Method reset

core/src/main/java/com/alibaba/druid/sql/parser/Lexer.java:229–239

(SavePoint savePoint)

    }

    public void reset(SavePoint savePoint) {
        this.pos = savePoint.bp;
        this.bufPos = savePoint.sp;
        this.mark = savePoint.np;
        this.ch = savePoint.ch;
        this.token = savePoint.token;
        this.stringVal = savePoint.stringVal;
        this.hash = savePoint.hash;
        this.hashLCase = savePoint.hashLCase;
        this.startPos = savePoint.startPos;
    }

    //出现多次调用mark()后调用reset()会有问题
    @Deprecated