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The parser now accepts the basic format for combined date and time
representations, which ommits the date and time separators, "-" and ":".

See bug 23767 for GNU coreutils, <https://savannah.gnu.org/bugs/?23767>.

* lib/parse-datetime.y: Parse combined date and time representations in
ISO 8601 basic format.
(set_hhmmss_iso_8601_basic_time) New function.
* tests/test-parse-datetime.c: Add new tests for combined date and time
representations in ISO 8601 basic format.
---
 lib/parse-datetime.y        |   78 +++++++++++++++++++++++++++++++++++++++++--
 tests/test-parse-datetime.c |   61 +++++++++++++++++++++++++++++++++
 2 files changed, 137 insertions(+), 2 deletions(-)

diff --git a/lib/parse-datetime.y b/lib/parse-datetime.y
index 77d95b7..20bf1ac 100644
--- a/lib/parse-datetime.y
+++ b/lib/parse-datetime.y
@@ -282,6 +282,60 @@ set_hhmmss (parser_control *pc, long int hour, long int minutes,
   pc->seconds.tv_nsec = nsec;
 }
 
+/* Set PC-> hour, minutes, seconds and nanoseconds members from ISO 8601 basic
+   time.  */
+static void
+set_hhmmss_iso_8601_basic_time (parser_control *pc, long int integer_part,
+                                long int fractional_part)
+{
+  if (integer_part / 1000000 > 0)
+    {
+      /* not ISO 8601 time, forcing mktime error */
+      pc->hour = 90;
+      pc->minutes = 0;
+      pc->seconds.tv_sec = 0;
+      pc->seconds.tv_nsec = 0;
+    }
+  else
+    {
+      pc->hour = integer_part / 10000;
+      if (pc->hour > 0) /* HHMMSS */
+        {
+          pc->minutes = (integer_part % 10000) / 100;
+          pc->seconds.tv_sec = integer_part % 100;
+          pc->seconds.tv_nsec = fractional_part;
+        }
+      else
+        {
+          if (fractional_part != 0)
+            {
+              /* FIXME support fractional part for minutes and hours */
+              pc->hour = 90;
+              pc->minutes = 0;
+              pc->seconds.tv_sec = 0;
+              pc->seconds.tv_nsec = 0;
+            }
+          else
+            {
+              pc->hour = integer_part / 100;
+              if (pc->hour > 0) /* HHMM */
+                {
+                  pc->minutes = integer_part % 100;
+                  pc->seconds.tv_sec = 0;
+                  pc->seconds.tv_nsec = 0;
+                }
+              else /* HH */
+                {
+                  pc->hour = integer_part;
+                  pc->minutes = 0;
+                  pc->seconds.tv_sec = 0;
+                  pc->seconds.tv_nsec = 0;
+                }
+            }
+        }
+    }
+}
+
 %}
 
 /* We want a reentrant parser, even if the TZ manipulation and the calls to
@@ -290,8 +344,8 @@ set_hhmmss (parser_control *pc, long int hour, long int minutes,
 %parse-param { parser_control *pc }
 %lex-param { parser_control *pc }
 
-/* This grammar has 31 shift/reduce conflicts. */
-%expect 31
+/* This grammar has 34 shift/reduce conflicts. */
+%expect 34
 
 %union
 {
@@ -358,12 +412,18 @@ item:
 
 datetime:
     iso_8601_datetime
+  | iso_8601_basic_datetime
   ;
 
 iso_8601_datetime:
     iso_8601_date 'T' iso_8601_time
   ;
 
+iso_8601_basic_datetime:
+    number 'T' iso_8601_basic_time
+      { pc->dates_seen--; } /* already incremented in digits_to_date_time */
+  ;
+
 time:
     tUNUMBER tMERIDIAN
       {
@@ -401,6 +461,20 @@ iso_8601_time:
       }
   ;
 
