Import IANA 2014c database

8 files changed, 102 insertions, 68 deletions

diff --git a/elsie.nci.nih.gov/src/Makefile b/elsie.nci.nih.gov/src/Makefile
index ffe57db..3cdd845 100644
--- a/elsie.nci.nih.gov/src/Makefile
+++ b/elsie.nci.nih.gov/src/Makefile
@@ -6,7 +6,7 @@
 PACKAGE=	tzcode
 
 # Version numbers of the code and data distributions.
-VERSION=	2014b
+VERSION=	2014c
 
 # Email address for bug reports.
 BUGEMAIL=	tz@iana.org
@@ -443,7 +443,7 @@ check_web:	$(WEB_PAGES)
 
 clean_misc:
 		rm -f core *.o *.out \
-		  date tzselect version.h zdump zic yearistype
+		  date tzselect version.h zdump zic yearistype libtz.a
 clean:		clean_misc
 		rm -fr tzpublic
 
diff --git a/elsie.nci.nih.gov/src/NEWS b/elsie.nci.nih.gov/src/NEWS
index de7400a..b092ba8 100644
--- a/elsie.nci.nih.gov/src/NEWS
+++ b/elsie.nci.nih.gov/src/NEWS
@@ -1,6 +1,30 @@
 News for the tz database
 
 
+Release 2014c - 2014-05-13 07:44:13 -0700
+
+  Changes affecting near-future time stamps
+
+    Egypt observes DST starting May 15.  (Thanks to Ahmad El-Dardiry.)
+    Details have not been announced, except that DST will not be observed
+    during Ramadan.  Guess that DST will stop during the same Ramadan dates as
+    Morocco, and that Egypt's future spring and fall transitions will be the
+    same as 2010 when it last observed DST, namely April's last Friday at
+    00:00 to September's last Thursday at 23:00 standard time.  Also, guess
+    that Ramadan transitions will be at 00:00 standard time.
+
+  Changes affecting code
+
+    zic now generates transitions for minimum time values, eliminating guesswork
+    when handling low-valued time stamps.  (Thanks to Arthur David Olson.)
+
+    Port to Cygwin sans glibc.  (Thanks to Arthur David Olson.)
+
+  Changes affecting commentary and documentation
+
+    Remove now-confusing comment about Jordan.  (Thanks to Oleksii Nochovnyi.)
+
+
 Release 2014b - 2014-03-24 21:28:50 -0700
 
   Changes affecting near-future time stamps
diff --git a/elsie.nci.nih.gov/src/africa b/elsie.nci.nih.gov/src/africa
index fbf0b65..83bff2e 100644
--- a/elsie.nci.nih.gov/src/africa
+++ b/elsie.nci.nih.gov/src/africa
@@ -335,11 +335,54 @@ Rule	Egypt	2007	only	-	Sep	Thu>=1	23:00s	0	-
 # http://www.worldtimezone.com/dst_news/dst_news_egypt02.html
 # </a>
 
