check_ical: parse events

5 files changed, 377 insertions, 4 deletions

diff --git a/.gitignore b/.gitignore
index 1825f47..4c3ad24 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 *.swp
+/check_ical
+/check_ical_out.txt
 /opplysning
+core
diff --git a/Makefile b/Makefile
index 8792f2e..d172224 100644
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,24 @@
 .POSIX:
 
 CFLAGS = -Wall -Wextra -pedantic -O2 -g
+LIBS = -lraylib -lm -lpthread -lGLESv2 -lEGL \
+       -lical -licalss -licalvcal \
+       $$([ `uname -m` = aarch64 ] && echo '-lvcos -lvchiq_arm -lgbm -ldrm')
+
+all: check_ical opplysning
 
-all: opplysning
+check: all
+	./check_ical < check_ical_in.ical > check_ical_out.txt
+	diff -u check_ical_ans.txt check_ical_out.txt && echo PASS || echo FAIL
 
 clean:
+	rm -f check_ical check_ical_out.txt
 	rm -f opplysning
 
-.PHONY: all clean
+.PHONY: all check clean
 
-LIBS = -lraylib -lm -lpthread -lGLESv2 -lEGL \
-       $$([ `uname -m` = aarch64 ] && echo '-lvcos -lvchiq_arm -lgbm -ldrm')
+check_ical: check_ical.c
+	$(CC) $(CFLAGS) -o $@ check_ical.c $(LIBS)
 
 opplysning: opplysning.c
 	$(CC) $(CFLAGS) -o $@ opplysning.c $(LIBS)
diff --git a/check_ical.c b/check_ical.c
new file mode 100644
index 0000000..6cddeb3
--- /dev/null
+++ b/check_ical.c
@@ -0,0 +1,52 @@
+#include <assert.h>
+#include <stdlib.h>
+
+#include <libical/ical.h>
+
+char *
+read_stream(char *s, size_t size, void *d)
+{
+	return fgets(s, (int)size, (FILE *)d);
+}
+
+int
+main(void)
+{
+	icalparser *parser = icalparser_new();
+	assert(parser);
+
+	FILE *stream = stdin;
+	assert(stream);
+
+	icalparser_set_gen_data(parser, stream);
+	for (;;) {
+		char *line = icalparser_get_line(parser, read_stream);
+		if (!line) {
+			break;
+		}
+
+		icalcomponent *comp = icalparser_add_line(parser, line);
+		if (!comp) {
+			continue;
+		}
+
+		for (icalcompiter i = icalcomponent_begin_component(
+			 comp, ICAL_VEVENT_COMPONENT);
+		     icalcompiter_deref(&i); icalcompiter_next(&i)) {
+			icalcomponent *c = icalcompiter_deref(&i);
+
+			struct icaltimetype dts = icalcomponent_get_dtstart(c);
+			printf("%02u-%02u-%02u  ", dts.year, dts.month,
+			       dts.day);
+			printf("%02u:%02u  ", dts.hour, dts.minute);
+
+			const char *sum = icalcomponent_get_summary(c);
+			assert(sum);
+			printf("%s\n", sum);
+		}
+
+		icalcomponent_free(comp);
+	}
+
+	icalparser_free(parser);
+}
diff --git a/check_ical_ans.txt b/check_ical_ans.txt
new file mode 100644
index 0000000..154341f
--- /dev/null
+++ b/check_ical_ans.txt
@@ -0,0 +1,10 @@
+2025-04-17  18:00  Byggekveld
+2025-04-17  18:00  Omvisning (guided tour)
+2025-04-18  19:00  PRUSA 3D printer course
+2025-04-19  17:00  Lasercutter: basic use and safety
+2025-04-20  13:00  Armor Workshop
+2025-04-23  16:00  Learn to use Bitraf's Table Saw
+2025-04-24  18:00  Omvisning (guided tour)
+2025-04-24  18:00  Form Labs resin printer introduksjons kurs
+2025-04-24  18:00  Byggekveld
+2025-04-24  20:00  Bitrafs årsmøte 2025
diff --git a/check_ical_in.ical b/check_ical_in.ical
new file mode 100644
index 0000000..d4e1346
--- /dev/null
+++ b/check_ical_in.ical
@@ -0,0 +1,300 @@
+BEGIN:VCALENDAR