+iso_8601_basic_time:
+    tUNUMBER o_zone_offset
+      {
+        set_hhmmss_iso_8601_basic_time (pc, $1.value, 0);
+        pc->meridian = MER24;
+      }
+  | tUDECIMAL_NUMBER o_zone_offset
+      {
+        /* FIXME avoid time_t to long int cast */
+        set_hhmmss_iso_8601_basic_time (pc, (long int)$1.tv_sec, $1.tv_nsec);
+        pc->meridian = MER24;
+      }
+  ;
+
 o_zone_offset:
   /* empty */
   | zone_offset
diff --git a/tests/test-parse-datetime.c b/tests/test-parse-datetime.c
index 7eba9ad..c620009 100644
--- a/tests/test-parse-datetime.c
+++ b/tests/test-parse-datetime.c
@@ -216,6 +216,67 @@ main (int argc _GL_UNUSED, char **argv)
           && expected.tv_nsec == result.tv_nsec);
 
 
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, local time zone */
+  p = "20110501T115518";
+  expected.tv_sec = ref_time - gmtoff;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, UTC */
+  p = "20110501T115518Z";
+  expected.tv_sec = ref_time;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, w/UTC offset */
+  p = "20110501T115518-0700";
+  expected.tv_sec = 1304276118;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, w/hour only UTC offset */
+  p = "20110501T115518-07";
+  expected.tv_sec = 1304276118;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, w/hour only UTC offset, with ns */
+  p = "20110501T115518,123456789-07";
+  expected.tv_sec = 1304276118;
+  expected.tv_nsec = 123456789;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* Invalid ISO 8601 basic date and time of day representation,
+     too many digits for time */
+  p = "20110501T11551800";
+  ASSERT (!parse_datetime (&result, p, 0));
+
+
   now.tv_sec = 4711;
   now.tv_nsec = 1267;
   p = "now";
-- 
1.7.9.5





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To: Mihai =?UTF-8?Q?Capot=C4=83?= <mihai@HIDDEN>
Subject: bug#14097: Acknowledgement ([PATCH] Add support for ISO 8601
 basic format)
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Date: Sat, 30 Mar 2013 19:22:02 +0000

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--=20
14097: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D14097
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On 03/30/2013 01:18 PM, Mihai Capot=C4=83 wrote:
> The parser now accepts the basic format for combined date and time
> representations, which ommits the date and time separators, "-" and ":"=
=2E

s/ommits/omits/

>=20
> See bug 23767 for GNU coreutils, <https://savannah.gnu.org/bugs/?23767>=
=2E
>=20
> * lib/parse-datetime.y: Parse combined date and time representations in=

> ISO 8601 basic format.
> (set_hhmmss_iso_8601_basic_time) New function.
> * tests/test-parse-datetime.c: Add new tests for combined date and time=

> representations in ISO 8601 basic format.
> ---
>  lib/parse-datetime.y        |   78 +++++++++++++++++++++++++++++++++++=
++++++--
>  tests/test-parse-datetime.c |   61 +++++++++++++++++++++++++++++++++

This patch is non-trivial in size.  I stopped reviewing here; we would
need to have copyright assignment on file to take this patch from you.
Is this still something you are interested in pursuing?

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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On Mon, Apr 1, 2013 at 2:51 PM, Eric Blake <eblake@HIDDEN> wrote:
> This patch is non-trivial in size.  I stopped reviewing here; we would
> need to have copyright assignment on file to take this patch from you.
> Is this still something you are interested in pursuing?

Yes, it is. I will take care of the copyright assignment ASAP.

Mihai




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On Mon, Apr 1, 2013 at 2:51 PM, Eric Blake <eblake@HIDDEN> wrote:
> This patch is non-trivial in size.  I stopped reviewing here; we would
> need to have copyright assignment on file to take this patch from you.
> Is this still something you are interested in pursuing?

I completed the assignment process. Please continue the review.

