# How can I put together a case-insensitive analyzer for tokens? **URL:** \ **Category:** Elasticsearch\ **Created:** [November 19, 2013, 5:16pm UTC](https://discuss.elastic.co/t/how-can-i-put-together-a-case-insensitive-analyzer-for-tokens/14471 "2013-11-19T17:16:00Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![pulkitsinghal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pulkitsinghal/32/802_2.png) [@pulkitsinghal](https://discuss.elastic.co/u/pulkitsinghal)\ **Post date:** [November 19, 2013, 5:16pm UTC](https://discuss.elastic.co/t/how-can-i-put-together-a-case-insensitive-analyzer-for-tokens/14471/1 "2013-11-19T17:16:00Z")
My input tokens are like: abcd-123 ABCD-123 abCD-123 Right now I don't analyze them at all but that comes back to bite me if someone searches for them with the wrong case-sensitivity. So I want to use or put together an analyzer that doesn't break these tokens apart but still allows them to be analyzed for case-insensitive search later. Any suggestions? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![mattweber](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mattweber/32/44940_2.png) [@mattweber](https://discuss.elastic.co/u/mattweber)\ **Post date:** [November 19, 2013, 5:25pm UTC](https://discuss.elastic.co/t/how-can-i-put-together-a-case-insensitive-analyzer-for-tokens/14471/2 "2013-11-19T17:25:56Z")
Configure a custom analyzer with the keyword tokenizer and lowercase token filter. index : analysis : analyzer : lowerKeyword: type : custom tokenizer : keyword filter : [lowercase] Thanks, Matt Weber On Tue, Nov 19, 2013 at 9:16 AM, pulkitsinghal [pulkitsinghal@gmail.com](mailto:pulkitsinghal@gmail.com)wrote: > My input tokens are like: > abcd-123 > ABCD-123 > abCD-123 > > Right now I don't analyze them at all but that comes back to bite me if > someone searches for them with the wrong case-sensitivity. > > So I want to use or put together an analyzer that doesn't break these > tokens apart but still allows them to be analyzed for case-insensitive > search later. Any suggestions? > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![pulkitsinghal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pulkitsinghal/32/802_2.png) [@pulkitsinghal](https://discuss.elastic.co/u/pulkitsinghal)\ **Post date:** [November 19, 2013, 9:06pm UTC](https://discuss.elastic.co/t/how-can-i-put-together-a-case-insensitive-analyzer-for-tokens/14471/3 "2013-11-19T21:06:56Z")
> index : > analysis : > analyzer : > lowerKeyword: > type : custom > tokenizer : keyword > filter : [lowercase] Thanks a lot Matt! Can anyone additionally tell me how to set this up programmatically via java? I don't know how to set a name (like lowerKeyword) for the analyzer ... here's what I have so far: indexerSettings.put("analysis.analyzer.events.type", "custom"); indexerSettings.put("analysis.analyzer.events.tokenizer", "keyword"); indexerSettings.put("analysis.analyzer.events.filter", "lowercase"); -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![pulkitsinghal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pulkitsinghal/32/802_2.png) [@pulkitsinghal](https://discuss.elastic.co/u/pulkitsinghal)\ **Post date:** [November 19, 2013, 11:48pm UTC](https://discuss.elastic.co/t/how-can-i-put-together-a-case-insensitive-analyzer-for-tokens/14471/4 "2013-11-19T23:48:58Z")
Cihat Keser, over from Jest [https://github.com/searchbox-io/Jest](https://github.com/searchbox-io/Jest), pointed out that the string "events" in the code block below is what constitutes as the name for an analyzer: ``` indexerSettings.put("analysis.analyzer.events.type", "custom"); ``` > ``` > indexerSettings.put("analysis.analyzer.events.tokenizer", "keyword"); > indexerSettings.put("analysis.analyzer.events.filter", "lowercase"); > > ``` -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:06am UTC](https://discuss.elastic.co/t/how-can-i-put-together-a-case-insensitive-analyzer-for-tokens/14471/5 "2017-07-06T02:06:08Z")