philip.liard@gmail.com | b905691 | 2011-08-18 11:41:24 +0000 | [diff] [blame] | 1 | // Copyright (C) 2011 The Libphonenumber Authors |
philip.liard@gmail.com | 1ad5e5b | 2011-07-01 08:22:06 +0000 | [diff] [blame] | 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | #include <string> |
| 16 | |
| 17 | #include "phonenumbers/utf/unicodetext.h" |
| 18 | |
| 19 | namespace i18n { |
| 20 | namespace phonenumbers { |
| 21 | |
| 22 | using std::string; |
| 23 | |
| 24 | struct NormalizeUTF8 { |
| 25 | // Put a UTF-8 string in ASCII digits: All decimal digits (Nd) replaced by |
| 26 | // their ASCII counterparts; all other characters are copied from input to |
| 27 | // output. |
| 28 | static string NormalizeDecimalDigits(const string& number) { |
| 29 | string normalized; |
| 30 | UnicodeText number_as_unicode; |
| 31 | number_as_unicode.PointToUTF8(number.data(), number.size()); |
| 32 | for (UnicodeText::const_iterator it = number_as_unicode.begin(); |
| 33 | it != number_as_unicode.end(); |
| 34 | ++it) { |
| 35 | int32_t digitValue = u_charDigitValue(*it); |
| 36 | if (digitValue == -1) { |
| 37 | // Not a decimal digit. |
| 38 | char utf8[4]; |
| 39 | int len = it.get_utf8(utf8); |
| 40 | normalized.append(utf8, len); |
| 41 | } else { |
| 42 | normalized.push_back('0' + digitValue); |
| 43 | } |
| 44 | } |
| 45 | return normalized; |
| 46 | } |
| 47 | }; |
| 48 | |
| 49 | } // namespace phonenumbers |
| 50 | } // namespace i18n |