Mihai




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Thanks for taking this on.  Here is a brief review.
The most important thing is that the patch also needs
to update doc/parse-datetime.texi.  Also, some comments
about the code changes:

On 03/30/13 12:18, Mihai Capot=C4=83 wrote:
> +      /* not ISO 8601 time, forcing mktime error */
> +      pc->hour =3D 90;

How does this force a mktime error?  mktime allows tm_hour =3D=3D 90.

>  datetime:
>      iso_8601_datetime
> +  | iso_8601_basic_datetime
>    ;
> =20
>  iso_8601_datetime:
>      iso_8601_date 'T' iso_8601_time
>    ;
> =20
> +iso_8601_basic_datetime:
> +    number 'T' iso_8601_basic_time
> +      { pc->dates_seen--; } /* already incremented in digits_to_date_t=
ime */

This doesn't look right.  'number' accepts all sort of things that we
would rather not accept here.  Conversely, why require ":" in times to
correlate with "-" in dates?  Shouldn't we accept a "-"less date along
with a ":"ful time, and vice versa?  And that "dates_seen--" business
is a hack; can't we arrange things so that dates_seen is incremented
just once?

> +iso_8601_basic_time:
> +    tUNUMBER o_zone_offset
> +      {
> +        set_hhmmss_iso_8601_basic_time (pc, $1.value, 0);
> +        pc->meridian =3D MER24;
> +      }
> +  | tUDECIMAL_NUMBER o_zone_offset
> +      {
> +        /* FIXME avoid time_t to long int cast */

Why is the cast needed?  Also, can't the grammar be simplified
here, by using unsigned_seconds instead of using both
tUDECIMAL_NUMBER and tUNUMBER?






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The parser now accepts the basic format for combined date and time
representations, which ommits the date and time separators, "-" and ":".

See bug 23767 for GNU coreutils, <https://savannah.gnu.org/bugs/?23767>.

* lib/parse-datetime.y: Parse combined date and time representations in
ISO 8601 basic format.
(set_hhmmss_iso_8601_basic_time) New function.
(digits_iso_8601_basic_to_date) New function.
* tests/test-parse-datetime.c: Add tests for combined date and time
representations in ISO 8601 basic format.
* doc/parse-datetime.texi Document support for combined date and time
representations in ISO 8601 basic format.

Signed-off-by: Mihai Capotă <mihai@HIDDEN>
---
On Thu, Apr 25, 2013 at 12:02 AM, Paul Eggert <eggert@HIDDEN> wrote:
> The most important thing is that the patch also needs
> to update doc/parse-datetime.texi.

Done.

> On 03/30/13 12:18, Mihai Capotă wrote:
>> +      /* not ISO 8601 time, forcing mktime error */
>> +      pc->hour = 90;
>
> How does this force a mktime error?  mktime allows tm_hour == 90.

I meant to say mktime_ok. I changed the code to reject input by incrementing times_seen, like time_zone_hhmm.

>>  datetime:
>>      iso_8601_datetime
>> +  | iso_8601_basic_datetime
>>    ;
>>
>>  iso_8601_datetime:
>>      iso_8601_date 'T' iso_8601_time
>>    ;
>>
>> +iso_8601_basic_datetime:
>> +    number 'T' iso_8601_basic_time
>> +      { pc->dates_seen--; } /* already incremented in digits_to_date_time */
>
> This doesn't look right.  'number' accepts all sort of things that we
> would rather not accept here.

I was trying to make use of the existing digits_to_date_time function. I replaced it with tUNUMBER and a new function.

> Conversely, why require ":" in times to
> correlate with "-" in dates?  Shouldn't we accept a "-"less date along
> with a ":"ful time, and vice versa?

No, that is not allowed by the standard.

> And that "dates_seen--" business
> is a hack; can't we arrange things so that dates_seen is incremented
> just once?

The hack is gone.

