Golang regex for requiring multiple capture groups

Question

I'm sure I'm missing something obvious, but I'm trying to match multiple capture groups, requiring one of each and can't see what's wrong. This is regex for Golang.

Given:

abc.com
abc.com/help
abc.com/win
abc.com/lose
abc.com/lose/wowyoulost
www.abc.com/win
www.abc.com/really/you/win
cde.com
cde.com/win

And the regex:

(abc\.com)+(win|lose)+

I am trying to require 1 or more of the first group and 1 or more of the second group. The intended outcome should be:

abc.com - NO MATCH
abc.com/help - NO MATCH
abc.com/win - MATCH
abc.com/lose - MATCH
abc.com/lose/wowyoulost - MATCH
www.abc.com/win - MATCH
www.abc.com/really/you/win - MATCH
cde.com - NO MATCH
cde.com/win - NO MATCH

What am I doing wrong?

Do you mean ^abc\.com/(win|lose)? See regex101.com/r/Gjpkl7/1. Note that your regex could not match the strings because there is no / in the pattern to match the / in the strings. — Wiktor Stribiżew
– Wiktor Stribiżew, Commented Apr 28, 2020 at 12:55
No, I'd want it to match www.abc.com as well, so no demarcation of start or ends - same for the text fragments on the back. I'll edit to clarify. — Christopher Penn
– Christopher Penn, Commented Apr 28, 2020 at 13:03
Sorry, still not clear, see ^(?:www\.)?abc\.com(?:/[^/]+)*/[^/]*(?:win|los[te]) demo (where all [^/] are replaced with [^/\n] since it is a single multiline string demo) — Wiktor Stribiżew
– Wiktor Stribiżew, Commented Apr 28, 2020 at 13:06

Dinei · Accepted Answer · 2020-04-28 13:07:55Z

1

What you want is the lazy quantifier: .*?:

abc\.com/.*?(win|lose)

See https://regex101.com/r/STl8t7/1

answered Apr 28, 2020 at 13:07

Dinei

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