF;
mask = 0;
break;
}
if (s == 0.0) {
reps = 0;
mask = 0;
break;
}
reps = (ender - begin + s) / s;
if (reps <= 0)
errx(1, "impossible stepsize");
mask = 0;
break;
case 010:
begin = BEGIN_DEF;
mask = 014;
break;
case 011:
begin = BEGIN_DEF;
mask = 015;
break;
case 012:
s = (randomize ? time(NULL) : STEP_DEF);
mask = 013;
break;
case 013:
if (randomize)
begin = BEGIN_DEF;
else if (reps == 0)
errx(1, "must specify begin if reps == 0");
begin = ender - reps * s + s;
mask = 0;
break;
case 014:
s = (randomize ? -1.0 : STEP_DEF);
mask = 015;
break;
case 015:
if (randomize)
ender = ENDER_DEF;
else
ender = begin + reps * s - s;
mask = 0;
break;
case 016:
if (randomize)
s = -1.0;
else if (reps == 0)
errx(1, "infinite sequences cannot be bounded");
else if (reps == 1)
s = 0.0;
else
s = (ender - begin) / (reps - 1);
mask = 0;
break;
case 017: /* if reps given and implied, */
if (!randomize && s != 0.0) {
long t = (ender - begin + s) / s;
if (t <= 0)
errx(1, "impossible stepsize");
if (t < reps) /* take lesser */
reps = t;
}
mask = 0;
break;
default:
errx(1, "bad mask");
}
if (reps == 0)
infinity = 1;
if (randomize) {
*x = (ender - begin) * (ender > begin ? 1 : -1);
for (*i = 1; *i <= reps || infinity; (*i)++) {
*y = arc4random() / (double)0xffffffffU;
if (putdata(*y * *x + begin, reps - *i))
errx(1, "range error in conversion");
}
} else
for (*i = 1, *x = begin; *i <= reps || infinity; (*i)++, *x += s)
if (putdata(*x, reps - *i))
errx(1, "range error in conversion");
if (!nofinalnl)
putchar('\n');
exit(0);
}
int
main(int argc, char *argv[])
{
double x;
double y;
long i;
unsigned int mask = 0;
int n = 0;
int ch;
const char *errstr;
while ((ch = getopt(argc, argv, "rb:w:cs:np:")) != -1)
switch (ch) {
case 'r':
randomize = true;
break;
case 'c':
chardata = true;
break;
case 'n':
finalnl = false;
break;
case 'b':
boring = true;
if (strlcpy(format, optarg, sizeof(format)) >=
sizeof(format))
errx(1, "-b word too long");
break;
case 'w':
if (strlcpy(format, optarg, sizeof(format)) >=
sizeof(format))
errx(1, "-w word too long");
break;
case 's':
if (strlcpy(sepstring, optarg, sizeof(sepstring)) >=
sizeof(sepstring))
errx(1, "-s word too long");
break;
case 'p':
prec = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL)
errx(1, "bad precision value, %s: %s", errstr,
optarg);
break;
default:
usage();
}
argc -= optind;
argv += optind;
switch (argc) { /* examine args right to left, falling thru cases */
case 4:
if (!is_default(argv[3])) {
if (!sscanf(argv[3], "%lf", &s))
errx(1, "Bad s value: %s", argv[3]);
mask |= 01;
if (randomize)
warnx("random seeding not supported");
}
case 3:
if (!is_default(argv[2])) {
if (!sscanf(argv[2], "%lf", &ender))
ender = argv[2][strlen(argv[2])-1];
mask |= 02;
if (prec == -1)
n = getprec(argv[2]);
}
case 2:
if (!is_default(argv[1])) {
if (!sscanf(argv[1], "%lf", &begin))
begin = argv[1][strlen(argv[1])-1];
mask |= 04;
if (prec == -1)
prec = getprec(argv[1]);
if (n > prec) /* maximum precision */
prec = n;
}
case 1:
if (!is_default(argv[0])) {
if (!sscanf(argv[0], "%ld", &reps))
errx(1, "Bad reps value: %s", argv[0]);
mask |= 010;
if (prec == -1)
prec = 0;
}
break;
case 0:
usage();
break;
default:
errx(1, "Too many arguments. What do you mean by %s?",
argv[4]);
}
getformat();
while (mask) /* 4 bit mask has 1's where last 4 args were given */
switch (mask) { /* fill in the 0's by default or computation */
case 001:
reps = REPS_DEF;
mask = 011;
break;
case 002:
reps = REPS_DEF;
mask = 012;
break;
case 003:
reps = REPS_DEF;
mask = 013;
break;
case 004:
reps = REPS_DEF;
mask = 014;
break;
case 005:
reps = REPS_DEF;
mask = 015;
break;
case 006:
reps = REPS_DEF;
