* [V2 0/4] hwclock: remove date(1)
@ 2017-02-25 18:25 J William Piggott
2017-02-25 18:28 ` [V2 1/4] hwclock: use parse_datetime function J William Piggott
` (4 more replies)
0 siblings, 5 replies; 11+ messages in thread
From: J William Piggott @ 2017-02-25 18:25 UTC (permalink / raw)
To: Karel Zak; +Cc: util-linux
* The last commit/patch adds hwclock-date.c
I added this file in case testers do not have 'bison' installed. It
may, or may not, need to be tracked depending on how it is to be
maintained. The 'c' file probably should be included in the
distributed source archive to avoid the bison dependency. Karel, I
don't know if you want to create a separate clean and build target
for hwclock-date.c, or how you want to handle this. So, if you don't
mind, I'll leave this detail to you.
Testers that want to build it can:
$ cd sys-utils/
$ rm hwclock-date.c
$ bison -o hwclock-date.c hwclock-date.y
It does require bison 2.0 or newer, yacc won't work.
---
The following changes since commit 7ab6461fae3848ea85f494f29e26229717685ae3:
docs: add note about branches to README (2017-02-24 14:19:04 +0100)
are available in the git repository at:
git@github.com:jwpi/util-linux.git hwclock-date2m
for you to fetch changes up to 46f1d03062ff66125f38abafd922412b6c182f49:
hwclock: add sys-utils/hwclock-date.c (2017-02-24 14:41:32 -0500)
----------------------------------------------------------------
J William Piggott (4):
hwclock: use parse_datetime function
build-system: add hwclock-date
hwclock: add hwclock-date files
hwclock: add sys-utils/hwclock-date.c
include/cctype.h | 357 ++++
sys-utils/Makemodule.am | 1 +
sys-utils/hwclock-date.c | 4307 ++++++++++++++++++++++++++++++++++++++++++++++
sys-utils/hwclock-date.y | 2427 ++++++++++++++++++++++++++
sys-utils/hwclock.c | 104 +-
sys-utils/hwclock.h | 10 +
6 files changed, 7107 insertions(+), 99 deletions(-)
create mode 100644 include/cctype.h
create mode 100644 sys-utils/hwclock-date.c
create mode 100644 sys-utils/hwclock-date.y
^ permalink raw reply [flat|nested] 11+ messages in thread
* [V2 1/4] hwclock: use parse_datetime function
2017-02-25 18:25 [V2 0/4] hwclock: remove date(1) J William Piggott
@ 2017-02-25 18:28 ` J William Piggott
2017-02-25 18:30 ` [V2 2/4] build-system: add hwclock-date J William Piggott
` (3 subsequent siblings)
4 siblings, 0 replies; 11+ messages in thread
From: J William Piggott @ 2017-02-25 18:28 UTC (permalink / raw)
To: Karel Zak; +Cc: util-linux
* hwclock.c: replace interpret_date_string() with parse_datetime2().
Eliminates shell injection vulnerability from popen() date(1).
Removes system dependency on date(1).
Significant reduction in hwclock execution time.
Significant cleanup of hwclock.c code.
* Bug fix for "hwclock --predict --date 'bad_date'" printing:
hwclock: No usable set-to time. Cannot set clock.
The message now matches date(1) for an invalid --date argument.
Signed-off-by: J William Piggott <elseifthen@gmx.com>
---
sys-utils/hwclock.c | 104 +++-------------------------------------------------
1 file changed, 5 insertions(+), 99 deletions(-)
diff --git a/sys-utils/hwclock.c b/sys-utils/hwclock.c
index 21d1304..276a637 100644
--- a/sys-utils/hwclock.c
+++ b/sys-utils/hwclock.c
@@ -639,100 +639,6 @@ display_time(const bool hclock_valid, struct timeval hwctime)
}
/*
- * Interpret the value of the --date option, which is something like
- * "13:05:01". In fact, it can be any of the myriad ASCII strings that
- * specify a time which the "date" program can understand. The date option
- * value in question is our "dateopt" argument.
- *
- * The specified time is in the local time zone.
- *
- * Our output, "*time_p", is a seconds-into-epoch time.
- *
- * We use the "date" program to interpret the date string. "date" must be
- * runnable by issuing the command "date" to the /bin/sh shell. That means
- * in must be in the current PATH.
- *
- * If anything goes wrong (and many things can), we return code 10
- * and arbitrary *time_p. Otherwise, return code is 0 and *time_p is valid.
- */
-static int interpret_date_string(const struct hwclock_control *ctl,
- time_t *const time_p)
-{
- FILE *date_child_fp = NULL;
- char *date_command = NULL;
- char *date_resp = NULL;
- size_t len = 0;
- const char magic[] = "seconds-into-epoch=";
- int retcode = 1;
- long seconds_since_epoch;
-
- if (!ctl->date_opt) {
- warnx(_("No --date option specified."));
- return retcode;
- }
-
- /* Quotes in date_opt would ruin the date command we construct. */
- if (strchr(ctl->date_opt, '"') != NULL ||
- strchr(ctl->date_opt, '`') != NULL ||
- strchr(ctl->date_opt, '$') != NULL) {
- warnx(_
- ("The value of the --date option is not a valid date.\n"
- "In particular, it contains illegal character(s)."));
- return retcode;
- }
-
- xasprintf(&date_command, "date --date=\"%s\" +%s%%s",
- ctl->date_opt, magic);
- if (ctl->debug)
- printf(_("Issuing date command: %s\n"), date_command);
-
- date_child_fp = popen(date_command, "r");
- if (date_child_fp == NULL) {
- warn(_("Unable to run 'date' program in /bin/sh shell. "
- "popen() failed"));
- goto out;
- }
-
- if (getline(&date_resp, &len, date_child_fp) < 0) {
- warn(_("getline() failed"));
- goto out;
- }
- if (ctl->debug)
- printf(_("response from date command = %s\n"), date_resp);
- if (strncmp(date_resp, magic, sizeof(magic) - 1) != 0) {
- warnx(_("The date command issued by %s returned "
- "unexpected results.\n"
- "The command was:\n %s\n"
- "The response was:\n %s"),
- program_invocation_short_name, date_command, date_resp);
- goto out;
- }
-
- if (sscanf(date_resp + sizeof(magic) - 1, "%ld", &seconds_since_epoch) < 1) {
- warnx(_("The date command issued by %s returned "
- "something other than an integer where the "
- "converted time value was expected.\n"
- "The command was:\n %s\n"
- "The response was:\n %s\n"),
- program_invocation_short_name, date_command, date_resp);
- } else {
- retcode = 0;
- *time_p = seconds_since_epoch;
- if (ctl->debug)
- printf(_("date string %s equates to "
- "%ld seconds since 1969.\n"),
- ctl->date_opt, *time_p);
- }
- out:
- free(date_command);
- free(date_resp);
- if (date_child_fp)
- pclose(date_child_fp);
-
- return retcode;
-}
-
-/*
* Set the System Clock to time 'newtime'.
*
* Also set the kernel time zone value to the value indicated by the TZ
@@ -1460,6 +1366,7 @@ int main(int argc, char **argv)
struct hwclock_control ctl = { NULL };
struct timeval startup_time;
struct adjtime adjtime = { 0 };
+ struct timespec when = { 0 };
/*
* The time we started up, in seconds into the epoch, including
* fractions.
@@ -1699,11 +1606,10 @@ int main(int argc, char **argv)
#endif
if (ctl.set || ctl.predict) {
- rc = interpret_date_string(&ctl, &set_time);
- /* (time-consuming) */
- if (rc != 0) {
- warnx(_("No usable set-to time. "
- "Cannot set clock."));
+ if (parse_datetime2 (&when, ctl.date_opt, NULL, ctl.debug))
+ set_time = when.tv_sec;
+ else {
+ warnx(_("invalid date '%s'"), ctl.date_opt);
hwclock_exit(&ctl, EX_USAGE);
}
}
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [V2 2/4] build-system: add hwclock-date
2017-02-25 18:25 [V2 0/4] hwclock: remove date(1) J William Piggott
2017-02-25 18:28 ` [V2 1/4] hwclock: use parse_datetime function J William Piggott
@ 2017-02-25 18:30 ` J William Piggott
2017-02-25 18:32 ` [V2 3/4] hwclock: add hwclock-date files J William Piggott
` (2 subsequent siblings)
4 siblings, 0 replies; 11+ messages in thread
From: J William Piggott @ 2017-02-25 18:30 UTC (permalink / raw)
To: Karel Zak; +Cc: util-linux
sys-utils/Makemodule.am: add hwclock-date source file
sys-utils/hwclock.h: add parse_datetime functions
Signed-off-by: J William Piggott <elseifthen@gmx.com>
---
sys-utils/Makemodule.am | 1 +
sys-utils/hwclock.h | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/sys-utils/Makemodule.am b/sys-utils/Makemodule.am
index c565194..a453486 100644
--- a/sys-utils/Makemodule.am
+++ b/sys-utils/Makemodule.am
@@ -424,6 +424,7 @@ sbin_PROGRAMS += hwclock
dist_man_MANS += sys-utils/hwclock.8
PATHFILES += sys-utils/hwclock.8
hwclock_SOURCES = \
+ sys-utils/hwclock-date.c \
sys-utils/hwclock.c \
sys-utils/hwclock.h \
sys-utils/hwclock-cmos.c
diff --git a/sys-utils/hwclock.h b/sys-utils/hwclock.h
index b08bd2d..e6f16d3 100644
--- a/sys-utils/hwclock.h
+++ b/sys-utils/hwclock.h
@@ -82,4 +82,14 @@ extern int set_epoch_rtc(const struct hwclock_control *ctl);
extern void hwclock_exit(const struct hwclock_control *ctl, int status);
+/* date.c */
+int parse_datetime (struct timespec *, char const *, struct timespec const *);
+
+/* parse_datetime2 flag: if set, print debug/progress information to STDERR */
+#define PARSE_DATETIME_DEBUG 1
+
+/* same as above, supporting additional flags */
+int parse_datetime2 (struct timespec *, char const *, struct timespec const *,
+ unsigned int flags);
+
#endif /* HWCLOCK_CLOCK_H */
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [V2 3/4] hwclock: add hwclock-date files
2017-02-25 18:25 [V2 0/4] hwclock: remove date(1) J William Piggott
2017-02-25 18:28 ` [V2 1/4] hwclock: use parse_datetime function J William Piggott
2017-02-25 18:30 ` [V2 2/4] build-system: add hwclock-date J William Piggott
@ 2017-02-25 18:32 ` J William Piggott
2017-02-25 18:33 ` [V2 4/4] hwclock: add sys-utils/hwclock-date.c J William Piggott
2017-02-28 13:37 ` [V2 0/4] hwclock: remove date(1) Karel Zak
4 siblings, 0 replies; 11+ messages in thread
From: J William Piggott @ 2017-02-25 18:32 UTC (permalink / raw)
To: Karel Zak; +Cc: util-linux
new file: sys-utils/hwclock-date.y
new file: include/cctype.h
Like ctype.h, only hard coded to the 'C' locale.
Functions are prefixed with c_, e.g., c_isalpha()
Signed-off-by: J William Piggott <elseifthen@gmx.com>
---
include/cctype.h | 357 +++++++
sys-utils/hwclock-date.y | 2427 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 2784 insertions(+)
create mode 100644 include/cctype.h
create mode 100644 sys-utils/hwclock-date.y
This patch was too long to post.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [V2 4/4] hwclock: add sys-utils/hwclock-date.c
2017-02-25 18:25 [V2 0/4] hwclock: remove date(1) J William Piggott
` (2 preceding siblings ...)
2017-02-25 18:32 ` [V2 3/4] hwclock: add hwclock-date files J William Piggott
@ 2017-02-25 18:33 ` J William Piggott
2017-02-28 13:37 ` [V2 0/4] hwclock: remove date(1) Karel Zak
4 siblings, 0 replies; 11+ messages in thread
From: J William Piggott @ 2017-02-25 18:33 UTC (permalink / raw)
To: Karel Zak; +Cc: util-linux
Signed-off-by: J William Piggott <elseifthen@gmx.com>
---
sys-utils/hwclock-date.c | 4307 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 4307 insertions(+)
create mode 100644 sys-utils/hwclock-date.c
This patch was too long to post.
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [V2 0/4] hwclock: remove date(1)
2017-02-25 18:25 [V2 0/4] hwclock: remove date(1) J William Piggott
` (3 preceding siblings ...)
2017-02-25 18:33 ` [V2 4/4] hwclock: add sys-utils/hwclock-date.c J William Piggott
@ 2017-02-28 13:37 ` Karel Zak
2017-02-28 15:23 ` J William Piggott
4 siblings, 1 reply; 11+ messages in thread
From: Karel Zak @ 2017-02-28 13:37 UTC (permalink / raw)
To: J William Piggott; +Cc: util-linux
On Sat, Feb 25, 2017 at 01:25:37PM -0500, J William Piggott wrote:
>
> * The last commit/patch adds hwclock-date.c
Seems better than the previous attempt.
> I added this file in case testers do not have 'bison' installed. It
> may, or may not, need to be tracked depending on how it is to be
> maintained. The 'c' file probably should be included in the
> distributed source archive to avoid the bison dependency. Karel, I
> don't know if you want to create a separate clean and build target
> for hwclock-date.c, or how you want to handle this. So, if you don't
> mind, I'll leave this detail to you.
Yes, it's good idea to have .c files in the distribution tarball, but
I'd like to avoid generated files in the git repository. I'll try to
play with it (autotools) to generate .y to .c on the fly if missing.
Do you want to keep the .y file sync with gnulib and minimize number
of our local changes, or is it so stable area that we don't have to
care about it? ... because I don't like the coding style and the
debug stuff. If the overhead to maintain the file locally will be
minimal than we can probably clean up it :-)
I guess it will be possible to move it to lib/parse-datetime.c and use
it on another places in util-linux (instead of our minimalistic
parse_datetime()), right?
Karel
--
Karel Zak <kzak@redhat.com>
http://karelzak.blogspot.com
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [V2 0/4] hwclock: remove date(1)
2017-02-28 13:37 ` [V2 0/4] hwclock: remove date(1) Karel Zak
@ 2017-02-28 15:23 ` J William Piggott
2017-02-28 16:10 ` Karel Zak
2017-03-02 11:43 ` [PATCH] lib: add parse-date.y Karel Zak
0 siblings, 2 replies; 11+ messages in thread
From: J William Piggott @ 2017-02-28 15:23 UTC (permalink / raw)
To: Karel Zak; +Cc: util-linux
On 02/28/2017 08:37 AM, Karel Zak wrote:
> On Sat, Feb 25, 2017 at 01:25:37PM -0500, J William Piggott wrote:
>>
>> * The last commit/patch adds hwclock-date.c
>
> Seems better than the previous attempt.
>
>> I added this file in case testers do not have 'bison' installed. It
>> may, or may not, need to be tracked depending on how it is to be
>> maintained. The 'c' file probably should be included in the
>> distributed source archive to avoid the bison dependency. Karel, I
>> don't know if you want to create a separate clean and build target
>> for hwclock-date.c, or how you want to handle this. So, if you don't
>> mind, I'll leave this detail to you.
>
> Yes, it's good idea to have .c files in the distribution tarball, but
> I'd like to avoid generated files in the git repository. I'll try to
> play with it (autotools) to generate .y to .c on the fly if missing.
>
> Do you want to keep the .y file sync with gnulib and minimize number
> of our local changes, or is it so stable area that we don't have to
> care about it? ... because I don't like the coding style and the
> debug stuff. If the overhead to maintain the file locally will be
> minimal than we can probably clean up it :-)
Stripping the gnulib dependencies are significant enough to make syncing
to with upstream impractical, I think. I fact, I have already excluded the
latest changes because they add more gnulib dependencies.
My impression is that the original parse_datetime() is stable. It seems
like most of the changes now involve parse_datetime2() to expand
capabilities. I was using the new api only for the debug output; I
thought if changes were ever needed in the parser it might be helpful.
Since that may be unlikely, and since you don't like the debugging,
parse_datetime2() along with all of its extensions can be removed.
>
> I guess it will be possible to move it to lib/parse-datetime.c and use
> it on another places in util-linux (instead of our minimalistic
> parse_datetime()), right?
Sure, I think a name change to avoid confusion with gnulib would be
good. Maybe just parse_date.c?
I will work on these changes Karel.
>
> Karel
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [V2 0/4] hwclock: remove date(1)
2017-02-28 15:23 ` J William Piggott
@ 2017-02-28 16:10 ` Karel Zak
2017-02-28 17:01 ` Assaf Gordon
2017-03-02 11:43 ` [PATCH] lib: add parse-date.y Karel Zak
1 sibling, 1 reply; 11+ messages in thread
From: Karel Zak @ 2017-02-28 16:10 UTC (permalink / raw)
To: J William Piggott; +Cc: util-linux
On Tue, Feb 28, 2017 at 10:23:39AM -0500, J William Piggott wrote:
> My impression is that the original parse_datetime() is stable. It seems
> like most of the changes now involve parse_datetime2() to expand
> capabilities. I was using the new api only for the debug output; I
> thought if changes were ever needed in the parser it might be helpful.
> Since that may be unlikely, and since you don't like the debugging,
> parse_datetime2() along with all of its extensions can be removed.
Fortunately, this stuff is easy to test, so we can create regression
tests for all the possible formats to be sure we do not introduce any
regression.
> > I guess it will be possible to move it to lib/parse-datetime.c and use
> > it on another places in util-linux (instead of our minimalistic
> > parse_datetime()), right?
>
> Sure, I think a name change to avoid confusion with gnulib would be
> good. Maybe just parse_date.c?
Sounds, good.
> I will work on these changes Karel.
OK.
Karel
--
Karel Zak <kzak@redhat.com>
http://karelzak.blogspot.com
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [V2 0/4] hwclock: remove date(1)
2017-02-28 16:10 ` Karel Zak
@ 2017-02-28 17:01 ` Assaf Gordon
2017-03-04 21:57 ` J William Piggott
0 siblings, 1 reply; 11+ messages in thread
From: Assaf Gordon @ 2017-02-28 17:01 UTC (permalink / raw)
To: Karel Zak; +Cc: J William Piggott, util-linux
Hello,
On Tue, Feb 28, 2017 at 05:10:00PM +0100, Karel Zak wrote:
>On Tue, Feb 28, 2017 at 10:23:39AM -0500, J William Piggott wrote:
>> My impression is that the original parse_datetime() is stable. It seems
>> like most of the changes now involve parse_datetime2() to expand
>> capabilities.
More specifically: parse_datetime was made it re-entrant (removed
global timezone variables) and was added debugging code.
I don't think the parser itself has changed in a long while.
>Fortunately, this stuff is easy to test, so we can create regression
>tests for all the possible formats to be sure we do not introduce any
>regression.
A description of all types of accepted inputs for gnu date
(and techincally: gnulib's parse_datetime) is here:
https://www.gnu.org/software/coreutils/manual/html_node/Date-input-formats.html
>> > I guess it will be possible to move it to lib/parse-datetime.c and use
>> > it on another places in util-linux (instead of our minimalistic
>> > parse_datetime()), right?
>>
>> Sure, I think a name change to avoid confusion with gnulib would be
>> good. Maybe just parse_date.c?
If you copy the gnulib's parser and adjust it,
I might suggest doing away first with relative times,
then perhaps with timezones.
There are some confusing combinations, especially with
relative times (e.g. "20170228 + 2 days" vs "20:45:45 + 2 days", the
latter parsed as "8:45:45pm+02:00TZ + 1 day"),
and then with all sorts of things that are taken as timezones (like
"2017A" which is parsed as '8:17pm in timezone -01:00'.
If you don't want to meddle with the parser (which is understandable),
as a fallback you might want to add a minor piece of code
that ensures any timezone/relative parts were not encountered during the
parsing.
To do that, I'd add a small check at the end of 'parse_datetime2',
and look at the fields of 'struct parse_control':
http://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/parse-datetime.y#n172
something like:
if (pc.dsts_seen==0 && pc.rels_seen==0 && pc.zones_seen==0 etc.)
Then the parser didn't encounter these parts.
I'm happy to help with testing if needed.
regards,
- assaf
P.S.
