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-rwxr-xr-xkorganizer/ical2vcal.in454
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+#! @PERL@
+# THE ABOVE LINE SHOULD POINT TO YOUR PERL EXECUTABLE!
+# ical2vcal
+# (c) 1998 Preston Brown
+# Part of the KOrganizer Project
+#
+# This utility will read ~/.calendar in the ical format as input, and output
+# a file in the versit vCalendar format with a .vcs extension.
+#
+# This code is covered by the GNU Public License. Please see the file
+# COPYING for more information.
+#
+# MINIMAL ERROR CHECKING! HIGHLY PRIMITIVE! YOU HAVE BEEN WARNED!
+
+# open the calendar.
+$home = $ENV{"HOME"};
+$pcount = 0;
+
+$exitstatus = 0;
+
+$filename = "$home/.calendar";
+
+if (defined($ARGV[0]) && defined($ARGV[1])) {
+ $filename = $ARGV[0];
+ $outfilename = $ARGV[1];
+} elsif (defined($ARGV[0])) {
+ $outfilename = $ARGV[0];
+} else {
+ exit -1;
+}
+
+if (!open(ICALFILE, $filename)) {
+ exit -1;
+}
+if (!open(VCALFILE, ">$outfilename")) {
+ exit -1;
+}
+
+$line = <ICALFILE>;
+
+&write_header;
+
+if ($line =~ /Calendar(\s+)\[v/) {
+ while ($line = &getLine) {
+ if (($line =~ /^Appt/) || ($line =~ /^Note/)) {
+ &process_appointment;
+ &write_appointment;
+ } else {
+ # silently skip line
+ }
+ }
+} else {
+ # not a ical file?!
+ exit -2;
+}
+
+close(ICALFILE);
+close(VCALFILE);
+
+sub getLine
+{
+ $_ = <ICALFILE>;
+ if (!defined($_)) {
+ &write_footer;
+ exit $exitstatus;
+ }
+ s/\\\[/\(/g;
+ s/\\\]/\)/g;
+ $pcount += tr/\[//;
+ $pcount -= tr/\]//;
+ return $_;
+}
+
+sub process_appointment
+{
+ undef(%curappt);
+
+ # this is a count of the total # of parentheses.
+ while ($pcount) {
+ $line = &getLine;
+
+ # check to see if more is left to be processed.
+ if ($pcount > 0) {
+ # process the line.
+
+ if ($line =~ /^Start/) {
+ # start time (minutes since midnight)
+ $_ = $line;
+ ($totalmin) = /\[(\d+)\]/;
+ $min = $totalmin % 60;
+ $hour = int ($totalmin / 60);
+ $curappt{"starthour"} = $hour;
+ $curappt{"startmin"} = $min;
+
+ } elsif ($line =~ /^Length/) {
+ # time length (minutes)
+ $_ = $line;
+ ($lengthmin) = /\[(\d+)\]/;
+ $min = $lengthmin % 60;
+ $hour = int ($lengthmin / 60);
+ $curappt{"endhour"} = $hour;
+ $curappt{"endmin"} = $min;
+ } elsif ($line =~ /^Uid/) {
+ # unique identifier
+ $_ = $line;
+ ($uid) = /\[(.+)\]/;
+ $curappt{"uid"} = $uid ;
+ } elsif ($line =~ /^Owner/) {
+ # appointment's owner
+ $_ = $line;
+ ($attendee) = /\[(\w+)\]/;
+ $curappt{"attendee"} = $attendee;
+ } elsif ($line =~ /^Contents/) {
+ # description
+ $description = "";
+ $_ = $line;
+ # special case where it's all in one place:
+ if (/\[(.*)\]/) {
+ $summary = $1;
+ } else {
+ ($summary) = /\[(.*)/;
+ $_ = &getLine;
+ while (!(/\]$/)) {
+ chop;
+ $description = $description . " " . $_;
+ $_ = &getLine;
+ }
+ /(.*)\]$/;
+ $description = $description . $1;
+ }
+ $curappt{"summary"} = $summary;
+ if (length($description) > 0) {
+ $summary = $summary . "...";
+ $curappt{"description"} = $description;
+ }
+ } elsif ($line =~ /^Text/) {
+ $description = "";
+ $_ = $line;
+ if (/\[\d+\s+\[(.*)\]\]/) {
+ $summary = $1;
+ } else {
+ ($summary) = /\[\d+\s+\[(.*)$/;
+ $_ = &getLine;
+ while (!(/\]$/)) {
+ chop;
+ $description = $description . " " . $_;
+ $_ = &getLine;
+ }
+ /^(.*)\]\]/;
+ $description = $description . $1;
+ }
+ $curappt{"summary"} = $summary;
+ if (length($description) > 0) {
+ $summary = $summary . "...";
+ $curappt{"description"} = $description;
+ }
+ } elsif ($line =~ /^Alarms/) {
+ $_ = $line;
+ ($alarm) = /(\d+)\]/;
+ $curappt{"alarmtime"} = $alarm;
