Shadowtrance
dbf850c434
- M5 Unit Modules library + M5 Unit Test app - Minor fixes for TodoList, TwoEleven, Snake, Brainfuck and Breakout - Fixed SerialConsole to use the uart controller as it was broken in one of the many updates - Fixed keyboard input in TwoEleven, Breakout, Magic8Ball and Snake - Bluetooth Media Keys app, supports pressing physical keys to trigger the corresponding buttonmatrix button - Epub Reader app
91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
#pragma once
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#include <string>
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#include <vector>
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#include <functional>
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#include <cstdint>
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/**
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* SimpleXmlParser - A buffered XML parser for reading attributes
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* Adapted from microreader for Tactility.
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*/
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class SimpleXmlParser {
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public:
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typedef std::function<int(char* buffer, size_t maxSize)> StreamCallback;
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SimpleXmlParser();
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~SimpleXmlParser();
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SimpleXmlParser(const SimpleXmlParser&) = delete;
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SimpleXmlParser& operator=(const SimpleXmlParser&) = delete;
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SimpleXmlParser(SimpleXmlParser&&) = delete;
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SimpleXmlParser& operator=(SimpleXmlParser&&) = delete;
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bool openFromMemory(const char* data, size_t dataSize);
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bool openFromStream(StreamCallback callback);
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void close();
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enum class NodeType {
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None = 0,
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Element,
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Text,
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EndElement,
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Comment,
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ProcessingInstruction,
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CDATA,
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EndOfFile
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};
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bool read();
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NodeType getNodeType() const { return currentNodeType_; }
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const std::string& getName() const { return currentName_; }
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bool isEmptyElement() const { return isEmptyElement_; }
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std::string getAttribute(const char* name) const;
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// For text nodes
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const std::string& getText() const { return currentValue_; }
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private:
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const char* memoryData_ = nullptr;
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size_t memorySize_ = 0;
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bool usingMemory_ = false;
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StreamCallback streamCallback_;
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bool usingStream_ = false;
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size_t streamPosition_ = 0;
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bool streamEOF_ = false;
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static constexpr size_t BUFFER_SIZE = 4096;
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uint8_t* buffer_ = nullptr;
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size_t bufferStartPos_ = 0;
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size_t bufferLen_ = 0;
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size_t filePos_ = 0;
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char getByteAt(size_t pos);
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bool loadBufferAround(size_t pos);
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bool skipWhitespace();
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bool matchString(const char* str);
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char readChar();
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char peekChar();
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struct Attribute {
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std::string name;
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std::string value;
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};
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NodeType currentNodeType_ = NodeType::None;
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std::string currentName_;
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std::string currentValue_;
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bool isEmptyElement_ = false;
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std::vector<Attribute> attributes_;
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bool readElement();
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bool readEndElement();
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bool readText();
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bool readComment();
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bool readCDATA();
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bool readProcessingInstruction();
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void parseAttributes();
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std::string readElementName();
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void skipToEndOfTag();
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};
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