Method getSlice

src/Parser.ts:741–761

(start: number, end: number)

    }

    private getSlice(start: number, end: number) {
        if (start === end) {
            return "";
        }

        while (start - this.bufferOffset >= this.buffers[0].length) {
            this.shiftBuffer();
        }

        let slice = this.buffers[0].slice(
            start - this.bufferOffset,
            end - this.bufferOffset,
        );

        while (end - this.bufferOffset > this.buffers[0].length) {
            this.shiftBuffer();
            slice += this.buffers[0].slice(0, end - this.bufferOffset);
        }

        return slice;
    }

    private shiftBuffer(): void {
        this.bufferOffset += this.buffers[0].length;