export declare enum TokenKind {
    LCurly = 0,
    RCurly = 1,
    Pipe = 2,
    PipeEquals = 3,
    PipeRegex = 4,
    Equals = 5,
    NotEquals = 6,
    RegexEquals = 7,
    RegexNotEquals = 8,
    GreaterThan = 9,
    GreaterEquals = 10,
    LessThan = 11,
    LessEquals = 12,
    String = 13,
    Number = 14,
    Duration = 15,
    Bytes = 16,
    Ident = 17,
    Comma = 18,
    LParen = 19,
    RParen = 20,
    LBracket = 21,
    RBracket = 22,
    Comment = 23,
    Whitespace = 24,
    EOF = 25,
    Error = 26
}
export interface Token {
    kind: TokenKind;
    value: string;
    start: number;
    end: number;
}
export interface LokiQuery {
    streamSelector: StreamSelector | null;
    pipeline: PipelineStage[];
    metricExpr: MetricExpr | null;
    errors: ParseError[];
}
export interface StreamSelector {
    matchers: Matcher[];
}
export interface Matcher {
    label: string;
    operator: string;
    value: string;
}
export declare type PipelineStage = LineFilter | JsonParser | LogfmtParser | RegexpParser | LabelFilter | UnrecognizedStage;
export interface LineFilter {
    type: 'lineFilter';
    operator: string;
    value: string;
}
export interface JsonParser {
    type: 'jsonParser';
    expressions?: string[];
}
export interface LogfmtParser {
    type: 'logfmtParser';
    expressions?: string[];
}
export interface RegexpParser {
    type: 'regexpParser';
    pattern: string;
}
export interface LabelFilter {
    type: 'labelFilter';
    conditions: LabelFilterCondition[];
}
export interface LabelFilterCondition {
    label: string;
    operator: string;
    value: string;
}
export interface UnrecognizedStage {
    type: 'unrecognized';
    keyword: string;
    rest: string;
}
export interface MetricExpr {
    func: string;
    range: string;
    grouping?: Grouping;
}
export interface Grouping {
    by: boolean;
    labels: string[];
}
export interface ParseError {
    message: string;
    start: number;
    end: number;
}
export declare type SituationKind = 'NONE' | 'IN_SELECTOR_LABEL' | 'IN_SELECTOR_VALUE' | 'AFTER_PIPE' | 'IN_PIPELINE_ARG' | 'IN_LABEL_FILTER' | 'IN_FUNCTION_PARENS' | 'IN_GROUPING';
export interface Situation {
    kind: SituationKind;
    prefix: string;
    replaceRange: {
        start: number;
        end: number;
    };
    /** The label name when completing a selector value (IN_SELECTOR_VALUE). */
    labelName?: string;
    /** The index of the matcher being edited within the stream selector (IN_SELECTOR_VALUE). */
    matcherIndex?: number;
    /** True when cursor is inside an existing string literal (quotes already present). */
    insideString?: boolean;
}