In fact, I wonder if it'll be easier to add such a flag to gnulib's
parse_datetime2 , something like 'PARSE_DATETIME_NO_RELATIVE'
and 'PARSE_DATETIME_NO_ZONE' which will reject such input.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH] lib: add parse-date.y
2017-02-28 15:23 ` J William Piggott
2017-02-28 16:10 ` Karel Zak
@ 2017-03-02 11:43 ` Karel Zak
1 sibling, 0 replies; 11+ messages in thread
From: Karel Zak @ 2017-03-02 11:43 UTC (permalink / raw)
To: J William Piggott; +Cc: util-linux, Karel Zak
* move sys-utils/hwclock-date.y to lib/parse-date.y
* remove generated .c from git tree
* add necessary autotools stuff to generate .c on the fly
(autotools are smart enough to add generated file to tarball)
* check for bison version by ./autogen.sh
* add non-wanted junk to .gitignore
Signed-off-by: Karel Zak <kzak@redhat.com>
---
.gitignore | 1 +
autogen.sh | 20 +
configure.ac | 2 +-
include/Makemodule.am | 1 +
include/parse-date.h | 14 +
lib/.gitignore | 1 +
lib/Makemodule.am | 1 +
sys-utils/hwclock-date.y => lib/parse-date.y | 7 +-
sys-utils/Makemodule.am | 1 -
sys-utils/hwclock-date.c | 4307 --------------------------
sys-utils/hwclock.c | 1 +
sys-utils/hwclock.h | 10 -
12 files changed, 45 insertions(+), 4321 deletions(-)
create mode 100644 include/parse-date.h
create mode 100644 lib/.gitignore
rename sys-utils/hwclock-date.y => lib/parse-date.y (99%)
delete mode 100644 sys-utils/hwclock-date.c
diff --git a/.gitignore b/.gitignore
index 8630fea..6c87c6b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,6 +55,7 @@ test-suite.log
tests/run.sh.log
tests/run.sh.trs
update.log
+ylwrap
#
# binaries
diff --git a/autogen.sh b/autogen.sh
index 116885b..04b6cb4 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -67,6 +67,25 @@ test -f sys-utils/mount.c || {
DIE=1
}
+if ! (bison --version) < /dev/null > /dev/null 2>&1; then
+ echo
+ echo "You must have bison installed to build the util-linux."
+ echo
+ DIE=1
+else
+ lexver=$(bison --version | awk '/bison \(GNU Bison\)/ { print $4 }')
+ case "$lexver" in
+ [2-9].*)
+ ;;
+ *)
+ echo
+ echo "You must have bison version >= 2.x, but you have $lexver."
+ echo
+ DIE=1
+ ;;
+ esac
+fi
+
LIBTOOLIZE=libtoolize
case `uname` in Darwin*) LIBTOOLIZE=glibtoolize ;; esac
if ! ($LIBTOOLIZE --version) < /dev/null > /dev/null 2>&1; then
@@ -104,6 +123,7 @@ echo " autoconf: $(autoconf --version | head -1)"
echo " autoheader: $(autoheader --version | head -1)"
echo " automake: $(automake --version | head -1)"
echo " libtoolize: $($LIBTOOLIZE --version | head -1)"
+echo " bison: $(bison --version | head -1)"
rm -rf autom4te.cache
diff --git a/configure.ac b/configure.ac
index 8933afa..17c3b23 100644
--- a/configure.ac
+++ b/configure.ac
@@ -99,6 +99,7 @@ AC_SUBST([usrlib_execdir])
AM_PROG_CC_C_O
AC_PROG_MKDIR_P
AC_PROG_CC_STDC
+AC_PROG_YACC
AC_CANONICAL_HOST
AC_C_CONST
AC_C_VOLATILE
@@ -153,7 +154,6 @@ PKG_PROG_PKG_CONFIG
GTK_DOC_CHECK([1.10])
AC_PATH_PROG([XSLTPROC], [xsltproc])
-
linux_os=no
bsd_os=no
AS_CASE([${host_os}],
diff --git a/include/Makemodule.am b/include/Makemodule.am
index d43c597..f138c9c 100644
--- a/include/Makemodule.am
+++ b/include/Makemodule.am
@@ -33,6 +33,7 @@ dist_noinst_HEADERS += \
include/optutils.h \
include/pager.h \
include/pamfail.h \
+ include/parse-date.h \
include/path.h \
include/pathnames.h \
include/plymouth-ctrl.h \
diff --git a/include/parse-date.h b/include/parse-date.h
new file mode 100644
index 0000000..cb884b2
--- /dev/null
+++ b/include/parse-date.h
@@ -0,0 +1,14 @@
+#ifndef UTIL_LINUX_PARSE_DATE_H
+#define UTIL_LINUX_PARSE_DATE_H
+
+int parse_datetime (struct timespec *, char const *, struct timespec const *);
+
+/* parse_datetime2 flag: if set, print debug/progress information to STDERR */
+#define PARSE_DATETIME_DEBUG 1
+
+/* same as above, supporting additional flags */
+int parse_datetime2 (struct timespec *, char const *, struct timespec const *,
+ unsigned int flags);
+
+#endif /* UTIL_LINUX_PARSE_DATE_H */
+
diff --git a/lib/.gitignore b/lib/.gitignore
new file mode 100644
index 0000000..070c244
--- /dev/null
+++ b/lib/.gitignore
@@ -0,0 +1 @@
+parse-date.c
diff --git a/lib/Makemodule.am b/lib/Makemodule.am
index d20a9ac..358b85a 100644
--- a/lib/Makemodule.am
+++ b/lib/Makemodule.am
@@ -16,6 +16,7 @@ libcommon_la_SOURCES = \
lib/mbsedit.c\
lib/md5.c \
lib/pager.c \
+ lib/parse-date.y \
lib/path.c \
lib/randutils.c \
lib/setproctitle.c \
diff --git a/sys-utils/hwclock-date.y b/lib/parse-date.y
similarity index 99%
rename from sys-utils/hwclock-date.y
rename to lib/parse-date.y
index 519600d..7bd678c 100644
--- a/sys-utils/hwclock-date.y
+++ b/lib/parse-date.y
@@ -33,8 +33,11 @@
/* FIXME: Check for arithmetic overflow in all cases, not just
some of them. */
-#include <config.h>
-#include "hwclock.h"
+#include <sys/time.h>
+#include <time.h>
+
+#include "c.h"
+#include "parse-date.h"
/* There's no need to extend the stack, so there's no need to involve
alloca. */
diff --git a/sys-utils/Makemodule.am b/sys-utils/Makemodule.am
index a453486..c565194 100644
--- a/sys-utils/Makemodule.am
+++ b/sys-utils/Makemodule.am
@@ -424,7 +424,6 @@ sbin_PROGRAMS += hwclock
dist_man_MANS += sys-utils/hwclock.8
PATHFILES += sys-utils/hwclock.8
hwclock_SOURCES = \
- sys-utils/hwclock-date.c \
sys-utils/hwclock.c \
sys-utils/hwclock.h \
sys-utils/hwclock-cmos.c
diff --git a/sys-utils/hwclock-date.c b/sys-utils/hwclock-date.c
deleted file mode 100644
index c62f9e5..0000000
--- a/sys-utils/hwclock-date.c
+++ /dev/null
@@ -1,4307 +0,0 @@
-/* A Bison parser, made by GNU Bison 2.7. */
-
-/* Bison implementation for Yacc-like parsers in C
-
- Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-/* As a special exception, you may create a larger work that contains
- part or all of the Bison parser skeleton and distribute that work
- under terms of your choice, so long as that work isn't itself a
- parser generator using the skeleton or a modified version thereof
- as a parser skeleton. Alternatively, if you modify or redistribute
- the parser skeleton itself, you may (at your option) remove this
- special exception, which will cause the skeleton and the resulting
- Bison output files to be licensed under the GNU General Public
- License without this special exception.
-
- This special exception was added by the Free Software Foundation in
- version 2.2 of Bison. */
-
-/* C LALR(1) parser skeleton written by Richard Stallman, by
- simplifying the original so-called "semantic" parser. */
-
-/* All symbols defined below should begin with yy or YY, to avoid
- infringing on user name space. This should be done even for local
- variables, as they might otherwise be expanded by user macros.
- There are some unavoidable exceptions within include files to
- define necessary library symbols; they are noted "INFRINGES ON
- USER NAME SPACE" below. */
-
-/* Identify Bison output. */
-#define YYBISON 1
-
-/* Bison version. */
-#define YYBISON_VERSION "2.7"
-
-/* Skeleton name. */
-#define YYSKELETON_NAME "yacc.c"
-
-/* Pure parsers. */
-#define YYPURE 1
-
-/* Push parsers. */
-#define YYPUSH 0
-
-/* Pull parsers. */
-#define YYPULL 1
-
-
-
-
-/* Copy the first part of user declarations. */
-/* Line 371 of yacc.c */
-#line 1 "hwclock-date.y"
-
-/* Parse a string into an internal timestamp.
- This file is based on gnulib parse-datetime.y-dd7a871 with
- the other gnulib dependancies removed for use in util-linux by
- J William Piggott 2017
-
- Copyright (C) 1999-2000, 2002-2017 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-/* Originally written by Steven M. Bellovin <smb@research.att.com> while
- at the University of North Carolina at Chapel Hill. Later tweaked by
- a couple of people on Usenet. Completely overhauled by Rich $alz
- <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.
-
- Modified by Paul Eggert <eggert@twinsun.com> in August 1999 to do
- the right thing about local DST. Also modified by Paul Eggert
- <eggert@cs.ucla.edu> in February 2004 to support
- nanosecond-resolution timestamps, and in October 2004 to support
- TZ strings in dates. */
-
-/* FIXME: Check for arithmetic overflow in all cases, not just
- some of them. */
-
-#include <config.h>
-#include "hwclock.h"
-
-/* There's no need to extend the stack, so there's no need to involve
- alloca. */
-#define YYSTACK_USE_ALLOCA 0
-
-/* Tell Bison how much stack space is needed. 20 should be plenty for
- this grammar, which is not right recursive. Beware setting it too
- high, since that might cause problems on machines whose
- implementations have lame stack-overflow checking. */
-#define YYMAXDEPTH 20
-#define YYINITDEPTH YYMAXDEPTH
-
-/* Since the code of parse-datetime.y is not included in the Emacs executable
- itself, there is no need to #define static in this file. Even if
- the code were included in the Emacs executable, it probably
- wouldn't do any harm to #undef it here; this will only cause
- problems if we try to write to a static variable, which I don't
- think this code needs to do. */
-#ifdef emacs
-# undef static
-#endif
-
-#include <inttypes.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-#include <stdarg.h>
-#include "cctype.h"
-#include "nls.h"
-#include "xalloc.h"
-#include <sys/time.h>
-
-/* Bison's skeleton tests _STDLIB_H, while some stdlib.h headers
- use _STDLIB_H_ as witness. Map the latter to the one bison uses. */
-/* FIXME: this is temporary. Remove when we have a mechanism to ensure
- that the version we're using is fixed, too. */
-#ifdef _STDLIB_H_
-# undef _STDLIB_H
-# define _STDLIB_H 1
-#endif
-
-/* ISDIGIT differs from isdigit, as follows:
- - Its arg may be any int or unsigned int; it need not be an unsigned char
- or EOF.
- - It's typically faster.
- POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
- isdigit unless it's important to use the locale's definition
- of "digit" even when the host does not conform to POSIX. */
-#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
-
-/* Shift A right by B bits portably, by dividing A by 2**B and
- truncating towards minus infinity. A and B should be free of side
- effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
- INT_BITS is the number of useful bits in an int. GNU code can
- assume that INT_BITS is at least 32.
-
- ISO C99 says that A >> B is implementation-defined if A < 0. Some
- implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
- right in the usual way when A < 0, so SHR falls back on division if
- ordinary A >> B doesn't seem to be the usual signed shift. */
-#define SHR(a, b) \
- (-1 >> 1 == -1 \
- ? (a) >> (b) \
- : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
-
-#define EPOCH_YEAR 1970
-#define TM_YEAR_BASE 1900
-
-#define HOUR(x) ((x) * 60)
-
-#define STREQ(a, b) (strcmp (a, b) == 0)
-
-/* Convert a possibly-signed character to an unsigned character. This is
- a bit safer than casting to unsigned char, since it catches some type
- errors that the cast doesn't. */
-static unsigned char to_uchar (char ch) { return ch; }
-
-static void
-dbg_printf (const char *msg,...)
-{
- va_list args;
- /* TODO: use gnulib's 'program_name' instead? */
- fputs ("date: ", stderr);
-
- va_start (args, msg);
- vfprintf (stderr, msg, args);
- va_end (args);
-}
-
-/* FIXME: It also assumes that signed integer overflow silently wraps around,
- but this is not true any more with recent versions of GCC 4. */
-
-/* An integer value, and the number of digits in its textual
- representation. */
-typedef struct
-{
- int negative;
- long int value;
- size_t digits;
-} textint;
-
-/* An entry in the lexical lookup table. */
-typedef struct
-{
- char const *name;
- int type;
- int value;
-} table;
-
-/* Meridian: am, pm, or 24-hour style. */
-enum { MERam, MERpm, MER24 };
-
-enum { BILLION = 1000000000, LOG10_BILLION = 9 };
-
-/* Relative times. */
-typedef struct
-{
- /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
- long int year;
- long int month;
- long int day;
- long int hour;
- long int minutes;
- time_t seconds;
- long int ns;
-} relative_time;
-
-#if HAVE_COMPOUND_LITERALS
-# define RELATIVE_TIME_0 ((relative_time) { 0, 0, 0, 0, 0, 0, 0 })
-#else
-static relative_time const RELATIVE_TIME_0;
-#endif
-
-/* Information passed to and from the parser. */
-typedef struct
-{
- /* The input string remaining to be parsed. */
- const char *input;
-
- /* N, if this is the Nth Tuesday. */
- long int day_ordinal;
-
- /* Day of week; Sunday is 0. */
- int day_number;
-
- /* tm_isdst flag for the local zone. */
- int local_isdst;
-
- /* Time zone, in minutes east of UTC. */
- long int time_zone;
-
- /* Style used for time. */
- int meridian;
-
- /* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds. */
- textint year;
- long int month;
- long int day;
- long int hour;
- long int minutes;
- struct timespec seconds; /* includes nanoseconds */
-
- /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
- relative_time rel;
-
- /* Presence or counts of nonterminals of various flavors parsed so far. */
- int timespec_seen;
- int rels_seen;
- size_t dates_seen;
- size_t days_seen;
- size_t local_zones_seen;
- size_t dsts_seen;
- size_t times_seen;
- size_t zones_seen;
- size_t year_seen;
-
- /* if 1, print debugging output to stderr */
- int parse_datetime_debug;
-
- /* which of the 'seen' parts has been printed when debugging */
- size_t debug_dates_seen;
- size_t debug_days_seen;
- size_t debug_local_zones_seen;
- size_t debug_dsts_seen;
- size_t debug_times_seen;
- size_t debug_zones_seen;
- size_t debug_year_seen;
-
- /* 1 if the user specified explicit ordinal day value, */
- int debug_ordinal_day_seen;
-
- /* the default input timezone, set by TZ value */
- long int debug_default_input_timezone;
-
- /* Table of local time zone abbreviations, terminated by a null entry. */
- table local_time_zone_table[3];
-} parser_control;
-
-union YYSTYPE;
-static int yylex (union YYSTYPE *, parser_control *);
-static int yyerror (parser_control const *, char const *);
-static long int time_zone_hhmm (parser_control *, textint, long int);
-
-/* Extract into *PC any date and time info from a string of digits
- of the form e.g., YYYYMMDD, YYMMDD, HHMM, HH (and sometimes YYY,
- YYYY, ...). */
-static void
-digits_to_date_time (parser_control *pc, textint text_int)
-{
- if (pc->dates_seen && ! pc->year.digits
- && ! pc->rels_seen && (pc->times_seen || 2 < text_int.digits))
- {
- pc->year_seen++;
- pc->year = text_int;
- }
- else
- {
- if (4 < text_int.digits)
- {
- pc->dates_seen++;
- pc->day = text_int.value % 100;
- pc->month = (text_int.value / 100) % 100;
- pc->year.value = text_int.value / 10000;
- pc->year.digits = text_int.digits - 4;
- }
- else
- {
- pc->times_seen++;
- if (text_int.digits <= 2)
- {
- pc->hour = text_int.value;
- pc->minutes = 0;
- }
- else
- {
- pc->hour = text_int.value / 100;
- pc->minutes = text_int.value % 100;
- }
- pc->seconds.tv_sec = 0;
- pc->seconds.tv_nsec = 0;
- pc->meridian = MER24;
- }
- }
-}
-
-/* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1). */
-static void
-apply_relative_time (parser_control *pc, relative_time rel, int factor)
-{
- pc->rel.ns += factor * rel.ns;
- pc->rel.seconds += factor * rel.seconds;
- pc->rel.minutes += factor * rel.minutes;
- pc->rel.hour += factor * rel.hour;
- pc->rel.day += factor * rel.day;
- pc->rel.month += factor * rel.month;
- pc->rel.year += factor * rel.year;
- pc->rels_seen = 1;
-}
-
-/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments. */
-static void
-set_hhmmss (parser_control *pc, long int hour, long int minutes,
- time_t sec, long int nsec)
-{
- pc->hour = hour;
- pc->minutes = minutes;
- pc->seconds.tv_sec = sec;
- pc->seconds.tv_nsec = nsec;
-}
-
-/* returns a textual representation of the day ordinal/number values
- in the parser_control struct (e.g. 'last wed', 'this tues', 'thu') */
-static const char*
-str_days (parser_control *pc, char* /*output*/ buffer, size_t n)
-{
- /* TODO: use the relative_time_table[] for reverse lookup */
- static const char* ordinal_values[] = {
- "last",
- "this",
- "next/first",
- "(SECOND)", /* SECOND is commented out in relative_time_table[] */
- "third",
- "fourth",
- "fifth",
- "sixth",
- "seventh",
- "eight",
- "ninth",
- "tenth",
- "eleventh",
- "twelfth"};
-
- static const char* days_values[] = {
- "Sun",
- "Mon",
- "Tue",
- "Wed",
- "Thu",
- "Fri",
- "Sat"
- };
-
- /* don't add an ordinal prefix if the user didn't specify it
- (e.g., "this wed" vs "wed") */
- if (pc->debug_ordinal_day_seen)
- {
- /* use word description of possible (e.g. -1 = last, 3 = third) */
- if (pc->day_ordinal>=-1 && pc->day_ordinal <=12)
- {
- strncpy (buffer, ordinal_values[ pc->day_ordinal+1 ], n);
- buffer[n-1]='\0';
- }
- else
- {
- snprintf (buffer,n,"%ld",pc->day_ordinal);
- }
- }
- else
- {
- buffer[0] = '\0';
- }
-
- /* Add the day name */
- if (pc->day_number>=0 && pc->day_number<=6)
- {
- size_t l = strlen (buffer);
- if (l>0)
- {
- strncat (buffer," ",n-l);
- ++l;
- }
- strncat (buffer,days_values[pc->day_number],n-l);
- }
- else
- {
- /* invalid day_number value - should never happen */
- }
- return buffer;
-}
-
-/* debugging: print the current time in the parser_control structure.
- The parser will increment "*_seen" members for those which were parsed.
- This function will print only newly seen parts. */
-static void
-debug_print_current_time (const char* item, parser_control *pc)
-{
- char tmp[100] = {0};
- int space = 0; /* if 1, add space delimiter */
-
- if (!pc->parse_datetime_debug)
- return;
-
- /* no newline, more items printed below */
- dbg_printf (_("parsed %s part: "), item);
-
- if (pc->dates_seen != pc->debug_dates_seen)
- {
- /*TODO: use pc->year.negative? */
- fprintf (stderr,"(Y-M-D) %04ld-%02ld-%02ld",
- pc->year.value, pc->month, pc->day);
- pc->debug_dates_seen = pc->dates_seen;
- space = 1;
- }
-
- if (pc->year_seen != pc->debug_year_seen)
- {
- if (space)
- fputc (' ',stderr);
- fprintf (stderr, _("year: %04ld"), pc->year.value);
-
- pc->debug_year_seen = pc->year_seen;
- space = 1;
- }
-
- if (pc->times_seen != pc->debug_times_seen)
- {
- if (space)
- fputc (' ',stderr);
- fprintf (stderr,"%02ld:%02ld:%02ld",
- pc->hour, pc->minutes, pc->seconds.tv_sec);
- if (pc->seconds.tv_nsec!=0)
- fprintf (stderr,"%09ld", pc->seconds.tv_nsec);
- if (pc->meridian==MERpm)
- fputs ("pm",stderr);
-
- pc->debug_times_seen = pc->times_seen;
- space = 1;
- }
-
- if (pc->days_seen != pc->debug_days_seen)
- {
- if (space)
- fputc (' ',stderr);
- fprintf (stderr,_("%s (day ordinal=%ld number=%d)"),
- str_days (pc,tmp,sizeof (tmp)),
- pc->day_ordinal, pc->day_number);
- pc->debug_days_seen = pc->days_seen ;
- space = 1;
- }
-
- /* local zone strings only change the DST settings,
- not the timezone value. If seen, inform about the DST.
