/**
 * Aexol Language Lexer
 *
 * Tokenizes Aexol source code into a stream of tokens.
 * Handles keywords, identifiers, operators, strings, and whitespace.
 */
export declare enum TokenType {
    IDENTIFIER = "IDENTIFIER",
    STRING = "STRING",
    NUMBER = "NUMBER",
    VISITOR = "VISITOR",
    AND = "AND",
    OR = "OR",
    NOT = "NOT",
    IF = "IF",
    WHEN = "WHEN",
    WHILE = "WHILE",
    FOR = "FOR",
    IN = "IN",
    OF = "OF",
    AS = "AS",
    WITH = "WITH",
    WITHOUT = "WITHOUT",
    REQUIRE = "REQUIRE",
    IMPORT = "IMPORT",
    FROM = "FROM",
    DEFINE = "DEFINE",
    TYPE = "TYPE",
    ENUM = "ENUM",
    INTERFACE = "INTERFACE",
    AGENT = "AGENT",
    WORKFLOW = "WORKFLOW",
    ROLE = "ROLE",
    PERMISSION = "PERMISSION",
    ACTION = "ACTION",
    STATE = "STATE",
    TRANSITION = "TRANSITION",
    EXECUTION_PLAN = "EXECUTION_PLAN",
    TASK = "TASK",
    SUBTASK = "SUBTASK",
    SUBTASKS = "SUBTASKS",
    DEPENDENCIES = "DEPENDENCIES",
    PARALLEL_WITH = "PARALLEL_WITH",
    EXECUTION_GRAPH = "EXECUTION_GRAPH",
    PHASE = "PHASE",
    CONTEXT = "CONTEXT",
    CAPABILITIES = "CAPABILITIES",
    SKILLS = "SKILLS",
    MODEL = "MODEL",
    MAX_CONCURRENT = "MAX_CONCURRENT",
    ESTIMATED_DURATION = "ESTIMATED_DURATION",
    DESCRIPTION = "DESCRIPTION",
    SPEC_REFERENCE = "SPEC_REFERENCE",
    GENERATED_FROM = "GENERATED_FROM",
    GENERATED_AT = "GENERATED_AT",
    GENERATED_BY = "GENERATED_BY",
    INITIAL = "INITIAL",
    FINAL = "FINAL",
    TRUE = "TRUE",
    FALSE = "FALSE",
    NULL = "NULL",
    RETURN = "RETURN",
    YIELD = "YIELD",
    ASYNC = "ASYNC",
    AWAIT = "AWAIT",
    THROW = "THROW",
    TRY = "TRY",
    CATCH = "CATCH",
    FINALLY = "FINALLY",
    LPAREN = "LPAREN",
    RPAREN = "RPAREN",
    LBRACE = "LBRACE",
    RBRACE = "RBRACE",
    LBRACKET = "LBRACKET",
    RBRACKET = "RBRACKET",
    DOT = "DOT",
    COMMA = "COMMA",
    COLON = "COLON",
    SEMICOLON = "SEMICOLON",
    ARROW = "ARROW",
    FAT_ARROW = "FAT_ARROW",
    EQUALS = "EQUALS",
    PLUS_EQUALS = "PLUS_EQUALS",
    MINUS_EQUALS = "MINUS_EQUALS",
    MULT_EQUALS = "MULT_EQUALS",
    DIV_EQUALS = "DIV_EQUALS",
    PLUS = "PLUS",
    MINUS = "MINUS",
    MULT = "MULT",
    DIV = "DIV",
    MOD = "MOD",
    POWER = "POWER",
    EQ = "EQ",
    NEQ = "NEQ",
    LT = "LT",
    LTE = "LTE",
    GT = "GT",
    GTE = "GTE",
    AMPERSAND = "AMPERSAND",
    PIPE = "PIPE",
    CARET = "CARET",
    TILDE = "TILDE",
    QUESTION = "QUESTION",
    EXCLAMATION = "EXCLAMATION",
    AT = "AT",
    DOLLAR = "DOLLAR",
    HASH = "HASH",
    BACKSLASH = "BACKSLASH",
    NEWLINE = "NEWLINE",
    INDENT = "INDENT",
    DEDENT = "DEDENT",
    EOF = "EOF",
    COMMENT = "COMMENT",
    WHITESPACE = "WHITESPACE",
    PROMPT = "PROMPT"
}
export interface TokenLocation {
    line: number;
    column: number;
    offset: number;
}
export interface Token {
    type: TokenType;
    value: string;
    location: TokenLocation;
    raw: string;
}
export declare class Lexer {
    private source;
    private position;
    private line;
    private column;
    private tokens;
    private indentStack;
    constructor(source: string);
    private peek;
    private advance;
    private skipWhitespace;
    private skipCommentIfNeeded;
    private readString;
    private readNumber;
    private readIdentifier;
    private readPromptString;
    private handleIndentation;
    tokenize(): Token[];
    getTokens(): Token[];
}
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