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Regdown

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Regdown is a Python-Markdown extension for interactive regulation text.

Dependencies

Installation

First, install Regdown:

pip install regdown

Then you can either:

  • Specify Regdown as an extension in calls to markdown:

    import markdown
    from regdown import RegulationsExtension
    
    markdown.markdown(text, extensions=[RegulationsExtension()],)
  • Use convenience regdown function to render Markdown with the RegulationsExtension:

    from regdown import regdown
    
    regdown(text)

Documentation

Regdown adds three major features to Markdown to support making federal regulations easier to navigate and read.

Labeled Paragraphs

{label} Paragraph text

Each paragraph can have a defined label, using {label} syntax at the start of the paragraph. This is translated into an id attribute on the resulting HTML paragraph element. If no label is given, the contents of the paragraph are hashed to generate a unique id for that paragraph. This makes any paragraph in the text directly linkable.

Pseudo Forms

  • Form field: __
  • __Form Field
  • inline__fields__

Example print forms, where the \_\_ indicate a space for hand-written input. Can be any number of underscores between 2 and 50.

Section symbols

§ 1024.5(d) §1024.5(d)

Section symbols will always have a non-breaking space ( ) inserted between them and whatever follows to avoid hanging a symbol at the end of a line.

Block references

see(label)

Insert the contents of labeled paragraphs in other Regdown documents inline into the current document.

References can be placed before or after paragraphs. These references are to labeled paragraphs in other Markdown documents. When a contents_resolver callback and url_resolver callback are provided, the text of those other paragraphs can be looked up and inserted inline into the document making the reference. If render_block_reference callback is provided, custom rendering of the referenced text to HTML can be performed.

Callbacks:

  • contents_resolver(label): resolve the paragraph label and return the Markdown contents of that paragraph if the paragraph exists.
  • url_resolver(label): resolve the paragraph label and return a URL to that paragraph if the paragraph exists.
  • render_block_reference(contents, url=None): render the contents of a block reference to HTML. The url to the reference may be give as a keyword argument if url_resolver is provided.
from regdown import regdown

def my_contents_resolver(label):
    # Lookup the document that contains the given label …
    return corresponding_markdown_text

def my_block_renderer(block_markdown_contents, url=None):
    # Render the block to HTML
    return block_html

regdown(
    text,
    contents_resolver=my_contents_resolver,
    render_block_reference=my_block_renderer
)

Getting help

Please add issues to the issue tracker.

Getting involved

General instructions on how to contribute can be found in CONTRIBUTING.

Licensing

  1. TERMS
  2. LICENSE
  3. CFPB Source Code Policy

Credits and references

regdown was forked from Wagtail-Flags, which was itself forked from consumerfinance.gov.

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A Python-Markdown extension for interactive regulation text

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