- its value (0 or 1) will be printed in the next 'if' block */
- if (pc->local_zones_seen != pc->debug_local_zones_seen)
- {
- if (space)
- fputc (' ',stderr);
- fputs ( (pc->dsts_seen == pc->debug_dsts_seen)?
- _("DST unchanged"):_("DST changed:"),
- stderr);
- pc->debug_local_zones_seen = pc->local_zones_seen;
- space = 1;
- }
-
- if (pc->dsts_seen != pc->debug_dsts_seen)
- {
- if (space)
- fputc (' ',stderr);
- fprintf (stderr,_("is-dst=%d"), pc->local_isdst);
- pc->dsts_seen = pc->debug_dsts_seen;
- space = 1;
- }
-
- /* TODO: fix incorrect display of EST=2:08h? */
- if (pc->zones_seen != pc->debug_zones_seen)
- {
- if (space)
- fputc (' ',stderr);
- fprintf (stderr,_("TZ=%+03d:%02d"), (int)(pc->time_zone/60),
- abs ((int)pc->time_zone%60));
- pc->debug_zones_seen = pc->zones_seen;
- space = 1;
- }
-
- if (pc->timespec_seen)
- {
- if (space)
- fputc (' ',stderr);
- fprintf (stderr,_("number of seconds: %ld"), pc->seconds.tv_sec);
- }
-
- fputc ('\n', stderr);
-}
-
-/* debugging: print the current relative values. */
-static void
-debug_print_relative_time (const char* item, const parser_control *pc)
-{
- int space = 0; /* if 1, add space delimiter */
-
- if (!pc->parse_datetime_debug)
- return;
-
- /* no newline, more items printed below */
- dbg_printf (_("parsed %s part: "), item);
-
- if (pc->rel.year==0 && pc->rel.month==0 && pc->rel.day==0
- && pc->rel.hour==0 && pc->rel.minutes==00 && pc->rel.seconds == 0
- && pc->rel.ns==0)
- {
- /* Special case: relative time of this/today/now */
- fputs (_("today/this/now\n"),stderr);
- return ;
- }
-
-#define PRINT_REL_PART(x,name) \
- do { \
- if ( (pc->rel.x) != 0 ) \
- { \
- if (space) \
- fputc (' ',stderr); \
- fprintf (stderr,"%+ld %s", pc->rel.x, name); \
- space = 1; \
- } \
- } while (0)
-
- PRINT_REL_PART (year,"year(s)");
- PRINT_REL_PART (month,"month(s)");
- PRINT_REL_PART (day,"day(s)");
- PRINT_REL_PART (hour,"hour(s)");
- PRINT_REL_PART (minutes,"minutes");
- PRINT_REL_PART (seconds,"seconds");
- PRINT_REL_PART (ns,"nanoseconds");
-
- fputc ('\n',stderr);
-}
-
-
-
-
-/* Line 371 of yacc.c */
-#line 599 "hwclock-date.c"
-
-# ifndef YY_NULL
-# if defined __cplusplus && 201103L <= __cplusplus
-# define YY_NULL nullptr
-# else
-# define YY_NULL 0
-# endif
-# endif
-
-/* Enabling verbose error messages. */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE 0
-#endif
-
-
-/* Enabling traces. */
-#ifndef YYDEBUG
-# define YYDEBUG 0
-#endif
-#if YYDEBUG
-extern int yydebug;
-#endif
-
-/* Tokens. */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
- /* Put the tokens into the symbol table, so that GDB and other debuggers
- know about them. */
- enum yytokentype {
- tAGO = 258,
- tDST = 259,
- tYEAR_UNIT = 260,
- tMONTH_UNIT = 261,
- tHOUR_UNIT = 262,
- tMINUTE_UNIT = 263,
- tSEC_UNIT = 264,
- tDAY_UNIT = 265,
- tDAY_SHIFT = 266,
- tDAY = 267,
- tDAYZONE = 268,
- tLOCAL_ZONE = 269,
- tMERIDIAN = 270,
- tMONTH = 271,
- tORDINAL = 272,
- tZONE = 273,
- tSNUMBER = 274,
- tUNUMBER = 275,
- tSDECIMAL_NUMBER = 276,
- tUDECIMAL_NUMBER = 277
- };
-#endif
-
-
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-typedef union YYSTYPE
-{
-/* Line 387 of yacc.c */
-#line 542 "hwclock-date.y"
-
- long int intval;
- textint textintval;
- struct timespec timespec;
- relative_time rel;
-
-
-/* Line 387 of yacc.c */
-#line 669 "hwclock-date.c"
-} YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1
-# define yystype YYSTYPE /* obsolescent; will be withdrawn */
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-
-#ifdef YYPARSE_PARAM
-#if defined __STDC__ || defined __cplusplus
-int yyparse (void *YYPARSE_PARAM);
-#else
-int yyparse ();
-#endif
-#else /* ! YYPARSE_PARAM */
-#if defined __STDC__ || defined __cplusplus
-int yyparse (parser_control *pc);
-#else
-int yyparse ();
-#endif
-#endif /* ! YYPARSE_PARAM */
-
-
-
-/* Copy the second part of user declarations. */
-
-/* Line 390 of yacc.c */
-#line 696 "hwclock-date.c"
-
-#ifdef short
-# undef short
-#endif
-
-#ifdef YYTYPE_UINT8
-typedef YYTYPE_UINT8 yytype_uint8;
-#else
-typedef unsigned char yytype_uint8;
-#endif
-
-#ifdef YYTYPE_INT8
-typedef YYTYPE_INT8 yytype_int8;
-#elif (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-typedef signed char yytype_int8;
-#else
-typedef short int yytype_int8;
-#endif
-
-#ifdef YYTYPE_UINT16
-typedef YYTYPE_UINT16 yytype_uint16;
-#else
-typedef unsigned short int yytype_uint16;
-#endif
-
-#ifdef YYTYPE_INT16
-typedef YYTYPE_INT16 yytype_int16;
-#else
-typedef short int yytype_int16;
-#endif
-
-#ifndef YYSIZE_T
-# ifdef __SIZE_TYPE__
-# define YYSIZE_T __SIZE_TYPE__
-# elif defined size_t
-# define YYSIZE_T size_t
-# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
-# define YYSIZE_T size_t
-# else
-# define YYSIZE_T unsigned int
-# endif
-#endif
-
-#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
-
-#ifndef YY_
-# if defined YYENABLE_NLS && YYENABLE_NLS
-# if ENABLE_NLS
-# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
-# define YY_(Msgid) dgettext ("bison-runtime", Msgid)
-# endif
-# endif
-# ifndef YY_
-# define YY_(Msgid) Msgid
-# endif
-#endif
-
-/* Suppress unused-variable warnings by "using" E. */
-#if ! defined lint || defined __GNUC__
-# define YYUSE(E) ((void) (E))
-#else
-# define YYUSE(E) /* empty */
-#endif
-
-/* Identity function, used to suppress warnings about constant conditions. */
-#ifndef lint
-# define YYID(N) (N)
-#else
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static int
-YYID (int yyi)
-#else
-static int
-YYID (yyi)
- int yyi;
-#endif
-{
- return yyi;
-}
-#endif
-
-#if ! defined yyoverflow || YYERROR_VERBOSE
-
-/* The parser invokes alloca or malloc; define the necessary symbols. */
-
-# ifdef YYSTACK_USE_ALLOCA
-# if YYSTACK_USE_ALLOCA
-# ifdef __GNUC__
-# define YYSTACK_ALLOC __builtin_alloca
-# elif defined __BUILTIN_VA_ARG_INCR
-# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
-# elif defined _AIX
-# define YYSTACK_ALLOC __alloca
-# elif defined _MSC_VER
-# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
-# define alloca _alloca
-# else
-# define YYSTACK_ALLOC alloca
-# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
- /* Use EXIT_SUCCESS as a witness for stdlib.h. */
-# ifndef EXIT_SUCCESS
-# define EXIT_SUCCESS 0
-# endif
-# endif
-# endif
-# endif
-# endif
-
-# ifdef YYSTACK_ALLOC
- /* Pacify GCC's `empty if-body' warning. */
-# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
-# ifndef YYSTACK_ALLOC_MAXIMUM
- /* The OS might guarantee only one guard page at the bottom of the stack,
- and a page size can be as small as 4096 bytes. So we cannot safely
- invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
- to allow for a few compiler-allocated temporary stack slots. */
-# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
-# endif
-# else
-# define YYSTACK_ALLOC YYMALLOC
-# define YYSTACK_FREE YYFREE
-# ifndef YYSTACK_ALLOC_MAXIMUM
-# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
-# endif
-# if (defined __cplusplus && ! defined EXIT_SUCCESS \
- && ! ((defined YYMALLOC || defined malloc) \
- && (defined YYFREE || defined free)))
-# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-# ifndef EXIT_SUCCESS
-# define EXIT_SUCCESS 0
-# endif
-# endif
-# ifndef YYMALLOC
-# define YYMALLOC malloc
-# if ! defined malloc && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
-# endif
-# endif
-# ifndef YYFREE
-# define YYFREE free
-# if ! defined free && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-void free (void *); /* INFRINGES ON USER NAME SPACE */
-# endif
-# endif
-# endif
-#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
-
-
-#if (! defined yyoverflow \
- && (! defined __cplusplus \
- || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
-
-/* A type that is properly aligned for any stack member. */
-union yyalloc
-{
- yytype_int16 yyss_alloc;
- YYSTYPE yyvs_alloc;
-};
-
-/* The size of the maximum gap between one aligned stack and the next. */
-# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
-
-/* The size of an array large to enough to hold all stacks, each with
- N elements. */
-# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
- + YYSTACK_GAP_MAXIMUM)
-
-# define YYCOPY_NEEDED 1
-
-/* Relocate STACK from its old location to the new one. The
- local variables YYSIZE and YYSTACKSIZE give the old and new number of
- elements in the stack, and YYPTR gives the new location of the
- stack. Advance YYPTR to a properly aligned location for the next
- stack. */
-# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
- do \
- { \
- YYSIZE_T yynewbytes; \
- YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
- Stack = &yyptr->Stack_alloc; \
- yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
- yyptr += yynewbytes / sizeof (*yyptr); \
- } \
- while (YYID (0))
-
-#endif
-
-#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
-/* Copy COUNT objects from SRC to DST. The source and destination do
- not overlap. */
-# ifndef YYCOPY
-# if defined __GNUC__ && 1 < __GNUC__
-# define YYCOPY(Dst, Src, Count) \
- __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
-# else
-# define YYCOPY(Dst, Src, Count) \
- do \
- { \
- YYSIZE_T yyi; \
- for (yyi = 0; yyi < (Count); yyi++) \
- (Dst)[yyi] = (Src)[yyi]; \
- } \
- while (YYID (0))
-# endif
-# endif
-#endif /* !YYCOPY_NEEDED */
-
-/* YYFINAL -- State number of the termination state. */
-#define YYFINAL 12
-/* YYLAST -- Last index in YYTABLE. */
-#define YYLAST 112
-
-/* YYNTOKENS -- Number of terminals. */
-#define YYNTOKENS 28
-/* YYNNTS -- Number of nonterminals. */
-#define YYNNTS 26
-/* YYNRULES -- Number of rules. */
-#define YYNRULES 91
-/* YYNRULES -- Number of states. */
-#define YYNSTATES 114
-
-/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
-#define YYUNDEFTOK 2
-#define YYMAXUTOK 277
-
-#define YYTRANSLATE(YYX) \
- ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
-
-/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
-static const yytype_uint8 yytranslate[] =
-{
- 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 26, 2, 2, 27, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 25, 2,
- 2, 2, 2, 2, 23, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 24, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
- 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
- 15, 16, 17, 18, 19, 20, 21, 22
-};
-
-#if YYDEBUG
-/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
- YYRHS. */
-static const yytype_uint8 yyprhs[] =
-{
- 0, 0, 3, 5, 7, 10, 11, 14, 16, 18,
- 20, 22, 24, 26, 28, 30, 32, 34, 38, 41,
- 46, 53, 55, 58, 63, 70, 71, 73, 76, 78,
- 81, 83, 85, 88, 91, 95, 97, 100, 102, 105,
- 108, 111, 115, 121, 125, 129, 132, 137, 140, 144,
- 146, 150, 153, 155, 157, 160, 163, 165, 168, 171,
- 173, 176, 179, 181, 184, 187, 189, 192, 195, 197,
- 200, 203, 206, 209, 211, 213, 216, 219, 222, 225,
- 228, 231, 233, 235, 237, 239, 241, 243, 245, 247,
- 250, 251
-};
-
-/* YYRHS -- A `-1'-separated list of the rules' RHS. */
-static const yytype_int8 yyrhs[] =
-{
- 29, 0, -1, 30, -1, 31, -1, 23, 48, -1,
- -1, 31, 32, -1, 33, -1, 35, -1, 39, -1,
- 40, -1, 42, -1, 41, -1, 44, -1, 51, -1,
- 52, -1, 34, -1, 43, 24, 36, -1, 20, 15,
- -1, 20, 25, 20, 15, -1, 20, 25, 20, 25,
- 50, 15, -1, 36, -1, 20, 38, -1, 20, 25,
- 20, 37, -1, 20, 25, 20, 25, 50, 37, -1,
- -1, 38, -1, 19, 53, -1, 14, -1, 14, 4,
- -1, 18, -1, 24, -1, 18, 46, -1, 24, 46,
- -1, 18, 19, 53, -1, 13, -1, 18, 4, -1,
- 12, -1, 12, 26, -1, 17, 12, -1, 20, 12,
- -1, 20, 27, 20, -1, 20, 27, 20, 27, 20,
- -1, 20, 16, 19, -1, 16, 19, 19, -1, 16,
- 20, -1, 16, 20, 26, 20, -1, 20, 16, -1,
- 20, 16, 20, -1, 43, -1, 20, 19, 19, -1,
- 45, 3, -1, 45, -1, 47, -1, 17, 5, -1,
- 20, 5, -1, 5, -1, 17, 6, -1, 20, 6,
- -1, 6, -1, 17, 10, -1, 20, 10, -1, 10,
- -1, 17, 7, -1, 20, 7, -1, 7, -1, 17,
- 8, -1, 20, 8, -1, 8, -1, 17, 9, -1,
- 20, 9, -1, 21, 9, -1, 22, 9, -1, 9,
- -1, 46, -1, 19, 5, -1, 19, 6, -1, 19,
- 10, -1, 19, 7, -1, 19, 8, -1, 19, 9,
- -1, 11, -1, 49, -1, 50, -1, 21, -1, 19,
- -1, 22, -1, 20, -1, 20, -1, 20, 46, -1,
- -1, 25, 20, -1
-};
-
-/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
-static const yytype_uint16 yyrline[] =
-{
- 0, 569, 569, 570, 574, 582, 584, 588, 593, 598,
- 603, 608, 613, 618, 622, 626, 633, 637, 641, 646,
- 651, 656, 660, 665, 670, 677, 679, 683, 708, 713,
- 723, 725, 727, 732, 737, 739, 741, 746, 751, 756,
- 762, 771, 776, 804, 812, 820, 825, 831, 836, 842,
- 846, 856, 858, 860, 865, 867, 869, 871, 873, 875,
- 877, 879, 881, 883, 885, 887, 889, 891, 893, 895,
- 897, 899, 901, 903, 905, 909, 911, 913, 915, 917,
- 919, 924, 928, 928, 931, 932, 937, 938, 943, 948,
- 959, 960
-};
-#endif
-
-#if YYDEBUG || YYERROR_VERBOSE || 0
-/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
- First, the terminals, then, starting at YYNTOKENS, nonterminals. */
-static const char *const yytname[] =
-{
- "$end", "error", "$undefined", "tAGO", "tDST", "tYEAR_UNIT",
- "tMONTH_UNIT", "tHOUR_UNIT", "tMINUTE_UNIT", "tSEC_UNIT", "tDAY_UNIT",
- "tDAY_SHIFT", "tDAY", "tDAYZONE", "tLOCAL_ZONE", "tMERIDIAN", "tMONTH",
- "tORDINAL", "tZONE", "tSNUMBER", "tUNUMBER", "tSDECIMAL_NUMBER",
- "tUDECIMAL_NUMBER", "'@'", "'T'", "':'", "','", "'/'", "$accept", "spec",
- "timespec", "items", "item", "datetime", "iso_8601_datetime", "time",
- "iso_8601_time", "o_zone_offset", "zone_offset", "local_zone", "zone",
- "day", "date", "iso_8601_date", "rel", "relunit", "relunit_snumber",
- "dayshift", "seconds", "signed_seconds", "unsigned_seconds", "number",
- "hybrid", "o_colon_minutes", YY_NULL
-};
-#endif
-
-# ifdef YYPRINT
-/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
- token YYLEX-NUM. */
-static const yytype_uint16 yytoknum[] =
-{
- 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
- 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
- 275, 276, 277, 64, 84, 58, 44, 47
-};
-# endif
-
-/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
-static const yytype_uint8 yyr1[] =
-{
- 0, 28, 29, 29, 30, 31, 31, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 33, 34, 35, 35,
- 35, 35, 36, 36, 36, 37, 37, 38, 39, 39,
- 40, 40, 40, 40, 40, 40, 40, 41, 41, 41,
- 41, 42, 42, 42, 42, 42, 42, 42, 42, 42,
- 43, 44, 44, 44, 45, 45, 45, 45, 45, 45,
- 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
- 45, 45, 45, 45, 45, 46, 46, 46, 46, 46,
- 46, 47, 48, 48, 49, 49, 50, 50, 51, 52,
- 53, 53
-};
-
-/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
-static const yytype_uint8 yyr2[] =
-{
- 0, 2, 1, 1, 2, 0, 2, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 3, 2, 4,
- 6, 1, 2, 4, 6, 0, 1, 2, 1, 2,
- 1, 1, 2, 2, 3, 1, 2, 1, 2, 2,
- 2, 3, 5, 3, 3, 2, 4, 2, 3, 1,
- 3, 2, 1, 1, 2, 2, 1, 2, 2, 1,
- 2, 2, 1, 2, 2, 1, 2, 2, 1, 2,
- 2, 2, 2, 1, 1, 2, 2, 2, 2, 2,
- 2, 1, 1, 1, 1, 1, 1, 1, 1, 2,
- 0, 2
-};
-
-/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM.
