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87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef URL_URL_CANON_STDSTRING_H_
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#define URL_URL_CANON_STDSTRING_H_
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// This header file defines a canonicalizer output method class for STL
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// strings. Because the canonicalizer tries not to be dependent on the STL,
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// we have segregated it here.
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#include <string>
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#include "base/compiler_specific.h"
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#include "base/strings/string_piece.h"
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#include "url/url_canon.h"
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#include "url/url_export.h"
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namespace url {
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// Write into a std::string given in the constructor. This object does not own
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// the string itself, and the user must ensure that the string stays alive
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// throughout the lifetime of this object.
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//
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// The given string will be appended to; any existing data in the string will
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// be preserved.
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//
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// Note that when canonicalization is complete, the string will likely have
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// unused space at the end because we make the string very big to start out
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// with (by |initial_size|). This ends up being important because resize
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// operations are slow, and because the base class needs to write directly
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// into the buffer.
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//
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// Therefore, the user should call Complete() before using the string that
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// this class wrote into.
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class URL_EXPORT StdStringCanonOutput : public CanonOutput {
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public:
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StdStringCanonOutput(std::string* str);
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~StdStringCanonOutput() override;
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// Must be called after writing has completed but before the string is used.
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void Complete();
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void Resize(int sz) override;
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protected:
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std::string* str_;
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};
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// An extension of the Replacements class that allows the setters to use
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// StringPieces (implicitly allowing strings or char*s).
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//
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// The contents of the StringPieces are not copied and must remain valid until
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// the StringPieceReplacements object goes out of scope.
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template<typename STR>
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class StringPieceReplacements : public Replacements<typename STR::value_type> {
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public:
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void SetSchemeStr(const base::BasicStringPiece<STR>& s) {
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this->SetScheme(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetUsernameStr(const base::BasicStringPiece<STR>& s) {
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this->SetUsername(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetPasswordStr(const base::BasicStringPiece<STR>& s) {
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this->SetPassword(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetHostStr(const base::BasicStringPiece<STR>& s) {
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this->SetHost(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetPortStr(const base::BasicStringPiece<STR>& s) {
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this->SetPort(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetPathStr(const base::BasicStringPiece<STR>& s) {
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this->SetPath(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetQueryStr(const base::BasicStringPiece<STR>& s) {
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this->SetQuery(s.data(), Component(0, static_cast<int>(s.length())));
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}
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void SetRefStr(const base::BasicStringPiece<STR>& s) {
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this->SetRef(s.data(), Component(0, static_cast<int>(s.length())));
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}
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};
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} // namespace url
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#endif // URL_URL_CANON_STDSTRING_H_
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