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