- Performed when YYTABLE doesn't specify something else to do. Zero
- means the default is an error. */
-static const yytype_uint8 yydefact[] =
-{
- 5, 0, 0, 2, 3, 85, 87, 84, 86, 4,
- 82, 83, 1, 56, 59, 65, 68, 73, 62, 81,
- 37, 35, 28, 0, 0, 30, 0, 88, 0, 0,
- 31, 6, 7, 16, 8, 21, 9, 10, 12, 11,
- 49, 13, 52, 74, 53, 14, 15, 38, 29, 0,
- 45, 54, 57, 63, 66, 69, 60, 39, 36, 90,
- 32, 75, 76, 78, 79, 80, 77, 55, 58, 64,
- 67, 70, 61, 40, 18, 47, 90, 0, 0, 22,
- 89, 71, 72, 33, 0, 51, 44, 0, 0, 34,
- 43, 48, 50, 27, 25, 41, 0, 17, 46, 91,
- 19, 90, 0, 23, 26, 0, 0, 25, 42, 25,
- 20, 24, 0, 25
-};
-
-/* YYDEFGOTO[NTERM-NUM]. */
-static const yytype_int8 yydefgoto[] =
-{
- -1, 2, 3, 4, 31, 32, 33, 34, 35, 103,
- 104, 36, 37, 38, 39, 40, 41, 42, 43, 44,
- 9, 10, 11, 45, 46, 93
-};
-
-/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
- STATE-NUM. */
-#define YYPACT_NINF -93
-static const yytype_int8 yypact[] =
-{
- 38, 27, 77, -93, 46, -93, -93, -93, -93, -93,
- -93, -93, -93, -93, -93, -93, -93, -93, -93, -93,
- 62, -93, 82, -3, 66, 3, 74, -4, 83, 84,
- 75, -93, -93, -93, -93, -93, -93, -93, -93, -93,
- 71, -93, 93, -93, -93, -93, -93, -93, -93, 78,
- 72, -93, -93, -93, -93, -93, -93, -93, -93, 25,
- -93, -93, -93, -93, -93, -93, -93, -93, -93, -93,
- -93, -93, -93, -93, -93, 21, 19, 79, 80, -93,
- -93, -93, -93, -93, 81, -93, -93, 85, 86, -93,
- -93, -93, -93, -93, -6, 76, 17, -93, -93, -93,
- -93, 87, 69, -93, -93, 88, 89, -1, -93, 18,
- -93, -93, 69, 91
-};
-
-/* YYPGOTO[NTERM-NUM]. */
-static const yytype_int8 yypgoto[] =
-{
- -93, -93, -93, -93, -93, -93, -93, -93, 20, -68,
- -27, -93, -93, -93, -93, -93, -93, -93, 60, -93,
- -93, -93, -92, -93, -93, 43
-};
-
-/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
- positive, shift that token. If negative, reduce the rule which
- number is the opposite. If YYTABLE_NINF, syntax error. */
-#define YYTABLE_NINF -1
-static const yytype_uint8 yytable[] =
-{
- 79, 67, 68, 69, 70, 71, 72, 58, 73, 100,
- 107, 74, 75, 101, 110, 76, 49, 50, 101, 102,
- 113, 77, 59, 78, 61, 62, 63, 64, 65, 66,
- 61, 62, 63, 64, 65, 66, 101, 101, 92, 111,
- 90, 91, 106, 112, 88, 111, 5, 6, 7, 8,
- 88, 13, 14, 15, 16, 17, 18, 19, 20, 21,
- 22, 1, 23, 24, 25, 26, 27, 28, 29, 79,
- 30, 51, 52, 53, 54, 55, 56, 12, 57, 61,
- 62, 63, 64, 65, 66, 60, 48, 80, 47, 6,
- 83, 8, 81, 82, 26, 84, 85, 86, 87, 94,
- 95, 96, 89, 105, 97, 98, 99, 0, 108, 109,
- 101, 0, 88
-};
-
-#define yypact_value_is_default(Yystate) \
- (!!((Yystate) == (-93)))
-
-#define yytable_value_is_error(Yytable_value) \
- YYID (0)
-
-static const yytype_int8 yycheck[] =
-{
- 27, 5, 6, 7, 8, 9, 10, 4, 12, 15,
- 102, 15, 16, 19, 15, 19, 19, 20, 19, 25,
- 112, 25, 19, 27, 5, 6, 7, 8, 9, 10,
- 5, 6, 7, 8, 9, 10, 19, 19, 19, 107,
- 19, 20, 25, 25, 25, 113, 19, 20, 21, 22,
- 25, 5, 6, 7, 8, 9, 10, 11, 12, 13,
- 14, 23, 16, 17, 18, 19, 20, 21, 22, 96,
- 24, 5, 6, 7, 8, 9, 10, 0, 12, 5,
- 6, 7, 8, 9, 10, 25, 4, 27, 26, 20,
- 30, 22, 9, 9, 19, 24, 3, 19, 26, 20,
- 20, 20, 59, 27, 84, 20, 20, -1, 20, 20,
- 19, -1, 25
-};
-
-/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
- symbol of state STATE-NUM. */
-static const yytype_uint8 yystos[] =
-{
- 0, 23, 29, 30, 31, 19, 20, 21, 22, 48,
- 49, 50, 0, 5, 6, 7, 8, 9, 10, 11,
- 12, 13, 14, 16, 17, 18, 19, 20, 21, 22,
- 24, 32, 33, 34, 35, 36, 39, 40, 41, 42,
- 43, 44, 45, 46, 47, 51, 52, 26, 4, 19,
- 20, 5, 6, 7, 8, 9, 10, 12, 4, 19,
- 46, 5, 6, 7, 8, 9, 10, 5, 6, 7,
- 8, 9, 10, 12, 15, 16, 19, 25, 27, 38,
- 46, 9, 9, 46, 24, 3, 19, 26, 25, 53,
- 19, 20, 19, 53, 20, 20, 20, 36, 20, 20,
- 15, 19, 25, 37, 38, 27, 25, 50, 20, 20,
- 15, 37, 25, 50
-};
-
-#define yyerrok (yyerrstatus = 0)
-#define yyclearin (yychar = YYEMPTY)
-#define YYEMPTY (-2)
-#define YYEOF 0
-
-#define YYACCEPT goto yyacceptlab
-#define YYABORT goto yyabortlab
-#define YYERROR goto yyerrorlab
-
-
-/* Like YYERROR except do call yyerror. This remains here temporarily
- to ease the transition to the new meaning of YYERROR, for GCC.
- Once GCC version 2 has supplanted version 1, this can go. However,
- YYFAIL appears to be in use. Nevertheless, it is formally deprecated
- in Bison 2.4.2's NEWS entry, where a plan to phase it out is
- discussed. */
-
-#define YYFAIL goto yyerrlab
-#if defined YYFAIL
- /* This is here to suppress warnings from the GCC cpp's
- -Wunused-macros. Normally we don't worry about that warning, but
- some users do, and we want to make it easy for users to remove
- YYFAIL uses, which will produce warnings from Bison 2.5. */
-#endif
-
-#define YYRECOVERING() (!!yyerrstatus)
-
-#define YYBACKUP(Token, Value) \
-do \
- if (yychar == YYEMPTY) \
- { \
- yychar = (Token); \
- yylval = (Value); \
- YYPOPSTACK (yylen); \
- yystate = *yyssp; \
- goto yybackup; \
- } \
- else \
- { \
- yyerror (pc, YY_("syntax error: cannot back up")); \
- YYERROR; \
- } \
-while (YYID (0))
-
-/* Error token number */
-#define YYTERROR 1
-#define YYERRCODE 256
-
-
-/* This macro is provided for backward compatibility. */
-#ifndef YY_LOCATION_PRINT
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-#endif
-
-
-/* YYLEX -- calling `yylex' with the right arguments. */
-#ifdef YYLEX_PARAM
-# define YYLEX yylex (&yylval, YYLEX_PARAM)
-#else
-# define YYLEX yylex (&yylval, pc)
-#endif
-
-/* Enable debugging if requested. */
-#if YYDEBUG
-
-# ifndef YYFPRINTF
-# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
-# define YYFPRINTF fprintf
-# endif
-
-# define YYDPRINTF(Args) \
-do { \
- if (yydebug) \
- YYFPRINTF Args; \
-} while (YYID (0))
-
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
-do { \
- if (yydebug) \
- { \
- YYFPRINTF (stderr, "%s ", Title); \
- yy_symbol_print (stderr, \
- Type, Value, pc); \
- YYFPRINTF (stderr, "\n"); \
- } \
-} while (YYID (0))
-
-
-/*--------------------------------.
-| Print this symbol on YYOUTPUT. |
-`--------------------------------*/
-
-/*ARGSUSED*/
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static void
-yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
-#else
-static void
-yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc)
- FILE *yyoutput;
- int yytype;
- YYSTYPE const * const yyvaluep;
- parser_control *pc;
-#endif
-{
- FILE *yyo = yyoutput;
- YYUSE (yyo);
- if (!yyvaluep)
- return;
- YYUSE (pc);
-# ifdef YYPRINT
- if (yytype < YYNTOKENS)
- YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
-# else
- YYUSE (yyoutput);
-# endif
- switch (yytype)
- {
- default:
- break;
- }
-}
-
-
-/*--------------------------------.
-| Print this symbol on YYOUTPUT. |
-`--------------------------------*/
-
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static void
-yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
-#else
-static void
-yy_symbol_print (yyoutput, yytype, yyvaluep, pc)
- FILE *yyoutput;
- int yytype;
- YYSTYPE const * const yyvaluep;
- parser_control *pc;
-#endif
-{
- if (yytype < YYNTOKENS)
- YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
- else
- YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
-
- yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc);
- YYFPRINTF (yyoutput, ")");
-}
-
-/*------------------------------------------------------------------.
-| yy_stack_print -- Print the state stack from its BOTTOM up to its |
-| TOP (included). |
-`------------------------------------------------------------------*/
-
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static void
-yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
-#else
-static void
-yy_stack_print (yybottom, yytop)
- yytype_int16 *yybottom;
- yytype_int16 *yytop;
-#endif
-{
- YYFPRINTF (stderr, "Stack now");
- for (; yybottom <= yytop; yybottom++)
- {
- int yybot = *yybottom;
- YYFPRINTF (stderr, " %d", yybot);
- }
- YYFPRINTF (stderr, "\n");
-}
-
-# define YY_STACK_PRINT(Bottom, Top) \
-do { \
- if (yydebug) \
- yy_stack_print ((Bottom), (Top)); \
-} while (YYID (0))
-
-
-/*------------------------------------------------.
-| Report that the YYRULE is going to be reduced. |
-`------------------------------------------------*/
-
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static void
-yy_reduce_print (YYSTYPE *yyvsp, int yyrule, parser_control *pc)
-#else
-static void
-yy_reduce_print (yyvsp, yyrule, pc)
- YYSTYPE *yyvsp;
- int yyrule;
- parser_control *pc;
-#endif
-{
- int yynrhs = yyr2[yyrule];
- int yyi;
- unsigned long int yylno = yyrline[yyrule];
- YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
- yyrule - 1, yylno);
- /* The symbols being reduced. */
- for (yyi = 0; yyi < yynrhs; yyi++)
- {
- YYFPRINTF (stderr, " $%d = ", yyi + 1);
- yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
- &(yyvsp[(yyi + 1) - (yynrhs)])
- , pc);
- YYFPRINTF (stderr, "\n");
- }
-}
-
-# define YY_REDUCE_PRINT(Rule) \
-do { \
- if (yydebug) \
- yy_reduce_print (yyvsp, Rule, pc); \
-} while (YYID (0))
-
-/* Nonzero means print parse trace. It is left uninitialized so that
- multiple parsers can coexist. */
-int yydebug;
-#else /* !YYDEBUG */
-# define YYDPRINTF(Args)
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
-# define YY_STACK_PRINT(Bottom, Top)
-# define YY_REDUCE_PRINT(Rule)
-#endif /* !YYDEBUG */
-
-
-/* YYINITDEPTH -- initial size of the parser's stacks. */
-#ifndef YYINITDEPTH
-# define YYINITDEPTH 200
-#endif
-
-/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
- if the built-in stack extension method is used).
-
- Do not make this value too large; the results are undefined if
- YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
- evaluated with infinite-precision integer arithmetic. */
-
-#ifndef YYMAXDEPTH
-# define YYMAXDEPTH 10000
-#endif
-
-
-#if YYERROR_VERBOSE
-
-# ifndef yystrlen
-# if defined __GLIBC__ && defined _STRING_H
-# define yystrlen strlen
-# else
-/* Return the length of YYSTR. */
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static YYSIZE_T
-yystrlen (const char *yystr)
-#else
-static YYSIZE_T
-yystrlen (yystr)
- const char *yystr;
-#endif
-{
- YYSIZE_T yylen;
- for (yylen = 0; yystr[yylen]; yylen++)
- continue;
- return yylen;
-}
-# endif
-# endif
-
-# ifndef yystpcpy
-# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
-# define yystpcpy stpcpy
-# else
-/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
- YYDEST. */
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static char *
-yystpcpy (char *yydest, const char *yysrc)
-#else
-static char *
-yystpcpy (yydest, yysrc)
- char *yydest;
- const char *yysrc;
-#endif
-{
- char *yyd = yydest;
- const char *yys = yysrc;
-
- while ((*yyd++ = *yys++) != '\0')
- continue;
-
- return yyd - 1;
-}
-# endif
-# endif
-
-# ifndef yytnamerr
-/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
- quotes and backslashes, so that it's suitable for yyerror. The
- heuristic is that double-quoting is unnecessary unless the string
- contains an apostrophe, a comma, or backslash (other than
- backslash-backslash). YYSTR is taken from yytname. If YYRES is
- null, do not copy; instead, return the length of what the result
- would have been. */
-static YYSIZE_T
-yytnamerr (char *yyres, const char *yystr)
-{
- if (*yystr == '"')
- {
- YYSIZE_T yyn = 0;
- char const *yyp = yystr;
-
- for (;;)
- switch (*++yyp)
- {
- case '\'':
- case ',':
- goto do_not_strip_quotes;
-
- case '\\':
- if (*++yyp != '\\')
- goto do_not_strip_quotes;
- /* Fall through. */
- default:
- if (yyres)
- yyres[yyn] = *yyp;
- yyn++;
- break;
-
- case '"':
- if (yyres)
- yyres[yyn] = '\0';
- return yyn;
- }
- do_not_strip_quotes: ;
- }
-
- if (! yyres)
- return yystrlen (yystr);
-
- return yystpcpy (yyres, yystr) - yyres;
-}
-# endif
-
-/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
- about the unexpected token YYTOKEN for the state stack whose top is
- YYSSP.
-
- Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is
- not large enough to hold the message. In that case, also set
- *YYMSG_ALLOC to the required number of bytes. Return 2 if the
- required number of bytes is too large to store. */
-static int
-yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
- yytype_int16 *yyssp, int yytoken)
-{
- YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]);
- YYSIZE_T yysize = yysize0;
- enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
- /* Internationalized format string. */
- const char *yyformat = YY_NULL;
- /* Arguments of yyformat. */
- char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
- /* Number of reported tokens (one for the "unexpected", one per
- "expected"). */
- int yycount = 0;
-
- /* There are many possibilities here to consider:
- - Assume YYFAIL is not used. It's too flawed to consider. See
- <http://lists.gnu.org/archive/html/bison-patches/2009-12/msg00024.html>
- for details. YYERROR is fine as it does not invoke this
- function.
- - If this state is a consistent state with a default action, then
- the only way this function was invoked is if the default action
- is an error action. In that case, don't check for expected
- tokens because there are none.
- - The only way there can be no lookahead present (in yychar) is if
- this state is a consistent state with a default action. Thus,
- detecting the absence of a lookahead is sufficient to determine
- that there is no unexpected or expected token to report. In that
- case, just report a simple "syntax error".
- - Don't assume there isn't a lookahead just because this state is a
- consistent state with a default action. There might have been a
- previous inconsistent state, consistent state with a non-default
- action, or user semantic action that manipulated yychar.
- - Of course, the expected token list depends on states to have
- correct lookahead information, and it depends on the parser not
- to perform extra reductions after fetching a lookahead from the
- scanner and before detecting a syntax error. Thus, state merging
- (from LALR or IELR) and default reductions corrupt the expected
- token list. However, the list is correct for canonical LR with
- one exception: it will still contain any token that will not be
- accepted due to an error action in a later state.
- */
- if (yytoken != YYEMPTY)
- {
- int yyn = yypact[*yyssp];
- yyarg[yycount++] = yytname[yytoken];
- if (!yypact_value_is_default (yyn))
- {
- /* Start YYX at -YYN if negative to avoid negative indexes in
- YYCHECK. In other words, skip the first -YYN actions for
- this state because they are default actions. */
- int yyxbegin = yyn < 0 ? -yyn : 0;
- /* Stay within bounds of both yycheck and yytname. */
- int yychecklim = YYLAST - yyn + 1;
- int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
- int yyx;
-
- for (yyx = yyxbegin; yyx < yyxend; ++yyx)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
- && !yytable_value_is_error (yytable[yyx + yyn]))
- {
- if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
- {
- yycount = 1;
- yysize = yysize0;
- break;
- }
- yyarg[yycount++] = yytname[yyx];
- {
- YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]);
- if (! (yysize <= yysize1
- && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
- return 2;
- yysize = yysize1;
- }
- }
- }
- }
-
- switch (yycount)
- {
-# define YYCASE_(N, S) \
- case N: \
- yyformat = S; \
- break
- YYCASE_(0, YY_("syntax error"));
- YYCASE_(1, YY_("syntax error, unexpected %s"));
- YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
- YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
- YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
- YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
-# undef YYCASE_
- }
-
- {
- YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
- if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
- return 2;
- yysize = yysize1;
- }
-
- if (*yymsg_alloc < yysize)
- {
- *yymsg_alloc = 2 * yysize;
- if (! (yysize <= *yymsg_alloc
- && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
- *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
- return 1;
- }
-
- /* Avoid sprintf, as that infringes on the user's name space.
- Don't have undefined behavior even if the translation
- produced a string with the wrong number of "%s"s. */
- {
- char *yyp = *yymsg;
- int yyi = 0;
- while ((*yyp = *yyformat) != '\0')
- if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
- {
- yyp += yytnamerr (yyp, yyarg[yyi++]);
- yyformat += 2;
- }
- else
- {
- yyp++;
- yyformat++;
- }
- }
- return 0;
-}
-#endif /* YYERROR_VERBOSE */
-
-/*-----------------------------------------------.
-| Release the memory associated to this symbol. |
-`-----------------------------------------------*/
-
-/*ARGSUSED*/
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-static void
-yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, parser_control *pc)
-#else
-static void
-yydestruct (yymsg, yytype, yyvaluep, pc)
- const char *yymsg;
- int yytype;
- YYSTYPE *yyvaluep;
- parser_control *pc;
-#endif
-{
- YYUSE (yyvaluep);
- YYUSE (pc);
-
- if (!yymsg)
- yymsg = "Deleting";
- YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
-
- switch (yytype)
- {
-
- default:
- break;
- }
-}
-
-
-
-
-/*----------.
-| yyparse. |
-`----------*/
-
-#ifdef YYPARSE_PARAM
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-int
-yyparse (void *YYPARSE_PARAM)
-#else
-int
-yyparse (YYPARSE_PARAM)
- void *YYPARSE_PARAM;
-#endif
-#else /* ! YYPARSE_PARAM */
-#if (defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)
-int
-yyparse (parser_control *pc)
-#else
-int
-yyparse (pc)
- parser_control *pc;
-#endif
-#endif
-{
-/* The lookahead symbol. */
-int yychar;
-
-
-#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
-/* Suppress an incorrect diagnostic about yylval being uninitialized. */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
- _Pragma ("GCC diagnostic push") \
- _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
- _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
- _Pragma ("GCC diagnostic pop")
-#else
-/* Default value used for initialization, for pacifying older GCCs
- or non-GCC compilers. */
-static YYSTYPE yyval_default;
-# define YY_INITIAL_VALUE(Value) = Value
-#endif
-#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END
-#endif
-#ifndef YY_INITIAL_VALUE
-# define YY_INITIAL_VALUE(Value) /* Nothing. */
-#endif
-
-/* The semantic value of the lookahead symbol. */
-YYSTYPE yylval YY_INITIAL_VALUE(yyval_default);
-
- /* Number of syntax errors so far. */
- int yynerrs;
-
- int yystate;
- /* Number of tokens to shift before error messages enabled. */
- int yyerrstatus;
-
- /* The stacks and their tools:
- `yyss': related to states.
- `yyvs': related to semantic values.
-
- Refer to the stacks through separate pointers, to allow yyoverflow
- to reallocate them elsewhere. */
-
- /* The state stack. */
- yytype_int16 yyssa[YYINITDEPTH];
- yytype_int16 *yyss;
- yytype_int16 *yyssp;
-
- /* The semantic value stack. */
- YYSTYPE yyvsa[YYINITDEPTH];
- YYSTYPE *yyvs;
- YYSTYPE *yyvsp;
-
- YYSIZE_T yystacksize;
-
- int yyn;
- int yyresult;
- /* Lookahead token as an internal (translated) token number. */
- int yytoken = 0;
- /* The variables used to return semantic value and location from the
- action routines. */
- YYSTYPE yyval;
-
-#if YYERROR_VERBOSE
- /* Buffer for error messages, and its allocated size. */
- char yymsgbuf[128];
- char *yymsg = yymsgbuf;
- YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
-#endif
-
-#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
-
- /* The number of symbols on the RHS of the reduced rule.
- Keep to zero when no symbol should be popped. */
- int yylen = 0;
-
- yyssp = yyss = yyssa;
- yyvsp = yyvs = yyvsa;
- yystacksize = YYINITDEPTH;
-
- YYDPRINTF ((stderr, "Starting parse\n"));
-
- yystate = 0;
- yyerrstatus = 0;
- yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
- goto yysetstate;
-
-/*------------------------------------------------------------.
