# Custom Token Filter: selectively remove .(dot) at end of word or catenate letter around .(dot)
**URL:** https://discuss.elastic.co/t/custom-token-filter-selectively-remove-dot-at-end-of-word-or-catenate-letter-around-dot/21061
**Category:** Elasticsearch
**Created:** [December 3, 2014, 2:37pm UTC](https://discuss.elastic.co/t/custom-token-filter-selectively-remove-dot-at-end-of-word-or-catenate-letter-around-dot/21061 "2014-12-03T14:37:03Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Jade\_Tremblay](https://discuss.elastic.co/u/Jade_Tremblay)
#### Post date: [December 3, 2014, 2:37pm UTC](https://discuss.elastic.co/t/custom-token-filter-selectively-remove-dot-at-end-of-word-or-catenate-letter-around-dot/21061/1 "2014-12-03T14:37:03Z")
Hello,
I have created a custom analyzer with (tokenizer: whitespace).
I would like to remove dot only at the end of words AND catenate
letter/words if dot are between letters (ex: a.b.c =\> abc).
What is the way to handle this in ES?
I have try word\_delimiter but it split words as soon as a dot is hit, I
don't wan't this behaviour.
Here is an example:
Sentence "the quick brown. fox.asd"
With actual analyzer, it gives
the 1quick 2brown. 3fox.asd 4
I would like to have
the 1quick 2brown 3foxasd 4
"html\_exact\_analyser": {
"char\_filter": [
"html\_strip"
],
"filter": [
"lowercase",
"asciifolding"
],
"tokenizer": "whitespace"
},
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---
### Author:  [@Jade\_Tremblay](https://discuss.elastic.co/u/Jade_Tremblay)
#### Post date: [December 3, 2014, 3:41pm UTC](https://discuss.elastic.co/t/custom-token-filter-selectively-remove-dot-at-end-of-word-or-catenate-letter-around-dot/21061/2 "2014-12-03T15:41:04Z")
I've been able to figure out how to do this with a char\_filter
ref: [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-pattern-replace-charfilter.html)
"char\_filter": {
"remove\_dot\_pattern": {
"type": "pattern\_replace",
"pattern": ".",
"replacement": ""
}
}
Le mercredi 3 décembre 2014 09:37:03 UTC-5, Jade Tremblay a écrit :
> Hello,
>
> I have created a custom analyzer with (tokenizer: whitespace).
> I would like to remove dot only at the end of words AND catenate
> letter/words if dot are between letters (ex: a.b.c =\> abc).
> What is the way to handle this in ES?
> I have try word\_delimiter but it split words as soon as a dot is hit, I
> don't wan't this behaviour.
>
> Here is an example:
>
> Sentence "the quick brown. fox.asd"
>
> With actual analyzer, it gives
>
> the 1quick 2brown. 3fox.asd 4
>
> I would like to have
> the 1quick 2brown 3foxasd 4
>
> "html\_exact\_analyser": {
> "char\_filter": [
> "html\_strip"
> ],
> "filter": [
> "lowercase",
> "asciifolding"
> ],
> "tokenizer": "whitespace"
> },
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---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 12:46am UTC](https://discuss.elastic.co/t/custom-token-filter-selectively-remove-dot-at-end-of-word-or-catenate-letter-around-dot/21061/3 "2017-07-06T00:46:10Z")