| // Copyright 2017 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 HeaderFieldTokenizer_h |
| #define HeaderFieldTokenizer_h |
| |
| #include "platform/PlatformExport.h" |
| #include "platform/network/ParsedContentHeaderFieldParameters.h" |
| #include "platform/wtf/text/WTFString.h" |
| |
| namespace blink { |
| |
| // Parses header fields into tokens, quoted strings and separators. |
| // Commonly used by ParsedContent* classes. |
| class PLATFORM_EXPORT HeaderFieldTokenizer final { |
| STACK_ALLOCATED(); |
| |
| public: |
| using Mode = ParsedContentHeaderFieldParameters::Mode; |
| |
| explicit HeaderFieldTokenizer(const String& header_field); |
| HeaderFieldTokenizer(HeaderFieldTokenizer&&); |
| |
| // Try to parse a separator character, a token or either a token or a quoted |
| // string from the |header_field| input. Return |true| on success. Return |
| // |false| if the separator character, the token or the quoted string is |
| // missing or invalid. |
| bool Consume(char); |
| bool ConsumeToken(Mode, StringView& output); |
| bool ConsumeTokenOrQuotedString(Mode, String& output); |
| |
| unsigned Index() const { return index_; } |
| bool IsConsumed() const { return index_ >= input_.length(); } |
| |
| private: |
| bool ConsumeQuotedString(String& output); |
| void SkipSpaces(); |
| |
| unsigned index_; |
| const String input_; |
| }; |
| |
| } // namespace blink |
| |
| #endif |