+# From Ahmad El-Dardiry (2014-05-07):
+# Egypt is to change back to Daylight system on May 15
+# http://english.ahram.org.eg/NewsContent/1/64/100735/Egypt/Politics-/Egypts-government-to-reapply-daylight-saving-time-.aspx
+
+# From Gunther Vermier (2015-05-13):
+# our Egypt office confirms that the change will be at 15 May "midnight" (24:00)
+
+# From Paul Eggert (2014-05-13):
+# Sarah El Deeb and Lee Keath of AP report that the Egyptian government says
+# the change is because of blackouts in Cairo, even though Ahram Online (cited
+# above) says DST had no affect on electricity consumption.  The AP story says
+# DST will not be observed during Ramadan.  There is no information about when
+# DST will end.  See:
+# http://abcnews.go.com/International/wireStory/el-sissi-pushes-egyptians-line-23614833
+#
+# For now, guess that later transitions will use 2010's rules, and that
+# Egypt will agree with Morocco (see below) about the date Ramadan starts and
+# ends, though (unlike Morocco) it will switch at 00:00 standard time.  In
+# Egypt the spring-forward transitions are removed for 2020-2022, when the
+# guessed spring-forward date falls during the estimated Ramadan, and all
+# transitions removed for 2023-2038, where the estimated Ramadan falls entirely
+# outside the guessed daylight-saving time.  Ramadan intrudes on the guessed
+# DST starting in 2039, but that's beyond our somewhat-arbitrary cutoff.
+
 Rule	Egypt	2008	only	-	Aug	lastThu	23:00s	0	-
 Rule	Egypt	2009	only	-	Aug	20	23:00s	0	-
 Rule	Egypt	2010	only	-	Aug	11	0:00	0	-
 Rule	Egypt	2010	only	-	Sep	10	0:00	1:00	S
 Rule	Egypt	2010	only	-	Sep	lastThu	23:00s	0	-
+Rule	Egypt	2014	only	-	May	15	24:00	1:00	S
+Rule	Egypt	2014	only	-	Jun	29	 0:00s	0	-
+Rule	Egypt	2014	only	-	Jul	29	 0:00s	1:00	S
+Rule	Egypt	2014	max	-	Sep	lastThu	23:00s	0	-
+Rule	Egypt	2015	2019	-	Apr	lastFri	 0:00s	1:00	S
+Rule	Egypt	2015	only	-	Jun	18	 0:00s	0	-
+Rule	Egypt	2015	only	-	Jul	18	 0:00s	1:00	S
+Rule	Egypt	2016	only	-	Jun	 7	 0:00s	0	-
+Rule	Egypt	2016	only	-	Jul	 7	 0:00s	1:00	S
+Rule	Egypt	2017	only	-	May	27	 0:00s	0	-
+Rule	Egypt	2017	only	-	Jun	26	 0:00s	1:00	S
+Rule	Egypt	2018	only	-	May	16	 0:00s	0	-
+Rule	Egypt	2018	only	-	Jun	15	 0:00s	1:00	S
+Rule	Egypt	2019	only	-	May	 6	 0:00s	0	-
+Rule	Egypt	2019	only	-	Jun	 5	 0:00s	1:00	S
+Rule	Egypt	2020	only	-	May	24	 0:00s	1:00	S
+Rule	Egypt	2021	only	-	May	13	 0:00s	1:00	S
+Rule	Egypt	2022	only	-	May	 3	 0:00s	1:00	S
+Rule	Egypt	2023	max	-	Apr	lastFri	 0:00s	1:00	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
diff --git a/elsie.nci.nih.gov/src/asia b/elsie.nci.nih.gov/src/asia
index 3bd7e7d..24566ca 100644
--- a/elsie.nci.nih.gov/src/asia
+++ b/elsie.nci.nih.gov/src/asia
@@ -1347,22 +1347,6 @@ Zone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
 # "Jordan will switch to winter time on Friday, October 27".
 #
 
-# From Phil Pizzey (2009-04-02):
-# ...I think I may have spotted an error in the timezone data for
-# Jordan.
-# The current (2009d) asia file shows Jordan going to daylight
-# saving
-# time on the last Thursday in March.
-#
-# Rule  Jordan      2000  max	-  Mar   lastThu     0:00s 1:00  S
-#
-# However timeanddate.com, which I usually find reliable, shows Jordan
-# going to daylight saving time on the last Friday in March since 2002.
-# Please see
-# <a href="http://www.timeanddate.com/worldclock/timezone.html?n=11">
-# http://www.timeanddate.com/worldclock/timezone.html?n=11
-# </a>
-
 # From Steffen Thorsen (2009-04-02):
 # This single one might be good enough, (2009-03-24, Arabic):
 # <a href="http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279">
diff --git a/elsie.nci.nih.gov/src/europe b/elsie.nci.nih.gov/src/europe
index f9a3392..bfc596a 100644
--- a/elsie.nci.nih.gov/src/europe
+++ b/elsie.nci.nih.gov/src/europe
@@ -2966,6 +2966,10 @@ Zone Europe/Simferopol	2:16:24 -	LMT	1880
 # From Alexander Krivenyshev (2014-03-17):
 # time change at 2:00 (2am) on March 30, 2014
 # http://vz.ru/news/2014/3/17/677464.html
+# From Paul Eggert (2014-03-30):
+# Simferopol and Sevastopol reportedly changed their central town clocks
+# late the previous day, but this appears to have been ceremonial
+# and the discrepancies are small enough to not worry about.
 			2:00	EU	EE%sT	2014 Mar 30 2:00
 			4:00	-	MSK
 
