RegEx match in Google Script = null, but works in JSFiddle/RegExr

Question

I am trying to create a regex to be able to update calendar event titles that have different training names by turning them into their abbreviations. The regex I created seems to work fine in RegExr and fiddle, but not in google scripts. Can anyone help me figure out why?

Fiddle: https://jsfiddle.net/bpmsa6yr/1/#&togetherjs=vLRcJvkxx9

Google Script (search is null for "Hunt: Marketing Hub Fundamentals - Location Place")

  function abbrevTraining(title){
  console.log(title);
  var regEx = /(?:H[^\s]*)\s([A-Z]).*([A-Z])\w*\s([A-Z])\w*(\s-.*)$/;
  try {var search = title.match(regEx);
       console.log("regex search: "+search);
       var shift = search.shift();
    var newTitle = search.join('');
 
  console.log(title+" new: "+newTitle)
  return newTitle;
      }
  catch(e){return title;}
  
}

Apparently non-capture groups don't work in google scripts, and they aren't planning to fix it. issuetracker.google.com/issues/36753681 — Kendra Ring
– Kendra Ring, Commented Sep 29, 2020 at 3:42
I glad you found a solution, however, when I run this (or the sample text in the linked Google tracker issue) I get the expected app script output in the console. Strange. — wp78de
– wp78de, Commented Sep 29, 2020 at 3:56

Kendra Ring · Accepted Answer · 2020-09-29 03:42:25Z

2

Apparently non-capture groups don't work in google scripts, and they aren't planning to fix it. https://issuetracker.google.com/issues/36753681

I updated to this with success:

 var regEx = /^H.*\s([A-Z]).*\s([A-Z])\w*\s([A-Z])\w*(\s-.*)$/;

answered Sep 29, 2020 at 3:42

Kendra Ring

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2 Comments

TheMaster Over a year ago

The issue is no more valid. I get expected output with both the issuetracker example and your question example also works without error. search is not null. You must have made a mistake in your function that calls abbrevTraining

TheMaster Over a year ago

Reproduced the issue with rhino.

TheMaster · Accepted Answer · 2020-09-29 07:33:19Z

1

This issue is

reproducible in rhino engine and
NOT reproducible in v8 engine.

The issue is already fixed in the newer engine and you should stop using the deprecated engine to dig out old bugs.

answered Sep 29, 2020 at 7:33

TheMaster

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