+ } elsif ($line =~ /^Todo/) {
+ $curappt{"todo"} = 1;
+ } elsif ($line =~ /^Dates/) {
+ # dates to occur on
+ &process_dates;
+ } elsif ($line =~ /^\]/) {
+ # do nothing
+ } elsif ($line =~ /^Hilite/) {
+ # do nothing
+ } elsif ($line =~ /^Remind/) {
+ # do nothing
+ } elsif ($line =~ /^Done/) {
+ $curappt{"done"}=1;
+ } else {
+ # do nothing
+ ;
+ }
+
+ } # if $pcount > 0
+
+ } # while pcount
+
+ if (defined($curappt{"starthour"})) {
+ # fix up end time, just peg it at the end of the day
+ $endhour = $curappt{"starthour"} + $curappt{"endhour"};
+ $endmin = $curappt{"startmin"} + $curappt{"endmin"};
+ $endhour = $endhour + int ($endmin / 60);
+ $endmin = $endmin % 60;
+ $curappt{"endhour"} = $endhour;
+ $curappt{"endmin"} = $endmin;
+ if ($endhour >= 24) {
+ $curappt{"endhour"} = 23;
+ $curappt{"endmin"} = 55;
+ }
+ }
+}
+
+sub output
+{
+ $outline = shift(@_);
+ print VCALFILE $outline;
+ print VCALFILE "\n";
+# print($outline);
+# print("\n");
+}
+
+sub write_header
+{
+ output("BEGIN:VCALENDAR");
+ output("PRODID:-//K Desktop Environment//NONSGML KOrganizer//EN");
+ output("VERSION:1.0");
+}
+
+sub write_footer
+{
+ output("END:VCALENDAR");
+}
+
+sub write_appointment
+{
+ if (defined($curappt{"tossme"})) {
+ return;
+ }
+
+ if (defined($curappt{"todo"})) {
+ output("BEGIN:VTODO");
+ } else {
+ output("BEGIN:VEVENT");
+ }
+ $tmpstr = &date_to_str($curappt{"startyear"},
+ $curappt{"startmonth"},
+ $curappt{"startday"});
+ if (defined($curappt{"starthour"})) {
+ $tmpstr = $tmpstr . &time_to_str($curappt{"starthour"},
+ $curappt{"startmin"});
+ } else {
+ $tmpstr = $tmpstr . &time_to_str("0","0");
+ }
+ output("DCREATED:" . $tmpstr);
+ output("UID:" . $curappt{"uid"});
+ output("SEQUENCE:0");
+ output("LAST-MODIFIED:$tmpstr");
+ output("DTSTART:$tmpstr");
+ if (defined($curappt{"starthour"})) {
+ $tmpstr = &date_to_str($curappt{"startyear"},
+ $curappt{"startmonth"},
+ $curappt{"startday"}) .
+ &time_to_str($curappt{"endhour"},
+ $curappt{"endmin"});
+ }
+ output("DTEND:$tmpstr");
+ if (defined($curappt{"summary"})) {
+ $summary = $curappt{"summary"};
+ output("SUMMARY:$summary");
+ }
+ if (defined($curappt{"description"})) {
+ $description = $curappt{"description"};
+ output("DESCRIPTION:$description");
+ }
+ if (defined($curappt{"attendee"})) {
+ $attendee = "ATTENDEE;ROLE=OWNER:" . $curappt{"attendee"};
+ output($attendee);
+ }
+
+ if (defined($curappt{"alarm"})) {
+
+ }
+
+ if (defined($curappt{"repeats"})) {
+ # wow what a mess
+ $rule = "RRULE:";
+ if ($curappt{"repeats"} eq "DAILY") {
+ $rule = $rule . "D" . $curappt{"period"};
+ } elsif ($curappt{"repeats"} eq "WEEKLY") {
+ $rule = $rule . "W1" . " ";
+ $rule = $rule . $curappt{"weekdays"};
+
+ } elsif ($curappt{"repeats"} eq "MONTHLY") {
+ $rule = $rule . "MD" . $curappt{"period"};
+ $rule = $rule . " " . $curappt{"startday"};
+ }
+ if ($curappt{"endrepeat"} && ($curappt{"endrepeat"} =~ /T/)) {
+ $rule = $rule . " " . $curappt{"endrepeat"};
+ } elsif ($curappt{"endrepeat"}) {
+ $rule = $rule . " \#" . $curappt{"endrepeat"};
+ } else {
+ $rule = $rule . " \#0";
+ }
+ output($rule);
+ }
+ if (defined($curappt{"exceptions"})) {
+ $exceptions = "EXDATE:" . $curappt{"exceptions"};
+ chop($exceptions);
+ output($exceptions);
+ }
+ if (defined($curappt{"todo"})) {
+ if (defined($curappt{"done"})) {
+ output("STATUS:COMPLETED");
+ } else {
+ output("STATUS:NEEDS ACTION");
+ }
+ }
+ output("CLASS:PUBLIC");
+ output("PRIORITY:0");
+ output("TRANSP:0");
+ output("RELATED-TO:0");
+ if (defined($curappt{"todo"})) {
+ output("END:VTODO\n");
+ } else {
