ref: ba4b0723d9e6d6ec72ca54016a932e72fbae46f7
dir: /libnpe/strftime.c/
#include <time.h> size_t strftime(char *s, size_t max, const char *format, const struct tm *tm) { char *s₀, *e, *f, c; int i; Tm t; memset(&t, 0, sizeof(t)); t.sec = tm->tm_sec; t.min = tm->tm_min; t.hour = tm->tm_hour; t.mday = tm->tm_mday; t.mon = tm->tm_mon; t.year = tm->tm_year; t.wday = tm->tm_wday; t.yday = tm->tm_yday; t.tzoff = 0; t.tz = tzload(tm->tm_zone); /* ... = tm->tm_isdst; */ /* FIXME */ *s = 0; s₀ = s; e = s+max; for(i = 0; format[i]; i++){ if((c = format[i]) == '%'){ c = format[i+1]; f = nil; switch(c){ case 'Y': f = "YYYY"; break; case 'm': f = "MM"; break; case 'd': f = "DD"; break; case 'H': f = "hh"; break; case 'M': f = "mm"; break; case 'S': f = "ss"; break; /* FIXME - more formatting */ case '%': break; default: s = seprint(s, e, "%%"); break; } i++; if(f != nil){ s = seprint(s, e, "%τ", tmfmt(&t, f)); continue; } } s = seprint(s, e, "%c", c); } return s-s₀; }