cjm-markdown-decompose-core

A Markdown decomposition core for context graphs: parses Markdown content (frontmatter, structure, and [[wiki-links]]) into provenance-carrying graph nodes and edges. First source = the ecosystem's own memory/decision files; generalizes to any Markdown corpus.

Modules

• cjm_markdown_decompose_core.__init__
• cjm_markdown_decompose_core.extract — Map parsed Markdown onto dev-graph-schema nodes (coarse tier).
• cjm_markdown_decompose_core.ingest — Flatten decomposed notes into graph elements for idempotent extension.
• cjm_markdown_decompose_core.parse — Schema-free Markdown parsing (stdlib + PyYAML).
• cjm_markdown_decompose_core.project — Projections from the decomposed content back out to files.
• cjm_markdown_decompose_core.relations — Per-source-type relationship harvesting from parsed Markdown.
• cjm_markdown_decompose_core.sections — Decompose a Markdown body into ordered Section nodes (the navigable unit).

API

cjm_markdown_decompose_core.extract

• corpus_index_files function — Every <dir>/index.md or <dir>/index.qmd under the root, one per post directory.
• note_from_file function — Read a Markdown file and map it to a coarse NoteNode.
• note_from_parsed function — Build a coarse NoteNode from already-parsed Markdown.
• note_from_text function — Parse + map in one step from in-memory text (hashes the UTF-8 bytes).
• note_type_from function — Read the memory category from metadata.type (None when absent).
• slug_from function — Derive the stable slug: frontmatter name if present, else the path.
• title_from function — Derive a display title: explicit frontmatter title, else the slug titleized.

cjm_markdown_decompose_core.ingest

• corpus_graph_elements function — Collect notes into the node + edge wire-dict lists extend_graph expects.

cjm_markdown_decompose_core.parse

• ParsedMarkdown class — The structural decomposition of one Markdown document.
• extract_headings function — Extract ATX headings (#..######) as (level, text) pairs.
• extract_wiki_links function — Extract [[wiki-link]] targets from the body, de-duplicated, order-preserved.
• fenced_code_spans function — Locate fenced code blocks (``` / ~~~) as character spans of the body.
• find_headings function — The body's ATX heading matches, skipping every line inside a fenced code block.
• parse_frontmatter function — Parse frontmatter YAML into a dict (empty dict when absent).
• parse_markdown function — Parse a Markdown document into frontmatter + body + wiki-links + headings.
• split_frontmatter function — Split a leading ----delimited YAML frontmatter block from the body.
• strip_code function — Blank out fenced + inline code spans (replaced with a space, length-agnostic).

cjm_markdown_decompose_core.project

• first_sentence function — A deterministic terse hook: the description's first sentence, capped.
• note_index_line function — Render one index line from a note's frontmatter-derived fields.
• note_text_from_graph_nodes function — Reconstruct a note's file text FROM the graph (frontmatter_raw + ordered raw spans).
• note_view_from_graph_node function — Reconstruct an index-relevant NoteNode from a queried graph node.
• render_memory_index function — Render a MEMORY.md index: notes grouped by category, one line each.
• render_memory_index_from_graph_nodes function — Render the memory index FROM queried graph nodes (the self-hosting path).
• render_note_text function — Reassemble a note's exact file text from its verbatim parts (lossless mode).
• render_onboarding_surface function — Render the onboarding surface: orientation + how-to-query + resident PUSH core + landmark map + how-to-pull.

cjm_markdown_decompose_core.relations

• NoteRelations class — The harvested relationship signals for one note (beyond [[wiki-links]]).
• detect_profile function — Detect the source-type profile from the frontmatter shape.
• harvest_aliases function — Harvest aliases (old URLs) -> bare permalinks (alternate identities).
• harvest_categories function — Harvest categories -> normalized Topic keys (the thematic-clustering facet).
• harvest_cross_post_links function — Harvest /posts/... markdown links -> (permalink, section anchor) pairs.
• harvest_relations function — Harvest a note's relationships using its (detected or given) source profile.
• harvest_series_links function — Harvest /series/... markdown links -> series keys (the membership signal).
• is_site_link function — A link into the site: relative or rooted, or an absolute URL on the site's own host.
• normalize_permalink function — Reduce a post link to its bare permalink — the path AFTER posts/.
• quarto_site_url function — The site URL of the Quarto project a file belongs to (ruling 260119bf).
• slugify function — Normalize a category/tag to a stable key (lowercased, separators collapsed).

cjm_markdown_decompose_core.sections

• decompose_sections function — Decompose a body into ordered SectionNodes (heading-delimited).
• heading_anchor function — Slugify a heading to its anchor — the Pandoc/Quarto auto-identifier shape.

Dependencies

Depends on: cjm-context-graph-layer, cjm-context-graph-primitives, cjm-dev-graph-schema, pyyaml Used by: cjm-context-graph-projection, cjm-notebook-decompose-core