add icalparser

diff --git a/.gitignore.d/mutt b/.gitignore.d/mutt
index ce028e0a412ccba7ccfc2535c6b08a2323267cf1..bfea42ac76a9c2394baf1d627cea37cd725c4961 100644 (file)
--- a/.gitignore.d/mutt
+++ b/.gitignore.d/mutt
@@ -15,6 +15,7 @@
 !/.mutt/.gitignore
 !/.mutt/headers
 !/.mutt/hooks
 !/.mutt/.gitignore
 !/.mutt/headers
 !/.mutt/hooks

+!/.mutt/icalparser

 !/.mutt/keybindings
 !/.mutt/list-mailboxes
 !/.mutt/lists
 !/.mutt/keybindings
 !/.mutt/list-mailboxes
 !/.mutt/lists

diff --git a/.mutt/icalparser b/.mutt/icalparser
new file mode 100755 (executable)
index 0000000..b2b1af3
--- /dev/null
+++ b/.mutt/icalparser
@@ -0,0 +1,51 @@
+#!/usr/bin/python3
+
+import sys
+import os
+from icalendar import Calendar, Event
+
+def dtstrs(start, end):
+    start, end = start.dt, end.dt
+
+    def strftime(dt, strf):
+        return dt.astimezone().strftime(strf)
+
+    ret = []
+    if start.tzinfo == end.tzinfo:
+        ret.append(strftime(start, '%F %R'))
+
+    else:
+        ret.append(strftime(start, '%F %R %Z'))
+
+    if start.date() == end.date():
+        ret.append(strftime(end, '%T %Z'))
+
+    else:
+        ret.append(strftime(end, '%F %R %Z'))
+
+    return ret
+
+def parse_ics_file(fp):
+    cal = Calendar.from_ical(fp.read())
+
+    for event in cal.walk():
+        if event.name != "VEVENT": continue
+        print('=' * (int(os.getenv('COLUMNS', 80))-10))
+        print('{} → {}'.format(*dtstrs(event.get('dtstart'), event.get('dtend'))))
+        for i in ('summary','organizer','location','rrule'):
+            print('  {:9s}: {}'.format(i.capitalize(), event.get(i, f'(no {i})')))
+        flags = []
+        for k in ('status', 'class', 'transp', 'priority'):
+            t = event.get(k)
+            if t: flags.append((k, t))
+        print('  Flags    : ' + ' '.join('{}:{}'.format(*f) for f in flags))
+
+if __name__ == '__main__':
+
+    if len(sys.argv) > 1:
+        for f in sys.argv[1:]:
+            fp = open(f)
+            parse_ics_file(fp)
+            fp.close()
+    else:
+        parse_ics_file(sys.stdin)