xtd 0.2.0
format_enum_class.cpp

Show how to use format xtd::format class with enum classes.

#include <xtd/console>
#include <xtd/enum_class>
#include <xtd/environment>
#include <xtd/format>
using namespace xtd;
enum class week_day {
monday,
tuesday,
wednesday,
thursday,
friday,
saturday,
sunday
};
// Only this operator is needed for week_day enum class to be recognized by xtd::string::format()
template<> struct xtd::enum_register<week_day> {
explicit operator auto() const noexcept {return xtd::enum_collection<week_day> {{week_day::monday, "monday"}, {week_day::tuesday, "tuesday"}, {week_day::wednesday, "wednesday"}, {week_day::thursday, "thursday"}, {week_day::friday, "friday"}, {week_day::saturday, "saturday"}, {week_day::sunday, "sunday"}};}
};
enum class cap {title, middle, end};
auto print_week_day(const string& text, week_day value, cap c) {
if (c == cap::title)
console::out
<< "┌──────────────────────┬────────────┬──────────────────────────────────┐" << environment::new_line
<< "│ week_day │ format │ representation │" << environment::new_line
<< "├──────────────────────┼────────────┼──────────────────────────────────┤" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {} │ " << format("{}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:b} │ " << format("{:b}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:b4} │ " << format("{:b4}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:B} │ " << format("{:B}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:B4} │ " << format("{:B4}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:d} │ " << format("{:d}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:d1} │ " << format("{:d1}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:D} │ " << format("{:D}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:D1} │ " << format("{:D1}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:g} │ " << format("{:g}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:G} │ " << format("{:G}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:o} │ " << format("{:o}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:o2} │ " << format("{:o2}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:O} │ " << format("{:O}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:O2} │ " << format("{:O2}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:x} │ " << format("{:x}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:x2} │ " << format("{:x2}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:X} │ " << format("{:X}", value).pad_right(32) << " │" << environment::new_line;
console::out << "│ " << text.pad_right(20) << " │ {:X2} │ " << format("{:X2}", value).pad_right(32) << " │" << environment::new_line;
if (c != cap::end)
console::out << "├──────────────────────┼────────────┼──────────────────────────────────┤" << environment::new_line;
else
console::out << "└──────────────────────┴────────────┴──────────────────────────────────┘" << environment::new_line;
}
auto main() -> int {
print_week_day("week_day::monday", week_day::monday, cap::title);
print_week_day("week_day::thursday", week_day::thursday, cap::middle);
print_week_day("week_day::sunday", week_day::sunday, cap::end);
}
// This code produces the following output :
//
// ┌──────────────────────┬────────────┬──────────────────────────────────┐
// │ week_day │ format │ representation │
// ├──────────────────────┼────────────┼──────────────────────────────────┤
// │ week_day::monday │ {} │ monday │
// │ week_day::monday │ {:b} │ 0 │
// │ week_day::monday │ {:b4} │ 0000 │
// │ week_day::monday │ {:B} │ 0 │
// │ week_day::monday │ {:B4} │ 0000 │
// │ week_day::monday │ {:d} │ 0 │
// │ week_day::monday │ {:d1} │ 0 │
// │ week_day::monday │ {:D} │ 0 │
// │ week_day::monday │ {:D1} │ 0 │
// │ week_day::monday │ {:g} │ monday │
// │ week_day::monday │ {:G} │ monday │
// │ week_day::monday │ {:o} │ 0 │
// │ week_day::monday │ {:o2} │ 00 │