+VERSION:2.0

+PRODID:-//Meetup//Meetup Calendar 1.0//EN

+CALSCALE:GREGORIAN

+METHOD:PUBLISH

+NAME:Bitraf

+X-WR-CALNAME:Bitraf

+BEGIN:VTIMEZONE

+TZID:Europe/Oslo

+TZURL:http://tzurl.org/zoneinfo-outlook/Europe/Oslo

+X-LIC-LOCATION:Europe/Oslo

+BEGIN:DAYLIGHT

+TZOFFSETFROM:+0100

+TZOFFSETTO:+0200

+TZNAME:CEST

+DTSTART:19700329T020000

+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU

+END:DAYLIGHT

+BEGIN:STANDARD

+TZOFFSETFROM:+0200

+TZOFFSETTO:+0100

+TZNAME:CET

+DTSTART:19701025T030000

+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU

+END:STANDARD

+END:VTIMEZONE

+BEGIN:VEVENT

+UID:event_306978569@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250417T180000

+DTEND;TZID=Europe/Oslo:20250417T234500

+SUMMARY:Byggekveld

+DESCRIPTION:Bitraf\nBring your own project if you want or just drop by to 

+ check out what we're all about. This is the perfect day for a tour of the 

+ space\, so if you want to see Bitraf - be there close to 18:00 and someone

+  can show you around. Check the Photos (https://bitraf.no/skrytegalleri/) 

+ to see examples of what Bitraf members are making on BuildNight and at Bit

+ raf in general.\n\nThe doors are open from 1800\, often earlier too. Feel 

+ free to come later too\, we'll stick around for most of the evening. See h

+ ttps://wiki.bitraf.no/wiki/Byggekveld for details about this evening.

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/306978569/

+STATUS:CONFIRMED

+CREATED:20250328T174809Z

+LAST-MODIFIED:20250328T174809Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_306978583@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250417T180000

+DTEND;TZID=Europe/Oslo:20250417T190000

+SUMMARY:Omvisning (guided tour)

+DESCRIPTION:Bitraf\nDenne dagen er fin å komme på om man har lyst på en

+  omvisning.\nVi tar en generell runde og viser frem hva man kan gjøre på

+  Bitraf\, blant annet: Laser kutter\, 3D printer\, CNC fres\, lodding\, el

+ ektronikk\, verksted\, coworking space\, medlemsprosjekter og mye annet. S

+ pørsmål underveis.\n\nOmvisningen starter:\n18:00\nMan kan finne mer inf

+ ormasjon om Bitraf på vår wiki: [Bitraf wiki](https://bitraf.no/wiki/ind

+ ex.php?title=Hovedside)\n\nEnglish:\nThis day is dedicated to free tours o

+ f Bitraf\, guaranteed to not stumble into a full event. We will walk throu

+ gh and look at all the machinery and activities one can do at bitraf. More

+  info about what is at bitraf: [Bitraf wiki](https://bitraf.no/wiki/index.

+ php?title=Hovedside)\nTours begin at:\n18:00

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/306978583/

+STATUS:CONFIRMED

+CREATED:20250328T174816Z

+LAST-MODIFIED:20250328T174816Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_306792351@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250418T190000

+DTEND;TZID=Europe/Oslo:20250418T213000

+SUMMARY:PRUSA 3D printer course

+DESCRIPTION:Bitraf\nThis will be a short intro\, where I'll show you the w

+ hole process from model to ready print. I'm also going to show you how the

+  common problems occur\, and how to fix them. I also should say this cours

+ e is going to be in english\, but i can answer any questions you ask in no

+ rwegian.\nIf you want to bring your laptop\, here are important links:\n[P

+ rusa slicer](https://www.prusa3d.com/page/prusaslicer_424/)\n[Prusa i3 mk3

+ s handbook](https://cdn.prusa3d.com/downloads/manual/prusa3d_manual_mk3s_e

+ n.pdf)\n[Website with free models for printing](https://www.printables.com

+ /)\n\nThe only requirement for the course\, is that you choose a time you 

+ can actually attend and cancel in advance if you cant attend.\n**Bringing 

+ a computer is recommended**.\n\nThere are no restrictions on who can use t

+ he printers. But this is where you can get all the info and pointers you n

+ eed for using printers as a beginner.

