RegEx: lookahead get only first occurrence

(modified) Trying to get only first match of condition (?<=Location:.*?().*?(?=))

Here is data:

--batchresponse_bla_bla_bla_rn--changesetresponse__bla_bla_bla_rnLocation: https://site.ru/CRM/api/data/v9.0/gm_preorders(a341eb4e-2fdf-eb11-a30b-ac1f6b465e3b)rnOData-EntityId: https://site.ru/CRM/api/data/v9.0/gm_preorders(a341eb4e-2fdf-eb11-a30b-ac1f6b465e3b)rn_bla_bla_bla_rn--changesetresponse__bla_bla_bla_Location: https://site.ru/CRM/api/data/v9.0/gm_preorders(a841eb4e-2fdf-eb11-a30b-ac1f6b465e3b)rnOData-EntityId: https://site.ru/CRM/api/data/v9.0/gm_preorders(a841eb4e-2fdf-eb11-a30b-ac1f6b465e3b)rn_bla_bla_bla_rn--changesetresponse_n_bla_bla_bla_rnLocation: https://site.ru/CRM/api/data/v9.0/gm_preorders(74748d08-2ee6-eb11-a30b-ac1f6b465e3b)rnOData-EntityId: https://site.ru/CRM/api/data/v9.0/gm_preorders(74748d08-2ee6-eb11-a30b-ac1f6b465e3b)rnn_bla_bla_bla_rn--changesetresponse_etc

and it returns:

match 1:    a341eb4e-2fdf-eb11-a30b-ac1f6b465e3b
match 2:    a341eb4e-2fdf-eb11-a30b-ac1f6b465e3b
match 3:    a841eb4e-2fdf-eb11-a30b-ac1f6b465e3b
match 4:    a841eb4e-2fdf-eb11-a30b-ac1f6b465e3b
match 5:    74748d08-2ee6-eb11-a30b-ac1f6b465e3b
match 6:    74748d08-2ee6-eb11-a30b-ac1f6b465e3b

Is there a possibility to match only first occurrence of each match (so i need 3 matches: 1, 3 and 5) with lookbehind and lookahead and without grouping or other conditions?

Found solution with a help:

(?<=Location:[^(]*?().*?(?=))

Answer

You may use

(?<=Location:[^(]*([^(]*()[^)]*(?=))
(?<=Location:[wW]*?()(.*?)(?=))(?![wW]*1)

See the regex demo #1 and regex #2 demo.

Details:

• (?<=Location:[^(]*([^(]*() – a location preceded with Location:, zero or more chars other than (, a (, and then again zero or more chars other than ( and then a (
• [^)]* – zero or more chars other than )
• (?=)) – a ) char must appear immediately on the right.
• (?<=Location:[wW]*?() – a positive lookbehind that matches a location that is immediately preceded with
  • Location: – a Location: string
  • [wW]*? – zero or more chars as few as possible
  • ( – a ( char
• (.*?) – Group 1: zero or more chars other than line break chars, as few as possible
• (?=)) – immediately to the right, there must be a ) char.
• (?![wW]*1) – no Group 1 value cannot be located further in the string.