| public static fromGmtOffset ( int offset ) : TimeZone | ||
| offset | int | |
| return | TimeZone | |
//////////////////////////////////////////////////////////////////////////
// Parse
//////////////////////////////////////////////////////////////////////////
internal DateTime parseDateTime(string s, TimeZone defTz, bool check)
{
try
{
// parse into fields
tzOffset = System.Int32.MaxValue;
parse(s);
// now figure out what timezone to use
TimeZone.Rule defRule = defTz.rule(year);
if (tzName != null)
{
// use defTz if tzName was specified and matches any variations of defTz
if (tzName == defTz.name() ||
tzName == defRule.stdAbbr ||
tzName == defRule.dstAbbr)
{
tz = defTz;
}
// try to map tzName to TimeZone, use defTz as fallback
else
{
tz = TimeZone.fromStr(tzName, false);
if (tz == null)
{
tz = defTz;
}
}
}
// if tzOffset was specified...
else if (tzOffset != System.Int32.MaxValue)
{
// figure out what expected offset was for defTz
int time = hour * 3600 + min * 60 + sec;
int defOffset = defRule.offset + TimeZone.dstOffset(defRule, year, (int)mon.ordinal(), day, time);
// if specified offset matches expected offset for defTz then
// use defTz, otherwise use a vanilla GMT+/- timezone
if (tzOffset == defOffset)
{
tz = defTz;
}
else
{
tz = TimeZone.fromGmtOffset(tzOffset);
}
}
// no tzName or tzOffset specified, use defTz
else
{
tz = defTz;
}
// construct DateTime
return(new DateTime(year, (int)mon.ordinal(), day, hour, min, sec, ns, tzOffset, tz));
}
catch (Exception) {}
if (check)
{
throw ParseErr.make("DateTime", s).val;
}
return(null);
}
private static DateTime fromStr(string s, bool check, bool iso)
{
try
{
// YYYY-MM-DD'T'hh:mm:ss
int year = num(s, 0) * 1000 + num(s, 1) * 100 + num(s, 2) * 10 + num(s, 3);
int month = num(s, 5) * 10 + num(s, 6) - 1;
int day = num(s, 8) * 10 + num(s, 9);
int hour = num(s, 11) * 10 + num(s, 12);
int min = num(s, 14) * 10 + num(s, 15);
int sec = num(s, 17) * 10 + num(s, 18);
// check separator symbols
if (s[4] != '-' || s[7] != '-' ||
s[10] != 'T' || s[13] != ':' ||
s[16] != ':')
{
throw new System.Exception();
}
// optional .FFFFFFFFF
int i = 19;
int ns = 0;
int tenth = 100000000;
if (s[i] == '.')
{
++i;
while (true)
{
int c = s[i];
if (c < '0' || c > '9')
{
break;
}
ns += (c - '0') * tenth;
tenth /= 10;
++i;
}
}
// zone offset
int offset = 0;
int ch = s[i++];
if (ch != 'Z')
{
int offHour = num(s, i++) * 10 + num(s, i++);
if (s[i++] != ':')
{
throw new System.Exception();
}
int offMin = num(s, i++) * 10 + num(s, i++);
offset = offHour * 3600 + offMin * 60;
if (ch == '-')
{
offset = -offset;
}
else if (ch != '+')
{
throw new System.Exception();
}
}
// timezone - we share this method b/w fromStr and fromIso
TimeZone tz;
if (iso)
{
if (i < s.Length)
{
throw new System.Exception();
}
tz = TimeZone.fromGmtOffset(offset);
}
else
{
if (s[i++] != ' ')
{
throw new System.Exception();
}
tz = TimeZone.fromStr(s.Substring(i), true);
}
return(new DateTime(year, month, day, hour, min, sec, ns, offset, tz));
}
catch (System.Exception)
{
if (!check)
{
return(null);
}
throw ParseErr.make("DateTime", s).val;
}
}