diff --git a/elsie.nci.nih.gov/src/private.h b/elsie.nci.nih.gov/src/private.h
index 1a85c88..4e8f4ae 100644
--- a/elsie.nci.nih.gov/src/private.h
+++ b/elsie.nci.nih.gov/src/private.h
@@ -120,8 +120,9 @@
 */
 #ifndef HAVE_STDINT_H
 #define HAVE_STDINT_H \
-	(199901 <= __STDC_VERSION__ || \
-	2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
+   (199901 <= __STDC_VERSION__ \
+    || 2 < __GLIBC__ + (1 <= __GLIBC_MINOR__)	\
+    || __CYGWIN__)
 #endif /* !defined HAVE_STDINT_H */
 
 #if HAVE_STDINT_H
diff --git a/elsie.nci.nih.gov/src/zdump.c b/elsie.nci.nih.gov/src/zdump.c
index 209b79d..c48ac84 100644
--- a/elsie.nci.nih.gov/src/zdump.c
+++ b/elsie.nci.nih.gov/src/zdump.c
@@ -36,7 +36,9 @@
 
 #ifndef HAVE_STDINT_H
 # define HAVE_STDINT_H \
-    (199901 <= __STDC_VERSION__ || 2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
+    (199901 <= __STDC_VERSION__ \
+     || 2 < __GLIBC__ + (1 <= __GLIBC_MINOR__)	\
+     || __CYGWIN__)
 #endif
 #if HAVE_STDINT_H
 # include "stdint.h"
diff --git a/elsie.nci.nih.gov/src/zic.c b/elsie.nci.nih.gov/src/zic.c
index 34b3dc1..7e0f97f 100644
--- a/elsie.nci.nih.gov/src/zic.c
+++ b/elsie.nci.nih.gov/src/zic.c
@@ -962,8 +962,6 @@ gethms(const char *string, const char *const errstring, const int signable)
 		error(_("time overflow"));
 		return 0;
 	}
-	if (noise && hh == HOURSPERDAY && mm == 0 && ss == 0)
-		warning(_("24:00 not handled by pre-1998 versions of zic"));
 	if (noise && (hh > HOURSPERDAY ||
 		(hh == HOURSPERDAY && (mm != 0 || ss != 0))))
 warning(_("values over 24 hours not handled by pre-2007 versions of zic"));
@@ -1482,17 +1480,11 @@ writezone(const char *const name, const char *const string, char version)
 		fromi = 0;
 		while (fromi < timecnt && attypes[fromi].at < min_time)
 			++fromi;
-		/*
-		** Remember that type 0 is reserved.
-		*/
-		if (isdsts[1] == 0)
-			while (fromi < timecnt && attypes[fromi].type == 1)
-				++fromi;	/* handled by default rule */
 		for ( ; fromi < timecnt; ++fromi) {
-			if (toi != 0 && ((attypes[fromi].at +
+			if (toi > 1 && ((attypes[fromi].at +
 				gmtoffs[attypes[toi - 1].type]) <=
-				(attypes[toi - 1].at + gmtoffs[toi == 1 ? 0
-				: attypes[toi - 2].type]))) {
+				(attypes[toi - 1].at +
+				gmtoffs[attypes[toi - 2].type]))) {
 					attypes[toi - 1].type =
 						attypes[fromi].type;
 					continue;
@@ -1503,6 +1495,9 @@ writezone(const char *const name, const char *const string, char version)
 		}
 		timecnt = toi;
 	}
+	if (noise && timecnt > 1200)
+		warning(_("pre-2014 clients may mishandle"
+			  " more than 1200 transition times"));
 	/*
 	** Transfer.
 	*/
@@ -1534,6 +1529,13 @@ writezone(const char *const name, const char *const string, char version)
 		--timecnt32;
 		++timei32;
 	}
+	/*
+	** Output an INT32_MIN "transition" if appropriate--see below.
+	*/
+	if (timei32 > 0 && ats[timei32] > INT32_MIN) {
+		--timei32;
+		++timecnt32;
+	}
 	while (leapcnt32 > 0 && !is32(trans[leapcnt32 - 1]))
