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// file : tests/basic/driver.cpp
// copyright : Copyright (c) 2009-2019 Code Synthesis Tools CC
// license : Unicode License; see accompanying LICENSE file
#include <ios>
#include <string>
#include <cassert>
#include <cstdint>
#include <iostream>
#include <stdexcept> // runtime_error
#include <unicode/ucnv.h>
#include <unicode/utypes.h>
#include <unicode/uclean.h>
#include <unicode/ustdio.h> // u_strFromUTF8()
#include <unicode/ustring.h> // u_fprintf(), u_get_stdout()
#include <unicode/unistr.h> // UnicodeString
#include <unicode/ustream.h> // operator<<(std::ostream)
// Usage: argv[0]
//
// Read UTF-8 encoded lines from stdin and print them to stdout using C and
// C++ APIs.
//
int
main ()
{
using namespace std;
using namespace icu;
ucnv_setDefaultName ("UTF-8");
cin.exceptions (ios::badbit);
cout.exceptions (ios::badbit | ios::failbit);
int r (0);
try
{
for (string l; getline (cin, l); )
{
// Print using C API.
//
{
// Make sure the converted input string is always NUL-terminated.
//
UChar buf[1024 + 1];
buf[1024] = 0x0;
int32_t n;
UErrorCode e (U_ZERO_ERROR);
auto validate = [&e] (const char* what)
{
if (U_FAILURE (e))
throw runtime_error (
string (what) + " failed: " + u_errorName (e));
};
u_strFromUTF8 (buf, 1024, &n,
l.c_str (), static_cast<int32_t> (l.size ()),
&e);
validate ("u_strFromUTF8()");
assert (n <= 1024);
u_fprintf (u_get_stdout (), "%S\n", buf);
}
// Print using C++ API.
//
cout << UnicodeString::fromUTF8 (l) << endl;
}
}
catch (const runtime_error& e)
{
cerr << e.what () << endl;
r = 1;
}
// Free any heap storage that has been potentially allocated and held by the
// ICU library.
//
u_cleanup ();
return r;
}
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