/**
 * Per-field-type pruners for `cleanup subtree --orphan-external-refs prune`.
 *
 * Each pruner inspects the field value, decides whether it can handle
 * the shape, and returns the pruned value with target references
 * surgically removed (preserving sibling entries). Returning `null`
 * means "this isn't my shape" — caller tries the next pruner.
 *
 * Order of attempts in the caller is renderings-XML first (most
 * specific) then multi-list (catches pipe-separated GUID lists). If
 * none match, the field is a single-value reference and we fall back
 * to clearing it entirely.
 */
/**
 * Remove every target id from a pipe-separated GUID list, preserving
 * the formatting (curly-uppercase vs bare-lowercase) of the surviving
 * entries. Returns the pruned list or `null` if the value isn't a
 * multi-list.
 */
export declare const pruneMultiList: (value: string, targetIds: ReadonlySet<string>) => string | null;
/**
 * Remove every `<r ... />` element whose `id`/`s:id` (rendering item)
 * or `ds`/`s:ds` (datasource item) attribute references a target id.
 * Other renderings stay in their original placeholder; the outer
 * `<r>...<d>...</d></r>` wrapper is preserved even when every inner
 * rendering is removed (callers can post-process empty layouts if
 * needed).
 *
 * Pattern-based parser: each inner rendering is a self-closing `<r
 * attr="value" attr="value" />` element. The outer wrapper `<r ` is
 * followed by namespace declarations / `xmlns`, never by a `/`, so the
 * self-closing-only regex never touches it.
 */
export declare const pruneRenderingsXml: (value: string, targetIds: ReadonlySet<string>) => string | null;
/**
 * Try every pruner in priority order; return the first successful
 * prune. Falls through to `null` when no pruner matches — the caller
 * should treat that as "single-value field; clearing is the prune."
 */
export declare const pruneFieldValue: (value: string, targetIds: ReadonlySet<string>) => string | null;