-| yynewstate -- Push a new state, which is found in yystate. |
-`------------------------------------------------------------*/
- yynewstate:
- /* In all cases, when you get here, the value and location stacks
- have just been pushed. So pushing a state here evens the stacks. */
- yyssp++;
-
- yysetstate:
- *yyssp = yystate;
-
- if (yyss + yystacksize - 1 <= yyssp)
- {
- /* Get the current used size of the three stacks, in elements. */
- YYSIZE_T yysize = yyssp - yyss + 1;
-
-#ifdef yyoverflow
- {
- /* Give user a chance to reallocate the stack. Use copies of
- these so that the &'s don't force the real ones into
- memory. */
- YYSTYPE *yyvs1 = yyvs;
- yytype_int16 *yyss1 = yyss;
-
- /* Each stack pointer address is followed by the size of the
- data in use in that stack, in bytes. This used to be a
- conditional around just the two extra args, but that might
- be undefined if yyoverflow is a macro. */
- yyoverflow (YY_("memory exhausted"),
- &yyss1, yysize * sizeof (*yyssp),
- &yyvs1, yysize * sizeof (*yyvsp),
- &yystacksize);
-
- yyss = yyss1;
- yyvs = yyvs1;
- }
-#else /* no yyoverflow */
-# ifndef YYSTACK_RELOCATE
- goto yyexhaustedlab;
-# else
- /* Extend the stack our own way. */
- if (YYMAXDEPTH <= yystacksize)
- goto yyexhaustedlab;
- yystacksize *= 2;
- if (YYMAXDEPTH < yystacksize)
- yystacksize = YYMAXDEPTH;
-
- {
- yytype_int16 *yyss1 = yyss;
- union yyalloc *yyptr =
- (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
- if (! yyptr)
- goto yyexhaustedlab;
- YYSTACK_RELOCATE (yyss_alloc, yyss);
- YYSTACK_RELOCATE (yyvs_alloc, yyvs);
-# undef YYSTACK_RELOCATE
- if (yyss1 != yyssa)
- YYSTACK_FREE (yyss1);
- }
-# endif
-#endif /* no yyoverflow */
-
- yyssp = yyss + yysize - 1;
- yyvsp = yyvs + yysize - 1;
-
- YYDPRINTF ((stderr, "Stack size increased to %lu\n",
- (unsigned long int) yystacksize));
-
- if (yyss + yystacksize - 1 <= yyssp)
- YYABORT;
- }
-
- YYDPRINTF ((stderr, "Entering state %d\n", yystate));
-
- if (yystate == YYFINAL)
- YYACCEPT;
-
- goto yybackup;
-
-/*-----------.
-| yybackup. |
-`-----------*/
-yybackup:
-
- /* Do appropriate processing given the current state. Read a
- lookahead token if we need one and don't already have one. */
-
- /* First try to decide what to do without reference to lookahead token. */
- yyn = yypact[yystate];
- if (yypact_value_is_default (yyn))
- goto yydefault;
-
- /* Not known => get a lookahead token if don't already have one. */
-
- /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
- if (yychar == YYEMPTY)
- {
- YYDPRINTF ((stderr, "Reading a token: "));
- yychar = YYLEX;
- }
-
- if (yychar <= YYEOF)
- {
- yychar = yytoken = YYEOF;
- YYDPRINTF ((stderr, "Now at end of input.\n"));
- }
- else
- {
- yytoken = YYTRANSLATE (yychar);
- YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
- }
-
- /* If the proper action on seeing token YYTOKEN is to reduce or to
- detect an error, take that action. */
- yyn += yytoken;
- if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
- goto yydefault;
- yyn = yytable[yyn];
- if (yyn <= 0)
- {
- if (yytable_value_is_error (yyn))
- goto yyerrlab;
- yyn = -yyn;
- goto yyreduce;
- }
-
- /* Count tokens shifted since error; after three, turn off error
- status. */
- if (yyerrstatus)
- yyerrstatus--;
-
- /* Shift the lookahead token. */
- YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
-
- /* Discard the shifted token. */
- yychar = YYEMPTY;
-
- yystate = yyn;
- YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
- *++yyvsp = yylval;
- YY_IGNORE_MAYBE_UNINITIALIZED_END
-
- goto yynewstate;
-
-
-/*-----------------------------------------------------------.
-| yydefault -- do the default action for the current state. |
-`-----------------------------------------------------------*/
-yydefault:
- yyn = yydefact[yystate];
- if (yyn == 0)
- goto yyerrlab;
- goto yyreduce;
-
-
-/*-----------------------------.
-| yyreduce -- Do a reduction. |
-`-----------------------------*/
-yyreduce:
- /* yyn is the number of a rule to reduce with. */
- yylen = yyr2[yyn];
-
- /* If YYLEN is nonzero, implement the default value of the action:
- `$$ = $1'.
-
- Otherwise, the following line sets YYVAL to garbage.
- This behavior is undocumented and Bison
- users should not rely upon it. Assigning to YYVAL
- unconditionally makes the parser a bit smaller, and it avoids a
- GCC warning that YYVAL may be used uninitialized. */
- yyval = yyvsp[1-yylen];
-
-
- YY_REDUCE_PRINT (yyn);
- switch (yyn)
- {
- case 4:
-/* Line 1792 of yacc.c */
-#line 575 "hwclock-date.y"
- {
- pc->seconds = (yyvsp[(2) - (2)].timespec);
- pc->timespec_seen = 1;
- debug_print_current_time (_("number of seconds"), pc);
- }
- break;
-
- case 7:
-/* Line 1792 of yacc.c */
-#line 589 "hwclock-date.y"
- {
- pc->times_seen++; pc->dates_seen++;
- debug_print_current_time (_("datetime"), pc);
- }
- break;
-
- case 8:
-/* Line 1792 of yacc.c */
-#line 594 "hwclock-date.y"
- {
- pc->times_seen++;
- debug_print_current_time (_("time"), pc);
- }
- break;
-
- case 9:
-/* Line 1792 of yacc.c */
-#line 599 "hwclock-date.y"
- {
- pc->local_zones_seen++;
- debug_print_current_time (_("local_zone"), pc);
- }
- break;
-
- case 10:
-/* Line 1792 of yacc.c */
-#line 604 "hwclock-date.y"
- {
- pc->zones_seen++;
- debug_print_current_time (_("zone"), pc);
- }
- break;
-
- case 11:
-/* Line 1792 of yacc.c */
-#line 609 "hwclock-date.y"
- {
- pc->dates_seen++;
- debug_print_current_time (_("date"), pc);
- }
- break;
-
- case 12:
-/* Line 1792 of yacc.c */
-#line 614 "hwclock-date.y"
- {
- pc->days_seen++;
- debug_print_current_time (_("day"), pc);
- }
- break;
-
- case 13:
-/* Line 1792 of yacc.c */
-#line 619 "hwclock-date.y"
- {
- debug_print_relative_time (_("relative"), pc);
- }
- break;
-
- case 14:
-/* Line 1792 of yacc.c */
-#line 623 "hwclock-date.y"
- {
- debug_print_current_time (_("number"), pc);
- }
- break;
-
- case 15:
-/* Line 1792 of yacc.c */
-#line 627 "hwclock-date.y"
- {
- debug_print_relative_time (_("hybrid"), pc);
- }
- break;
-
- case 18:
-/* Line 1792 of yacc.c */
-#line 642 "hwclock-date.y"
- {
- set_hhmmss (pc, (yyvsp[(1) - (2)].textintval).value, 0, 0, 0);
- pc->meridian = (yyvsp[(2) - (2)].intval);
- }
- break;
-
- case 19:
-/* Line 1792 of yacc.c */
-#line 647 "hwclock-date.y"
- {
- set_hhmmss (pc, (yyvsp[(1) - (4)].textintval).value, (yyvsp[(3) - (4)].textintval).value, 0, 0);
- pc->meridian = (yyvsp[(4) - (4)].intval);
- }
- break;
-
- case 20:
-/* Line 1792 of yacc.c */
-#line 652 "hwclock-date.y"
- {
- set_hhmmss (pc, (yyvsp[(1) - (6)].textintval).value, (yyvsp[(3) - (6)].textintval).value, (yyvsp[(5) - (6)].timespec).tv_sec, (yyvsp[(5) - (6)].timespec).tv_nsec);
- pc->meridian = (yyvsp[(6) - (6)].intval);
- }
- break;
-
- case 22:
-/* Line 1792 of yacc.c */
-#line 661 "hwclock-date.y"
- {
- set_hhmmss (pc, (yyvsp[(1) - (2)].textintval).value, 0, 0, 0);
- pc->meridian = MER24;
- }
- break;
-
- case 23:
-/* Line 1792 of yacc.c */
-#line 666 "hwclock-date.y"
- {
- set_hhmmss (pc, (yyvsp[(1) - (4)].textintval).value, (yyvsp[(3) - (4)].textintval).value, 0, 0);
- pc->meridian = MER24;
- }
- break;
-
- case 24:
-/* Line 1792 of yacc.c */
-#line 671 "hwclock-date.y"
- {
- set_hhmmss (pc, (yyvsp[(1) - (6)].textintval).value, (yyvsp[(3) - (6)].textintval).value, (yyvsp[(5) - (6)].timespec).tv_sec, (yyvsp[(5) - (6)].timespec).tv_nsec);
- pc->meridian = MER24;
- }
- break;
-
- case 27:
-/* Line 1792 of yacc.c */
-#line 684 "hwclock-date.y"
- {
- pc->zones_seen++;
- pc->time_zone = time_zone_hhmm (pc, (yyvsp[(1) - (2)].textintval), (yyvsp[(2) - (2)].intval));
- }
- break;
-
- case 28:
-/* Line 1792 of yacc.c */
-#line 709 "hwclock-date.y"
- {
- pc->local_isdst = (yyvsp[(1) - (1)].intval);
- pc->dsts_seen += (0 < (yyvsp[(1) - (1)].intval));
- }
- break;
-
- case 29:
-/* Line 1792 of yacc.c */
-#line 714 "hwclock-date.y"
- {
- pc->local_isdst = 1;
- pc->dsts_seen += (0 < (yyvsp[(1) - (2)].intval)) + 1;
- }
- break;
-
- case 30:
-/* Line 1792 of yacc.c */
-#line 724 "hwclock-date.y"
- { pc->time_zone = (yyvsp[(1) - (1)].intval); }
- break;
-
- case 31:
-/* Line 1792 of yacc.c */
-#line 726 "hwclock-date.y"
- { pc->time_zone = HOUR(7); }
- break;
-
- case 32:
-/* Line 1792 of yacc.c */
-#line 728 "hwclock-date.y"
- { pc->time_zone = (yyvsp[(1) - (2)].intval);
- apply_relative_time (pc, (yyvsp[(2) - (2)].rel), 1);
- debug_print_relative_time (_("relative"), pc);
- }
- break;
-
- case 33:
-/* Line 1792 of yacc.c */
-#line 733 "hwclock-date.y"
- { pc->time_zone = HOUR(7);
- apply_relative_time (pc, (yyvsp[(2) - (2)].rel), 1);
- debug_print_relative_time (_("relative"), pc);
- }
- break;
-
- case 34:
-/* Line 1792 of yacc.c */
-#line 738 "hwclock-date.y"
- { pc->time_zone = (yyvsp[(1) - (3)].intval) + time_zone_hhmm (pc, (yyvsp[(2) - (3)].textintval), (yyvsp[(3) - (3)].intval)); }
- break;
-
- case 35:
-/* Line 1792 of yacc.c */
-#line 740 "hwclock-date.y"
- { pc->time_zone = (yyvsp[(1) - (1)].intval) + 60; }
- break;
-
- case 36:
-/* Line 1792 of yacc.c */
-#line 742 "hwclock-date.y"
- { pc->time_zone = (yyvsp[(1) - (2)].intval) + 60; }
- break;
-
- case 37:
-/* Line 1792 of yacc.c */
-#line 747 "hwclock-date.y"
- {
- pc->day_ordinal = 0;
- pc->day_number = (yyvsp[(1) - (1)].intval);
- }
- break;
-
- case 38:
-/* Line 1792 of yacc.c */
-#line 752 "hwclock-date.y"
- {
- pc->day_ordinal = 0;
- pc->day_number = (yyvsp[(1) - (2)].intval);
- }
- break;
-
- case 39:
-/* Line 1792 of yacc.c */
-#line 757 "hwclock-date.y"
- {
- pc->day_ordinal = (yyvsp[(1) - (2)].intval);
- pc->day_number = (yyvsp[(2) - (2)].intval);
- pc->debug_ordinal_day_seen = 1;
- }
- break;
-
- case 40:
-/* Line 1792 of yacc.c */
-#line 763 "hwclock-date.y"
- {
- pc->day_ordinal = (yyvsp[(1) - (2)].textintval).value;
- pc->day_number = (yyvsp[(2) - (2)].intval);
- pc->debug_ordinal_day_seen = 1;
- }
- break;
-
- case 41:
-/* Line 1792 of yacc.c */
-#line 772 "hwclock-date.y"
- {
- pc->month = (yyvsp[(1) - (3)].textintval).value;
- pc->day = (yyvsp[(3) - (3)].textintval).value;
- }
- break;
-
- case 42:
-/* Line 1792 of yacc.c */
-#line 777 "hwclock-date.y"
- {
- /* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
- otherwise as MM/DD/YY.
- The goal in recognizing YYYY/MM/DD is solely to support legacy
- machine-generated dates like those in an RCS log listing. If
- you want portability, use the ISO 8601 format. */
- if (4 <= (yyvsp[(1) - (5)].textintval).digits)
- {
- if (pc->parse_datetime_debug)
- dbg_printf (_("warning: value %ld has %"PRIuMAX" digits. " \
- "Assuming YYYY/MM/DD\n"), (yyvsp[(1) - (5)].textintval).value, (yyvsp[(1) - (5)].textintval).digits);
-
- pc->year = (yyvsp[(1) - (5)].textintval);
- pc->month = (yyvsp[(3) - (5)].textintval).value;
- pc->day = (yyvsp[(5) - (5)].textintval).value;
- }
- else
- {
- if (pc->parse_datetime_debug)
- dbg_printf (_("warning: value %ld has less than 4 digits. " \
- "Assuming MM/DD/YY[YY]\n"), (yyvsp[(1) - (5)].textintval).value);
-
- pc->month = (yyvsp[(1) - (5)].textintval).value;
- pc->day = (yyvsp[(3) - (5)].textintval).value;
- pc->year = (yyvsp[(5) - (5)].textintval);
- }
- }
- break;
-
- case 43:
-/* Line 1792 of yacc.c */
-#line 805 "hwclock-date.y"
- {
- /* e.g. 17-JUN-1992. */
- pc->day = (yyvsp[(1) - (3)].textintval).value;
- pc->month = (yyvsp[(2) - (3)].intval);
- pc->year.value = -(yyvsp[(3) - (3)].textintval).value;
- pc->year.digits = (yyvsp[(3) - (3)].textintval).digits;
- }
- break;
-
- case 44:
-/* Line 1792 of yacc.c */
-#line 813 "hwclock-date.y"
- {
- /* e.g. JUN-17-1992. */
- pc->month = (yyvsp[(1) - (3)].intval);
- pc->day = -(yyvsp[(2) - (3)].textintval).value;
- pc->year.value = -(yyvsp[(3) - (3)].textintval).value;
- pc->year.digits = (yyvsp[(3) - (3)].textintval).digits;
- }
- break;
-
- case 45:
-/* Line 1792 of yacc.c */
-#line 821 "hwclock-date.y"
- {
- pc->month = (yyvsp[(1) - (2)].intval);
- pc->day = (yyvsp[(2) - (2)].textintval).value;
- }
- break;
-
- case 46:
-/* Line 1792 of yacc.c */
-#line 826 "hwclock-date.y"
- {
- pc->month = (yyvsp[(1) - (4)].intval);
- pc->day = (yyvsp[(2) - (4)].textintval).value;
- pc->year = (yyvsp[(4) - (4)].textintval);
- }
- break;
-
- case 47:
-/* Line 1792 of yacc.c */
-#line 832 "hwclock-date.y"
- {
- pc->day = (yyvsp[(1) - (2)].textintval).value;
- pc->month = (yyvsp[(2) - (2)].intval);
- }
- break;
-
- case 48:
-/* Line 1792 of yacc.c */
-#line 837 "hwclock-date.y"
- {
- pc->day = (yyvsp[(1) - (3)].textintval).value;
- pc->month = (yyvsp[(2) - (3)].intval);
- pc->year = (yyvsp[(3) - (3)].textintval);
- }
- break;
-
- case 50:
-/* Line 1792 of yacc.c */
-#line 847 "hwclock-date.y"
- {
- /* ISO 8601 format. YYYY-MM-DD. */
- pc->year = (yyvsp[(1) - (3)].textintval);
- pc->month = -(yyvsp[(2) - (3)].textintval).value;
- pc->day = -(yyvsp[(3) - (3)].textintval).value;
- }
- break;
-
- case 51:
-/* Line 1792 of yacc.c */
-#line 857 "hwclock-date.y"
- { apply_relative_time (pc, (yyvsp[(1) - (2)].rel), (yyvsp[(2) - (2)].intval)); }
- break;
-
- case 52:
-/* Line 1792 of yacc.c */
-#line 859 "hwclock-date.y"
- { apply_relative_time (pc, (yyvsp[(1) - (1)].rel), 1); }
- break;
-
- case 53:
-/* Line 1792 of yacc.c */
-#line 861 "hwclock-date.y"
- { apply_relative_time (pc, (yyvsp[(1) - (1)].rel), 1); }
- break;
-
- case 54:
-/* Line 1792 of yacc.c */
-#line 866 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].intval); }
- break;
-
- case 55:
-/* Line 1792 of yacc.c */
-#line 868 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 56:
-/* Line 1792 of yacc.c */
-#line 870 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; }
- break;
-
- case 57:
-/* Line 1792 of yacc.c */
-#line 872 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].intval); }
- break;
-
- case 58:
-/* Line 1792 of yacc.c */
-#line 874 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 59:
-/* Line 1792 of yacc.c */
-#line 876 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; }
- break;
-
- case 60:
-/* Line 1792 of yacc.c */
-#line 878 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].intval) * (yyvsp[(2) - (2)].intval); }
- break;
-
- case 61:
-/* Line 1792 of yacc.c */
-#line 880 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); }
- break;
-
- case 62:
-/* Line 1792 of yacc.c */
-#line 882 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); }
- break;
-
- case 63:
-/* Line 1792 of yacc.c */
-#line 884 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].intval); }
- break;
-
- case 64:
-/* Line 1792 of yacc.c */
-#line 886 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 65:
-/* Line 1792 of yacc.c */
-#line 888 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; }
- break;
-
- case 66:
-/* Line 1792 of yacc.c */
-#line 890 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].intval); }
- break;
-
- case 67:
-/* Line 1792 of yacc.c */
-#line 892 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 68:
-/* Line 1792 of yacc.c */
-#line 894 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; }
- break;
-
- case 69:
-/* Line 1792 of yacc.c */
-#line 896 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].intval); }
- break;
-
- case 70:
-/* Line 1792 of yacc.c */
-#line 898 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 71:
-/* Line 1792 of yacc.c */
-#line 900 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; }
- break;
-
- case 72:
-/* Line 1792 of yacc.c */
-#line 902 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; }
- break;
-
- case 73:
-/* Line 1792 of yacc.c */
-#line 904 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; }
- break;
-
- case 75:
-/* Line 1792 of yacc.c */
-#line 910 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 76:
-/* Line 1792 of yacc.c */
-#line 912 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 77:
-/* Line 1792 of yacc.c */
-#line 914 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); }
- break;
-
- case 78:
-/* Line 1792 of yacc.c */
-#line 916 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 79:
-/* Line 1792 of yacc.c */
-#line 918 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 80:
-/* Line 1792 of yacc.c */
-#line 920 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; }
- break;
-
- case 81:
-/* Line 1792 of yacc.c */
-#line 925 "hwclock-date.y"
- { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); }
- break;
-
- case 85:
-/* Line 1792 of yacc.c */
-#line 933 "hwclock-date.y"
- { (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; }
- break;
-
- case 87:
-/* Line 1792 of yacc.c */
-#line 939 "hwclock-date.y"
- { (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; }
- break;
-
- case 88:
-/* Line 1792 of yacc.c */
-#line 944 "hwclock-date.y"
- { digits_to_date_time (pc, (yyvsp[(1) - (1)].textintval)); }
- break;
-
- case 89:
-/* Line 1792 of yacc.c */
-#line 949 "hwclock-date.y"
- {
- /* Hybrid all-digit and relative offset, so that we accept e.g.,
- "YYYYMMDD +N days" as well as "YYYYMMDD N days". */
- digits_to_date_time (pc, (yyvsp[(1) - (2)].textintval));
- apply_relative_time (pc, (yyvsp[(2) - (2)].rel), 1);
- }
- break;
-
- case 90:
-/* Line 1792 of yacc.c */
-#line 959 "hwclock-date.y"
- { (yyval.intval) = -1; }
- break;
-
- case 91:
-/* Line 1792 of yacc.c */
-#line 961 "hwclock-date.y"
- { (yyval.intval) = (yyvsp[(2) - (2)].textintval).value; }
- break;
-
-
-/* Line 1792 of yacc.c */
-#line 2612 "hwclock-date.c"
- default: break;
- }
- /* User semantic actions sometimes alter yychar, and that requires
- that yytoken be updated with the new translation. We take the
- approach of translating immediately before every use of yytoken.
