RegEx Match for list of links

[Axel_Albert]

Hi, I have a bot that grabs links and saves them in a txt file.

What I want, is to check if the link already exists inside that txt, so it won’t get added again.
This is how the txt looks inside

https://domain.com/323971BEDD
https://domain.com/1AC9FB8BAD
https://domain.com/21036C5DD8
https://domain.com/2A121D9397
https://domain.com/143BF87C9F
https://domain.com/21BAD005DD
https://domain.com/21BAD005DD2

I made the next RegEx inside the page regexr.com

As you see, it is matching exactly what I need. The problem comes when I try to use that expression in UiPath.

The link that will save in the txt (and thus the one that I want to check) comes inside a string variable, and inside the variable the format is exactly this one
“https:\/\/domain.com\/21BAD005DD(\n|$)”
As you see, I’m scaping the “/” characters due to the RegEx Match.

This is the RegEx Match that I’m using

System.Text.RegularExpressions.Regex.Match(strTxt, strLinkToCheck).Success

The variable “strLinkToCheck” contains

https:\/\/domain.com\/21BAD005DD(\n|$)

The variable “strText” contains

https://domain.com/21BAD005DD
https://domain.com/21BAD005DD2

The problem is that it always returns false inside UiPath when I run it. Doesn’t matter if the link is inside the txt or not, it always returns false.

Can anyone help?. I’ll will appreciate it.

[ppr (Peter Preuss)]

@Axel_Albert

https://domain.com/21BAD005DD2

selecting this case we would not work stringVar.contains method as it would wrongly match: https://domain.com/21BAD005DD

as an alternate pattern you can try:

Pattern with escaped dot:
\bhttps:\/\/domain\.com\/21BAD005DD\b

as alternate approach (we assume each line = 1 link) you can try:
isFound = File.ReadAllLines("YourFilePath").Any(Function (x) x.Trim.Equals("YourLinkString"))

[Axel_Albert]

I just tried your solution and using boundaries \b and scaping the dot, it works.

Thank you!