VBS Tutorial: Regular Expressions-Regular Expressions

VBS Tutorial: Regular Expressions-Regular Expressions

Regular Expression

If you have never used a regular expression, you may not be familiar with this term or concept. However, they are not as novel as you think.

Remember how to find files on the hard disk. Are you sure you want to use? And * characters to help find the file you are looking .? Character matches a single character in the file name, while * matches one or more characters. A file such as 'data ?. The following files can be found in the dat mode:

Data1.dat

Data2.dat

Datax. dat

DataN. dat

If "*" is used instead? Characters to expand the number of files found. 'Data *. dat 'can match all the following file names:

Data. dat

Data1.dat

Data2.dat

Data12.dat

Datax. dat

DataXYZ. dat

Although this file search method is certainly very useful, it is also very limited .? The limited capabilities of wildcard and * enable you to define what a regular expression can do. However, regular expressions are more powerful and flexible.