1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef TINYXML_LAYOUT_PARSER_H_ 17 #define TINYXML_LAYOUT_PARSER_H_ 18 19 #include "tinyxml2.h" 20 21 #include <codecvt> 22 #include <locale> 23 #include <string> 24 25 namespace startop { 26 27 template <typename Visitor> 28 class TinyXmlVisitorAdapter : public tinyxml2::XMLVisitor { 29 public: TinyXmlVisitorAdapter(Visitor * visitor)30 explicit TinyXmlVisitorAdapter(Visitor* visitor) : visitor_{visitor} {} 31 VisitEnter(const tinyxml2::XMLDocument &)32 bool VisitEnter(const tinyxml2::XMLDocument& /*doc*/) override { 33 visitor_->VisitStartDocument(); 34 return true; 35 } 36 VisitExit(const tinyxml2::XMLDocument &)37 bool VisitExit(const tinyxml2::XMLDocument& /*doc*/) override { 38 visitor_->VisitEndDocument(); 39 return true; 40 } 41 VisitEnter(const tinyxml2::XMLElement & element,const tinyxml2::XMLAttribute *)42 bool VisitEnter(const tinyxml2::XMLElement& element, 43 const tinyxml2::XMLAttribute* /*firstAttribute*/) override { 44 visitor_->VisitStartTag( 45 std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.from_bytes( 46 element.Name())); 47 return true; 48 } 49 VisitExit(const tinyxml2::XMLElement &)50 bool VisitExit(const tinyxml2::XMLElement& /*element*/) override { 51 visitor_->VisitEndTag(); 52 return true; 53 } 54 55 private: 56 Visitor* visitor_; 57 }; 58 59 // Returns whether a layout resource represented by a TinyXML document is supported by the layout 60 // compiler. 61 bool CanCompileLayout(const tinyxml2::XMLDocument& xml, std::string* message = nullptr); 62 63 } // namespace startop 64 65 #endif // TINYXML_LAYOUT_PARSER_H_ 66