MarkdownHTML.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "MarkdownSax.hpp"
#include <string>
#include <vector>
 
AST_NAMESPACE_BEGIN
 
class AST_UTIL_API MarkdownHTML: public MarkdownSax
{
public:
    explicit MarkdownHTML(bool compact = false)
        : compact_(compact) {}
    ~MarkdownHTML() = default;
 
    void setCompact(bool compact) { compact_ = compact; }
    bool isCompact() const { return compact_; }
 
    // 文档生命周期
    void startDocument() override;
    void endDocument() override;
 
    // 块级元素
    void startHeading(int level) override;
    void endHeading(int level) override;
 
    void startParagraph() override;
    void endParagraph() override;
 
    void startCodeBlock(StringView language) override;
    void codeLine(StringView line) override;  // 代码行
    void endCodeBlock() override;
 
    void startList(bool ordered) override;   // true: 有序, false: 无序
    void startListItem() override;
    void endListItem() override;
    void endList() override;
 
    void startBlockquote() override;
    void endBlockquote() override;
 
    void horizontalRule() override;
 
    // 表格
    void startTable() override;
    void startTableHead() override;
    void endTableHead() override;
    void startTableBody() override;
    void endTableBody() override;
    void startTableRow() override;
    void endTableRow() override;
    void startTableCell(ETableAlign align) override;
    void endTableCell() override;
    void endTable() override;
 
    // 行内元素
    void text(StringView txt) override;
    void startEmphasis() override;     // 斜体
    void endEmphasis() override;
    void startStrong() override;       // 粗体
    void endStrong() override;
    void startDelete() override;         // 删除线
    void endDelete() override;
    void codeSpan(StringView code) override;
    void startLink(StringView url) override;
    void endLink() override;
    void image(StringView alt, StringView url) override;
 
public:
    std::string& output() { return output_; }
    const std::string& output() const { return output_; }
    void clearOutput() { output_.clear(); }
 
private:
    static void appendEscaped(std::string& out, StringView text);
 
    void appendIndent(size_t depth);
 
    void appendNewline();
 
    // ---- 输出缓冲 ----
    std::string output_;
 
    // ---- 格式化控制 ----
    bool compact_ = false;              
 
    // ---- 块级状态 ----
    std::vector<bool> listStack_;   
    int  blockquoteDepth_ = 0;      
    int  lastEndListDepth_ = -1;    
 
    // ---- 表格状态 ----
    bool inTableHead_ = false;      
 
    // ---- 链接状态 ----
    std::string linkUrl_;
};
 
 
AST_NAMESPACE_END