Introduction to VBS regular expressions-order of precedence

Source: Internet
Author: User
Tags expression regular expression

Priority order

After a regular expression is constructed, it can be evaluated like a mathematical expression, that is, it can be evaluated from left to right and in a priority order.

The following table lists the order of precedence for various regular expression operators from highest priority to lowest priority:

operator Description
Escape character
(), (?:), (?=), [] Parentheses and square brackets
*, +,?, {n}, {n,}, {n,m} Qualifier
^, $, anymetacharacter Location and order
| "or" action

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.