Event Rule Regex Parsing

[Ronan Lucio Per]

I`m trying to create a regex to extract a server tag from a tags list. The tags field is similar to the string below?

[[CONTEXT]OU:IT, [CONTEXT]NAME:xyz.internal, [CONTEXT]KIND:kind1]

or

[[CONTEXT]OU:SALES, [CONTEXT]NAME:xyz.internal]

I`m using the regex below:

.*\[CONTEXTLESS\]CI:(.*?)[,\]]

The problem I'm facing is I expect a result like "xyz.internal" but I'm getting the result "xyz.internal, [CONTEXT]KIND:kind1"

I have tested it on regex101.com and it works as expected there, but not on ServiceNow Event Rule.

Any help would be appreciated

[pratiksha5]

Did you find any solution for this?

[Amit Gujarathi]

Hi @Ronan Lucio Per ,
I trust you are doing great.
Here's an updated regex pattern that should give you the desired result:

\[CONTEXT\]NAME:(.*?)(?:,|\])

This pattern will match the string "[CONTEXT]NAME:" followed by any characters (non-greedy) until it encounters either a comma or a closing square bracket.

Here's an example of how you can use this regex pattern in ServiceNow:

// Assuming the tags list is stored in a variable called 'tags'
var tags = '[[CONTEXT]OU:IT, [CONTEXT]NAME:xyz.internal, [CONTEXT]KIND:kind1]';
var regexPattern = /\[CONTEXT\]NAME:(.*?)(?:,|\])/;
var matches = regexPattern.exec(tags);

// 'matches' will contain an array where the first element is the complete match,
// and the second element is the extracted server tag
if (matches && matches.length >= 2) {
  var serverTag = matches[1];
  gs.info('Extracted server tag: ' + serverTag);
} else {
  gs.info('No server tag found in the tags list.');
}