A regex-pattern uses many special characters to describe a pattern. Ex., .
means “any character”, \\+
is “one or more” etc.
To use these characters, as a .
,\\+
etc., in a pattern, you need to escape them to remove their special meaning. This is done by using the escape character which is a backslash \\\\
in regex. Example: To search for \\+
, you would use the pattern \\+
.
It can be hard to remember all special characters in regex, so to escape every special character in a string you want to search for, you could use the [RegEx]::Escape("input")
method.
> [regex]::Escape("(foo)")
\\(foo\\)
> [regex]::Escape("1+1.2=2.2")
1\\+1\\.2=2\\.2