/**
 * Liquid Lexer
 * Tokenizes Liquid template syntax: {{ output }}, {% tags %}
 * Shopify-compatible implementation
 */
export declare enum LiquidTokenType {
    TEXT = "TEXT",
    VAR_START = "VAR_START",// {{
    VAR_END = "VAR_END",// }}
    TAG_START = "TAG_START",// {%
    TAG_END = "TAG_END",// %}
    ID = "ID",
    STRING = "STRING",
    NUMBER = "NUMBER",
    DOT = "DOT",
    PIPE = "PIPE",
    COLON = "COLON",
    COMMA = "COMMA",
    LBRACKET = "LBRACKET",
    RBRACKET = "RBRACKET",
    RANGE = "RANGE",// ..
    EQUALS = "EQUALS",// =
    EQ = "EQ",// ==
    NE = "NE",// != or <>
    LT = "LT",
    LE = "LE",
    GT = "GT",
    GE = "GE",
    CONTAINS = "CONTAINS",
    AND = "AND",
    OR = "OR",
    EOF = "EOF"
}
export interface LiquidToken {
    type: LiquidTokenType;
    value: string;
    line: number;
    column: number;
}
export declare class LiquidLexer {
    private source;
    private pos;
    private line;
    private column;
    private tokens;
    constructor(source: string);
    tokenize(): LiquidToken[];
    private scanToken;
    private checkRawTag;
    private scanRawBlock;
    private scanText;
    private scanExpression;
    private scanExpressionToken;
    private scanString;
    private scanNumber;
    private scanIdentifier;
    private isAtEnd;
    private peek;
    private peekNext;
    private advance;
    private check;
    private match;
    private skipWhitespace;
    private isDigit;
    private isAlpha;
    private isAlphaNumeric;
    private addToken;
}
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