export type LineTokenType = 'tag' | 'indicator' | 'subfieldMarker' | 'subfieldCode' | 'value' | 'terminator' | 'text' | 'whitespace';
export interface LineToken {
    type: LineTokenType;
    value: string;
}
/**
 * Tokenizes a MARC-style "line format" record (field tag, indicators,
 * `*code value` subfields, terminated by a lone `$`) for syntax
 * highlighting without imposing a strict grammar. Preserves the source
 * exactly - concatenating every token's `value` reproduces the input - so a
 * wrapped continuation line or malformed field still displays as plain
 * text instead of breaking the tokenizer.
 */
export declare function tokenizeLineFormat(source: string): LineToken[];