7.1

Table Of Contents

• {n} Exactly n occurrences.

• {n,} At least n occurrences.

• {n,m} Between n and m occurrences.

There are 12 characters with special meanings:

• the opening square bracket [

• the backslash \

• the forward slash /

• the caret ^

• the dollar sign $

• the period or dot .

• the vertical bar or pipe symbol |

• the question mark ?

• the asterisk or star *

• the plus sign +

• the opening round bracket (

• the closing round bracket )

Special characters can be escaped by placing a backslash \ before the special character. A backslash can be

matched using \\.

Introduction to Regular Expressions - Syntax