# What should I do if I need special analyzer in ElasticSearch? **URL:** \ **Category:** Elasticsearch\ **Created:** [June 11, 2022, 4:58pm UTC](https://discuss.elastic.co/t/what-should-i-do-if-i-need-special-analyzer-in-elasticsearch/306941 "2022-06-11T16:58:11Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Gresmir](https://avatars.discourse-cdn.com/v4/letter/g/e47c2d/32.png) [@Gresmir](https://discuss.elastic.co/u/Gresmir)\ **Post date:** [June 11, 2022, 4:58pm UTC](https://discuss.elastic.co/t/what-should-i-do-if-i-need-special-analyzer-in-elasticsearch/306941/1 "2022-06-11T16:58:11Z")
In my textual data, I have structures like this: > ст. ст. 40, 131, 132, 176-178, 183, ч. 2 ст. 187, 188, 184, 189, 194 KK Where KK is the name of a codex, ст. ст., or ст. mean article, ч. mean part. I want Elasticsearch to find a similar string using a regular expression and execute a script to process this string so that I can get tokens like these > 40 KK, 131 KK, ..... 194 KK. How can I get it in Elasticsearch? ---
**Author:** ![Mikhail\_Khludnev](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mikhail_khludnev/32/59591_2.png) [@Mikhail\_Khludnev](https://discuss.elastic.co/u/Mikhail_Khludnev)\ **Post date:** [June 11, 2022, 7:00pm UTC](https://discuss.elastic.co/t/what-should-i-do-if-i-need-special-analyzer-in-elasticsearch/306941/2 "2022-06-11T19:00:50Z")
It seems like a specific entity extraction aka NER. I think it should be done in upstream (out of ES). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 9, 2022, 7:01pm UTC](https://discuss.elastic.co/t/what-should-i-do-if-i-need-special-analyzer-in-elasticsearch/306941/3 "2022-07-09T19:01:36Z")
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