87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
#include <ostd/algorithm.hh>
|
|
#include <ostd/vector.hh>
|
|
#include <ostd/map.hh>
|
|
#include <ostd/range.hh>
|
|
#include <ostd/io.hh>
|
|
#include <ostd/tuple.hh>
|
|
|
|
using namespace ostd;
|
|
|
|
struct Foo {
|
|
};
|
|
|
|
/* implementing formatting for custom objects - external function */
|
|
template<typename R>
|
|
bool to_format(const Foo &, R &writer, const FormatSpec &fs) {
|
|
switch (fs.spec()) {
|
|
case 'i':
|
|
writer.put_string("Foo1");
|
|
break;
|
|
default:
|
|
writer.put_string("Foo2");
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
struct Bar {
|
|
/* implementing formatting for custom objects - method */
|
|
template<typename R>
|
|
bool to_format(R &writer, const FormatSpec &fs) const {
|
|
switch (fs.spec()) {
|
|
case 'i':
|
|
writer.put_string("Bar1");
|
|
break;
|
|
default:
|
|
writer.put_string("Bar2");
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
int main() {
|
|
Vector<int> x = { 5, 10, 15, 20 };
|
|
writefln("[%(%s|%)]", x);
|
|
|
|
int y[] = { 2, 4, 8, 16, 32 };
|
|
writefln("{ %(%s, %) }", y);
|
|
|
|
writefln("[\n%([ %(%s, %) ]%|,\n%)\n]", map(range(10), [](int v) {
|
|
return range(v + 1);
|
|
}));
|
|
|
|
Map<String, int> m = {
|
|
{ "foo", 5 },
|
|
{ "bar", 10 },
|
|
{ "baz", 15 }
|
|
};
|
|
/* strings and chars are automatically escaped */
|
|
writefln("{ %#(%s: %d, %) }", m);
|
|
/* can override escaping with the - flag,
|
|
* # flag expands the element into multiple values
|
|
*/
|
|
writefln("{ %-#(%s: %d, %) }", m);
|
|
|
|
/* tuple format test */
|
|
Tuple<int, float, const char *> xt[] = {
|
|
make_tuple(5, 3.14f, "foo"),
|
|
make_tuple(3, 1.23f, "bar"),
|
|
make_tuple(9, 8.66f, "baz")
|
|
};
|
|
writefln("[ %#(<%d|%f|%s>%|, %) ]", xt);
|
|
|
|
/* custom format */
|
|
writefln("%s", Foo());
|
|
writefln("%i", Foo());
|
|
|
|
/* custom format via method */
|
|
writefln("%s", Bar());
|
|
writefln("%i", Bar());
|
|
|
|
/* format into string */
|
|
auto s = appender<String>();
|
|
format(s, "hello %s", "world");
|
|
writeln(s.get());
|
|
}
|