mask = 016;
break;
case 007:
if (randomize) {
reps = REPS_DEF;
mask = 0;
break;
}
if (s == 0.0) {
reps = 0;
mask = 0;
break;
}
reps = (ender - begin + s) / s;
if (reps <= 0)
errx(1, "Impossible stepsize");
mask = 0;
break;
case 010:
begin = BEGIN_DEF;
mask = 014;
break;
case 011:
begin = BEGIN_DEF;
mask = 015;
break;
case 012:
s = STEP_DEF;
mask = 013;
break;
case 013:
if (randomize)
begin = BEGIN_DEF;
else if (reps == 0)
errx(1, "Must specify begin if reps == 0");
begin = ender - reps * s + s;
mask = 0;
break;
case 014:
s = STEP_DEF;
mask = 015;
break;
case 015:
if (randomize)
ender = ENDER_DEF;
else
ender = begin + reps * s - s;
mask = 0;
break;
case 016:
if (reps == 0)
errx(1, "Infinite sequences cannot be bounded");
else if (reps == 1)
s = 0.0;
else
s = (ender - begin) / (reps - 1);
mask = 0;
break;
case 017: /* if reps given and implied, */
if (!randomize && s != 0.0) {
long t = (ender - begin + s) / s;
if (t <= 0)
errx(1, "Impossible stepsize");
if (t < reps) /* take lesser */
reps = t;
}
mask = 0;
break;
default:
errx(1, "bad mask");
}
if (reps == 0)
infinity = true;
if (randomize) {
x = (ender - begin) * (ender > begin ? 1 : -1);
for (i = 1; i <= reps || infinity; i++) {
double v;
y = arc4random() / ((double)0xffffffff + 1);
v = y * x + begin;
if (putdata(v, reps == i && !infinity))
errx(1, "range error in conversion: %f", v);
}
}
else
for (i = 1, x = begin; i <= reps || infinity; i++, x += s)
if (putdata(x, reps == i && !infinity))
errx(1, "range error in conversion: %f", x);
if (finalnl)
putchar('\n');
exit(0);
}
static char *
_fmt(const char *format, const struct tm *t, char *pt,
const char *ptlim, int *warnp)
{
for ( ; *format; ++format) {
if (*format == '%') {
int modifier = 0;
label:
switch (*++format) {
case '\0':
--format;
break;
case 'A':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
"?" : Locale->weekday[t->tm_wday],
pt, ptlim, modifier);
continue;
case 'a':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
"?" : Locale->wday[t->tm_wday],
pt, ptlim, modifier);
continue;
case 'B':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
"?" : Locale->month[t->tm_mon],
pt, ptlim, modifier);
continue;
case 'b':
case 'h':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
"?" : Locale->mon[t->tm_mon],
pt, ptlim, modifier);
continue;
case 'C':
/*
** %C used to do a...
** _fmt("%a %b %e %X %Y", t);
** ...whereas now POSIX 1003.2 calls for
** something completely different.
** (ado, 1993-05-24)
*/
pt = _yconv(t->tm_year, TM_YEAR_BASE,
true, false, pt, ptlim, modifier);
continue;
case 'c':
{
int warn2 = IN_SOME;
pt = _fmt(Locale->c_fmt, t, pt, ptlim, &warn2);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
if (warn2 > *warnp)
*warnp = warn2;
}
continue;
case 'D':
pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp);
continue;
case 'd':
pt = _conv(t->tm_mday, getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'E':
case 'O':
/*
** C99 locale modifiers.
** The sequences
** %Ec %EC %Ex %EX %Ey %EY
** %Od %oe %OH %OI %Om %OM
** %OS %Ou %OU %OV %Ow %OW %Oy
** are supposed to provide alternate
** representations.
*/
goto label;
case '_':
case '-':
case '0':
case '^':
case '#':
modifier = *format;
goto label;
case 'e':
pt = _conv(t->tm_mday, getformat(modifier, "%2d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'F':
pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp);
continue;
case 'H':
pt = _conv(t->tm_hour, getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'I':
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'j':
pt = _conv(t->tm_yday + 1, getformat(modifier, "%03d", "%3d", "%d", "%03d"), pt, ptlim);
continue;
case 'k':
