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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_CCTEST_UNICODE_HELPERS_H_
#define V8_CCTEST_UNICODE_HELPERS_H_
#include "src/unicode.h"
static int Ucs2CharLength(unibrow::uchar c) {
if (c == unibrow::Utf8::kIncomplete || c == unibrow::Utf8::kBufferEmpty) {
return 0;
} else if (c < 0xFFFF) {
return 1;
} else {
return 2;
}
}
static int Utf8LengthHelper(const char* s) {
unibrow::Utf8::Utf8IncrementalBuffer buffer(unibrow::Utf8::kBufferEmpty);
unibrow::Utf8::State state = unibrow::Utf8::State::kAccept;
int length = 0;
size_t i = 0;
while (s[i] != '\0') {
unibrow::uchar tmp =
unibrow::Utf8::ValueOfIncremental(s[i], &i, &state, &buffer);
length += Ucs2CharLength(tmp);
}
unibrow::uchar tmp = unibrow::Utf8::ValueOfIncrementalFinish(&state);
length += Ucs2CharLength(tmp);
return length;
}
#endif // V8_CCTEST_UNICODE_HELPERS_H_
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