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// This source code is released into the public domain.
#include <catch2/catch_test_macros.hpp>
import nihil.std;
import nihil.core;
namespace {
TEST_CASE("next_word: basic", "[next_word]")
{
using namespace std::literals;
auto s = "foo bar baz"sv;
auto words = nihil::next_word(s);
REQUIRE(words.first == "foo");
REQUIRE(words.second == " bar baz");
auto word = nihil::next_word(&s);
REQUIRE(word == "foo");
REQUIRE(s == " bar baz");
}
TEST_CASE("next_word: multiple spaces", "[next_word]")
{
using namespace std::literals;
auto s = "foo bar baz"sv;
auto words = nihil::next_word(s);
REQUIRE(words.first == "foo");
REQUIRE(words.second == " bar baz");
auto word = nihil::next_word(&s);
REQUIRE(word == "foo");
REQUIRE(s == " bar baz");
}
TEST_CASE("next_word: leading spaces", "[next_word]")
{
using namespace std::literals;
auto s = " \tfoo bar baz"sv;
auto words = nihil::next_word(s);
REQUIRE(words.first == "foo");
REQUIRE(words.second == " bar baz");
auto word = nihil::next_word(&s);
REQUIRE(word == "foo");
REQUIRE(s == " bar baz");
}
TEST_CASE("next_word: locale", "[next_word]")
{
using namespace std::literals;
auto s = L"\u2003foo\u2003bar\u2003baz"sv;
auto words = nihil::next_word(s);
REQUIRE(words.first == s);
words = nihil::next_word(s, std::locale("C.UTF-8"));
REQUIRE(words.first == L"foo");
REQUIRE(words.second == L"\u2003bar\u2003baz");
}
} // anonymous namespace
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