- One alternative is translating here after every semantic action,
- but that translation would be missed if the semantic action invokes
- YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
- if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
- incorrect destructor might then be invoked immediately. In the
- case of YYERROR or YYBACKUP, subsequent parser actions might lead
- to an incorrect destructor call or verbose syntax error message
- before the lookahead is translated. */
- YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
-
- YYPOPSTACK (yylen);
- yylen = 0;
- YY_STACK_PRINT (yyss, yyssp);
-
- *++yyvsp = yyval;
-
- /* Now `shift' the result of the reduction. Determine what state
- that goes to, based on the state we popped back to and the rule
- number reduced by. */
-
- yyn = yyr1[yyn];
-
- yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
- if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTOKENS];
-
- goto yynewstate;
-
-
-/*------------------------------------.
-| yyerrlab -- here on detecting error |
-`------------------------------------*/
-yyerrlab:
- /* Make sure we have latest lookahead translation. See comments at
- user semantic actions for why this is necessary. */
- yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
-
- /* If not already recovering from an error, report this error. */
- if (!yyerrstatus)
- {
- ++yynerrs;
-#if ! YYERROR_VERBOSE
- yyerror (pc, YY_("syntax error"));
-#else
-# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
- yyssp, yytoken)
- {
- char const *yymsgp = YY_("syntax error");
- int yysyntax_error_status;
- yysyntax_error_status = YYSYNTAX_ERROR;
- if (yysyntax_error_status == 0)
- yymsgp = yymsg;
- else if (yysyntax_error_status == 1)
- {
- if (yymsg != yymsgbuf)
- YYSTACK_FREE (yymsg);
- yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
- if (!yymsg)
- {
- yymsg = yymsgbuf;
- yymsg_alloc = sizeof yymsgbuf;
- yysyntax_error_status = 2;
- }
- else
- {
- yysyntax_error_status = YYSYNTAX_ERROR;
- yymsgp = yymsg;
- }
- }
- yyerror (pc, yymsgp);
- if (yysyntax_error_status == 2)
- goto yyexhaustedlab;
- }
-# undef YYSYNTAX_ERROR
-#endif
- }
-
-
-
- if (yyerrstatus == 3)
- {
- /* If just tried and failed to reuse lookahead token after an
- error, discard it. */
-
- if (yychar <= YYEOF)
- {
- /* Return failure if at end of input. */
- if (yychar == YYEOF)
- YYABORT;
- }
- else
- {
- yydestruct ("Error: discarding",
- yytoken, &yylval, pc);
- yychar = YYEMPTY;
- }
- }
-
- /* Else will try to reuse lookahead token after shifting the error
- token. */
- goto yyerrlab1;
-
-
-/*---------------------------------------------------.
-| yyerrorlab -- error raised explicitly by YYERROR. |
-`---------------------------------------------------*/
-yyerrorlab:
-
- /* Pacify compilers like GCC when the user code never invokes
- YYERROR and the label yyerrorlab therefore never appears in user
- code. */
- if (/*CONSTCOND*/ 0)
- goto yyerrorlab;
-
- /* Do not reclaim the symbols of the rule which action triggered
- this YYERROR. */
- YYPOPSTACK (yylen);
- yylen = 0;
- YY_STACK_PRINT (yyss, yyssp);
- yystate = *yyssp;
- goto yyerrlab1;
-
-
-/*-------------------------------------------------------------.
-| yyerrlab1 -- common code for both syntax error and YYERROR. |
-`-------------------------------------------------------------*/
-yyerrlab1:
- yyerrstatus = 3; /* Each real token shifted decrements this. */
-
- for (;;)
- {
- yyn = yypact[yystate];
- if (!yypact_value_is_default (yyn))
- {
- yyn += YYTERROR;
- if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
- {
- yyn = yytable[yyn];
- if (0 < yyn)
- break;
- }
- }
-
- /* Pop the current state because it cannot handle the error token. */
- if (yyssp == yyss)
- YYABORT;
-
-
- yydestruct ("Error: popping",
- yystos[yystate], yyvsp, pc);
- YYPOPSTACK (1);
- yystate = *yyssp;
- YY_STACK_PRINT (yyss, yyssp);
- }
-
- YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
- *++yyvsp = yylval;
- YY_IGNORE_MAYBE_UNINITIALIZED_END
-
-
- /* Shift the error token. */
- YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
-
- yystate = yyn;
- goto yynewstate;
-
-
-/*-------------------------------------.
-| yyacceptlab -- YYACCEPT comes here. |
-`-------------------------------------*/
-yyacceptlab:
- yyresult = 0;
- goto yyreturn;
-
-/*-----------------------------------.
-| yyabortlab -- YYABORT comes here. |
-`-----------------------------------*/
-yyabortlab:
- yyresult = 1;
- goto yyreturn;
-
-#if !defined yyoverflow || YYERROR_VERBOSE
-/*-------------------------------------------------.
-| yyexhaustedlab -- memory exhaustion comes here. |
-`-------------------------------------------------*/
-yyexhaustedlab:
- yyerror (pc, YY_("memory exhausted"));
- yyresult = 2;
- /* Fall through. */
-#endif
-
-yyreturn:
- if (yychar != YYEMPTY)
- {
- /* Make sure we have latest lookahead translation. See comments at
- user semantic actions for why this is necessary. */
- yytoken = YYTRANSLATE (yychar);
- yydestruct ("Cleanup: discarding lookahead",
- yytoken, &yylval, pc);
- }
- /* Do not reclaim the symbols of the rule which action triggered
- this YYABORT or YYACCEPT. */
- YYPOPSTACK (yylen);
- YY_STACK_PRINT (yyss, yyssp);
- while (yyssp != yyss)
- {
- yydestruct ("Cleanup: popping",
- yystos[*yyssp], yyvsp, pc);
- YYPOPSTACK (1);
- }
-#ifndef yyoverflow
- if (yyss != yyssa)
- YYSTACK_FREE (yyss);
-#endif
-#if YYERROR_VERBOSE
- if (yymsg != yymsgbuf)
- YYSTACK_FREE (yymsg);
-#endif
- /* Make sure YYID is used. */
- return YYID (yyresult);
-}
-
-
-/* Line 2055 of yacc.c */
-#line 964 "hwclock-date.y"
-
-
-static table const meridian_table[] =
-{
- { "AM", tMERIDIAN, MERam },
- { "A.M.", tMERIDIAN, MERam },
- { "PM", tMERIDIAN, MERpm },
- { "P.M.", tMERIDIAN, MERpm },
- { NULL, 0, 0 }
-};
-
-static table const dst_table[] =
-{
- { "DST", tDST, 0 }
-};
-
-static table const month_and_day_table[] =
-{
- { "JANUARY", tMONTH, 1 },
- { "FEBRUARY", tMONTH, 2 },
- { "MARCH", tMONTH, 3 },
- { "APRIL", tMONTH, 4 },
- { "MAY", tMONTH, 5 },
- { "JUNE", tMONTH, 6 },
- { "JULY", tMONTH, 7 },
- { "AUGUST", tMONTH, 8 },
- { "SEPTEMBER",tMONTH, 9 },
- { "SEPT", tMONTH, 9 },
- { "OCTOBER", tMONTH, 10 },
- { "NOVEMBER", tMONTH, 11 },
- { "DECEMBER", tMONTH, 12 },
- { "SUNDAY", tDAY, 0 },
- { "MONDAY", tDAY, 1 },
- { "TUESDAY", tDAY, 2 },
- { "TUES", tDAY, 2 },
- { "WEDNESDAY",tDAY, 3 },
- { "WEDNES", tDAY, 3 },
- { "THURSDAY", tDAY, 4 },
- { "THUR", tDAY, 4 },
- { "THURS", tDAY, 4 },
- { "FRIDAY", tDAY, 5 },
- { "SATURDAY", tDAY, 6 },
- { NULL, 0, 0 }
-};
-
-static table const time_units_table[] =
-{
- { "YEAR", tYEAR_UNIT, 1 },
- { "MONTH", tMONTH_UNIT, 1 },
- { "FORTNIGHT",tDAY_UNIT, 14 },
- { "WEEK", tDAY_UNIT, 7 },
- { "DAY", tDAY_UNIT, 1 },
- { "HOUR", tHOUR_UNIT, 1 },
- { "MINUTE", tMINUTE_UNIT, 1 },
- { "MIN", tMINUTE_UNIT, 1 },
- { "SECOND", tSEC_UNIT, 1 },
- { "SEC", tSEC_UNIT, 1 },
- { NULL, 0, 0 }
-};
-
-/* Assorted relative-time words. */
-static table const relative_time_table[] =
-{
- { "TOMORROW", tDAY_SHIFT, 1 },
- { "YESTERDAY",tDAY_SHIFT, -1 },
- { "TODAY", tDAY_SHIFT, 0 },
- { "NOW", tDAY_SHIFT, 0 },
- { "LAST", tORDINAL, -1 },
- { "THIS", tORDINAL, 0 },
- { "NEXT", tORDINAL, 1 },
- { "FIRST", tORDINAL, 1 },
-/*{ "SECOND", tORDINAL, 2 }, */
- { "THIRD", tORDINAL, 3 },
- { "FOURTH", tORDINAL, 4 },
- { "FIFTH", tORDINAL, 5 },
- { "SIXTH", tORDINAL, 6 },
- { "SEVENTH", tORDINAL, 7 },
- { "EIGHTH", tORDINAL, 8 },
- { "NINTH", tORDINAL, 9 },
- { "TENTH", tORDINAL, 10 },
- { "ELEVENTH", tORDINAL, 11 },
- { "TWELFTH", tORDINAL, 12 },
- { "AGO", tAGO, -1 },
- { "HENCE", tAGO, 1 },
- { NULL, 0, 0 }
-};
-
-/* The universal time zone table. These labels can be used even for
- timestamps that would not otherwise be valid, e.g., GMT timestamps
- oin London during summer. */
-static table const universal_time_zone_table[] =
-{
- { "GMT", tZONE, HOUR ( 0) }, /* Greenwich Mean */
- { "UT", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */
- { "UTC", tZONE, HOUR ( 0) },
- { NULL, 0, 0 }
-};
-
-/* The time zone table. This table is necessarily incomplete, as time
- zone abbreviations are ambiguous; e.g. Australians interpret "EST"
- as Eastern time in Australia, not as US Eastern Standard Time.
- You cannot rely on parse_datetime to handle arbitrary time zone
- abbreviations; use numeric abbreviations like "-0500" instead. */
-static table const time_zone_table[] =
-{
- { "WET", tZONE, HOUR ( 0) }, /* Western European */
- { "WEST", tDAYZONE, HOUR ( 0) }, /* Western European Summer */
- { "BST", tDAYZONE, HOUR ( 0) }, /* British Summer */
- { "ART", tZONE, -HOUR ( 3) }, /* Argentina */
- { "BRT", tZONE, -HOUR ( 3) }, /* Brazil */
- { "BRST", tDAYZONE, -HOUR ( 3) }, /* Brazil Summer */
- { "NST", tZONE, -(HOUR ( 3) + 30) }, /* Newfoundland Standard */
- { "NDT", tDAYZONE,-(HOUR ( 3) + 30) }, /* Newfoundland Daylight */
- { "AST", tZONE, -HOUR ( 4) }, /* Atlantic Standard */
- { "ADT", tDAYZONE, -HOUR ( 4) }, /* Atlantic Daylight */
- { "CLT", tZONE, -HOUR ( 4) }, /* Chile */
- { "CLST", tDAYZONE, -HOUR ( 4) }, /* Chile Summer */
- { "EST", tZONE, -HOUR ( 5) }, /* Eastern Standard */
- { "EDT", tDAYZONE, -HOUR ( 5) }, /* Eastern Daylight */
- { "CST", tZONE, -HOUR ( 6) }, /* Central Standard */
- { "CDT", tDAYZONE, -HOUR ( 6) }, /* Central Daylight */
- { "MST", tZONE, -HOUR ( 7) }, /* Mountain Standard */
- { "MDT", tDAYZONE, -HOUR ( 7) }, /* Mountain Daylight */
- { "PST", tZONE, -HOUR ( 8) }, /* Pacific Standard */
- { "PDT", tDAYZONE, -HOUR ( 8) }, /* Pacific Daylight */
- { "AKST", tZONE, -HOUR ( 9) }, /* Alaska Standard */
- { "AKDT", tDAYZONE, -HOUR ( 9) }, /* Alaska Daylight */
- { "HST", tZONE, -HOUR (10) }, /* Hawaii Standard */
- { "HAST", tZONE, -HOUR (10) }, /* Hawaii-Aleutian Standard */
- { "HADT", tDAYZONE, -HOUR (10) }, /* Hawaii-Aleutian Daylight */
- { "SST", tZONE, -HOUR (12) }, /* Samoa Standard */
- { "WAT", tZONE, HOUR ( 1) }, /* West Africa */
- { "CET", tZONE, HOUR ( 1) }, /* Central European */
- { "CEST", tDAYZONE, HOUR ( 1) }, /* Central European Summer */
- { "MET", tZONE, HOUR ( 1) }, /* Middle European */
- { "MEZ", tZONE, HOUR ( 1) }, /* Middle European */
- { "MEST", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */
- { "MESZ", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */
- { "EET", tZONE, HOUR ( 2) }, /* Eastern European */
- { "EEST", tDAYZONE, HOUR ( 2) }, /* Eastern European Summer */
- { "CAT", tZONE, HOUR ( 2) }, /* Central Africa */
- { "SAST", tZONE, HOUR ( 2) }, /* South Africa Standard */
- { "EAT", tZONE, HOUR ( 3) }, /* East Africa */
- { "MSK", tZONE, HOUR ( 3) }, /* Moscow */
- { "MSD", tDAYZONE, HOUR ( 3) }, /* Moscow Daylight */
- { "IST", tZONE, (HOUR ( 5) + 30) }, /* India Standard */
- { "SGT", tZONE, HOUR ( 8) }, /* Singapore */
- { "KST", tZONE, HOUR ( 9) }, /* Korea Standard */
- { "JST", tZONE, HOUR ( 9) }, /* Japan Standard */
- { "GST", tZONE, HOUR (10) }, /* Guam Standard */
- { "NZST", tZONE, HOUR (12) }, /* New Zealand Standard */
- { "NZDT", tDAYZONE, HOUR (12) }, /* New Zealand Daylight */
- { NULL, 0, 0 }
-};
-
-/* Military time zone table.
-
- Note 'T' is a special case, as it is used as the separator in ISO
- 8601 date and time of day representation. */
-static table const military_table[] =
-{
- { "A", tZONE, -HOUR ( 1) },
- { "B", tZONE, -HOUR ( 2) },
- { "C", tZONE, -HOUR ( 3) },
- { "D", tZONE, -HOUR ( 4) },
- { "E", tZONE, -HOUR ( 5) },
- { "F", tZONE, -HOUR ( 6) },
- { "G", tZONE, -HOUR ( 7) },
- { "H", tZONE, -HOUR ( 8) },
- { "I", tZONE, -HOUR ( 9) },
- { "K", tZONE, -HOUR (10) },
- { "L", tZONE, -HOUR (11) },
- { "M", tZONE, -HOUR (12) },
- { "N", tZONE, HOUR ( 1) },
- { "O", tZONE, HOUR ( 2) },
- { "P", tZONE, HOUR ( 3) },
- { "Q", tZONE, HOUR ( 4) },
- { "R", tZONE, HOUR ( 5) },
- { "S", tZONE, HOUR ( 6) },
- { "T", 'T', 0 },
- { "U", tZONE, HOUR ( 8) },
- { "V", tZONE, HOUR ( 9) },
- { "W", tZONE, HOUR (10) },
- { "X", tZONE, HOUR (11) },
- { "Y", tZONE, HOUR (12) },
- { "Z", tZONE, HOUR ( 0) },
- { NULL, 0, 0 }
-};
-
-\f
-
-/* Convert a time zone expressed as HH:MM into an integer count of
- minutes. If MM is negative, then S is of the form HHMM and needs
- to be picked apart; otherwise, S is of the form HH. As specified in
- http://www.opengroup.org/susv3xbd/xbd_chap08.html#tag_08_03, allow
- only valid TZ range, and consider first two digits as hours, if no
- minutes specified. */
-
-static long int
-time_zone_hhmm (parser_control *pc, textint s, long int mm)
-{
- long int n_minutes;
-
- /* If the length of S is 1 or 2 and no minutes are specified,
- interpret it as a number of hours. */
- if (s.digits <= 2 && mm < 0)
- s.value *= 100;
-
- if (mm < 0)
- n_minutes = (s.value / 100) * 60 + s.value % 100;
- else
- n_minutes = s.value * 60 + (s.negative ? -mm : mm);
-
- /* If the absolute number of minutes is larger than 24 hours,
- arrange to reject it by incrementing pc->zones_seen. Thus,
- we allow only values in the range UTC-24:00 to UTC+24:00. */
- if (24 * 60 < abs (n_minutes))
- pc->zones_seen++;
-
- return n_minutes;
-}
-
-static int
-to_hour (long int hours, int meridian)
-{
- switch (meridian)
- {
- default: /* Pacify GCC. */
- case MER24:
- return 0 <= hours && hours < 24 ? hours : -1;
- case MERam:
- return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
- case MERpm:
- return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
- }
-}
-
-static long int
-to_year (textint textyear, int debug)
-{
- long int year = textyear.value;
-
- if (year < 0)
- year = -year;
-
- /* XPG4 suggests that years 00-68 map to 2000-2068, and
- years 69-99 map to 1969-1999. */
- else if (textyear.digits == 2)
- {
- year += year < 69 ? 2000 : 1900;
- if (debug)
- dbg_printf (_("warning: adjusting year value %ld to %ld\n"),
- textyear.value, year);
- }
-
- return year;
-}
-
-static table const *
-lookup_zone (parser_control const *pc, char const *name)
-{
- table const *tp;
-
- for (tp = universal_time_zone_table; tp->name; tp++)
- if (strcmp (name, tp->name) == 0)
- return tp;
-
- /* Try local zone abbreviations before those in time_zone_table, as
- the local ones are more likely to be right. */
- for (tp = pc->local_time_zone_table; tp->name; tp++)
- if (strcmp (name, tp->name) == 0)
- return tp;
-
- for (tp = time_zone_table; tp->name; tp++)
- if (strcmp (name, tp->name) == 0)
- return tp;
-
- return NULL;
-}
-
-#if ! HAVE_TM_GMTOFF
-/* Yield the difference between *A and *B,
- measured in seconds, ignoring leap seconds.
- The body of this function is taken directly from the GNU C Library;
- see src/strftime.c. */
-static long int
-tm_diff (struct tm const *a, struct tm const *b)
-{
- /* Compute intervening leap days correctly even if year is negative.