>> +iso_8601_basic_time:
>> +    tUNUMBER o_zone_offset
>> +      {
>> +        set_hhmmss_iso_8601_basic_time (pc, $1.value, 0);
>> +        pc->meridian = MER24;
>> +      }
>> +  | tUDECIMAL_NUMBER o_zone_offset
>> +      {
>> +        /* FIXME avoid time_t to long int cast */
>
> Why is the cast needed?  Also, can't the grammar be simplified
> here, by using unsigned_seconds instead of using both
> tUDECIMAL_NUMBER and tUNUMBER?

I switched to using unsigned_seconds.

 doc/parse-datetime.texi     |    9 +++++-
 lib/parse-datetime.y        |   68 +++++++++++++++++++++++++++++++++++++++++--
 tests/test-parse-datetime.c |   61 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 135 insertions(+), 3 deletions(-)

diff --git a/doc/parse-datetime.texi b/doc/parse-datetime.texi
index 6b3e973..9aa87ed 100644
--- a/doc/parse-datetime.texi
+++ b/doc/parse-datetime.texi
@@ -327,7 +327,12 @@ The ISO 8601 date and time of day extended format consists of an ISO
 day.  This format is also recognized if the @samp{T} is replaced by a
 space.
 
-In this format, the time of day should use 24-hour notation.
+The ISO 8601 basic format is also recognized. It is identical to the ISO 8601
+extended format, except for omitting the @samp{-} separator in the date and the
+@samp{:} separator in the time. Only the HHMMSS format is supported for the
+time of day, the reduced accuracy HHMM and HH formats are not supported.
+
+In these formats, the time of day should use 24-hour notation.
 Fractional seconds are allowed, with either comma or period preceding
 the fraction.  ISO 8601 fractional minutes and hours are not
 supported.  Typically, hosts support nanosecond timestamp resolution;
@@ -339,6 +344,8 @@ Here are some examples:
 2012-09-24T20:02:00.052-0500
 2012-12-31T23:59:59,999999999+1100
 1970-01-01 00:00Z
+20120924T200200.052-0500
+20121231T235959,999999999+1100
 @end example
 
 @node Day of week items
diff --git a/lib/parse-datetime.y b/lib/parse-datetime.y
index 4dce7fa..fa9719d 100644
--- a/lib/parse-datetime.y
+++ b/lib/parse-datetime.y
@@ -257,6 +257,38 @@ digits_to_date_time (parser_control *pc, textint text_int)
     }
 }
 
+/* Extract into *PC the date info from a string of digits in ISO 8601 basic
+   format, i.e., YYYYMMHH, YYYY, or YY meaning century. Note that YYYYMM is not
+   allowed to avoid confusion with YYMMHH  */
+static void
+digits_iso_8601_basic_to_date (parser_control *pc, textint text_int)
+{
+  switch (text_int.digits)
+    {
+    case 8:
+      pc->day = text_int.value % 100;
+      pc->month = (text_int.value / 100) % 100;
+      pc->year.value = text_int.value / 10000;
+      pc->year.digits = 4;
+      return;
+    case 4:
+      pc->day = 1;
+      pc->month = 1;
+      pc->year.value = text_int.value;
+      pc->year.digits = 4;
+      return;
+    case 2:
+      pc->day = 1;
+      pc->month = 1;
+      pc->year.value = text_int.value * 100;
+      pc->year.digits = 4;
+      return;
+    default:
+      pc->dates_seen++;
+      return;
+    }
+}
+
 /* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1).  */
 static void
 apply_relative_time (parser_control *pc, relative_time rel, int factor)
@@ -282,6 +314,28 @@ set_hhmmss (parser_control *pc, long int hour, long int minutes,
   pc->seconds.tv_nsec = nsec;
 }
 
