Regex Match based on two strings using AND

Question

I want to extract commands from a string. The commands I need contain specific ids 124 and 123 and also specific flag od and xy. So I want to extract all those commands which contained my ids [123|124] and my flags[od|xy] only.

String: Z124xy54;Z123od33;Z123od343;Z251od541;Z251ab541;
Regex: Z[^;]*?(od|xy)[^;]*?;
Required Output: [Z124xy54; Z123od33; Z123od343;]
But Current Output : [Z123xy54; Z123od33; Z123od343; Z251od541;]

I know why its happening that way but don't know how to solve this. Any one could help please

Another Sample:

Z124xy54;Z123od33;Z123od343;Z251od541;Z251ab541;Z123od343;
Z124xy54;Z123od33;Z123od343;Z251od541;Z251ab541;Z123od343X

What's your logic reason matching `Z123od343;` but disqualifying `Z251od541;` ? — infotoni91, Nov 28 '16 at 07:42
ok, guys please check my quesiton now and please remove -ve rating whoever did that if my question is clear now. — Wasim A., Nov 28 '16 at 07:46
why not do the same or option with the numbers? `(123|124)`? — Fallenhero, Nov 28 '16 at 07:47
[`/\bZ12[34](?:od|xy)[^;]*;/g`](https://regex101.com/r/JTPcRW/2)? Where can the IDs appear? Could you just explain the syntax of these strings? — Wiktor Stribiżew, Nov 28 '16 at 07:48
@WiktorStribiżew could you please explain answer because above string was a sample and I need to understand to implement it in real way. — Wasim A., Nov 28 '16 at 07:58
To give you an answer please provide specifications. The majority of us do not like to play guessing games. Post the real life example string at least and specify what you need to extract from it and *why*. — Wiktor Stribiżew, Nov 28 '16 at 07:59

Ashraful Islam · Accepted Answer · 2016-11-28T08:37:38.260

1

Use :

(Z(?:123|124)(?:xy|od).*?(:?;|$))

Start with Z => (Z)
Match 123 or 124 without capturing group => (?:123|124)
Match zy or od without capturing group => (?:xy|od)
Match anything except newline untill first ; or end of string found without capturing group => (:?;|$)

Working Demo : https://regex101.com/r/AugDZT/2

edited Nov 28 '16 at 08:37

answered Nov 28 '16 at 07:56

Ashraful Islam

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could you please explain your answer? – Wasim A. Nov 28 '16 at 08:05
@WasimA. Added explaination – Ashraful Islam Nov 28 '16 at 08:09
what do you mean of without capturing group? – Wasim A. Nov 28 '16 at 08:15
i mean it will not save to group – Ashraful Islam Nov 28 '16 at 08:21
@WasimA. Updated answer – Ashraful Islam Nov 28 '16 at 08:37
thanks, it works, if anyone want answer for non-capture group like me, here is best answer http://stackoverflow.com/questions/3512471/what-is-a-non-capturing-group-what-does-a-question-mark-followed-by-a-colon – Wasim A. Nov 28 '16 at 09:14

Regex Match based on two strings using AND

1 Answers1