CONSUME-AS-DATA-03: Walk a SectionView's content surface

What it demonstrates

A SectionView exposes name, pos, anchors, text(scope), tables/table and lists, with absent optionals reading as undefined.

Builds on: CONSUME-AS-DATA-02: Read one section’s prose two ways

How it’s done

A TypeScript program against the library API; inline comments show the resulting values and behavior.

const s = doc.body.summary;
s.name;            // "Summary"
s.pos;             // { line: 1, col: 1 } — heading SourcePos
s.anchors;         // ["summary"] — its ^block-ids
s.text("all");     // prose + block text flattened
s.tables;          // TableView[]  (s.table for the sole one)
s.lists;           // ListView[]
doc.body.why?.text(); // undefined — absent optional section short-circuits

Surfaces exercised

• SectionView.name/.pos/.anchors
• .text("prose"|"all")
• .tables/.table
• .lists
• absent-optional reads