import { ParsedDirective } from './types';
/**
 * Parser for compare directives
 *
 * Parses {{compare:action:arg1:arg2|transform1|transform2}} syntax
 */
export declare class CompareParser {
    /**
     * Check if a string contains a compare directive
     *
     * NOTE: This allows curly braces inside the directive (e.g., regex patterns with {5})
     */
    isDirective(value: string): boolean;
    /**
     * Find all compare directives in a string
     *
     * NOTE: This allows curly braces inside directives (e.g., regex patterns with {5})
     */
    findDirectives(content: string): string[];
    /**
     * Parse a compare directive string
     *
     * Examples:
     * - {{compare:startsWith:Hello}}
     * - {{compare:time:range:±300:seconds}}
     * - {{compare:regex:user_\d+|toString}}
     */
    parse(directive: string): ParsedDirective;
    /**
     * Parse a transform string
     *
     * Examples:
     * - toNumber → {name: 'toNumber', params: []}
     * - substring:0:10 → {name: 'substring', params: ['0', '10']}
     */
    private parseTransform;
    /**
     * Split a string by colons, but not escaped colons (\:)
     *
     * Example: "a:b\:c:d" → ["a", "b:c", "d"]
     *
     * NOTE: Preserves backslashes that are NOT escaping colons
     * Example: "user_\d{5}" → ["user_\d{5}"]
     */
    private splitByUnescapedColon;
    /**
     * Unescape a string (convert \: back to :, etc.)
     */
    unescape(str: string): string;
    /**
     * Check if a string is a special keyword (exact, ignore, etc.)
     */
    isKeyword(value: string): boolean;
}
//# sourceMappingURL=CompareParser.d.ts.map