import sys
import os
from icalendar import Calendar, Event
+from textwrap import fill, indent
-def dtstrs(start, end):
- start, end = start.dt, end.dt
+FIELDS = ('summary','location','organiser',
+ 'flags','uid','rrule')
+COLSEP = ': '
+
+COLUMNS = int(os.getenv('COLUMNS', 80))-10
+WIDTH = max(len(i) for i in FIELDS)
+INDENT = WIDTH + len(COLSEP)
+
+def dtstrs(event):
+ start, end = event.get('dtstart').dt, event.get('dtend')
+ if not end:
+ duration = event.get('duration').dt
+ end = start + duration
+ else:
+ end = end.dt
def strftime(dt, strf):
return dt.astimezone().strftime(strf)
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','uid','rrule'):
- print(' {:9s}: {}'.format(i.capitalize(), event.get(i, f'(no {i})')))
+ print('{} → {}'.format(*dtstrs(event)))
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))
+ event['flags'] = ' '.join('{}:{}'.format(*f) for f in flags)
+ for label in FIELDS:
+ if label in event:
+ text = fill(str(event[label]), width=COLUMNS-INDENT,
+ initial_indent='', subsequent_indent=' '*INDENT)
+ print(f'{label.capitalize():>{WIDTH}s}{COLSEP}{text}')
+
+ if 'description' in event:
+ output = ['']
+ lines = event['description'].split('\n')
+ for line in lines:
+ output.append(fill(line, width=COLUMNS, initial_indent=' ',
+ subsequent_indent=' '))
+ print('\n'.join(output))
if __name__ == '__main__':
- if len(sys.argv) > 1:
+ if len(sys.argv) > 1 and sys.argv[1] != '-':
for f in sys.argv[1:]:
- fp = open(f)
- parse_ics_file(fp)
- fp.close()
+ with open(f) as fp:
+ parse_ics_file(fp)
else:
parse_ics_file(sys.stdin)