- Take care to avoid int overflow in leap day calculations. */
- int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
- int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
- int a100 = a4 / 25 - (a4 % 25 < 0);
- int b100 = b4 / 25 - (b4 % 25 < 0);
- int a400 = SHR (a100, 2);
- int b400 = SHR (b100, 2);
- int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
- long int ayear = a->tm_year;
- long int years = ayear - b->tm_year;
- long int days = (365 * years + intervening_leap_days
- + (a->tm_yday - b->tm_yday));
- return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
- + (a->tm_min - b->tm_min))
- + (a->tm_sec - b->tm_sec));
-}
-#endif /* ! HAVE_TM_GMTOFF */
-
-static table const *
-lookup_word (parser_control const *pc, char *word)
-{
- char *p;
- char *q;
- size_t wordlen;
- table const *tp;
- int period_found;
- int abbrev;
-
- /* Make it uppercase. */
- for (p = word; *p; p++)
- {
- unsigned char ch = *p;
- *p = c_toupper (ch);
- }
-
- for (tp = meridian_table; tp->name; tp++)
- if (strcmp (word, tp->name) == 0)
- return tp;
-
- /* See if we have an abbreviation for a month. */
- wordlen = strlen (word);
- abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');
-
- for (tp = month_and_day_table; tp->name; tp++)
- if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
- return tp;
-
- if ((tp = lookup_zone (pc, word)))
- return tp;
-
- if (strcmp (word, dst_table[0].name) == 0)
- return dst_table;
-
- for (tp = time_units_table; tp->name; tp++)
- if (strcmp (word, tp->name) == 0)
- return tp;
-
- /* Strip off any plural and try the units table again. */
- if (word[wordlen - 1] == 'S')
- {
- word[wordlen - 1] = '\0';
- for (tp = time_units_table; tp->name; tp++)
- if (strcmp (word, tp->name) == 0)
- return tp;
- word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */
- }
-
- for (tp = relative_time_table; tp->name; tp++)
- if (strcmp (word, tp->name) == 0)
- return tp;
-
- /* Military time zones. */
- if (wordlen == 1)
- for (tp = military_table; tp->name; tp++)
- if (word[0] == tp->name[0])
- return tp;
-
- /* Drop out any periods and try the time zone table again. */
- for (period_found = 0, p = q = word; (*p = *q); q++)
- if (*q == '.')
- period_found = 1;
- else
- p++;
- if (period_found && (tp = lookup_zone (pc, word)))
- return tp;
-
- return NULL;
-}
-
-static int
-yylex (union YYSTYPE *lvalp, parser_control *pc)
-{
- unsigned char c;
- size_t count;
-
- for (;;)
- {
- while (c = *pc->input, c_isspace (c))
- pc->input++;
-
- if (ISDIGIT (c) || c == '-' || c == '+')
- {
- char const *p;
- int sign;
- unsigned long int value;
- if (c == '-' || c == '+')
- {
- sign = c == '-' ? -1 : 1;
- while (c = *++pc->input, c_isspace (c))
- continue;
- if (! ISDIGIT (c))
- /* skip the '-' sign */
- continue;
- }
- else
- sign = 0;
- p = pc->input;
- for (value = 0; ; value *= 10)
- {
- unsigned long int value1 = value + (c - '0');
- if (value1 < value)
- return '?';
- value = value1;
- c = *++p;
- if (! ISDIGIT (c))
- break;
- if (ULONG_MAX / 10 < value)
- return '?';
- }
- if ((c == '.' || c == ',') && ISDIGIT (p[1]))
- {
- time_t s;
- int ns;
- int digits;
- unsigned long int value1;
-
- /* Check for overflow when converting value to time_t. */
- if (sign < 0)
- {
- s = - value;
- if (0 < s)
- return '?';
- value1 = -s;
- }
- else
- {
- s = value;
- if (s < 0)
- return '?';
- value1 = s;
- }
- if (value != value1)
- return '?';
-
- /* Accumulate fraction, to ns precision. */
- p++;
- ns = *p++ - '0';
- for (digits = 2; digits <= LOG10_BILLION; digits++)
- {
- ns *= 10;
- if (ISDIGIT (*p))
- ns += *p++ - '0';
- }
-
- /* Skip excess digits, truncating toward -Infinity. */
- if (sign < 0)
- for (; ISDIGIT (*p); p++)
- if (*p != '0')
- {
- ns++;
- break;
- }
- while (ISDIGIT (*p))
- p++;
-
- /* Adjust to the timespec convention, which is that
- tv_nsec is always a positive offset even if tv_sec is
- negative. */
- if (sign < 0 && ns)
- {
- s--;
- if (! (s < 0))
- return '?';
- ns = BILLION - ns;
- }
-
- lvalp->timespec.tv_sec = s;
- lvalp->timespec.tv_nsec = ns;
- pc->input = p;
- return sign ? tSDECIMAL_NUMBER : tUDECIMAL_NUMBER;
- }
- else
- {
- lvalp->textintval.negative = sign < 0;
- if (sign < 0)
- {
- lvalp->textintval.value = - value;
- if (0 < lvalp->textintval.value)
- return '?';
- }
- else
- {
- lvalp->textintval.value = value;
- if (lvalp->textintval.value < 0)
- return '?';
- }
- lvalp->textintval.digits = p - pc->input;
- pc->input = p;
- return sign ? tSNUMBER : tUNUMBER;
- }
- }
-
- if (c_isalpha (c))
- {
- char buff[20];
- char *p = buff;
- table const *tp;
-
- do
- {
- if (p < buff + sizeof buff - 1)
- *p++ = c;
- c = *++pc->input;
- }
- while (c_isalpha (c) || c == '.');
-
- *p = '\0';
- tp = lookup_word (pc, buff);
- if (! tp)
- {
- if (pc->parse_datetime_debug)
- dbg_printf (_("error: unknown word '%s'\n"), buff);
- return '?';
- }
- lvalp->intval = tp->value;
- return tp->type;
- }
-
- if (c != '(')
- return to_uchar (*pc->input++);
-
- count = 0;
- do
- {
- c = *pc->input++;
- if (c == '\0')
- return c;
- if (c == '(')
- count++;
- else if (c == ')')
- count--;
- }
- while (count != 0);
- }
-}
-
-/* Do nothing if the parser reports an error. */
-static int
-yyerror (parser_control const *pc __attribute__((__unused__)),
- char const *s __attribute__((__unused__)))
-{
- return 0;
-}
-
-/* If *TM0 is the old and *TM1 is the new value of a struct tm after
- passing it to mktime, return 1 if it's OK that mktime returned T.
- It's not OK if *TM0 has out-of-range members. */
-
-static int
-mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t)
-{
- if (t == (time_t) -1)
- {
- /* Guard against falsely reporting an error when parsing a
- timestamp that happens to equal (time_t) -1, on a host that
- supports such a timestamp. */
- tm1 = localtime (&t);
- if (!tm1)
- return 0;
- }
-
- return ! ((tm0->tm_sec ^ tm1->tm_sec)
- | (tm0->tm_min ^ tm1->tm_min)
- | (tm0->tm_hour ^ tm1->tm_hour)
- | (tm0->tm_mday ^ tm1->tm_mday)
- | (tm0->tm_mon ^ tm1->tm_mon)
- | (tm0->tm_year ^ tm1->tm_year));
-}
-
-/* A reasonable upper bound for the size of ordinary TZ strings.
- Use heap allocation if TZ's length exceeds this. */
-enum { TZBUFSIZE = 100 };
-
-/* A reasonable upper bound for the buffer used in debug print outs.
- see days_to_name(), debug_strftime() and debug_mktime_not_ok() */
-enum { DBGBUFSIZE = 100 };
-
-/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated
- otherwise. */
-static char *
-get_tz (char tzbuf[TZBUFSIZE])
-{
- char *tz = getenv ("TZ");
- if (tz)
- {
- size_t tzsize = strlen (tz) + 1;
- tz = (tzsize <= TZBUFSIZE
- ? memcpy (tzbuf, tz, tzsize)
- : xstrdup (tz));
- }
- return tz;
-}
-
-/* debugging: format a 'struct tm' into a buffer, taking the parser's
- timezone information into account (if pc!=NULL). */
-static const char*
-debug_strfdatetime (const struct tm *tm, const parser_control *pc,
- char* /*output*/ buf, size_t n)
-{
- /* TODO:
- 1. find an optimal way to print date string in a clear and unambiguous
- format. Currently, always add '(Y-M-D)' prefix.
- Consider '2016y01m10d' or 'year(2016) month(01) day(10)'.
-
- If the user needs debug printing, it means he/she already having
- issues with the parsing - better to avoid formats that could
- be mis-interpreted (e.g. just YYYY-MM-DD).
-
- 2. Can strftime be used instead?
- depends if it is portable and can print invalid dates on all systems.
-
- 3. Print timezone information ?
-
- 4. Print DST information ?
-
- 5. Print nanosecond information ?
-
- NOTE:
- Printed date/time values might not be valid, e.g. '2016-02-31'
- or '2016-19-2016' . These are the values as parsed from the user
- string, before validation.
- */
- int m = strftime (buf, n, "(Y-M-D) %Y-%m-%d %H:%M:%S", tm);
-
- /* if parser_control information was provided (for timezone),
- and there's enough space in the buffer - add timezone info */
- if (pc != NULL && ((n-m)>0))
- {
- long int tz = (pc->zones_seen)
- ? pc->time_zone
- : pc->debug_default_input_timezone;
-
- /* Account for DST if tLOCAL_ZONE was seen */
- if (pc->local_zones_seen && !pc->zones_seen && pc->local_isdst==1)
- tz += 60;
-
- snprintf (&buf[m],n-m," TZ=%+03d:%02d", (int)(tz/60), abs ((int)tz)%60);
- }
- return buf;
-}
-
-static const char*
-debug_strfdate (const struct tm *tm, char* /*output*/ buf, size_t n)
-{
- snprintf (buf,n,"(Y-M-D) %04d-%02d-%02d",
- tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
- return buf;
-}
-
-static const char*
-debug_strftime (const struct tm *tm, char* /*output*/ buf, size_t n)
-{
- snprintf (buf,n,"%02d:%02d:%02d", tm->tm_hour, tm->tm_min, tm->tm_sec);
- return buf;
-}
-
-/* If 'mktime_ok()' failed, display the failed time values,
- and provide possible hints. Example output:
-
- date: error: invalid date/time value:
- date: user provided time: '(Y-M-D) 2006-04-02 02:45:00'
- date: normalized time: '(Y-M-D) 2006-04-02 03:45:00'
- date: __
- date: possible reasons:
- date: non-existing due to daylight-saving time;
- date: numeric values overflow;
- date: missing timezone;
- */
-static void
-debug_mktime_not_ok (struct tm const *tm0, struct tm const *tm1,
- const parser_control *pc, int time_zone_seen)
-{
- /* TODO: handle t==-1 (as in 'mktime_ok') */
- char tmp[DBGBUFSIZE];
- int i;
- const int eq_sec = (tm0->tm_sec == tm1->tm_sec);
- const int eq_min = (tm0->tm_min == tm1->tm_min);
- const int eq_hour = (tm0->tm_hour == tm1->tm_hour);
- const int eq_mday = (tm0->tm_mday == tm1->tm_mday);
- const int eq_month = (tm0->tm_mon == tm1->tm_mon);
- const int eq_year = (tm0->tm_year == tm1->tm_year);
-
- const int dst_shift = eq_sec && eq_min && !eq_hour
- && eq_mday && eq_month && eq_year;
-
- if (!pc->parse_datetime_debug)
- return;
-
- dbg_printf (_("error: invalid date/time value:\n"));
- dbg_printf (_(" user provided time: '%s'\n"),
- debug_strfdatetime (tm0, pc, tmp, sizeof (tmp)));
- dbg_printf (_(" normalized time: '%s'\n"),
- debug_strfdatetime (tm1, pc, tmp, sizeof (tmp)));
- /* NOTEs: the format must be aligned with debug_strfdatetime() and the two
- DEBUG statements above. this string is not translated. */
- i = snprintf (tmp, sizeof(tmp),
- " %4s %2s %2s %2s %2s %2s",
- eq_year?"":"----", eq_month?"":"--", eq_mday?"":"--",
- eq_hour?"":"--", eq_min?"":"--", eq_sec?"":"--");
- /* Trim trailing whitespace */
- if ((i>0) && ((unsigned)i<sizeof(tmp)))
- {
- while ((i>0) && (tmp[i-1]==' '))
- --i;
- tmp[i] = '\0';
- }
- dbg_printf ("%s\n", tmp);
-
- dbg_printf (_(" possible reasons:\n"));
- if (dst_shift)
- dbg_printf (_(" non-existing due to daylight-saving time;\n"));
- if (!eq_mday && !eq_month)
- dbg_printf (_(" invalid day/month combination;\n"));
- dbg_printf (_(" numeric values overflow;\n"));
- dbg_printf (" %s\n",time_zone_seen?_("incorrect timezone")
- :_("missing timezone"));
-}
-
-
-/* Returns the effective local timezone, in minutes. */
-static long int
-get_effective_timezone (void)
-{
- /* TODO: check for failures */
- const time_t z = 0;
- time_t lz ;
- struct tm *ltm;
- ltm = localtime (&z);
- lz = timegm (ltm)/60;
- return (long int)lz;
-}
-
-/* The original interface: run with debug=0 */
-int
-parse_datetime (struct timespec *result, char const *p,
- struct timespec const *now)
-{
- return parse_datetime2 (result, p, now, 0);
-}
-
-/* Parse a date/time string, storing the resulting time value into *RESULT.
- The string itself is pointed to by P. Return 1 if successful.
- P can be an incomplete or relative time specification; if so, use
- *NOW as the basis for the returned time. */
-int
-parse_datetime2 (struct timespec *result, char const *p,
- struct timespec const *now, unsigned int flags)
-{
- time_t Start;
- long int Start_ns;
- struct tm const *tmp;
- struct tm tm;
- struct tm tm0;
- parser_control pc;
- struct timespec gettime_buffer;
- unsigned char c;
- int tz_was_altered = 0;
- char *tz0 = NULL;
- char tz0buf[TZBUFSIZE];
- int ok = 1;
- char dbg_ord[DBGBUFSIZE];
- char dbg_tm[DBGBUFSIZE];
- char const *input_sentinel = p + strlen (p);
- struct timeval tv;
-
- if (! now)
- {
- gettimeofday (&tv, NULL);
- gettime_buffer.tv_sec = tv.tv_sec;
- gettime_buffer.tv_nsec = tv.tv_usec * 1000;
- now = &gettime_buffer;
- }
-
- Start = now->tv_sec;
- Start_ns = now->tv_nsec;
-
- tmp = localtime (&now->tv_sec);
- if (! tmp)
- return 0;
-
- while (c = *p, c_isspace (c))
- p++;
-
- if (strncmp (p, "TZ=\"", 4) == 0)
- {
- char const *tzbase = p + 4;
- size_t tzsize = 1;
- char const *s;
-
- for (s = tzbase; *s; s++, tzsize++)
- if (*s == '\\')
- {
- s++;
- if (! (*s == '\\' || *s == '"'))
- break;
- }
- else if (*s == '"')
- {
- char *z;
- char *tz1;
- char tz1buf[TZBUFSIZE];
- int large_tz = TZBUFSIZE < tzsize;
- int setenv_ok;
- tz0 = get_tz (tz0buf);
- z = tz1 = large_tz ? malloc (tzsize) : tz1buf;
- for (s = tzbase; *s != '"'; s++)
- *z++ = *(s += *s == '\\');
- *z = '\0';
- setenv_ok = setenv ("TZ", tz1, 1) == 0;
- if (large_tz)
- free (tz1);
- if (!setenv_ok)
- goto fail;
- tz_was_altered = 1;
-
- p = s + 1;
- while (c = *p, c_isspace (c))
- p++;
-
- break;
- }
- }
-
- /* As documented, be careful to treat the empty string just like
- a date string of "0". Without this, an empty string would be
- declared invalid when parsed during a DST transition. */
- if (*p == '\0')
- p = "0";
-
- pc.input = p;
- pc.year.value = tmp->tm_year;
- pc.year.value += TM_YEAR_BASE;
- pc.year.digits = 0;
- pc.month = tmp->tm_mon + 1;
- pc.day = tmp->tm_mday;
- pc.hour = tmp->tm_hour;
- pc.minutes = tmp->tm_min;
- pc.seconds.tv_sec = tmp->tm_sec;
- pc.seconds.tv_nsec = Start_ns;
- tm.tm_isdst = tmp->tm_isdst;
-
- pc.meridian = MER24;
- pc.rel = RELATIVE_TIME_0;
- pc.timespec_seen = 0;
- pc.rels_seen = 0;
- pc.dates_seen = 0;
- pc.days_seen = 0;
- pc.times_seen = 0;
- pc.local_zones_seen = 0;
- pc.dsts_seen = 0;
- pc.zones_seen = 0;
- pc.year_seen = 0;
- pc.parse_datetime_debug = (flags & PARSE_DATETIME_DEBUG)!=0;
- pc.debug_dates_seen = 0;
- pc.debug_days_seen = 0;
- pc.debug_times_seen = 0;
- pc.debug_local_zones_seen = 0;
- pc.debug_dsts_seen = 0;
- pc.debug_zones_seen = 0;
- pc.debug_year_seen = 0;
- pc.debug_ordinal_day_seen = 0;
- pc.debug_default_input_timezone = 0;
-
-#if HAVE_STRUCT_TM_TM_ZONE
- pc.local_time_zone_table[0].name = tmp->tm_zone;
- pc.local_time_zone_table[0].type = tLOCAL_ZONE;
- pc.local_time_zone_table[0].value = tmp->tm_isdst;
- pc.local_time_zone_table[1].name = NULL;
-
- /* Probe the names used in the next three calendar quarters, looking
- for a tm_isdst different from the one we already have. */
- {
- int quarter;
- for (quarter = 1; quarter <= 3; quarter++)
- {
- time_t probe = Start + quarter * (90 * 24 * 60 * 60);
- struct tm const *probe_tm = localtime (&probe);
- if (probe_tm && probe_tm->tm_zone
- && probe_tm->tm_isdst != pc.local_time_zone_table[0].value)
- {
- {
- pc.local_time_zone_table[1].name = probe_tm->tm_zone;
- pc.local_time_zone_table[1].type = tLOCAL_ZONE;
- pc.local_time_zone_table[1].value = probe_tm->tm_isdst;
- pc.local_time_zone_table[2].name = NULL;
- }
- break;
- }
- }
- }
-#else
-#if HAVE_TZNAME
- {
-# if !HAVE_DECL_TZNAME
- extern char *tzname[];
-# endif
- int i;
- for (i = 0; i < 2; i++)
- {
- pc.local_time_zone_table[i].name = tzname[i];
- pc.local_time_zone_table[i].type = tLOCAL_ZONE;
- pc.local_time_zone_table[i].value = i;
- }
- pc.local_time_zone_table[i].name = NULL;
- }
-#else
- pc.local_time_zone_table[0].name = NULL;
-#endif
-#endif
-
- if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name
- && ! strcmp (pc.local_time_zone_table[0].name,
- pc.local_time_zone_table[1].name))
- {
- /* This locale uses the same abbreviation for standard and
- daylight times. So if we see that abbreviation, we don't
- know whether it's daylight time. */
- pc.local_time_zone_table[0].value = -1;
- pc.local_time_zone_table[1].name = NULL;
- }
-
- pc.debug_default_input_timezone = get_effective_timezone ();
-
- if (yyparse (&pc) != 0)
- {
- if (pc.parse_datetime_debug)
- {
- if (input_sentinel <= pc.input)
- dbg_printf (_("error: parsing failed\n"), pc.input);
- else
- {
- dbg_printf (_("error: parsing failed, stopped at '%s'\n"),
- pc.input);
- }
- }
- goto fail;
- }
-
- /* determine effective timezone source */
- if (pc.parse_datetime_debug)
- {
- long int tz = pc.debug_default_input_timezone;
- const char* tz_env;
-
- if (pc.timespec_seen)
- {
- tz = 0 ;
- strncpy (dbg_tm, _("'@timespec' - always UTC0"), sizeof (dbg_tm)-1);
- }
- else if (pc.zones_seen)
- {
- tz = pc.time_zone;
- strncpy (dbg_tm, _("parsed date/time string"), sizeof (dbg_tm)-1);
- }
- else if ((tz_env = getenv("TZ")))
- {
- if (tz_was_altered)
- {
- snprintf (dbg_tm, sizeof(dbg_tm), _("TZ=\"%s\" in date string"),
- tz_env);
- }
- else if (STREQ(tz_env,"UTC0"))
- {
- /* Special case: using 'date -u' simply set TZ=UTC0 */
- strncpy (dbg_tm, _("TZ=UTC0 environment value or -u"),
- sizeof (dbg_tm)-1);
- }
- else
- {
- snprintf (dbg_tm, sizeof(dbg_tm),
- _("TZ=\"%s\" environment value"), tz_env);
- }
- }
- else
- {
- strncpy (dbg_tm, _("system default"), sizeof (dbg_tm)-1);
- }
-
- /* Ensure it's NUL terminated after strncpy */
- dbg_tm[sizeof (dbg_tm)-1] = '\0';
-
- /* Account for DST changes if tLOCAL_ZONE was seen.
