mq-python

Python bindings for the mq Markdown processor.

Installation

pip install markdown-query

Usage

Basic Usage

Use the run function to process Markdown with mq queries:

import mq

# Extract all level 1 headings
result = mq.run(".h1", "# Hello World\n\n## Heading2\n\nText")
print(result.values)  # ['# Hello World']

# Extract all level 2 headings
result = mq.run(".h2", "# Main Title\n\n## Section A\n\n## Section B")
print(result.values)  # ['## Section A', '## Section B']

# Get all results as a single string
print(result.text)  # '## Section A\n## Section B'

Filtering and Transforming

Use mq query syntax to filter and transform Markdown:

import mq

markdown = """
# Product

## Features
Great features here.

## Installation
Install instructions.
"""

# Filter headings containing specific text
result = mq.run('.h2 | select(contains("Feature"))', markdown)
print(result.values)  # ['## Features']

# Extract list items
result = mq.run(".[]", "# List\n\n- Item 1\n- Item 2\n- Item 3")
print(result.values)  # ['- Item 1', '- Item 2', '- Item 3']

# Extract code blocks
result = mq.run(".code", "# Code\n\n```python\nprint('Hello')\n```")
print(result.values)  # ["```python\nprint('Hello')\n```"]

Input Formats

mq supports multiple input formats:

import mq

# Markdown (default)
options = mq.Options()
options.input_format = mq.InputFormat.MARKDOWN
result = mq.run(".h1", "# Heading", options)

# MDX (Markdown with JSX)
options = mq.Options()
options.input_format = mq.InputFormat.MDX
result = mq.run("select(is_mdx())", "# MDX\n\n<Component />", options)
print(result.values)  # ['<Component />']

# HTML
options = mq.Options()
options.input_format = mq.InputFormat.HTML
result = mq.run('select(contains("Hello"))', "<h1>Hello</h1><p>World</p>", options)
print(result.values)  # ['# Hello']

# Plain text
options = mq.Options()
options.input_format = mq.InputFormat.TEXT
result = mq.run('select(contains("2"))', "Line 1\nLine 2\nLine 3", options)
print(result.values)  # ['Line 2']

Available input formats:

• InputFormat.MARKDOWN - Standard Markdown (default)
• InputFormat.MDX - Markdown with JSX
• InputFormat.HTML - HTML content
• InputFormat.TEXT - Plain text
• InputFormat.RAW - Raw string input
• InputFormat.NULL - Null input

Rendering Options

Customize the output rendering:

import mq

options = mq.Options()
options.input_format = mq.InputFormat.MARKDOWN
options.list_style = mq.ListStyle.PLUS        # Use '+' for list items
options.link_title_style = mq.TitleSurroundStyle.SINGLE  # Use single quotes for link titles
options.link_url_style = mq.UrlSurroundStyle.ANGLE       # Use angle brackets for URLs

result = mq.run(".", markdown, options)

Available options:

• ListStyle: DASH (default), PLUS, STAR
• TitleSurroundStyle: DOUBLE (default), SINGLE, PAREN
• UrlSurroundStyle: NONE (default), ANGLE

HTML to Markdown Conversion

Convert HTML to Markdown:

import mq

html = "<h1>Hello World</h1><p>This is a <strong>test</strong>.</p>"
markdown = mq.html_to_markdown(html)
print(markdown)  # '# Hello World\n\nThis is a **test**.'

# With conversion options
options = mq.ConversionOptions()
options.extract_scripts_as_code_blocks = True  # Convert <script> tags to code blocks
options.generate_front_matter = True           # Generate front matter from metadata
options.use_title_as_h1 = True                 # Use <title> as h1 heading

markdown = mq.html_to_markdown(html, options)

Working with Results

The run function returns an MQResult object:

import mq

result = mq.run(".h", "# H1\n\n## H2\n\n### H3")

# Get the number of results
print(len(result))  # 3

# Access individual results by index
print(result[0].text)  # '# H1'

# Iterate over results
for value in result.values:
    print(value)

# Get all results as a single string
print(result.text)  # '# H1\n## H2\n### H3'

# Check if a value is in the result
print("# H1" in result.values)  # True

Each MQValue has the following properties:

• text - The string representation of the value
• values - For arrays, returns the list of values
• markdown_type - The type of Markdown element (e.g., Heading, Code, List)
• is_array() - Check if the value is an array
• is_markdown() - Check if the value is a Markdown element

Error Handling

Invalid queries raise a RuntimeError:

import mq

try:
    result = mq.run(".invalid!!!", "# Heading")
except RuntimeError as e:
    print(f"Query error: {e}")

Development

Building from Source

git clone https://github.com/harehare/mq
cd mq/crates/mq-python
pip install maturin
maturin develop

Running Tests

pytest tests/

Support

• 🐛 Report bugs
• 💡 Request features
• 📖 Read the documentation
• 📦 PyPI package

License

Licensed under the MIT License.