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78e3924ea4
* zic.8, zoneinfo2tdf.pl: Change names of Link line fields to be more descriptive and more like the parameters of 'ln'. LINK-FROM becomes TARGET, and LINK-TO becomes LINK-NAME. * backward: Add a '# Link' header. * europe, northamerica: Add a few '# Zone' headers where needed. * NEWS: Document this.
53 lines
1.4 KiB
Perl
Executable File
53 lines
1.4 KiB
Perl
Executable File
#! /usr/bin/perl -w
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# Courtesy Ken Pizzini.
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use strict;
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#This file released to the public domain.
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# Note: error checking is poor; trust the output only if the input
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# has been checked by zic.
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my $contZone = '';
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while (<>) {
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my $origline = $_;
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my @fields = ();
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while (s/^\s*((?:"[^"]*"|[^\s#])+)//) {
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push @fields, $1;
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}
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next unless @fields;
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my $type = lc($fields[0]);
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if ($contZone) {
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@fields >= 3 or warn "bad continuation line";
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unshift @fields, '+', $contZone;
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$type = 'zone';
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}
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$contZone = '';
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if ($type eq 'zone') {
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# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
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my $nfields = @fields;
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$nfields >= 5 or warn "bad zone line";
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if ($nfields > 6) {
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#this splice is optional, depending on one's preference
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#(one big date-time field, or componentized date and time):
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splice(@fields, 5, $nfields-5, "@fields[5..$nfields-1]");
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}
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$contZone = $fields[1] if @fields > 5;
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} elsif ($type eq 'rule') {
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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@fields == 10 or warn "bad rule line";
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} elsif ($type eq 'link') {
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# Link TARGET LINK-NAME
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@fields == 3 or warn "bad link line";
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} elsif ($type eq 'leap') {
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# Leap YEAR MONTH DAY HH:MM:SS CORR R/S
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@fields == 7 or warn "bad leap line";
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} else {
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warn "Fubar at input line $.: $origline";
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}
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print join("\t", @fields), "\n";
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}
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