- local timezone only changes DST and is relative to the
- default timezone.*/
- if (pc.local_zones_seen && !pc.zones_seen && pc.local_isdst==1)
- {
- tz += 60;
- strncat (dbg_tm, ", dst",
- sizeof (dbg_tm) - strlen (dbg_tm) - 1);
- }
-
- if (pc.parse_datetime_debug)
- dbg_printf (_("input timezone: %+03d:%02d (set from %s)\n"),
- (int)(tz/60), abs ((int)tz)%60, dbg_tm);
-
- }
-
- if (pc.timespec_seen)
- *result = pc.seconds;
- else
- {
- if (1 < (pc.times_seen | pc.dates_seen | pc.days_seen | pc.dsts_seen
- | (pc.local_zones_seen + pc.zones_seen)))
- {
- if (pc.parse_datetime_debug)
- {
- if (pc.times_seen > 1)
- dbg_printf ("error: seen multiple time parts\n");
- if (pc.dates_seen > 1)
- dbg_printf ("error: seen multiple date parts\n");
- if (pc.days_seen > 1)
- dbg_printf ("error: seen multiple days parts\n");
- if (pc.dsts_seen > 1)
- dbg_printf ("error: seen multiple daylight-saving parts\n");
- if ( (pc.local_zones_seen + pc.zones_seen) > 1)
- dbg_printf ("error: seen multiple time-zone parts\n");
- }
- goto fail;
- }
-
- tm.tm_year = to_year (pc.year, pc.parse_datetime_debug) - TM_YEAR_BASE;
- tm.tm_mon = pc.month - 1;
- tm.tm_mday = pc.day;
- if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen))
- {
- tm.tm_hour = to_hour (pc.hour, pc.meridian);
- if (tm.tm_hour < 0)
- {
- const char* mrd = (pc.meridian==MERam)?"am":
- (pc.meridian==MERpm)?"pm":"";
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: invalid hour %ld%s\n"), pc.hour, mrd);
-
- goto fail;
- }
- tm.tm_min = pc.minutes;
- tm.tm_sec = pc.seconds.tv_sec;
- if (pc.parse_datetime_debug)
- dbg_printf (_("using %s time as starting value: '%s'\n"),
- (pc.times_seen)?_("specified"):_("current"),
- debug_strftime (&tm,dbg_tm,sizeof (dbg_tm)));
- }
- else
- {
- tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
- pc.seconds.tv_nsec = 0;
- if (pc.parse_datetime_debug)
- dbg_printf ("warning: using midnight as starting time: 00:00:00\n");
- }
-
- /* Let mktime deduce tm_isdst if we have an absolute timestamp. */
- if (pc.dates_seen | pc.days_seen | pc.times_seen)
- tm.tm_isdst = -1;
-
- /* But if the input explicitly specifies local time with or without
- DST, give mktime that information. */
- if (pc.local_zones_seen)
- tm.tm_isdst = pc.local_isdst;
-
- tm0 = tm;
-
- Start = mktime (&tm);
-
- if (! mktime_ok (&tm0, &tm, Start))
- {
- if (! pc.zones_seen)
- {
- debug_mktime_not_ok (&tm0, &tm, &pc, pc.zones_seen);
-
- goto fail;
- }
- else
- {
- /* Guard against falsely reporting errors near the time_t
- boundaries when parsing times in other time zones. For
- example, suppose the input string "1969-12-31 23:00:00 -0100",
- the current time zone is 8 hours ahead of UTC, and the min
- time_t value is 1970-01-01 00:00:00 UTC. Then the min
- localtime value is 1970-01-01 08:00:00, and mktime will
- therefore fail on 1969-12-31 23:00:00. To work around the
- problem, set the time zone to 1 hour behind UTC temporarily
- by setting TZ="XXX1:00" and try mktime again. */
-
- long int time_zone = pc.time_zone;
- long int abs_time_zone = time_zone < 0 ? - time_zone : time_zone;
- long int abs_time_zone_hour = abs_time_zone / 60;
- int abs_time_zone_min = abs_time_zone % 60;
- char tz1buf[sizeof "XXX+0:00"
- + sizeof pc.time_zone * CHAR_BIT / 3];
- if (!tz_was_altered)
- tz0 = get_tz (tz0buf);
- sprintf (tz1buf, "XXX%s%ld:%02d", &"-"[time_zone < 0],
- abs_time_zone_hour, abs_time_zone_min);
- if (setenv ("TZ", tz1buf, 1) != 0)
- {
- /* TODO: was warn () + print errno? */
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: setenv('TZ','%s') failed\n"), tz1buf);
-
- goto fail;
- }
- tz_was_altered = 1;
- tm = tm0;
- Start = mktime (&tm);
- if (! mktime_ok (&tm0, &tm, Start))
- {
- debug_mktime_not_ok (&tm0, &tm, &pc, pc.zones_seen);
-
- goto fail;
- }
- }
- }
-
- if (pc.days_seen && ! pc.dates_seen)
- {
- tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7
- + 7 * (pc.day_ordinal
- - (0 < pc.day_ordinal
- && tm.tm_wday != pc.day_number)));
- tm.tm_isdst = -1;
- Start = mktime (&tm);
- if (Start == (time_t) -1)
- {
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: day '%s' (day ordinal=%ld number=%d) " \
- "resulted in an invalid date: '%s'\n"),
- str_days (&pc,dbg_ord,sizeof (dbg_ord)),
- pc.day_ordinal,pc.day_number,
- debug_strfdatetime (&tm, &pc, dbg_tm,
- sizeof (dbg_tm)));
-
- goto fail;
- }
-
- if (pc.parse_datetime_debug)
- dbg_printf (_("new start date: '%s' is '%s'\n"),
- str_days (&pc,dbg_ord,sizeof (dbg_ord)),
- debug_strfdatetime (&tm, &pc, dbg_tm,sizeof (dbg_tm)));
-
- }
-
- if (pc.parse_datetime_debug)
- {
- if (!pc.dates_seen && !pc.days_seen)
- dbg_printf (_("using current date as starting value: '%s'\n"),
- debug_strfdate (&tm,dbg_tm,sizeof (dbg_tm)));
-
- if (pc.days_seen && pc.dates_seen)
- dbg_printf (_("warning: day (%s) ignored when explicit dates " \
- "are given\n"),
- str_days (&pc,dbg_ord,sizeof (dbg_ord)));
-
- dbg_printf (_("starting date/time: '%s'\n"),
- debug_strfdatetime (&tm, &pc, dbg_tm,sizeof (dbg_tm)));
- }
-
- /* Add relative date. */
- if (pc.rel.year | pc.rel.month | pc.rel.day)
- {
- if (pc.parse_datetime_debug)
- {
- if ((pc.rel.year != 0 || pc.rel.month !=0) && tm.tm_mday!=15)
- dbg_printf (_("warning: when adding relative months/years, " \
- "it is recommended to specify the 15th of the " \
- "months\n"));
-
- if (pc.rel.day != 0 && tm.tm_hour!=12)
- dbg_printf (_("warning: when adding relative days, " \
- "it is recommended to specify 12:00pm\n"));
- }
-
- int year = tm.tm_year + pc.rel.year;
- int month = tm.tm_mon + pc.rel.month;
- int day = tm.tm_mday + pc.rel.day;
- if (((year < tm.tm_year) ^ (pc.rel.year < 0))
- | ((month < tm.tm_mon) ^ (pc.rel.month < 0))
- | ((day < tm.tm_mday) ^ (pc.rel.day < 0)))
- {
- /* TODO: what is the actual error? int-value wrap-around? */
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: %s:%d\n"), __FILE__,__LINE__);
-
- goto fail;
- }
- tm.tm_year = year;
- tm.tm_mon = month;
- tm.tm_mday = day;
- tm.tm_hour = tm0.tm_hour;
- tm.tm_min = tm0.tm_min;
- tm.tm_sec = tm0.tm_sec;
- tm.tm_isdst = tm0.tm_isdst;
- Start = mktime (&tm);
- if (Start == (time_t) -1)
- {
- if (pc.parse_datetime_debug)
- dbg_printf(_("error: adding relative date resulted " \
- "in an invalid date: '%s'\n"),
- debug_strfdatetime (&tm, &pc, dbg_tm,
- sizeof (dbg_tm)));
-
- goto fail;
- }
-
- if (pc.parse_datetime_debug)
- {
- dbg_printf (_("after date adjustment " \
- "(%+ld years, %+ld months, %+ld days),\n"),
- pc.rel.year, pc.rel.month, pc.rel.day);
- dbg_printf (_(" new date/time = '%s'\n"),
- debug_strfdatetime (&tm, &pc, dbg_tm,
- sizeof (dbg_tm)));
-
- /* warn about crossing DST due to time adjustment.
- Example: https://bugs.gnu.org/8357
- env TZ=Europe/Helsinki \
- date --debug \
- -d 'Mon Mar 28 00:36:07 2011 EEST 1 day ago'
-
- This case is different than DST changes due to time adjustment,
- i.e. "1 day ago" vs "24 hours ago" are calculated in different
- places.
-
- 'tm0.tm_isdst' contains the DST of the input date,
- 'tm.tm_isdst' is the normalized result after calling
- mktime(&tm).
- */
- if ((tm0.tm_isdst!=-1) && (tm.tm_isdst != tm0.tm_isdst))
- dbg_printf (_("warning: daylight saving time changed after " \
- "date adjustment\n"));
-
- /* warn if the user did not ask to adjust days but mday changed,
- or
- user did not ask to adjust months/days but the month changed.
-
- Example for first case:
- 2016-05-31 + 1 month => 2016-06-31 => 2016-07-01.
- User asked to adjust month, but the day changed from 31 to 01.
-
- Example for second case:
- 2016-02-29 + 1 year => 2017-02-29 => 2017-03-01.
- User asked to adjust year, but the month changed from 02 to 03.
- */
- if (((pc.rel.day==0) && (tm.tm_mday != day))
- || ((pc.rel.day==0) && (pc.rel.month==0)
- && (tm.tm_mon != month)))
- {
- dbg_printf (_("warning: month/year adjustment resulted in "\
- "shifted dates:\n"));
- dbg_printf (_(" adjusted Y M D: %04d %02d %02d\n"),
- year+1900, month+1, day);
- dbg_printf (_(" normalized Y M D: %04d %02d %02d\n"),
- tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
- }
- }
-
- }
-
- /* The only "output" of this if-block is an updated Start value,
- so this block must follow others that clobber Start. */
- if (pc.zones_seen)
- {
- long int delta = pc.time_zone * 60;
- time_t t1;
-#ifdef HAVE_TM_GMTOFF
- delta -= tm.tm_gmtoff;
-#else
- time_t t = Start;
- struct tm const *gmt = gmtime (&t);
- if (! gmt)
- {
- /* TODO: use 'warn(3)' + print errno ? */
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: gmtime failed for t=%ld\n"),t);
-
- goto fail;
- }
- delta -= tm_diff (&tm, gmt);
-#endif
- t1 = Start - delta;
- if ((Start < t1) != (delta < 0))
- {
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: timezone %ld caused time_t overflow\n"),
- pc.time_zone);
-
- goto fail; /* time_t overflow */
- }
- Start = t1;
- }
-
- if (pc.parse_datetime_debug)
- dbg_printf (_("'%s' = %ld epoch-seconds\n"),
- debug_strfdatetime (&tm, &pc, dbg_tm, sizeof (dbg_tm)),
- Start);
-
- /* Add relative hours, minutes, and seconds. On hosts that support
- leap seconds, ignore the possibility of leap seconds; e.g.,
- "+ 10 minutes" adds 600 seconds, even if one of them is a
- leap second. Typically this is not what the user wants, but it's
- too hard to do it the other way, because the time zone indicator
- must be applied before relative times, and if mktime is applied
- again the time zone will be lost. */
- {
- long int sum_ns = pc.seconds.tv_nsec + pc.rel.ns;
- long int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION;
- time_t t0 = Start;
- long int d1 = 60 * 60 * pc.rel.hour;
- time_t t1 = t0 + d1;
- long int d2 = 60 * pc.rel.minutes;
- time_t t2 = t1 + d2;
- time_t d3 = pc.rel.seconds;
- time_t t3 = t2 + d3;
- long int d4 = (sum_ns - normalized_ns) / BILLION;
- time_t t4 = t3 + d4;
- time_t t5 = t4;
-
- if ((d1 / (60 * 60) ^ pc.rel.hour)
- | (d2 / 60 ^ pc.rel.minutes)
- | ((t1 < t0) ^ (d1 < 0))
- | ((t2 < t1) ^ (d2 < 0))
- | ((t3 < t2) ^ (d3 < 0))
- | ((t4 < t3) ^ (d4 < 0))
- | (t5 != t4))
- {
- if (pc.parse_datetime_debug)
- dbg_printf (_("error: adding relative time caused an " \
- "overflow\n"));
-
- goto fail;
- }
-
- if (pc.parse_datetime_debug
- && (pc.rel.hour | pc.rel.minutes | pc.rel.seconds | pc.rel.ns))
- {
- dbg_printf (_("after time adjustment (%+ld hours, " \
- "%+ld minutes, %+ld seconds, %+ld ns),\n"),
- pc.rel.hour,pc.rel.minutes,pc.rel.seconds,pc.rel.ns);
- dbg_printf (_(" new time = %ld epoch-seconds\n"),t5);
-
- /* warn about crossing DST due to time adjustment.
- Example: https://bugs.gnu.org/8357
- env TZ=Europe/Helsinki \
- date --debug \
- -d 'Mon Mar 28 00:36:07 2011 EEST 24 hours ago'
-
- This case is different than DST changes due to days adjustment,
- i.e. "1 day ago" vs "24 hours ago" are calculated in different
- places.
-
- 'tm.tm_isdst' contains the date after date adjustment.
- */
- struct tm const *lmt = localtime (&t5);
- if ((tm.tm_isdst!=-1) && (tm.tm_isdst != lmt->tm_isdst))
- dbg_printf (_("warning: daylight saving time changed after " \
- "time adjustment\n"));
- }
-
- result->tv_sec = t5;
- result->tv_nsec = normalized_ns;
- }
- }
-
- goto done;
-
- fail:
- ok = 0;
- done:
- if (tz_was_altered)
- ok &= (tz0 ? setenv ("TZ", tz0, 1) : unsetenv ("TZ")) == 0;
- if (tz0 != tz0buf)
- free (tz0);
-
- if (ok && pc.parse_datetime_debug)
- {
- /* print local timezone AFTER restoring TZ (if tz_was_altered)*/
- const long int otz = get_effective_timezone ();
- const char* tz_src;
- const char* tz_env;
-
- if ((tz_env = getenv("TZ")))
- {
- /* Special case: using 'date -u' simply set TZ=UTC0 */
- if (STREQ(tz_env,"UTC0"))
- {
- tz_src = _("TZ=UTC0 environment value or -u");
- }
- else
- {
- snprintf (dbg_tm, sizeof(dbg_tm),
- _("TZ=\"%s\" environment value"), tz_env);
- tz_src = dbg_tm;
- }
- }
- else
- {
- tz_src = _("system default");
- }
-
- if (pc.parse_datetime_debug)
- {
- dbg_printf (_("output timezone: %+03d:%02d (set from %s)\n"),
- (int)(otz/60), abs ((int)otz)%60, tz_src);
-
-
- dbg_printf (_("final: %ld.%09ld (epoch-seconds)\n"),
- result->tv_sec,result->tv_nsec);
-
- struct tm const *gmt = gmtime (&result->tv_sec);
- dbg_printf (_("final: %s (UTC0)\n"),
- debug_strfdatetime (gmt, NULL, dbg_tm, sizeof (dbg_tm)));
- struct tm const *lmt = localtime (&result->tv_sec);
- dbg_printf (_("final: %s (output timezone TZ=%+03d:%02d)\n"),
- debug_strfdatetime (lmt, NULL, dbg_tm, sizeof (dbg_tm)),
- (int)(otz/60), abs ((int)otz)%60);
- }
- }
-
- return ok;
-}
-
-#if TEST
-
-int
-main (int ac, char **av)
-{
- char buff[BUFSIZ];
-
- printf ("Enter date, or blank line to exit.\n\t> ");
- fflush (stdout);
-
- buff[BUFSIZ - 1] = '\0';
- while (fgets (buff, BUFSIZ - 1, stdin) && buff[0])
- {
- struct timespec d;
- struct tm const *tm;
- if (! parse_datetime (&d, buff, NULL))
- printf ("Bad format - couldn't convert.\n");
- else if (! (tm = localtime (&d.tv_sec)))
- {
- long int sec = d.tv_sec;
- printf ("localtime (%ld) failed\n", sec);
- }
- else
- {
- int ns = d.tv_nsec;
- printf ("%04ld-%02d-%02d %02d:%02d:%02d.%09d\n",
- tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday,
- tm->tm_hour, tm->tm_min, tm->tm_sec, ns);
- }
- printf ("\t> ");
- fflush (stdout);
- }
- return 0;
-}
-#endif /* TEST */
diff --git a/sys-utils/hwclock.c b/sys-utils/hwclock.c
index 276a637..a38ccd2 100644
--- a/sys-utils/hwclock.c
+++ b/sys-utils/hwclock.c
@@ -83,6 +83,7 @@
#include "timeutils.h"
#include "env.h"
#include "xalloc.h"
+#include "parse-date.h"
#ifdef HAVE_LIBAUDIT
#include <libaudit.h>
diff --git a/sys-utils/hwclock.h b/sys-utils/hwclock.h
index e6f16d3..b08bd2d 100644
--- a/sys-utils/hwclock.h
+++ b/sys-utils/hwclock.h
@@ -82,14 +82,4 @@ extern int set_epoch_rtc(const struct hwclock_control *ctl);
extern void hwclock_exit(const struct hwclock_control *ctl, int status);
-/* date.c */
-int parse_datetime (struct timespec *, char const *, struct timespec const *);
-
-/* parse_datetime2 flag: if set, print debug/progress information to STDERR */
-#define PARSE_DATETIME_DEBUG 1
-
-/* same as above, supporting additional flags */
-int parse_datetime2 (struct timespec *, char const *, struct timespec const *,
- unsigned int flags);
-
#endif /* HWCLOCK_CLOCK_H */
--
2.9.3
^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [V2 0/4] hwclock: remove date(1)
2017-02-28 17:01 ` Assaf Gordon
@ 2017-03-04 21:57 ` J William Piggott
0 siblings, 0 replies; 11+ messages in thread
From: J William Piggott @ 2017-03-04 21:57 UTC (permalink / raw)
To: Assaf Gordon, Karel Zak; +Cc: util-linux
On 02/28/2017 12:01 PM, Assaf Gordon wrote:
>
> I might suggest doing away first with relative times, then perhaps
> with timezones.
>
> There are some confusing combinations, especially with relative times
> (e.g. "20170228 + 2 days" vs "20:45:45 + 2 days", the latter parsed
> as "8:45:45pm+02:00TZ + 1 day"),
>
> and then with all sorts of things that are taken as timezones (like
> "2017A" which is parsed as '8:17pm in timezone -01:00'.
Hello Assaf,
Because hwclock(8) was using date(1) to parse --date strings, it has
always be subject to these issues. Some time ago I added a warning not
to use relative times in hwclock.8. I just added a warning about
timezones as well.
I don't think blocking them from the parser is needed. They could be
useful to some other util-linux module.
>
> I'm happy to help with testing if needed.
Thank you very much Assaf.
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2017-03-04 21:57 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-02-25 18:25 [V2 0/4] hwclock: remove date(1) J William Piggott
2017-02-25 18:28 ` [V2 1/4] hwclock: use parse_datetime function J William Piggott
2017-02-25 18:30 ` [V2 2/4] build-system: add hwclock-date J William Piggott
2017-02-25 18:32 ` [V2 3/4] hwclock: add hwclock-date files J William Piggott
2017-02-25 18:33 ` [V2 4/4] hwclock: add sys-utils/hwclock-date.c J William Piggott
2017-02-28 13:37 ` [V2 0/4] hwclock: remove date(1) Karel Zak
2017-02-28 15:23 ` J William Piggott
2017-02-28 16:10 ` Karel Zak
2017-02-28 17:01 ` Assaf Gordon
2017-03-04 21:57 ` J William Piggott
2017-03-02 11:43 ` [PATCH] lib: add parse-date.y Karel Zak
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