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

export type IndentData = {
    type: 'space'|'tab',
    level?: StrTerm,
}

export class Indent extends Command<IndentData> {
    attemptParse(context: ParseContext): IndentData {
        return {
            type: context.popKeywordInSet(['space', 'tab']).value,
            level: context.popOptionalTerm(),
        }
    }

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

    getDisplayName(): string {
        return 'indent'
    }
}