comrak-ext 0.1.0

Extended Python bindings for the Comrak Rust library, a fast CommonMark/GFM parser

comrak-ext

Extended Python bindings for the Comrak Rust library, a fast CommonMark/GFM parser. Fork of lmmx/comrak.

Installation

pip install comrak-ext

Requirements

• Python 3.9+

Features

Fast Markdown to HTML parser in Rust, shipped for Python via PyO3.

API

render_markdown

Render Markdown to HTML:

from comrak import ExtensionOptions, render_markdown
extension_options = ExtensionOptions()
render_markdown("foo :smile:", extension_options)
# '<p>foo :smile:</p>\n'

extension_options.shortcodes = True
render_markdown("foo :smile:", extension_options)
# '<p>foo 😄</p>\n'

render_markdown_to_commonmark

Render Markdown to CommonMark:

from comrak import RenderOptions, ListStyleType, render_markdown_to_commonmark

render_options = RenderOptions()
render_markdown_to_commonmark("- one\n- two\n- three", render_options=render_options)

# '- one\n- two\n- three\n' – default is Dash
render_options.list_style = ListStyleType.Plus
render_markdown_to_commonmark("- one\n- two\n- three", render_options=render_options)
# '+ one\n+ two\n+ three\n'

parse_markdown

Parse Markdown into an abstract syntax tree (AST):

from comrak import ExtensionOptions, Document, Text, Paragraph, parse_markdown

extension_options = ExtensionOptions()
extension_options.front_matter_delimiter = "---"

md_content = """---
This is a text in FrontMatter
---

Hello, Markdown!
"""

x = parse_markdown(md_content, extension_options)
assert isinstance(x.node_value, Document)
assert not hasattr(x.node_value, "value")
assert len(x.children) == 2

assert isinstance(x.children[0].node_value, FrontMatter)
assert isinstance(x.children[0].node_value.value, str)
assert x.children[0].node_value.value.strip() == "---\nThis is a text in FrontMatter\n---"

assert isinstance(x.children[1].node_value, Paragraph)
assert len(x.children[1].children) == 1
assert isinstance(x.children[1].children[0].node_value, Text)
assert isinstance(x.children[1].children[0].node_value.value, str)
assert x.children[1].children[0].node_value.value == "Hello, Markdown!"

Options

All options are exposed in a simple manner and can be used with both render_markdown, render_markdown_to_commonmark, and parse_markdown.

Refer to the Comrak docs for all available options.

Benchmarks

Tested with small (8 lines) and medium (1200 lines) markdown strings

• vs. markdown: 15x faster (S/M)
• vs. markdown2: 20x (S) - 60x (M) faster

Contributing

Maintained by Martin005. Contributions welcome!

1. Issues & Discussions: Please open a GitHub issue or discussion for bugs, feature requests, or questions.
2. Pull Requests: PRs are welcome!
   • Install the dev extra (e.g. with uv: uv pip install -e .[dev])
   • Run tests (when available) and include updates to docs or examples if relevant.
   • If reporting a bug, please include the version and the error message/traceback if available.

License

Licensed under the 2-Clause BSD License. See LICENSE for all the details.