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Eggert 1994 updates

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SCCS-file: zic.8
SCCS-SID: 7.7
This commit is contained in:
Arthur David Olson
1994-02-07 09:57:44 -05:00
committed by Paul Eggert
parent b7e2567ec7
commit 565ff7d9a7
1 changed files with 25 additions and 16 deletions
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41
zic.8
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@ -20,7 +20,8 @@ zic \- time zone compiler
] [
.B \-s
] [
.B \-y command
.B \-y
.I command
] [
.I filename
\&... ]
@ -86,7 +87,7 @@ Use the given
rather than
.B yearistype
when checking year types (see below).
.sp
.PP
Input lines are made up of fields.
Fields are separated from one another by any number of white space characters.
Leading and trailing white space on input lines is ignored.
@ -100,7 +101,6 @@ rule lines, zone lines, and link lines.
.PP
A rule line has the form
.nf
.B
.ti +.5i
.ta \w'Rule\0\0'u +\w'NAME\0\0'u +\w'FROM\0\0'u +\w'1973\0\0'u +\w'TYPE\0\0'u +\w'Apr\0\0'u +\w'lastSun\0\0'u +\w'2:00\0\0'u +\w'SAVE\0\0'u
.sp
@ -109,7 +109,7 @@ Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
For example:
.ti +.5i
.sp
Rule USA 1969 1973 \- Apr lastSun 2:00 1:00 D
Rule US 1967 1973 \- Apr lastSun 2:00 1:00 D
.sp
.fi
The fields that make up a rule line are:
@ -119,12 +119,16 @@ Gives the (arbitrary) name of the set of rules this rule is part of.
.TP
.B FROM
Gives the first year in which the rule applies.
Any integer year can be supplied; the Gregorian calendar is assumed.
The word
.B minimum
(or an abbreviation) means the minimum year with a representable time value.
(or an abbreviation) means the minimum year representable as an integer.
The word
.B maximum
(or an abbreviation) means the maximum year with a representable time value.
(or an abbreviation) means the maximum year representable as an integer.
Rules can describe times that are not representable as time values,
with the unrepresentable times ignored; this allows rules to be portable
among hosts with differing time value types.
.TP
.B TO
Gives the final year in which the rule applies.
@ -257,13 +261,13 @@ A zone line has the form
.sp
.nf
.ti +.5i
.ta \w'Zone\0\0'u +\w'Australia/South\-west\0\0'u +\w'GMTOFF\0\0'u +\w'RULES/SAVE\0\0'u +\w'FORMAT\0\0'u
.ta \w'Zone\0\0'u +\w'Australia/Adelaide\0\0'u +\w'GMTOFF\0\0'u +\w'RULES/SAVE\0\0'u +\w'FORMAT\0\0'u
Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
.sp
For example:
.sp
.ti +.5i
Zone Australia/South\-west 9:30 Aus CST 1987 Mar 15 2:00
Zone Australia/Adelaide 9:30 Aus CST 1971 Oct 31 2:00
.sp
.fi
The fields that make up a zone line are:
@ -346,9 +350,9 @@ lines may appear in any order in the input.
.PP
Lines in the file that describes leap seconds have the following form:
.nf
.B
.ti +.5i
.ta \w'Leap\0\0'u +\w'YEAR\0\0'u +\w'MONTH\0\0'u +\w'DAY\0\0'u +\w'HH:MM:SS\0\0'u +\w'CORR\0\0'u
.sp
Leap YEAR MONTH DAY HH:MM:SS CORR R/S
.sp
For example:
@ -372,13 +376,18 @@ should be
if a second was added
or
.q -
if a second was skipped
or
.q ++
if two seconds were added
or
.q --
if two seconds were skipped.
if a second was skipped.
.\" There's no need to document the following, since it's impossible for more
.\" than one leap second to be inserted or deleted at a time.
.\" The C Standard is in error in suggesting the possibility.
.\" See Terry J Quinn, The BIPM and the accurate measure of time,
.\" Proc IEEE 79, 7 (July 1991), 894-905.
.\" or
.\" .q ++
.\" if two seconds were added
.\" or
.\" .q --
.\" if two seconds were skipped.
The
.B R/S
field