From 7525fe0834e47bef425135e8cda1d576c44060a5 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Thu, 23 Apr 2026 16:57:33 +0800
Subject: Initialize Rust project with Markdown AST structure

---
 src/ast.rs | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 src/ast.rs

(limited to 'src/ast.rs')

diff --git a/src/ast.rs b/src/ast.rs
new file mode 100644
index 0000000..49cfd6f
--- /dev/null
+++ b/src/ast.rs
@@ -0,0 +1,95 @@
+use std::collections::HashMap;
+
+pub mod parser;
+pub mod renderer;
+
+pub struct MarkdownAST {
+    pub root: Layer,
+}
+
+pub type Level = u8;
+pub type Lang = String;
+pub type Title = String;
+pub type Url = String;
+
+pub struct Layer {
+    pub range_row_begin: u32,
+    pub range_row_end: u32,
+    pub lines: Vec<Line>,
+}
+
+pub struct Line {
+    pub row: u32,
+    pub tokens: Vec<Token>,
+}
+
+pub struct Token {
+    pub begin_row: u32,
+    pub begin_col: u16,
+    pub end_row: u32,
+    pub end_col: u16,
+    pub token: TokenData,
+}
+
+pub enum TokenData {
+    Normal(Fragment),
+    Newline,
+    Newlayer(Layer),
+
+    // Headings
+    Heading(Level, Line, Layer),
+
+    // Emphasis
+    Emphasis(Vec<TokenData>, EmphasisStyle),
+
+    // Lists
+    UnorderedList(Line, UnorderedListPrefix),
+    OrderedList(Line, u32),
+
+    // Links
+    Link(Vec<Fragment>, Url, Option<Title>, LinkType),
+
+    // Code
+    InlineCode(Vec<Fragment>),
+    CodeBlock(Vec<Line>, Option<Lang>),
+
+    // Blockquotes
+    Blockquotes(Layer),
+
+    // HorizontalRule
+    HorizontalRule(HorizontalRuleType),
+
+    // Table
+    Table(Table),
+}
+
+pub struct Fragment {
+    pub str: String,
+}
+
+pub struct EmphasisStyle {
+    pub bold: bool,
+    pub italic: bool,
+    pub strikethrough: bool,
+}
+
+pub enum UnorderedListPrefix {
+    Star,
+    Dash,
+    Plus,
+}
+
+pub enum LinkType {
+    Image,
+    Url,
+}
+
+pub enum HorizontalRuleType {
+    Stars,
+    Dashes,
+    Underscores,
+}
+
+pub struct Table {
+    pub contents: HashMap<(u32, u32), Vec<Fragment>>,
+}
-- 
cgit