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// Copyright (c) 2012 The Chromium 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 BASE_STRINGS_STRING_SPLIT_H_
#define BASE_STRINGS_STRING_SPLIT_H_
#include <string>
#include <utility>
#include <vector>
#include "base/base_export.h"
#include "base/strings/string16.h"
namespace base {
// 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.
//
// Every substring is trimmed of any leading or trailing white space.
// NOTE: |c| must be in BMP (Basic Multilingual Plane)
BASE_EXPORT void SplitString(const string16& str,
char16 c,
std::vector<string16>* r);
// |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.
BASE_EXPORT void SplitString(const std::string& str,
char c,
std::vector<std::string>* r);
BASE_EXPORT bool SplitStringIntoKeyValues(const std::string& line,
char key_value_delimiter,
std::string* key,
std::vector<std::string>* values);
typedef std::vector<std::pair<std::string, std::string> > StringPairs;;
BASE_EXPORT bool SplitStringIntoKeyValuePairs(
const std::string& line,
char key_value_delimiter,
char key_value_pair_delimiter,
StringPairs* key_value_pairs);
// The same as SplitString, but use a substring delimiter instead of a char.
BASE_EXPORT void SplitStringUsingSubstr(const string16& str,
const string16& s,
std::vector<string16>* r);
BASE_EXPORT void SplitStringUsingSubstr(const std::string& str,
const std::string& s,
std::vector<std::string>* r);
// The same as SplitString, but don't trim white space.
// NOTE: |c| must be in BMP (Basic Multilingual Plane)
BASE_EXPORT void SplitStringDontTrim(const string16& str,
char16 c,
std::vector<string16>* r);
// |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.
BASE_EXPORT void SplitStringDontTrim(const std::string& str,
char c,
std::vector<std::string>* r);
// WARNING: this uses whitespace as defined by the HTML5 spec. If you need
// a function similar to this but want to trim all types of whitespace, then
// factor this out into a function that takes a string containing the characters
// that are treated as whitespace.
//
// Splits the string along whitespace (where whitespace is the five space
// characters defined by HTML 5). Each contiguous block of non-whitespace
// characters is added to result.
BASE_EXPORT void SplitStringAlongWhitespace(const string16& str,
std::vector<string16>* result);
BASE_EXPORT void SplitStringAlongWhitespace(const std::string& str,
std::vector<std::string>* result);
} // namespace base
#endif // BASE_STRINGS_STRING_SPLIT_H_
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