+/* Set PC-> hour, minutes, seconds and nanoseconds members from ISO 8601 basic
+   time.  */
+static void
+set_hhmmss_iso_8601_basic_time (parser_control *pc, time_t integer_part,
+                                long int fractional_part)
+{
+  if (integer_part / 1000000 > 0)
+    {
+      /* Not ISO 8601 time, arrange to reject it by incrementing
+         pc->times_seen.*/
+      pc->times_seen++;
+    }
+  else
+    {
+      /* FIXME support reduced accuracy times, i.e. HHMM and HH */
+      pc->hour = integer_part / 10000;
+      pc->minutes = (integer_part % 10000) / 100;
+      pc->seconds.tv_sec = integer_part % 100;
+      pc->seconds.tv_nsec = fractional_part;
+    }
+}
+
 %}
 
 /* We want a reentrant parser, even if the TZ manipulation and the calls to
@@ -290,8 +344,8 @@ set_hhmmss (parser_control *pc, long int hour, long int minutes,
 %parse-param { parser_control *pc }
 %lex-param { parser_control *pc }
 
-/* This grammar has 31 shift/reduce conflicts. */
-%expect 31
+/* This grammar has 33 shift/reduce conflicts. */
+%expect 33
 
 %union
 {
@@ -358,12 +412,22 @@ item:
 
 datetime:
     iso_8601_datetime
+  | iso_8601_basic_datetime
   ;
 
 iso_8601_datetime:
     iso_8601_date 'T' iso_8601_time
   ;
 
+iso_8601_basic_datetime:
+    tUNUMBER 'T' unsigned_seconds o_zone_offset
+      {
+        digits_iso_8601_basic_to_date (pc, $1);
+        set_hhmmss_iso_8601_basic_time (pc, $3.tv_sec, $3.tv_nsec);
+        pc->meridian = MER24;
+      }
+  ;
+
 time:
     tUNUMBER tMERIDIAN
       {
diff --git a/tests/test-parse-datetime.c b/tests/test-parse-datetime.c
index 7eba9ad..c620009 100644
--- a/tests/test-parse-datetime.c
+++ b/tests/test-parse-datetime.c
@@ -216,6 +216,67 @@ main (int argc _GL_UNUSED, char **argv)
           && expected.tv_nsec == result.tv_nsec);
 
 
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, local time zone */
+  p = "20110501T115518";
+  expected.tv_sec = ref_time - gmtoff;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, UTC */
+  p = "20110501T115518Z";
+  expected.tv_sec = ref_time;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, w/UTC offset */
+  p = "20110501T115518-0700";
+  expected.tv_sec = 1304276118;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, w/hour only UTC offset */
+  p = "20110501T115518-07";
+  expected.tv_sec = 1304276118;
+  expected.tv_nsec = 0;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* ISO 8601 basic date and time of day representation,
+     'T' separator, w/hour only UTC offset, with ns */
+  p = "20110501T115518,123456789-07";
+  expected.tv_sec = 1304276118;
+  expected.tv_nsec = 123456789;
+  ASSERT (parse_datetime (&result, p, 0));
+  LOG (p, expected, result);
+  ASSERT (expected.tv_sec == result.tv_sec
+          && expected.tv_nsec == result.tv_nsec);
+
+
+  /* Invalid ISO 8601 basic date and time of day representation,
+     too many digits for time */
+  p = "20110501T11551800";
+  ASSERT (!parse_datetime (&result, p, 0));
+
+
   now.tv_sec = 4711;
   now.tv_nsec = 1267;
   p = "now";
-- 
1.7.9.5





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Could someone please review the new patch?