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/306792351/

+STATUS:CONFIRMED

+CREATED:20250318T180559Z

+LAST-MODIFIED:20250318T180559Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_307301453@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250419T170000

+DTEND;TZID=Europe/Oslo:20250419T190000

+SUMMARY:Lasercutter: basic use and safety

+DESCRIPTION:Bitraf\nThis course is for paying Bitraf members only. If you 

+ are not a paying member\, sign up for membership at [https://bitraf.no/#](

+ https://bitraf.no/#) before the course.\nIf you want to make precise cuts 

+ in thin materials\, a laser cutter may just be what you need.\nBitraf has 

+ 2 laser cutters capable of cutting lines and engraving patterns in wood\, 

+ plastic\, fabric\, leather and more. It's entirely possible to do dangerou

+ s and harmful things with the cutter. Therefore it is mandatory to complet

+ e a laser-course at Bitraf before using the machinery. During this course 

+ we will look at the whole process from a simple and quick design project t

+ o a finished object.\nIt is an advantage if everyone has their own laptop 

+ with Illustrator\, Inkscape\, Fusion 360 or Rhino installed. Both Inkscape

+  and Fusion can be installed for free\; https://inkscape.org/en\, [https:/

+ /www.autodesk.com/products/fusion-360/overview](https://www.autodesk.com/p

+ roducts/fusion-360/overview). For Fusion\, sign up for «Start-Up or Educa

+ tional licensing». Bitraf has a PC for those who can’t bring a laptop.\

+ nNorwegian documentation for the laser can be found at\n[https://wiki.bitr

+ af.no/wiki/Laser](https://wiki.bitraf.no/wiki/Laser)\n[https://wiki.bitraf

+ .no/wiki/Laser-steg](https://wiki.bitraf.no/wiki/Laser-steg)\n[https://pap

+ er.dropbox.com/doc/Lasercutter-Guidelines-of-use--Bu19hdZzo6KoAg6AlpgjTMPg

+ Ag-SJmzPpa01ts2cHiMjybQE](https://paper.dropbox.com/doc/Lasercutter-Guidel

+ ines-of-use--Bu19hdZzo6KoAg6AlpgjTMPgAg-SJmzPpa01ts2cHiMjybQE)\n\nThe soft

+ ware we use on the lasers is called Lightburn.\n[https://lightburnsoftware

+ .com](https://lightburnsoftware.com)\nPlease look through the plethora of 

+ tutorials available on youtube and their website - you can download the so

+ ftware to your own laptop before the course too.\n\nThe course will be in 

+ either Norwegian or English\, depending on the attendees.\nImportant infor

+ mation:\n• These courses tend to fill up. If you realize that you can't 

+ attend after signing up\, please RSVP 'no' to sign off asap\, so that some

+ one else can take your spot.\n• The course **starts** at 17:00 precisely

+  in the lab. You are welcome to come earlier to grab coffee etc before the

+  course starts. Be sure to be on time\, if you come late as you will miss 

+ important information essential to complete the course\, and not get certi

+ fied to use the machines.\n• Because of high expenses and running costs 

+ for the laser\, you need to be a paying member of Bitraf to attend this co

+ urse. Please join Bitraf at [http://bitraf.no/join](http://bitraf.no/join)

