Determine language code and type of format for address.

third_party/libaddressinput/chromium/cpp/src/util/string_util.h

+// Copyright (C) 2014 Google Inc.
+//
+// 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.
+
+#ifndef I18N_ADDRESSINPUT_UTIL_STRING_UTIL_H_
+#define I18N_ADDRESSINPUT_UTIL_STRING_UTIL_H_
+
+#include <ctime>
+#include <string>
+#include <vector>
+
+namespace i18n {
+namespace addressinput {
+
+// Removes the language variation from |language_code|, unless the variation is
+// "latn". For example, returns "zh" for "zh-hans". Returns "zh-latn" for
+// "zh-latn".
+std::string NormalizeLanguageCode(const std::string& language_code);
+
+// Returns |time| serialized into a string.
+std::string TimeToString(time_t time);
+
+// Unicode (UTF-8) approximate string comparison. Designed for matching user
+// input against canonical data. Returns true for a match.
+bool LooseStringCompare(const std::string& a, const std::string& b);
+
+// Splits |str| into a vector of strings delimited by |c|, placing the results
+// in |r|. If several instances of |c| are contiguous, or if |str| begins with
+// or ends with |c|, then an empty string is inserted.
+//
+// |str| should not be in a multi-byte encoding like Shift-JIS or GBK in which
+// the trailing byte of a multi-byte character can be in the ASCII range.
+// UTF-8, and other single/multi-byte ASCII-compatible encodings are OK.
+// Note: |c| must be in the ASCII range.
+//
+// The original source code is from:
+// http://src.chromium.org/viewvc/chrome/trunk/src/base/strings/string_split.h?revision=236210
+//
+// Modifications from original:
+//   1) Supports only std::string type.
+//   2) Does not trim whitespace.
+void SplitString(const std::string& str, char c, std::vector<std::string>* r);
+
+}  // namespace addressinput
+}  // namespace i18n
+
+#endif  // I18N_ADDRESSINPUT_UTIL_STRING_UTIL_H_