How to use Expression

1. Download and install Expression. You can use the binary packages provided at gidix.de in the upper right corner.
2. Open Expression.
3. In the top bar you write your Regular Expression to apply. For example: ((ht|f)tps?:\/\/)?www\.. This code will replace every sequence of https://www., http://www., ftp://www. and ftps://www..
4. In the field "REPLACE WITH" underneath the regular expression you write something that should replace every found sequence, i.e. replaced.
5. In the left hand sidebar you write a block of text the regular expression should be applied on. For example: I am a https://www.test.
6. In the right hand sidebar you will see the result (which should have replaced https://www. with replaced.