+  before signing up to the course.\n• The course starts with a group theo

+ ry presentation (about 45 min)\, then practical training that can take up 

+ to an hour each. You will be added to the 'TOOLS' tool access system at th

+ is point\, meaning you will have everything you need to start using the la

+ sers straight away. You are free to leave after the practical part.\n\nPle

+ ase join Bitraf Slack workspace and register for the bitraf google calenda

+ r before attending the course:\n[Click here to join Bitraf’s slack works

+ pace](https://bitraf.no/slack-invite/)\nhttps://bitraf.no/slack-invite/\n[

+ Click here for how to join Bitraf's google group](https://wiki.bitraf.no/w

+ iki/Booking)\nhttps://wiki.bitraf.no/wiki/Booking

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/307301453/

+STATUS:CONFIRMED

+CREATED:20250415T140332Z

+LAST-MODIFIED:20250415T140332Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_307024978@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250420T130000

+DTEND;TZID=Europe/Oslo:20250420T190000

+SUMMARY:Armor Workshop

+DESCRIPTION:Bitraf\nArmor Workshop invitere til kostyme\, props og all mor

+ ro vi kan ha med laging og mekking av hva en vi ønsker. Ta med deg dine p

+ rosjekter og delta i felleskapet.\n\nKanskje kan vi og lære noe av hveran

+ dre!\n\nBegynner 13:00 til 19:00. Men man kommer og går som man vil :)

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/307024978/

+STATUS:CONFIRMED

+CREATED:20250331T113546Z

+LAST-MODIFIED:20250331T113546Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_307068688@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250423T160000

+DTEND;TZID=Europe/Oslo:20250423T210000

+SUMMARY:Learn to use Bitraf's Table Saw

+DESCRIPTION:Bitraf\nThis course is necessary for everyone who wants access

+  to the table saw at Bitraf - beginner and experienced users - to establis

+ h baseline knowledge & standards that everyone can expect of each other.\n

+ \nThis course is very popular - **be the person** that signs up and takes 

+ the opportunity to join a course seriously. If you don't turn up\, you tak

+ e away the opportunity to learn from someone else. **Book the time off in 

+ your calendar\, even if you're on the waitlist**. It is very common to get

+  bumped up as the course date/time approaches.\n\nSigning up to the waitli

+ st means you take on the responsibility to check the event daily (even on 

+ the hours before the event) **and** the possibility to turn up at short no

+ tice. If you know it's likely you won't have the time anymore\, please cha

+ nge your rsvp to 'no' as soon as you're aware.\n\nThe intention of the cou

+ rse is to develop safe working practices for the safety of you\, others at

+  Bitraf\, and the machine. This is required knowledge that must put into u

+ se each time you use the table saw to be safe and excellent to each other.

+ \n\n***\n\nYOU are responsible for yourself\, Bitraf has no liability if y

+ ou are injured.\n\nThis course is for paying Bitraf members only. If you a

+ re not a paying member\, sign up for membership at [https://bitraf.no/#](h

+ ttps://bitraf.no/#) before the course.\n\n3 people per course\n\nIt is a 5

+ -part course with a small break\, taking approx 4 hours\n\nThis course is 

+ in English\n\nThe course is held in the workshop upstairs.\n\nThings to ha

+ ve ready for course:\n\n* Dust Mask (buy in Bitmart if needed)\n* Eye and 

+ Hearing protection (Bitraf has if you don't)\n* A mind of giving what you 

+ have - time\, an open mind\, an attitude of learning/sharing\n\nUpon compl

+ etion of course you will have table saw access via the p2k16 ‘TOOLS’ s

+ ystem. This enables use of the machine to be logged.\n\nThanks for your ti

+ me and future attention

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/307068688/

+STATUS:CONFIRMED

+CREATED:20250402T174028Z

+LAST-MODIFIED:20250402T174028Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_bndvktyhcgbgc@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250424T180000

+DTEND;TZID=Europe/Oslo:20250424T190000

+SUMMARY:Omvisning (guided tour)

+DESCRIPTION:Bitraf\nDenne dagen er fin å komme på om man har lyst på en

+  omvisning.\nVi tar en generell runde og viser frem hva man kan gjøre på

+  Bitraf\, blant annet: Laser kutter\, 3D printer\, CNC fres\, lodding\, el

+ ektronikk\, verksted\, coworking space\, medlemsprosjekter og mye annet. S

+ pørsmål underveis.\n\nOmvisningen starter:\n18:00\nMan kan finne mer inf

+ ormasjon om Bitraf på vår wiki: [Bitraf wiki](https://bitraf.no/wiki/ind

+ ex.php?title=Hovedside)\n\nEnglish:\nThis day is dedicated to free tours o

+ f Bitraf\, guaranteed to not stumble into a full event. We will walk throu

+ gh and look at all the machinery and activities one can do at bitraf. More

+  info about what is at bitraf: [Bitraf wiki](https://bitraf.no/wiki/index.

