X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Ftime%2Fdatetime.cpp;h=e011f3b2ac0b8a3681048bd1c59e17194dbda03c;hp=bf824112ac9e202a97d3f0158c42d8bc86d79286;hb=HEAD;hpb=c7afef88380ebebc8c2b04e48664d73281ec8848

diff --git a/source/time/datetime.cpp b/source/time/datetime.cpp
index bf82411..e011f3b 100644
--- a/source/time/datetime.cpp
+++ b/source/time/datetime.cpp
@@ -1,9 +1,9 @@
 #include <cstdlib>
 #include <stdexcept>
 #include <msp/strings/format.h>
+#include <msp/strings/regex.h>
 #include "datetime.h"
 #include "timestamp.h"
-#include "units.h"
 
 using namespace std;
 
@@ -29,7 +29,7 @@ inline unsigned char month_days(int y, unsigned char m)
 }
 
 template<typename T>
-inline int cmp_(T a, T b)
+inline int _cmp(T a, T b)
 {
 	if(a<b)
 		return -1;
@@ -45,52 +45,32 @@ namespace Time {
 
 DateTime::DateTime(const TimeStamp &ts)
 {
-	init(ts);
+	add_raw(ts.raw());
 }
 
-DateTime::DateTime(const TimeStamp &ts, const TimeZone &tz)
+DateTime::DateTime(const TimeStamp &ts, const TimeZone &tz):
+	DateTime(ts)
 {
-	init(ts);
 	convert_timezone(tz);
 }
 
-DateTime::DateTime(int y, unsigned char m, unsigned char d)
-{
-	init(y, m, d, 0, 0, 0, 0);
-}
-
-DateTime::DateTime(int y, unsigned char m, unsigned char d, unsigned char h, unsigned char n, unsigned char s)
-{
-	init(y, m, d, h, n, s, 0);
-}
-
-DateTime::DateTime(int y, unsigned char m, unsigned char d, unsigned char h, unsigned char n, unsigned char s, unsigned u)
-{
-	init(y, m, d, h, n, s, u);
-}
-
-void DateTime::init(const TimeStamp &ts)
-{
-	year = 1970;
-	month = 1;
-	mday = 1;
-	hour = 0;
-	minute = 0;
-	second = 0;
-	usec = 0;
-	add_raw(ts.raw());
-}
-
-void DateTime::init(int y, unsigned char m, unsigned char d, unsigned char h, unsigned char n, unsigned char s, unsigned u)
+DateTime::DateTime(int y, unsigned char m, unsigned char d):
+	DateTime(y, m, d, 0, 0, 0, 0)
+{ }
+
+DateTime::DateTime(int y, unsigned char m, unsigned char d, unsigned char h, unsigned char n, unsigned char s):
+	DateTime(y, m, d, h, n, s, 0)
+{ }
+
+DateTime::DateTime(int y, unsigned char m, unsigned char d, unsigned char h, unsigned char n, unsigned char s, unsigned u):
+	year(y),
+	month(m),
+	mday(d),
+	hour(h),
+	minute(n),
+	second(s),
+	usec(u)
 {
-	year = y;
-	month = m;
-	mday = d;
-	hour = h;
-	minute = n;
-	second = s;
-	usec = u;
-
 	if(usec>=1000000)
 		throw out_of_range("DateTime::DateTime usec");
 	if(second>=60)
@@ -105,6 +85,46 @@ void DateTime::init(int y, unsigned char m, unsigned char d, unsigned char h, un
 		throw out_of_range("DateTime::DateTime mday");
 }
 
+DateTime DateTime::parse_rfc3339(const string &str)
+{
+	static Regex re("^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(.([0-9]+))?(Z|[-+]([0-9]{2}):([0-9]{2}))$");
+
+	RegMatch m = re.match(str);
+	if(!m)
+		throw invalid_argument("DateTime::parse_rfc3339");
+
+	unsigned year = lexical_cast<unsigned>(m[1].str);
+	unsigned month = lexical_cast<unsigned>(m[2].str);
+	unsigned mday = lexical_cast<unsigned>(m[3].str);
+	unsigned hr = lexical_cast<unsigned>(m[4].str);
+	unsigned minute = lexical_cast<unsigned>(m[5].str);
+	unsigned second = lexical_cast<unsigned>(m[6].str);
+	unsigned us = 0;
+	const string &sec_frac = m[8].str;
+	if(!sec_frac.empty())
+	{
+		us = lexical_cast<unsigned>(sec_frac);
+		for(unsigned i=sec_frac.size(); i<6; ++i)
+			us *= 10;
+		for(unsigned i=sec_frac.size(); i>6; --i)
+			us /= 10;
+	}
+
+	DateTime result = DateTime(year, month, mday, hr, minute, second, us);
+
+	int tzoff = 0;
+	if(m[9].str!="Z")
+	{
+		tzoff = lexical_cast<unsigned>(m[10].str)*60+lexical_cast<unsigned>(m[11].str);
+		if(m[9].str[0]=='-')
+			tzoff = -tzoff;
+	}
+
+	result.set_timezone(tzoff);
+
+	return result;
+}
+
 void DateTime::add_days(int days)
 {
 	int new_year = year;
@@ -211,19 +231,19 @@ DateTime &DateTime::operator-=(const TimeDelta &td)
 
 int DateTime::cmp(const DateTime &dt) const
 {
-	if(int c = cmp_(year, dt.year))
+	if(int c = _cmp(year, dt.year))
 		return c;
-	if(int c = cmp_(month, dt.month))
+	if(int c = _cmp(month, dt.month))
 		return c;
-	if(int c = cmp_(mday, dt.mday))
+	if(int c = _cmp(mday, dt.mday))
 		return c;
-	if(int c = cmp_(hour, dt.hour))
+	if(int c = _cmp(hour, dt.hour))
 		return c;
-	if(int c = cmp_(minute, dt.minute))
+	if(int c = _cmp(minute, dt.minute))
 		return c;
-	if(int c = cmp_(second, dt.second))
+	if(int c = _cmp(second, dt.second))
 		return c;
-	if(int c = cmp_(usec, dt.usec))
+	if(int c = _cmp(usec, dt.usec))
 		return c;
 	return 0;
 }
@@ -248,7 +268,7 @@ TimeStamp DateTime::get_timestamp() const
 string DateTime::format(const string &fmt) const
 {
 	string result;
-	for(string::const_iterator i=fmt.begin(); i!=fmt.end(); ++i)
+	for(auto i=fmt.begin(); i!=fmt.end(); ++i)
 	{
 		if(*i=='%')
 		{
@@ -286,6 +306,8 @@ string DateTime::format(const string &fmt) const
 string DateTime::format_rfc3339() const
 {
 	string result = format("%Y-%m-%dT%H:%M:%S");
+	if(usec)
+		result += Msp::format(".%06d", usec);
 	if(const TimeDelta &offs = zone.get_offset())
 	{
 		int m = abs(static_cast<int>(offs/Time::min));