Bold text
\",\n &HtmlParseOptions::default(),\n );\n // Returns: \"# Hello\\n\\n**Bold** text\"\n}\n```\n\nFor AST access, use `parse_html_to_ast()`:\n\n```rust\nuse ironmark::{parse_html_to_ast, HtmlParseOptions, UnknownInlineHandling};\n\nfn main() {\n // Default: strip unknown tags, keep text content\n let ast = parse_html_to_ast(\"H2O
\", &HtmlParseOptions::default());\n\n // Preserve unknown tags as raw HTML\n let ast = parse_html_to_ast(\n \"H2O
\",\n &HtmlParseOptions {\n unknown_inline_handling: UnknownInlineHandling::PreserveAsHtml,\n ..Default::default()\n },\n );\n}\n```\n\n`HtmlParseOptions` fields:\n\n| Field | Type | Default | Description |\n| ------------------------- | ----------------------- | ----------- | ------------------------------------- |\n| `max_nesting_depth` | `usize` | `128` | Limit nesting depth (DoS prevention) |\n| `unknown_inline_handling` | `UnknownInlineHandling` | `StripTags` | How to handle unknown HTML tags |\n| `max_input_size` | `usize` | `0` | Truncate input beyond this byte count |\n\n`UnknownInlineHandling` variants:\n\n- `StripTags` — Remove unknown tags, keep text content (default)\n- `PreserveAsHtml` — Keep unknown tags as raw HTML in output\n\n### AST to Markdown\n\nRender an AST back to Markdown syntax:\n\n```rust\nuse ironmark::{parse_markdown, render_markdown, ParseOptions};\n\nfn main() {\n let ast = parse_markdown(\"# Hello\\n\\n**World**\", &ParseOptions::default());\n let md = render_markdown(&ast);\n // Returns: \"# Hello\\n\\n**World**\"\n}\n```\n\n### ANSI Terminal Output\n\n`render_ansi_terminal()` renders Markdown as ANSI-coloured terminal output. Pass `Some(&AnsiOptions { .. })` to control width, colour, and line numbers, or `None` for defaults.\n\n````rust\nuse ironmark::{AnsiOptions, ParseOptions, render_ansi_terminal};\n\nfn main() {\n // Defaults — width 80, colour enabled\n let out = render_ansi_terminal(\"# Hello\\n\\n**bold** and `code`\", &ParseOptions::default(), None);\n print!(\"{out}\");\n\n // Custom options — 120 columns, line numbers in code blocks\n let out = render_ansi_terminal(\n \"# Hello\\n\\n```rust\\nfn main() {}\\n```\",\n &ParseOptions::default(),\n Some(&AnsiOptions { width: 120, line_numbers: true, ..AnsiOptions::default() }),\n );\n print!(\"{out}\");\n\n // With padding — adds horizontal spacing on both sides\n let out = render_ansi_terminal(\n \"# Hello\\n\\n> A quote\",\n &ParseOptions::default(),\n Some(&AnsiOptions { padding: 2, ..AnsiOptions::default() }),\n );\n print!(\"{out}\");\n\n // Plain text — no ANSI codes (e.g. for writing to a file)\n let plain = render_ansi_terminal(\n \"# Hello\",\n &ParseOptions::default(),\n Some(&AnsiOptions { color: false, ..AnsiOptions::default() }),\n );\n}\n````\n\n`AnsiOptions` fields:\n\n| Field | Type | Default | Description |\n| -------------- | ------- | ------- | --------------------------------------------------------------------------------------------- |\n| `width` | `usize` | `80` | Column width for word-wrap, heading underlines, rule length. `0` = disable. |\n| `color` | `bool` | `true` | Emit ANSI 256-colour escape codes. |\n| `line_numbers` | `bool` | `false` | Show line numbers in fenced code blocks. |\n| `padding` | `usize` | `0` | Horizontal padding added to both sides of each line, plus ⌈padding/2⌉ blank lines at the top. |\n\n## C / C++\n\nThe crate compiles to a static library (`libironmark.a`) that exposes two C functions. A header is provided at `include/ironmark.h`.\n\n### Build the library\n\n```bash\ncargo build --release\n# output: target/release/libironmark.a\n```\n\n### Link\n\n```sh\n# Linux\ncc -o example example.c -L target/release -l ironmark -lpthread -ldl\n\n# macOS\ncc -o example example.c -L target/release -l ironmark \\\n -framework CoreFoundation -framework Security\n```\n\n### Usage\n\n```c\n#include \"include/ironmark.h\"\n#include