/*
** This used to be...
** _conv(t->tm_hour % 12 ?
** t->tm_hour % 12 : 12, 2, ' ');
** ...and has been changed to the below to
** match SunOS 4.1.1 and Arnold Robbins'
** strftime version 3.0. That is, "%k" and
** "%l" have been swapped.
** (ado, 1993-05-24)
*/
pt = _conv(t->tm_hour, getformat(modifier, "%2d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
#ifdef KITCHEN_SINK
case 'K':
/*
** After all this time, still unclaimed!
*/
pt = _add("kitchen sink", pt, ptlim);
continue;
#endif /* defined KITCHEN_SINK */
case 'l':
/*
** This used to be...
** _conv(t->tm_hour, 2, ' ');
** ...and has been changed to the below to
** match SunOS 4.1.1 and Arnold Robbin's
** strftime version 3.0. That is, "%k" and
** "%l" have been swapped.
** (ado, 1993-05-24)
*/
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
getformat(modifier, "%2d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'M':
pt = _conv(t->tm_min, getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'm':
pt = _conv(t->tm_mon + 1, getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'n':
pt = _add("\n", pt, ptlim, modifier);
continue;
case 'P':
case 'p':
pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
Locale->pm :
Locale->am,
pt, ptlim, (*format == 'P') ? FORCE_LOWER_CASE : modifier);
continue;
case 'R':
pt = _fmt("%H:%M", t, pt, ptlim, warnp);
continue;
case 'r':
pt = _fmt("%I:%M:%S %p", t, pt, ptlim, warnp);
continue;
case 'S':
pt = _conv(t->tm_sec, getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 's':
{
struct tm tm;
char buf[INT_STRLEN_MAXIMUM(
time64_t) + 1];
time64_t mkt;
tm = *t;
mkt = mktime64(&tm);
if (TYPE_SIGNED(time64_t))
snprintf(buf, sizeof(buf), "%"PRIdMAX,
(intmax_t) mkt);
else snprintf(buf, sizeof(buf), "%"PRIuMAX,
(uintmax_t) mkt);
pt = _add(buf, pt, ptlim, modifier);
}
continue;
case 'T':
pt = _fmt("%H:%M:%S", t, pt, ptlim, warnp);
continue;
case 't':
pt = _add("\t", pt, ptlim, modifier);
continue;
case 'U':
pt = _conv((t->tm_yday + DAYSPERWEEK -
t->tm_wday) / DAYSPERWEEK,
getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'u':
/*
** From Arnold Robbins' strftime version 3.0:
** "ISO 8601: Weekday as a decimal number
** [1 (Monday) - 7]"
** (ado, 1993-05-24)
*/
pt = _conv((t->tm_wday == 0) ?
DAYSPERWEEK : t->tm_wday,
"%d", pt, ptlim);
continue;
case 'V': /* ISO 8601 week number */
case 'G': /* ISO 8601 year (four digits) */
case 'g': /* ISO 8601 year (two digits) */
/*
** From Arnold Robbins' strftime version 3.0: "the week number of the
** year (the first Monday as the first day of week 1) as a decimal number
** (01-53)."
** (ado, 1993-05-24)
**
** From <http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html> by Markus Kuhn:
** "Week 01 of a year is per definition the first week which has the
** Thursday in this year, which is equivalent to the week which contains
** the fourth day of January. In other words, the first week of a new year
** is the week which has the majority of its days in the new year. Week 01
** might also contain days from the previous year and the week before week
** 01 of a year is the last week (52 or 53) of the previous year even if
** it contains days from the new year. A week starts with Monday (day 1)
** and ends with Sunday (day 7). For example, the first week of the year
** 1997 lasts from 1996-12-30 to 1997-01-05..."
** (ado, 1996-01-02)
*/
{
int year;
int base;
int yday;
int wday;
int w;
year = t->tm_year;
base = TM_YEAR_BASE;
yday = t->tm_yday;
wday = t->tm_wday;
for ( ; ; ) {
int len;
int bot;
int top;
len = isleap_sum(year, base) ?
DAYSPERLYEAR :
DAYSPERNYEAR;
/*
** What yday (-3 ... 3) does
** the ISO year begin on?
*/
bot = ((yday + 11 - wday) %
DAYSPERWEEK) - 3;
/*
** What yday does the NEXT
** ISO year begin on?
*/
top = bot -
(len % DAYSPERWEEK);
if (top < -3)
top += DAYSPERWEEK;
top += len;
if (yday >= top) {
++base;
w = 1;
break;
}
if (yday >= bot) {
w = 1 + ((yday - bot) /
DAYSPERWEEK);
break;
}
--base;
yday += isleap_sum(year, base) ?
