/* * Copyright (c) 2013, Opera Software ASA. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Opera Software ASA nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef UNSAFE_BUFFERS_BUILD // TODO(crbug.com/351564777): Remove this and convert code to safer constructs. #pragma allow_unsafe_buffers #endif #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_TRACK_VTT_VTT_SCANNER_H_ #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_TRACK_VTT_VTT_SCANNER_H_ #include "base/check_op.h" #include "third_party/blink/renderer/core/core_export.h" #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" #include "third_party/blink/renderer/platform/wtf/text/parsing_utilities.h" #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" namespace blink { // Helper class for "scanning" an input string and performing parsing of // "micro-syntax"-like constructs. // // There's two primary operations: match and scan. // // The 'match' operation matches an explicitly or implicitly specified sequence // against the characters ahead of the current input pointer, and returns true // if the sequence can be matched. // // The 'scan' operation performs a 'match', and if the match is successful it // advance the input pointer past the matched sequence. class CORE_EXPORT VTTScanner { … }; inline wtf_size_t VTTScanner::Run::length() const { … } template <unsigned charactersCount> inline bool VTTScanner::Scan(const char (&characters)[charactersCount]) { … } template <bool characterPredicate(UChar)> inline void VTTScanner::SkipWhile() { … } template <bool characterPredicate(UChar)> inline void VTTScanner::SkipUntil() { … } template <bool characterPredicate(UChar)> inline VTTScanner::Run VTTScanner::CollectWhile() { … } template <bool characterPredicate(UChar)> inline VTTScanner::Run VTTScanner::CollectUntil() { … } inline void VTTScanner::SeekTo(Position position) { … } inline UChar VTTScanner::CurrentChar() const { … } inline void VTTScanner::Advance(unsigned amount) { … } } // namespace blink #endif // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_TRACK_VTT_VTT_SCANNER_H_
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