Multiple regex matches in Google Sheets formula

Question

I\'m trying to get the list of all digits preceding a hyphen in a given string (let\'s say in cell A1), using a Google Sheets regex formula :

=R         


        

Answer 1

You may create your own custom function in the Script Editor:

function ExtractAllRegex(input, pattern,groupId) {
  return Array.from(input.matchAll(new RegExp(pattern,'g')), x=>x[groupId]);
}

Or, if you need to return all matches in a single cell joined with some separator:

function ExtractAllRegex(input, pattern,groupId,separator) {
  return Array.from(input.matchAll(new RegExp(pattern,'g')), x=>x[groupId]).join(separator);
}

Then, just call it like =ExtractAllRegex(A1, "\d-", 0, ", ").

Description:

• input - current cell value
• pattern - regex pattern
• groupId - Capturing group ID you want to extract
• separator - text used to join the matched results.