Module reference_links 

Reference definition and footnote parsing functions.

Reference definitions have the form:

[label]: url "optional title"
[label]: url 'optional title'
[label]: url (optional title)
[label]: <url> "title"

Footnote definitions have the form:

[^id]: Footnote content here.
    Can continue on multiple lines
    as long as they're indented.

Functions

line_is_mmd_link_attribute_continuation

try_parse_footnote_marker

Try to parse just the footnote marker [^id]: from a line. Returns Some((id, content_start_col)) if the line starts with a footnote marker.

try_parse_reference_definition

Try to parse a reference definition starting at the current position. Returns Some((bytes_consumed, label, url, title)) on success.

try_parse_reference_definition_lax

Multimarkdown-flavored variant: tolerates trailing content after the title on the same line (e.g. [ref]: /url "title" width=20px ...). Callers in the MMD code path then keep collecting attribute-continuation lines.