/**
 * Core type definitions for TAML (Terminal ANSI Markup Language) AST
 */
/**
 * All 37 valid TAML tags from the TAML specification
 */
export type TamlTag = "black" | "red" | "green" | "yellow" | "blue" | "magenta" | "cyan" | "white" | "brightBlack" | "brightRed" | "brightGreen" | "brightYellow" | "brightBlue" | "brightMagenta" | "brightCyan" | "brightWhite" | "bgBlack" | "bgRed" | "bgGreen" | "bgYellow" | "bgBlue" | "bgMagenta" | "bgCyan" | "bgWhite" | "bgBrightBlack" | "bgBrightRed" | "bgBrightGreen" | "bgBrightYellow" | "bgBrightBlue" | "bgBrightMagenta" | "bgBrightCyan" | "bgBrightWhite" | "bold" | "dim" | "italic" | "underline" | "strikethrough";
/**
 * AST node type discriminator
 */
export type NodeType = "document" | "element" | "text";
/**
 * Position information for nodes in the source text
 */
export interface Position {
    /** Start position in source text (0-based) */
    start: number;
    /** End position in source text (0-based) */
    end: number;
    /** Line number in source text (1-based) */
    line: number;
    /** Column number in source text (1-based) */
    column: number;
}
/**
 * Standard color names
 */
export declare const STANDARD_COLORS: readonly ["black", "red", "green", "yellow", "blue", "magenta", "cyan", "white"];
/**
 * Bright color names
 */
export declare const BRIGHT_COLORS: readonly ["brightBlack", "brightRed", "brightGreen", "brightYellow", "brightBlue", "brightMagenta", "brightCyan", "brightWhite"];
/**
 * Background color names
 */
export declare const BACKGROUND_COLORS: readonly ["bgBlack", "bgRed", "bgGreen", "bgYellow", "bgBlue", "bgMagenta", "bgCyan", "bgWhite", "bgBrightBlack", "bgBrightRed", "bgBrightGreen", "bgBrightYellow", "bgBrightBlue", "bgBrightMagenta", "bgBrightCyan", "bgBrightWhite"];
/**
 * Text style names
 */
export declare const TEXT_STYLES: readonly ["bold", "dim", "italic", "underline", "strikethrough"];
/**
 * All valid TAML tags as a set for fast lookup
 */
export declare const VALID_TAGS: Set<TamlTag>;
/**
 * Check if a string is a valid TAML tag
 */
export declare function isValidTag(tag: string): tag is TamlTag;
/**
 * Type guard for standard colors
 */
export declare function isStandardColor(tag: TamlTag): tag is (typeof STANDARD_COLORS)[number];
/**
 * Type guard for bright colors
 */
export declare function isBrightColor(tag: TamlTag): tag is (typeof BRIGHT_COLORS)[number];
/**
 * Type guard for background colors
 */
export declare function isBackgroundColor(tag: TamlTag): tag is (typeof BACKGROUND_COLORS)[number];
/**
 * Type guard for text styles
 */
export declare function isTextStyle(tag: TamlTag): tag is (typeof TEXT_STYLES)[number];
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