I've a regex that correctly captures values from the result of a string.
regex is look like;
intGetHatSaatRenk_v22=anyType{SiraNo=(.*?); HatKodu=(.*?) ; GunTipi=(.*?); Gidis=(.*?); ? };
But the problem is the source is like;
intGetHatSaatRenk_v22=anyType{SiraNo=54; HatKodu=502 ; GunTipi=C; Gidis=12:00; RenkGidis=0000FF; };
intGetHatSaatRenk_v22=anyType{SiraNo=55; HatKodu=502 ; GunTipi=C; Gidis=12:07; }; intGetHatSaatRenk_v22=anyType{SiraNo=56; HatKodu=502 ; GunTipi=C; Gidis=12:14; };
as you can see there is an optional field that named RenkGidis, how can i get the value from RenkGidis if it's not null?
with the regex code that i wrote above, i can get if RenkGidis exists in group(4) like 12:00; RenkGidis=0000FF but group(4) must be only 12:00.
I hope that I could explain my problem.
Might want to make the last group optional:
intGetHatSaatRenk_v22=anyType\{SiraNo=([^;\s]*);\s+HatKodu=([^;\s]*)\s*;\s+GunTipi=([^;\s]*);\s+Gidis=([^;\s]*);(?:\s+RenkGidis=([^;\s]*);)?
As a Java string:
"intGetHatSaatRenk_v22=anyType\\{SiraNo=([^;\\s]*);\\s+HatKodu=([^;\\s]*)\\s*;\\s+GunTipi=([^;\\s]*);\\s+Gidis=([^;\\s]*);(?:\\s+RenkGidis=([^;\\s]*);)?"
At the last group ( ?: prevents the group to be captured into output. ( inside ) catpured as usual.
Also changed .*? to [^;\s]* (negation of [;\s] -> any characters, that are no white-space or ;)
As Alan mentioned in the comments, for not getting a null match for the optional part, e.g. just make RenkGidis optional and wrap the value in an alternation with nothing: ([^;\s]*;|)
intGetHatSaatRenk_v22=anyType\{SiraNo=([^;\s]*);\s+HatKodu=([^;\s]*)\s*;\s+GunTipi=([^;\s]*);\s+Gidis=([^;\s]*);(?:\s+RenkGidis=)?([^;\s]*|)
As a Java string:
"intGetHatSaatRenk_v22=anyType\\{SiraNo=([^;\\s]*);\\s+HatKodu=([^;\\s]*)\\s*;\\s+GunTipi=([^;\\s]*);\\s+Gidis=([^;\\s]*);(?:\\s+RenkGidis=)?([^;\\s]*|)"
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