Hi All,
I am looking after fixing a bug and there I find this expression:-
directoryPath = Regex.Replace(directoryPath, "[^\\w\\.@-]", "");
but as a result of the expression all the high ascii characters in directory path are messed up, I am not good at regex and dont know about it but for now I have to fix the issue .
Can someone please explain me what this regular expression does?
It appears to be removing the first character from directoryPath that is not a word character (digits, letters, underscores), period, @ symbol or hyphen.
I've just tried it with C:\Scratch\Filename.txt, and it leaves me with CScratchFilename.txt.
It seems that you are having encoding issues. For example, Regex could have treated your string as ASCII when it really was stored as UTF-8.
It replaces anything that is NOT
word character OR. (dot) OR@ OR- (dash)
with nothing.
INPUT
var directoryPath = @"C.@-(:\abc123/\def.foo";
OUTPUT
[email protected]
Modified code to replace with space and corresponding output
var directoryPath = @" @.-abcd efghi(^-^)/\:[email protected] [email protected]";
Console.WriteLine(directoryPath);
//note change here
//second argument to Replace function is chanted from "" to " "
directoryPath = Regex.Replace(directoryPath, "[^\\w\\.@-]", " ");
Console.WriteLine(directoryPath);
Output:
@.-abcd efghi(^-^)/\:[email protected] [email protected]
@.-abcd efghi - [email protected] [email protected]