import {Command, ParseContext, StrTerm} from "./command.js";
import {LexInput} from "../lexer.js";

export type EncloseData = {
    left?: StrTerm,
    right?: StrTerm,
}

export class Enclose extends Command<EncloseData> {
    attemptParse(context: ParseContext): EncloseData {
        return {
            left: context.popOptionalTerm(),
            right: context.popOptionalTerm(),
        }
    }

    getDisplayName(): string {
        return 'enclose'
    }

    isParseCandidate(token: LexInput): boolean {
        return this.isKeyword(token, 'enclose')
    }
}