On Mon, Aug 5, 2013 at 6:51 PM, Mihai Capot=C4=83 <mihai@HIDDEN> wrote:
> The parser now accepts the basic format for combined date and time
> representations, which ommits the date and time separators, "-" and ":".
>
> See bug 23767 for GNU coreutils, <https://savannah.gnu.org/bugs/?23767>.
>
> * lib/parse-datetime.y: Parse combined date and time representations in
> ISO 8601 basic format.
> (set_hhmmss_iso_8601_basic_time) New function.
> (digits_iso_8601_basic_to_date) New function.
> * tests/test-parse-datetime.c: Add tests for combined date and time
> representations in ISO 8601 basic format.
> * doc/parse-datetime.texi Document support for combined date and time
> representations in ISO 8601 basic format.
>
> Signed-off-by: Mihai Capot=C4=83 <mihai@HIDDEN>
> ---
> On Thu, Apr 25, 2013 at 12:02 AM, Paul Eggert <eggert@HIDDEN> wrote:
>> The most important thing is that the patch also needs
>> to update doc/parse-datetime.texi.
>
> Done.
>
>> On 03/30/13 12:18, Mihai Capot=C4=83 wrote:
>>> +      /* not ISO 8601 time, forcing mktime error */
>>> +      pc->hour =3D 90;
>>
>> How does this force a mktime error?  mktime allows tm_hour =3D=3D 90.
>
> I meant to say mktime_ok. I changed the code to reject input by increment=
ing times_seen, like time_zone_hhmm.
>
>>>  datetime:
>>>      iso_8601_datetime
>>> +  | iso_8601_basic_datetime
>>>    ;
>>>
>>>  iso_8601_datetime:
>>>      iso_8601_date 'T' iso_8601_time
>>>    ;
>>>
>>> +iso_8601_basic_datetime:
>>> +    number 'T' iso_8601_basic_time
>>> +      { pc->dates_seen--; } /* already incremented in digits_to_date_t=
ime */
>>
>> This doesn't look right.  'number' accepts all sort of things that we
>> would rather not accept here.
>
> I was trying to make use of the existing digits_to_date_time function. I =
replaced it with tUNUMBER and a new function.
>
>> Conversely, why require ":" in times to
>> correlate with "-" in dates?  Shouldn't we accept a "-"less date along
>> with a ":"ful time, and vice versa?
>
> No, that is not allowed by the standard.
>
>> And that "dates_seen--" business
>> is a hack; can't we arrange things so that dates_seen is incremented
>> just once?
>
> The hack is gone.
>
>>> +iso_8601_basic_time:
>>> +    tUNUMBER o_zone_offset
>>> +      {
>>> +        set_hhmmss_iso_8601_basic_time (pc, $1.value, 0);
>>> +        pc->meridian =3D MER24;
>>> +      }
>>> +  | tUDECIMAL_NUMBER o_zone_offset
>>> +      {
>>> +        /* FIXME avoid time_t to long int cast */
>>
>> Why is the cast needed?  Also, can't the grammar be simplified
>> here, by using unsigned_seconds instead of using both
>> tUDECIMAL_NUMBER and tUNUMBER?
>
> I switched to using unsigned_seconds.
>
>  doc/parse-datetime.texi     |    9 +++++-
>  lib/parse-datetime.y        |   68 +++++++++++++++++++++++++++++++++++++=
++++--
>  tests/test-parse-datetime.c |   61 +++++++++++++++++++++++++++++++++++++=
+
>  3 files changed, 135 insertions(+), 3 deletions(-)
>
> diff --git a/doc/parse-datetime.texi b/doc/parse-datetime.texi
> index 6b3e973..9aa87ed 100644
> --- a/doc/parse-datetime.texi
> +++ b/doc/parse-datetime.texi
> @@ -327,7 +327,12 @@ The ISO 8601 date and time of day extended format co=
nsists of an ISO
>  day.  This format is also recognized if the @samp{T} is replaced by a
>  space.
>
> -In this format, the time of day should use 24-hour notation.
> +The ISO 8601 basic format is also recognized. It is identical to the ISO=
