/**
 * Low-level buffer attribute utilities for columnar parsing.
 *
 * Pure functions that operate on raw Uint8Array buffers to extract
 * STEP entity attributes without TextDecoder overhead.
 */
import type { EntityRef } from './types.js';
/**
 * Find the byte range of a quoted string at a specific attribute position in STEP entity bytes.
 * Returns [start, end) byte offsets (excluding quotes), or null if not found.
 *
 * @param buffer - The IFC file buffer
 * @param entityStart - byte offset of the entity
 * @param entityLen - byte length of the entity
 * @param attrIndex - 0-based attribute index (0=GlobalId, 2=Name)
 */
export declare function findQuotedAttrRange(buffer: Uint8Array, entityStart: number, entityLen: number, attrIndex: number): [number, number] | null;
/**
 * Skip N commas at depth 0 in STEP bytes.
 */
export declare function skipCommas(buffer: Uint8Array, start: number, end: number, count: number): number;
/** Read a #ID entity reference as a number. Returns -1 if not an entity ref. */
export declare function readRefId(buffer: Uint8Array, pos: number, end: number): [number, number];
/** Read a list of entity refs (#id1,#id2,...) or a single #id. Returns [ids, newPos]. */
export declare function readRefList(buffer: Uint8Array, pos: number, end: number): [number[], number];
/**
 * Batch extract GlobalId (attr[0]) and Name (attr[2]) for many entities using
 * only 2 TextDecoder.decode() calls total (one for all GlobalIds, one for all Names).
 *
 * This is ~100x faster than calling extractEntity() per entity for large batches
 * because it eliminates per-entity TextDecoder overhead which is significant in Firefox.
 *
 * Returns a Map from expressId → { globalId, name }.
 */
export declare function batchExtractGlobalIdAndName(buffer: Uint8Array, refs: EntityRef[], yieldIfNeeded?: () => Promise<void>): Promise<Map<number, {
    globalId: string;
    name: string;
}>>;
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