diff options
Diffstat (limited to 'src/time/strptime.c')
| -rw-r--r-- | src/time/strptime.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/time/strptime.c b/src/time/strptime.c new file mode 100644 index 00000000..db72e610 --- /dev/null +++ b/src/time/strptime.c @@ -0,0 +1,178 @@ +#include <stdio.h> +#include <stdlib.h> +#include <langinfo.h> +#include <time.h> + +const char *__langinfo(nl_item); + +char *strptime(const char *s, const char *f, struct tm *tm) +{ + return NULL; +} + +#if 0 + +char *strptime(const char *s, const char *f, struct tm *tm) +{ + nl_item item; + int *dest; + const char *fmt; + for (; *f; f++) { + if (isspace(*f)) goto whitespace; + if (*f == '%') { +do_fmt: + switch (*++f) { + case '%': + goto literal; + case 'E': + case 'O': + goto do_fmt; + case 'a': + item = ABDAY_1 + tm->tm_wday; + goto nl_strcat; + case 'A': + item = DAY_1 + tm->tm_wday; + goto nl_strcat; + case 'h': + case 'b': + item = ABMON_1 + tm->tm_mon; + goto nl_strcat; + case 'B': + item = MON_1 + tm->tm_mon; + goto nl_strcat; + case 'c': + item = D_T_FMT; + goto nl_strftime; + case 'C': + val = (1900+tm->tm_year) / 100; + fmt = "%02d"; + goto number; + case 'd': + val = tm->tm_mday; + fmt = "%02d"; + goto number; + case 'D': + fmt = "%m/%d/%y"; + goto recu_strftime; + case 'e': + val = tm->tm_mday; + fmt = "%2d"; + goto number; + case 'F': + fmt = "%Y-%m-%d"; + goto recu_strftime; + case 'g': + // FIXME + val = 0; //week_based_year(tm)%100; + fmt = "%02d"; + goto number; + case 'G': + // FIXME + val = 0; //week_based_year(tm); + fmt = "%04d"; + goto number; + case 'H': + val = tm->tm_hour; + fmt = "%02d"; + goto number; + case 'I': + val = tm->tm_hour; + if (!val) val = 12; + else if (val > 12) val -= 12; + fmt = "%02d"; + goto number; + case 'j': + val = tm->tm_yday+1; + fmt = "%03d"; + goto number; + case 'm': + val = tm->tm_mon+1; + fmt = "%02d"; + goto number; + case 'M': + val = tm->tm_min; + fmt = "%02d"; + goto number; + case 'n': + case 't': + goto whitespace; + case 'p': + item = tm->tm_hour >= 12 ? PM_STR : AM_STR; + goto nl_strcat; + case 'r': + item = T_FMT_AMPM; + goto nl_strftime; + case 'R': + fmt = "%H:%M"; + goto recu_strftime; + case 'S': + val = tm->tm_sec; + fmt = "%02d"; + goto number; + case 'T': + fmt = "%H:%M:%S"; + goto recu_strftime; + case 'u': + val = tm->tm_wday ? tm->tm_wday : 7; + fmt = "%d"; + goto number; + case 'U': + case 'V': + case 'W': + // FIXME: week number mess.. + continue; + case 'w': + val = tm->tm_wday; + fmt = "%d"; + goto number; + case 'x': + item = D_FMT; + goto nl_strftime; + case 'X': + item = T_FMT; + goto nl_strftime; + case 'y': + val = tm->tm_year % 100; + fmt = "%02d"; + goto number; + case 'Y': + val = tm->tm_year + 1900; + fmt = "%04d"; + goto number; + case 'z': + if (tm->tm_isdst < 0) continue; + val = timezone + (tm->tm_isdst) ? __dst_offset : 0; + l += snprintf(s+l, n-l, "%+02d%02d", val/60, abs(val%60)); + continue; + case 'Z': + if (tm->tm_isdst < 0 || !tzname[0] || !tzname[0][0]) + continue; + l += snprintf(s+l, n-l, "%s", tzname[!!tm->tm_isdst]); + continue; + } + default: + return NULL; + } +literal: + if (*s++ != *f) return NULL; + continue; +whitespace: + while(isspace(*s)) s++; + continue; +number: + l += snprintf(s+l, n-l, fmt, val); + continue; +nl_strcat: + l += snprintf(s+l, n-l, "%s", __langinfo(item)); + continue; +nl_strftime: + fmt = __langinfo(item); +recu_strftime: + l += strftime(s+l, n-l, fmt, tm); + } + if (l >= n) return 0; + s[l] = 0; + return l; +} + +#endif |