DAYSPERLYEAR :
DAYSPERNYEAR;
}
#ifdef XPG4_1994_04_09
if ((w == 52 &&
t->tm_mon == TM_JANUARY) ||
(w == 1 &&
t->tm_mon == TM_DECEMBER))
w = 53;
#endif /* defined XPG4_1994_04_09 */
if (*format == 'V')
pt = _conv(w, getformat(modifier, "%02d", "%2d", "%d", "%02d"),
pt, ptlim);
else if (*format == 'g') {
*warnp = IN_ALL;
pt = _yconv(year, base,
false, true,
pt, ptlim, modifier);
} else pt = _yconv(year, base,
true, true,
pt, ptlim, modifier);
}
continue;
case 'v':
/*
** From Arnold Robbins' strftime version 3.0:
** "date as dd-bbb-YYYY"
** (ado, 1993-05-24)
*/
pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp);
continue;
case 'W':
pt = _conv((t->tm_yday + DAYSPERWEEK -
(t->tm_wday ?
(t->tm_wday - 1) :
(DAYSPERWEEK - 1))) / DAYSPERWEEK,
getformat(modifier, "%02d", "%2d", "%d", "%02d"), pt, ptlim);
continue;
case 'w':
pt = _conv(t->tm_wday, "%d", pt, ptlim);
continue;
case 'X':
pt = _fmt(Locale->X_fmt, t, pt, ptlim, warnp);
continue;
case 'x':
{
int warn2 = IN_SOME;
pt = _fmt(Locale->x_fmt, t, pt, ptlim, &warn2);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
if (warn2 > *warnp)
*warnp = warn2;
}
continue;
case 'y':
*warnp = IN_ALL;
pt = _yconv(t->tm_year, TM_YEAR_BASE,
false, true,
pt, ptlim, modifier);
continue;
case 'Y':
pt = _yconv(t->tm_year, TM_YEAR_BASE,
true, true,
pt, ptlim, modifier);
continue;
case 'Z':
#ifdef TM_ZONE
// BEGIN: Android-changed.
{
const char* zone = t->TM_ZONE;
if (!zone || !*zone) {
// "The value of tm_isdst shall be positive if Daylight Savings Time is
// in effect, 0 if Daylight Savings Time is not in effect, and negative
// if the information is not available."
if (t->tm_isdst == 0) zone = tzname[0];
else if (t->tm_isdst > 0) zone = tzname[1];
// "Replaced by the timezone name or abbreviation, or by no bytes if no
// timezone information exists."
if (!zone || !*zone) zone = "";
}
pt = _add(zone, pt, ptlim, modifier);
}
// END: Android-changed.
#else
if (t->tm_isdst >= 0)
pt = _add(tzname[t->tm_isdst != 0],
pt, ptlim);
#endif
/*
** C99 says that %Z must be replaced by the
** empty string if the time zone is not
** determinable.
*/
continue;
case 'z':
{
long diff;
char const * sign;
if (t->tm_isdst < 0)
continue;
#ifdef TM_GMTOFF
diff = t->TM_GMTOFF;
#else /* !defined TM_GMTOFF */
/*
** C99 says that the UT offset must
** be computed by looking only at
** tm_isdst. This requirement is
** incorrect, since it means the code
** must rely on magic (in this case
** altzone and timezone), and the
** magic might not have the correct
** offset. Doing things correctly is
** tricky and requires disobeying C99;
** see GNU C strftime for details.
** For now, punt and conform to the
** standard, even though it's incorrect.
**
** C99 says that %z must be replaced by the
** empty string if the time zone is not
** determinable, so output nothing if the
** appropriate variables are not available.
*/
if (t->tm_isdst == 0)
#ifdef USG_COMPAT
diff = -timezone;
#else /* !defined USG_COMPAT */
continue;
#endif /* !defined USG_COMPAT */
else
#ifdef ALTZONE
diff = -altzone;
#else /* !defined ALTZONE */
continue;
#endif /* !defined ALTZONE */
#endif /* !defined TM_GMTOFF */
if (diff < 0) {
sign = "-";
diff = -diff;
} else sign = "+";
pt = _add(sign, pt, ptlim, modifier);
diff /= SECSPERMIN;
diff = (diff / MINSPERHOUR) * 100 +
(diff % MINSPERHOUR);
pt = _conv(diff, getformat(modifier, "%04d", "%4d", "%d", "%04d"), pt, ptlim);
}
continue;
case '+':
pt = _fmt(Locale->date_fmt, t, pt, ptlim,
warnp);
continue;
case '%':
/*
** X311J/88-090 (4.12.3.5): if conversion char is
** undefined, behavior is undefined. Print out the
** character itself as printf(3) also does.
*/
default:
break;
}
}