/** @internal Tokenizer for KERN source lines. */
import type { ParseState } from './parser-diagnostics.js';
export type LexMode = 'line' | 'expression' | 'path' | 'regex';
export type TokenKind = 'identifier' | 'number' | 'equals' | 'quoted' | 'expr' | 'style' | 'themeRef' | 'slash' | 'comma' | 'whitespace' | 'unknown';
export interface Token {
    kind: TokenKind;
    value: string;
    pos: number;
}
/** @internal Character-by-character tokenizer for a single KERN line (after indent stripped).
 *  `mode` selects the lex contract; only 'line' is implemented today. */
export declare function tokenizeLineInternal(line: string, state?: ParseState, mode?: LexMode): Token[];
export declare function tokenizeLine(line: string, mode?: LexMode): Token[];