CODEWITHSUNDEEP
regex
DaddyRatel
DaddyRatel

Reputation: 739

Need a regular expression - disallow only zeros, allow zeros with other numbers

I want to validate a string to meet the following patterns:

00;0 (disallow)
00;00 (disallow)
01;123 (disallow)
00;1
00; (disallow)
00;000000 (disallow)
00;1234567890123 (disallow)
00;123456789012
00;10
00;01
00;00001
00;00100
00;0202020
00;1000000
00;00100100

In general, the string should be ^00;\d{1,12}$ but how to eliminate unnecessary lines in the example above and resolve the necessary in one regex expression?

Thanks.

Upvotes: 1

Views: 134

Answers (1)

anubhava
anubhava

Reputation: 785186

You may use this regex:

^00;(?!0+$)\d{1,12}$

RegEx Demo

RegEx Details:

  • ^00;: Match 00; at start of line
  • (?!0+$): Negative lookahead to fail the match if we have all zeroes
  • \d{1,12}$: Match 1 to 12 characters of any digit before end

Upvotes: 1

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