| 1 | /* /usr/lib/calendar produces an egrep -f file |
| 2 | that will select today's and tomorrow's |
| 3 | calendar entries, with special weekend provisions |
| 4 | |
| 5 | used by calendar command |
| 6 | */ |
| 7 | #include <time.h> |
| 8 | |
| 9 | #define DAY (3600*24L) |
| 10 | |
| 11 | char *month[] = { |
| 12 | "[Jj]an", |
| 13 | "[Ff]eb", |
| 14 | "[Mm]ar", |
| 15 | "[Aa]pr", |
| 16 | "[Mm]ay", |
| 17 | "[Jj]un", |
| 18 | "[Jj]ul", |
| 19 | "[Aa]ug", |
| 20 | "[Ss]ep", |
| 21 | "[Oo]ct", |
| 22 | "[Nn]ov", |
| 23 | "[Dd]ec" |
| 24 | }; |
| 25 | struct tm *localtime(); |
| 26 | |
| 27 | tprint(t) |
| 28 | long t; |
| 29 | { |
| 30 | struct tm *tm; |
| 31 | tm = localtime(&t); |
| 32 | printf("(^|[ (,;])((%s[^ ]* *|%d/)0*%d)([^0123456789]|$)\n", |
| 33 | month[tm->tm_mon], tm->tm_mon + 1, tm->tm_mday); |
| 34 | } |
| 35 | |
| 36 | main() |
| 37 | { |
| 38 | long t; |
| 39 | time(&t); |
| 40 | tprint(t); |
| 41 | switch(localtime(&t)->tm_wday) { |
| 42 | case 5: |
| 43 | t += DAY; |
| 44 | tprint(t); |
| 45 | case 6: |
| 46 | t += DAY; |
| 47 | tprint(t); |
| 48 | default: |
| 49 | t += DAY; |
| 50 | tprint(t); |
| 51 | } |
| 52 | } |