Regular Expression Tester for Google RE2 [closed]

Question

I'm looking for a regular expression tester for Google Big Data (RE2) reg expressions. There are a few testers out there, but none of them seems to understand my statement. These are the ones I've tried and they've worked for simple expressions but not with mine:

• https://regex101.com/
• https://www.regextester.com
• https://www.analyticsmarket.com/freetools/regex-tester/

This is my regex:

^(?:1-)?((?:R|RO|Ro)?[:|.]?\\s?\\d{3}[-|.]?\\d{4}[-|/]F\\d{2}-\\d{2})$

where I would process strings like these:

• Ro 708-2859/F07-01
• RO708-2859-F06-04
• RO703-3877-F01
• 1-RO520-0628-F08
• RO6868847-000-010

Does anyone have an idea of how I might enter the statement different or where I could test it?

Answer 1

You can use

^(?:1-)?((?:R[Oo]?)?[:.]?\s?\d{3}[-.]?\d{4}[-/](?:F\d{2}(?:-\d{2})?|\d{3}[-/]\d{3}))$

See the regex demo. Details:

• ^ - start of string
• (?:1-)? - an optional 1- string
• ((?:R[Oo]?)?[:.]?\s?\d{3}[-.]?\d{4}[-/](?:F\d{2}(?:-\d{2})?|\d{3}[-/]\d{3})) - Group 1:
  • (?:R[Oo]?)? - an optional sequence of R and then an optional O or o
  • [:.]? - an optional : or .
  • \s? - an optional whitespace
  • \d{3} - three digits
  • [-.]? - an optional - or .
  • \d{4} - four digits
  • [-/] - - or /
  • (?:F\d{2}(?:-\d{2})?|\d{3}[-/]\d{3}) - either F, two digits and then an optional sequence of - and two digits, or three digits, - or / and three digits
• $ - end of string.

See the Google Sheets demo: