Common C++ classes and routines used by my applications such as argument parser, IO and conversion utilities
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#include "./timespan.h"
#include "../conversion/stringconversion.h"
#include <sstream>
#include <cmath>
#include <iomanip>
#include <vector>
using namespace std;
using namespace ChronoUtilities;
using namespace ConversionUtilities;
/*!
* \class ChronoUtilities::TimeSpan
* \brief Represents a time interval.
* \remarks Time values are measured in 100-nanosecond units called ticks.
*/
/*!
* \brief Parses the given std::string \a str as TimeSpan.
*/
TimeSpan TimeSpan::fromString(const string &str)
{
return TimeSpan::fromString(str, ':');
}
/*!
* \brief Parses the given std::string \a str as TimeSpan.
*/
TimeSpan TimeSpan::fromString(const string &str, char separator)
{
vector<double> parts;
string::size_type start = 0;
string::size_type end = str.find(separator, start);
while(true) {
parts.push_back(stringToNumber<double>(str.substr(start, end - start)));
if(end == string::npos) {
break;
}
start = end + 1;
if(start >= str.size()) {
break;
}
end = str.find(separator, start);
}
switch(parts.size()) {
case 0:
return TimeSpan();
case 1:
return TimeSpan::fromSeconds(parts.front());
case 2:
return TimeSpan::fromMinutes(parts.front()) + TimeSpan::fromSeconds(parts[1]);
case 3:
return TimeSpan::fromHours(parts.front()) + TimeSpan::fromMinutes(parts[1]) + TimeSpan::fromSeconds(parts[2]);
default:
return TimeSpan::fromDays(parts.front()) + TimeSpan::fromHours(parts[1]) + TimeSpan::fromMinutes(parts[2]) + TimeSpan::fromSeconds(parts[3]);
}
}
/*!
* \brief Converts the value of the current TimeSpan object to its equivalent std::string representation
* according the given \a format.
*
* If \a noMilliseconds is true the time interval will be rounded to full seconds.
*/
string TimeSpan::toString(TimeSpanOutputFormat format, bool noMilliseconds) const
{
string result;
toString(result, format, noMilliseconds);
return result;
}
/*!
* \brief Converts the value of the current TimeSpan object to its equivalent std::string representation
* according the given \a format.
*
* If \a noMilliseconds is true the time interval will be rounded to full seconds.
*
* The string representation will be stored in \a result.
*/
void TimeSpan::toString(string &result, TimeSpanOutputFormat format, bool noMilliseconds) const
{
stringstream s(stringstream::in | stringstream::out);
if(isNegative())
s << "- ";
switch(format) {
case TimeSpanOutputFormat::Normal:
s << setfill('0') << setw(2) << floor(fabs(totalHours())) << ":" << setw(2) << minutes() << ":" << setw(2) << seconds() << " ";
break;
case TimeSpanOutputFormat::WithMeasures:
if(isNull()) {
s << "0 s ";
} else if(totalMilliseconds() < 1.0) {
s << setprecision(2) << (m_ticks / 10.0) << " µs ";
} else {
if(days()) {
s << days() << " d ";
}
if(hours()) {
s << hours() << " h ";
}
if(minutes()) {
s << minutes() << " min ";
}
if(seconds()) {
s << seconds() << " s ";
}
if(!noMilliseconds && milliseconds()) {
s << milliseconds() << " ms ";
}
}
break;
}
result = s.str().substr(0, static_cast<string::size_type>(s.tellp()) - 1);
}