+ output("END:VEVENT\n");
+ }
+}
+
+sub date_to_str
+{
+ $year = shift(@_);
+ $month = shift(@_);
+ $day = shift(@_);
+ my($datestr);
+ $datestr = sprintf("%04d%02d%02d",$year,$month,$day);
+ return $datestr;
+}
+
+sub time_to_str
+{
+ $hour = shift(@_);
+ $min = shift(@_);
+ my($timestr);
+
+ $timestr = sprintf("T%02d%02d00",$hour,$min);
+ return $timestr;
+}
+
+sub process_dates
+{
+ # first, test for single
+ $_ = $line;
+ if (/\[Single/) {
+ &repeat_none;
+ } elsif (/\[Days/) {
+ &repeat_daily;
+ } elsif (/\[WeekDays/) {
+ &repeat_weekly;
+ } elsif (/\[Months/) {
+ &repeat_monthly;
+ } elsif (/\[ComplexMonths/) {
+ $exitstatus = 1;
+ #printf("WARNING: complex repeating month entry detected, we don't support.\n");
+ #printf("converting to a single occurrence on the original start date.\n");
+ $line = &getLine;
+ &repeat_none;
+ } elsif (/\[Empty/) {
+ # silently toss
+ $curappt{"tossme"} = "TRUE";
+ } else {
+ $exitstatus = 1;
+ #print "didn't understand line: $_";
+ }
+ while ($line = &getLine) {
+ if ($line =~ /^\]/) {
+ return;
+ } elsif ($line =~ /^Finish/) {
+ ($day, $month, $year) = /(\d+)\/(\d+)\/(\d+)/;
+ $curappt{"endrepeat"} = &date_to_str($year, $month, $day);
+ $curappt{"endrepeat"} = $curappt{"endrepeat"} . &time_to_str("0","0");
+ } elsif ($line =~ /^Deleted/) {
+ ($day, $month, $year) = /(\d+)\/(\d+)\/(\d+)/;
+ if (defined($curappt{"exceptions"})) {
+ $curappt{"exceptions"} = $curappt{"exceptions"} .
+ &date_to_str($year, $month, $day) . ";";
+ } else {
+ $curappt{"exceptions"} = &date_to_str($year, $month, $day) .
+ ";";
+ }
+ } else {
+ $exitstatus = 1;
+ #print "trashed line: $line";
+ }
+ }
+}
+
+sub repeat_none
+{
+ # just a one time shot
+ ($day, $month, $year) = /(\d+)\/(\d+)\/(\d+)/;
+ $curappt{"startmonth"} = $month;
+ $curappt{"startday"} = $day;
+ $curappt{"startyear"} = $year;
+}
+
+sub repeat_daily
+{
+ # repeats on a daily basis
+ $curappt{"repeats"} = "DAILY";
+ ($skip) = /(\d+)$/;
+ $curappt{"period"} = $skip;
+ $line = &getLine;
+ ($day, $month, $year) = /(\d+)\/(\d+)\/(\d+)/;
+ $curappt{"startmonth"} = $month;
+ $curappt{"startday"} = $day;
+ $curappt{"startyear"} = $year;
+}
+
+sub repeat_weekly
+{
+ # repeats on a weekly basis, a few days a week
+ $curappt{"repeats"} = "WEEKLY";
+ $startofdates = index($_,"WeekDays") + length("WeekDays");
+ $endofdates = index($_,"Months");
+ $datestr = substr($_,$startofdates,($endofdates-$startofdates));
+ $datestr =~ s/^\s+//;
+ @days = split(/\s+/,$datestr);
+ $datestr = "";
+ foreach $date (@days) {
+ if ($date == 1) {
+ $datestr = $datestr . "SU ";
+ } elsif ($date == 2) {
+ $datestr = $datestr . "MO ";
+ } elsif ($date == 3) {
+ $datestr = $datestr . "TU ";
+ } elsif ($date == 4) {
+ $datestr = $datestr . "WE ";
+ } elsif ($date == 5) {
+ $datestr = $datestr . "TH ";
+ } elsif ($date == 6) {
+ $datestr = $datestr . "FR ";
+ } elsif ($date == 7) {
+ $datestr = $datestr . "SA ";
+ }
+ }
+ # remove one trailing whitespace
+ chop($datestr);
+ $curappt{"weekdays"} = $datestr;
+ $line = &getLine;
+ ($day, $month, $year) = /(\d+)\/(\d+)\/(\d+)/;
+ $curappt{"startmonth"} = $month;
+ $curappt{"startday"} = $day;
+ $curappt{"startyear"} = $year;
+}
+
+sub repeat_monthly
+{
+ # repeats on a daily basis
+ $curappt{"repeats"} = "MONTHLY";
+ ($skip) = /(\d+)$/;
+ $curappt{"period"} = $skip;
+ $line = &getLine;
+ ($day, $month, $year) = /(\d+)\/(\d+)\/(\d+)/;
+ $curappt{"startmonth"} = $month;
+ $curappt{"startday"} = $day;
+ $curappt{"startyear"} = $year;
+}
+
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-15 22:23:01 +0000