 		--leapcnt32;
 	while (leapcnt32 > 0 && !is32(trans[leapi32])) {
@@ -1588,11 +1590,7 @@ writezone(const char *const name, const char *const string, char version)
 		}
 		thistimelim = thistimei + thistimecnt;
 		thisleaplim = thisleapi + thisleapcnt;
-		/*
-		** Remember that type 0 is reserved.
-		*/
-		writetype[0] = FALSE;
-		for (i = 1; i < typecnt; ++i)
+		for (i = 0; i < typecnt; ++i)
 			writetype[i] = thistimecnt == timecnt;
 		if (thistimecnt == 0) {
 			/*
@@ -1608,11 +1606,8 @@ writezone(const char *const name, const char *const string, char version)
 			/*
 			** For America/Godthab and Antarctica/Palmer
 			*/
-			/*
-			** Remember that type 0 is reserved.
-			*/
 			if (thistimei == 0)
-				writetype[1] = TRUE;
+				writetype[0] = TRUE;
 		}
 #ifndef LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH
 		/*
@@ -1662,26 +1657,8 @@ writezone(const char *const name, const char *const string, char version)
 		}
 #endif /* !defined LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH */
 		thistypecnt = 0;
-		/*
-		** Potentially, set type 0 to that of lowest-valued time.
-		*/
-		if (thistimei > 0) {
-			for (i = 1; i < typecnt; ++i)
-				if (writetype[i] && !isdsts[i])
-					break;
-			if (i != types[thistimei - 1]) {
-				i = types[thistimei - 1];
-				gmtoffs[0] = gmtoffs[i];
-				isdsts[0] = isdsts[i];
-				ttisstds[0] = ttisstds[i];
-				ttisgmts[0] = ttisgmts[i];
-				abbrinds[0] = abbrinds[i];
-				writetype[0] = TRUE;
-				writetype[i] = FALSE;
-			}
-		}
 		for (i = 0; i < typecnt; ++i)
-			typemap[i] = writetype[i] ?  thistypecnt++ : 0;
+			typemap[i] = writetype[i] ?  thistypecnt++ : -1;
 		for (i = 0; i < sizeof indmap / sizeof indmap[0]; ++i)
 			indmap[i] = -1;
 		thischarcnt = 0;
@@ -1725,7 +1702,12 @@ writezone(const char *const name, const char *const string, char version)
 #undef DO
 		for (i = thistimei; i < thistimelim; ++i)
 			if (pass == 1)
-				puttzcode(ats[i], fp);
+				/*
+				** Output an INT32_MIN "transition"
+				** if appropriate--see above.
+				*/
+				puttzcode(((ats[i] < INT32_MIN) ?
+					INT32_MIN : ats[i]), fp);
 			else	puttzcode64(ats[i], fp);
 		for (i = thistimei; i < thistimelim; ++i) {
 			unsigned char	uc;
@@ -2104,11 +2086,6 @@ outzone(const struct zone * const zpfirst, const int zonecount)
 		updateminmax(leapminyear);
 		updateminmax(leapmaxyear + (leapmaxyear < ZIC_MAX));
 	}
-	/*
-	** Reserve type 0.
-	*/
-	gmtoffs[0] = isdsts[0] = ttisstds[0] = ttisgmts[0] = abbrinds[0] = -1;
-	typecnt = 1;
 	for (i = 0; i < zonecount; ++i) {
 		zp = &zpfirst[i];
 		if (i < zonecount - 1)
@@ -2208,8 +2185,7 @@ outzone(const struct zone * const zpfirst, const int zonecount)
 			if (usestart) {
 				addtt(starttime, type);
 				usestart = FALSE;
-			} else if (stdoff != 0)
-				addtt(min_time, type);
+			} else	addtt(min_time, type);
 		} else for (year = min_year; year <= max_year; ++year) {
 			if (useuntil && year > zp->z_untilrule.r_hiyear)
 				break;