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// Copyright 2013 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 NET_BASE_URL_UTIL_H_
#define NET_BASE_URL_UTIL_H_
#include <string>
#include "net/base/net_export.h"
class GURL;
namespace net {
// Returns a new GURL by appending the given query parameter name and the
// value. Unsafe characters in the name and the value are escaped like
// %XX%XX. The original query component is preserved if it's present.
//
// Examples:
//
// AppendQueryParameter(GURL("http://example.com"), "name", "value").spec()
// => "http://example.com?name=value"
// AppendQueryParameter(GURL("http://example.com?x=y"), "name", "value").spec()
// => "http://example.com?x=y&name=value"
NET_EXPORT GURL AppendQueryParameter(const GURL& url,
const std::string& name,
const std::string& value);
// Returns a new GURL by appending or replacing the given query parameter name
// and the value. If |name| appears more than once, only the first name-value
// pair is replaced. Unsafe characters in the name and the value are escaped
// like %XX%XX. The original query component is preserved if it's present.
//
// Examples:
//
// AppendOrReplaceQueryParameter(
// GURL("http://example.com"), "name", "new").spec()
// => "http://example.com?name=value"
// AppendOrReplaceQueryParameter(
// GURL("http://example.com?x=y&name=old"), "name", "new").spec()
// => "http://example.com?x=y&name=new"
NET_EXPORT GURL AppendOrReplaceQueryParameter(const GURL& url,
const std::string& name,
const std::string& value);
// Looks for |search_key| in the query portion of |url|. Returns true if the
// key is found and sets |out_value| to the unescaped value for the key.
// Returns false if the key is not found.
NET_EXPORT bool GetValueForKeyInQuery(const GURL& url,
const std::string& search_key,
std::string* out_value);
} // namespace net
#endif // NET_BASE_URL_UTIL_H_
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