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time/ISO8601: allow omitting the time of day

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This commit is contained in:
Max Kellermann
2019-08-19 22:30:31 +02:00
parent bbe403f141
commit ba4cd47fd8
3 changed files with 30 additions and 4 deletions
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26
src/time/ISO8601.cxx
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@@ -70,14 +70,32 @@ ParseISO8601(const char *s)
throw std::runtime_error("Time parsing not implemented on Windows");
#else
struct tm tm{};
const char *end = strptime(s, "%FT%TZ", &tm);
if (end == nullptr || *end != 0)
throw std::runtime_error("Failed to parse time stamp");
std::chrono::system_clock::duration precision = std::chrono::seconds(1);
/* parse the date */
const char *end = strptime(s, "%F", &tm);
if (end == nullptr)
throw std::runtime_error("Failed to parse date");
s = end;
std::chrono::system_clock::duration precision = std::chrono::hours(24);
/* parse the time of day */
if (*s == 'T') {
++s;
end = strptime(s, "%TZ", &tm);
if (end == nullptr)
throw std::runtime_error("Failed to parse time of day");
s = end;
precision = std::chrono::seconds(1);
}
auto tp = TimeGm(tm);
if (*s != 0)
throw std::runtime_error("Garbage at end of time stamp");
return std::make_pair(tp, precision);
#endif /* !_WIN32 */
}