 8601
> +extended format, except for omitting the @samp{-} separator in the date =
and the
> +@samp{:} separator in the time. Only the HHMMSS format is supported for =
the
> +time of day, the reduced accuracy HHMM and HH formats are not supported.
> +
> +In these formats, the time of day should use 24-hour notation.
>  Fractional seconds are allowed, with either comma or period preceding
>  the fraction.  ISO 8601 fractional minutes and hours are not
>  supported.  Typically, hosts support nanosecond timestamp resolution;
> @@ -339,6 +344,8 @@ Here are some examples:
>  2012-09-24T20:02:00.052-0500
>  2012-12-31T23:59:59,999999999+1100
>  1970-01-01 00:00Z
> +20120924T200200.052-0500
> +20121231T235959,999999999+1100
>  @end example
>
>  @node Day of week items
> diff --git a/lib/parse-datetime.y b/lib/parse-datetime.y
> index 4dce7fa..fa9719d 100644
> --- a/lib/parse-datetime.y
> +++ b/lib/parse-datetime.y
> @@ -257,6 +257,38 @@ digits_to_date_time (parser_control *pc, textint tex=
t_int)
>      }
>  }
>
> +/* Extract into *PC the date info from a string of digits in ISO 8601 ba=
sic
> +   format, i.e., YYYYMMHH, YYYY, or YY meaning century. Note that YYYYMM=
 is not
> +   allowed to avoid confusion with YYMMHH  */
> +static void
> +digits_iso_8601_basic_to_date (parser_control *pc, textint text_int)
> +{
> +  switch (text_int.digits)
> +    {
> +    case 8:
> +      pc->day =3D text_int.value % 100;
> +      pc->month =3D (text_int.value / 100) % 100;
> +      pc->year.value =3D text_int.value / 10000;
> +      pc->year.digits =3D 4;
> +      return;
> +    case 4:
> +      pc->day =3D 1;
> +      pc->month =3D 1;
> +      pc->year.value =3D text_int.value;
> +      pc->year.digits =3D 4;
> +      return;
> +    case 2:
> +      pc->day =3D 1;
> +      pc->month =3D 1;
> +      pc->year.value =3D text_int.value * 100;
> +      pc->year.digits =3D 4;
> +      return;
> +    default:
> +      pc->dates_seen++;
> +      return;
> +    }
> +}
> +
>  /* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1).  */
>  static void
>  apply_relative_time (parser_control *pc, relative_time rel, int factor)
> @@ -282,6 +314,28 @@ set_hhmmss (parser_control *pc, long int hour, long =
int minutes,
>    pc->seconds.tv_nsec =3D nsec;
>  }
>
> +/* Set PC-> hour, minutes, seconds and nanoseconds members from ISO 8601=
 basic
> +   time.  */
> +static void
> +set_hhmmss_iso_8601_basic_time (parser_control *pc, time_t integer_part,
> +                                long int fractional_part)
> +{
> +  if (integer_part / 1000000 > 0)
> +    {
> +      /* Not ISO 8601 time, arrange to reject it by incrementing
> +         pc->times_seen.*/
> +      pc->times_seen++;
> +    }
> +  else
> +    {
> +      /* FIXME support reduced accuracy times, i.e. HHMM and HH */
> +      pc->hour =3D integer_part / 10000;
> +      pc->minutes =3D (integer_part % 10000) / 100;
> +      pc->seconds.tv_sec =3D integer_part % 100;
> +      pc->seconds.tv_nsec =3D fractional_part;
> +    }
> +}
> +
>  %}
>
>  /* We want a reentrant parser, even if the TZ manipulation and the calls=
 to
> @@ -290,8 +344,8 @@ set_hhmmss (parser_control *pc, long int hour, long i=
nt minutes,
>  %parse-param { parser_control *pc }
>  %lex-param { parser_control *pc }
>
> -/* This grammar has 31 shift/reduce conflicts. */
> -%expect 31
> +/* This grammar has 33 shift/reduce conflicts. */
> +%expect 33