// │ week_day::monday │ {:O} │ 0 │
// │ week_day::monday │ {:O2} │ 00 │
// │ week_day::monday │ {:x} │ 0 │
// │ week_day::monday │ {:x2} │ 00 │
// │ week_day::monday │ {:X} │ 0 │
// │ week_day::monday │ {:X2} │ 00 │
// ├──────────────────────┼────────────┼──────────────────────────────────┤
// │ week_day::thursday │ {} │ thursday │
// │ week_day::thursday │ {:b} │ 11 │
// │ week_day::thursday │ {:b4} │ 0011 │
// │ week_day::thursday │ {:B} │ 11 │
// │ week_day::thursday │ {:B4} │ 0011 │
// │ week_day::thursday │ {:d} │ 3 │
// │ week_day::thursday │ {:d1} │ 3 │
// │ week_day::thursday │ {:D} │ 3 │
// │ week_day::thursday │ {:D1} │ 3 │
// │ week_day::thursday │ {:g} │ thursday │
// │ week_day::thursday │ {:G} │ thursday │
// │ week_day::thursday │ {:o} │ 3 │
// │ week_day::thursday │ {:o2} │ 03 │
// │ week_day::thursday │ {:O} │ 3 │
// │ week_day::thursday │ {:O2} │ 03 │
// │ week_day::thursday │ {:x} │ 3 │
// │ week_day::thursday │ {:x2} │ 03 │
// │ week_day::thursday │ {:X} │ 3 │
// │ week_day::thursday │ {:X2} │ 03 │
// ├──────────────────────┼────────────┼──────────────────────────────────┤
// │ week_day::sunday │ {} │ sunday │
// │ week_day::sunday │ {:b} │ 110 │
// │ week_day::sunday │ {:b4} │ 0110 │
// │ week_day::sunday │ {:B} │ 110 │
// │ week_day::sunday │ {:B4} │ 0110 │
// │ week_day::sunday │ {:d} │ 6 │
// │ week_day::sunday │ {:d1} │ 6 │
// │ week_day::sunday │ {:D} │ 6 │
// │ week_day::sunday │ {:D1} │ 6 │
// │ week_day::sunday │ {:g} │ sunday │
// │ week_day::sunday │ {:G} │ sunday │
// │ week_day::sunday │ {:o} │ 6 │
// │ week_day::sunday │ {:o2} │ 06 │
// │ week_day::sunday │ {:O} │ 6 │
// │ week_day::sunday │ {:O2} │ 06 │
// │ week_day::sunday │ {:x} │ 6 │
// │ week_day::sunday │ {:x2} │ 06 │
// │ week_day::sunday │ {:X} │ 6 │
// │ week_day::sunday │ {:X2} │ 06 │
// └──────────────────────┴────────────┴──────────────────────────────────┘
xtd::console::out
static std::ostream out
Gets the standard output stream. A std::basic_ostream<char_t> that represents the standard output str...
Definition console.hpp:52
xtd::environment::new_line
static xtd::string new_line() noexcept
Gets the newline string defined for this environment.
xtd::format
xtd::string format(const xtd::string &fmt, args_t &&... args)
Writes the text representation of the specified arguments list, to string using the specified format ...
Definition format.hpp:20
xtd::enum_collection
std::vector< std::pair< enum_t, xtd::string > > enum_collection
Represents a pair of an enum_t value and a string of an enum of type enum_t.
Definition enum_collection.hpp:24
xtd::console_key::c
@ c
The C key.
Definition console_key.hpp:92
xtd::day_of_week::tuesday
@ tuesday
Indicates tuesday.
Definition day_of_week.hpp:31
xtd::day_of_week::saturday
@ saturday
Indicates saturday.
Definition day_of_week.hpp:39
xtd::day_of_week::sunday
@ sunday
Indicates sunday.
Definition day_of_week.hpp:27
xtd::day_of_week::monday
@ monday
Indicates monday.
Definition day_of_week.hpp:29
xtd::day_of_week::wednesday
@ wednesday
Indicates wednesday.
Definition day_of_week.hpp:33
xtd::day_of_week::thursday
@ thursday
Indicates thursday.
Definition day_of_week.hpp:35
xtd::day_of_week::friday
@ friday
Indicates friday.
Definition day_of_week.hpp:37
xtd::forms::mouse_buttons::middle
@ middle
he middle mouse button was pressed.
Definition mouse_buttons.hpp:30
xtd::text
Contains classes that represent ASCII and Unicode character encodings; abstract base classes for conv...
Definition basic_string_builder.hpp:16
xtd
The xtd namespace contains all fundamental classes to access Hardware, Os, System,...
Definition abstract_object.hpp:8
xtd::end
const_iterator end() const
Returns an iterator to the end.
Definition read_only_span.hpp:213
xtd::enum_register
Provides the registration struct for enumerations.
Definition enum_register.hpp:38
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