+ php?title=Hovedside)\nTours begin at:\n18:00

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/bndvktyhcgbgc/

+STATUS:CONFIRMED

+CREATED:20240315T094635Z

+LAST-MODIFIED:20240315T094635Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_307081967@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250424T180000

+DTEND;TZID=Europe/Oslo:20250424T200000

+SUMMARY:Form Labs resin printer introduksjons kurs 

+DESCRIPTION:Bitraf\nVi starter opp igjen med introduksjonskurs på vår Fo

+ rm Labs resin printer.\n\nDette er en gjennomgang av printeren\, slicer so

+ ftware\, og en forståelse for hva man bør tenke på ved resin printing.\

+ n\nDet er ikke noe printing på selve kurset men det gir deg en solid star

+ t for å begynne på egenhand.\n\nKursetholdes på norsk eller engelsk ett

+ er ønske.\nKurset holdes hver andre uke. Men kan og holdes etter avtale.

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/307081967/

+STATUS:CONFIRMED

+CREATED:20250403T090931Z

+LAST-MODIFIED:20250403T090931Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_307109896@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250424T180000

+DTEND;TZID=Europe/Oslo:20250424T234500

+SUMMARY:Byggekveld

+DESCRIPTION:Bitraf\nBring your own project if you want or just drop by to 

+ check out what we're all about. This is the perfect day for a tour of the 

+ space\, so if you want to see Bitraf - be there close to 18:00 and someone

+  can show you around. Check the Photos (https://bitraf.no/skrytegalleri/) 

+ to see examples of what Bitraf members are making on BuildNight and at Bit

+ raf in general.\n\nThe doors are open from 1800\, often earlier too. Feel 

+ free to come later too\, we'll stick around for most of the evening. See h

+ ttps://wiki.bitraf.no/wiki/Byggekveld for details about this evening.

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/307109896/

+STATUS:CONFIRMED

+CREATED:20250404T172302Z

+LAST-MODIFIED:20250404T172302Z

+CLASS:PUBLIC

+END:VEVENT

+BEGIN:VEVENT

+UID:event_307219849@meetup.com

+SEQUENCE:1

+DTSTAMP:20250416T190128Z

+DTSTART;TZID=Europe/Oslo:20250424T200000

+DTEND;TZID=Europe/Oslo:20250424T220000

+SUMMARY:Bitrafs årsmøte 2025

+DESCRIPTION:Bitraf\nAlle medlemmer i foreningen Bitraf (orgnr. 898124452) 

+ inviteres herved til årsmøte/generalforsamling for 2025 – torsdag 24. 

+ april kl. 20:00.\n\nAgenda/saksliste:\n\n1. Valg av møteleder og referent

+ \n2. Godkjenning av innkalling\n3. Årsberetning og informasjon om alt som

+  er nytt\n4. Regnskap og Balanse for 2024\n5. Budsjett for 2025\n6. Valg a

+ v styre\n7. Valg av revisor\n8. Eventuelt\n\nAlle som vil kan komme på å

+ rsmøtet\, men for å ha stemmerett må man være betalende medlem av Bitr

+ af.

+URL;VALUE=URI:https://www.meetup.com/bitraf/events/307219849/

+STATUS:CONFIRMED

+CREATED:20250410T194408Z

+LAST-MODIFIED:20250410T194408Z

+CLASS:PUBLIC

+END:VEVENT

+X-ORIGINAL-URL:https://www.meetup.com/bitraf/events/ical/

+X-WR-CALNAME:Bitraf

+END:VCALENDAR