>
>  %union
>  {
> @@ -358,12 +412,22 @@ item:
>
>  datetime:
>      iso_8601_datetime
> +  | iso_8601_basic_datetime
>    ;
>
>  iso_8601_datetime:
>      iso_8601_date 'T' iso_8601_time
>    ;
>
> +iso_8601_basic_datetime:
> +    tUNUMBER 'T' unsigned_seconds o_zone_offset
> +      {
> +        digits_iso_8601_basic_to_date (pc, $1);
> +        set_hhmmss_iso_8601_basic_time (pc, $3.tv_sec, $3.tv_nsec);
> +        pc->meridian =3D MER24;
> +      }
> +  ;
> +
>  time:
>      tUNUMBER tMERIDIAN
>        {
> diff --git a/tests/test-parse-datetime.c b/tests/test-parse-datetime.c
> index 7eba9ad..c620009 100644
> --- a/tests/test-parse-datetime.c
> +++ b/tests/test-parse-datetime.c
> @@ -216,6 +216,67 @@ main (int argc _GL_UNUSED, char **argv)
>            && expected.tv_nsec =3D=3D result.tv_nsec);
>
>
> +  /* ISO 8601 basic date and time of day representation,
> +     'T' separator, local time zone */
> +  p =3D "20110501T115518";
> +  expected.tv_sec =3D ref_time - gmtoff;
> +  expected.tv_nsec =3D 0;
> +  ASSERT (parse_datetime (&result, p, 0));
> +  LOG (p, expected, result);
> +  ASSERT (expected.tv_sec =3D=3D result.tv_sec
> +          && expected.tv_nsec =3D=3D result.tv_nsec);
> +
> +
> +  /* ISO 8601 basic date and time of day representation,
> +     'T' separator, UTC */
> +  p =3D "20110501T115518Z";
> +  expected.tv_sec =3D ref_time;
> +  expected.tv_nsec =3D 0;
> +  ASSERT (parse_datetime (&result, p, 0));
> +  LOG (p, expected, result);
> +  ASSERT (expected.tv_sec =3D=3D result.tv_sec
> +          && expected.tv_nsec =3D=3D result.tv_nsec);
> +
> +
> +  /* ISO 8601 basic date and time of day representation,
> +     'T' separator, w/UTC offset */
> +  p =3D "20110501T115518-0700";
> +  expected.tv_sec =3D 1304276118;
> +  expected.tv_nsec =3D 0;
> +  ASSERT (parse_datetime (&result, p, 0));
> +  LOG (p, expected, result);
> +  ASSERT (expected.tv_sec =3D=3D result.tv_sec
> +          && expected.tv_nsec =3D=3D result.tv_nsec);
> +
> +
> +  /* ISO 8601 basic date and time of day representation,
> +     'T' separator, w/hour only UTC offset */
> +  p =3D "20110501T115518-07";
> +  expected.tv_sec =3D 1304276118;
> +  expected.tv_nsec =3D 0;
> +  ASSERT (parse_datetime (&result, p, 0));
> +  LOG (p, expected, result);
> +  ASSERT (expected.tv_sec =3D=3D result.tv_sec
> +          && expected.tv_nsec =3D=3D result.tv_nsec);
> +
> +
> +  /* ISO 8601 basic date and time of day representation,
> +     'T' separator, w/hour only UTC offset, with ns */
> +  p =3D "20110501T115518,123456789-07";
> +  expected.tv_sec =3D 1304276118;
> +  expected.tv_nsec =3D 123456789;
> +  ASSERT (parse_datetime (&result, p, 0));
> +  LOG (p, expected, result);
> +  ASSERT (expected.tv_sec =3D=3D result.tv_sec
> +          && expected.tv_nsec =3D=3D result.tv_nsec);
> +
> +
> +  /* Invalid ISO 8601 basic date and time of day representation,
> +     too many digits for time */
> +  p =3D "20110501T11551800";
> +  ASSERT (!parse_datetime (&result, p, 0));
> +
> +
>    now.tv_sec =3D 4711;
>    now.tv_nsec =3D 1267;
>    p =3D "now";
> --
> 1.7.9.5
>




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On Sat, Aug 31, 2013 at 5:31 PM, Mihai Capot=C4=83 <mihai@HIDDEN> wrote:
> Could someone please review the new patch?

Anybody?




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severity 14097 wishlist
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