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// Copyright (C) 2011 The Libphonenumber Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <string>
#include "phonenumbers/utf/unicodetext.h"
namespace i18n {
namespace phonenumbers {
using std::string;
struct NormalizeUTF8 {
// Put a UTF-8 string in ASCII digits: All decimal digits (Nd) replaced by
// their ASCII counterparts; all other characters are copied from input to
// output.
static string NormalizeDecimalDigits(const string& number) {
string normalized;
UnicodeText number_as_unicode;
number_as_unicode.PointToUTF8(number.data(), number.size());
for (UnicodeText::const_iterator it = number_as_unicode.begin();
it != number_as_unicode.end();
++it) {
int32_t digitValue = u_charDigitValue(*it);
if (digitValue == -1) {
// Not a decimal digit.
char utf8[4];
int len = it.get_utf8(utf8);
normalized.append(utf8, len);
} else {
normalized.push_back('0' + digitValue);
}
}
return normalized;
}
};
} // namespace phonenumbers
} // namespace i18n
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