I'm trying to extract the value from this string using regex but I can't seem to get it right.
string:
?Ntt=crockett%20&%20Jones&Rdm=718&searchType=simple&type=search&Ns=&N=&Nrpp=12&No=0&Nr=AND(product.active:1,NOT(record.type:Store))
I need the value of Ntt which is crockett%20&%20Jones.
The regex I have currently is:
\?Ntt=(([&%])|([^&=]))*
but this results in:
?Ntt=crockett%20&%20Jones&Rdm
How can I update my regex to produce the value I need?
You can use a capturing group based regex like
[&?]Ntt=((?:%20&%20|[^&])*)
See the regex demo.
Alternatively, you can use a lookbehind based regex like
(?<=[&?]Ntt=)(?:%20&%20|[^&])*
See the regex demo.
Details
(?<=[&?]Ntt=) - a positive lookbehind that matches a location that is immediately preceded with ? or & and then Ntt=(?:%20&%20|[^&])* - a non-capturing group that matches zero or more occurrences of a %20&%20 substring or any char other than &.[&\?]Ntt=([^&]*)
First capture the separator (either ? or &), then capture the key, then capture everything until the next separator.