# Custom filer to extract some phrases

**URL:** <https://discuss.elastic.co/t/custom-filer-to-extract-some-phrases/13160>\
**Category:** Elasticsearch\
**Created:** [August 10, 2013, 7:30am UTC](https://discuss.elastic.co/t/custom-filer-to-extract-some-phrases/13160 "2013-08-10T07:30:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Faillissements\_Dossi](https://avatars.discourse-cdn.com/v4/letter/f/ea666f/32.png) [@Faillissements\_Dossi](https://discuss.elastic.co/u/Faillissements_Dossi)\
**Post date:** [August 10, 2013, 7:30am UTC](https://discuss.elastic.co/t/custom-filer-to-extract-some-phrases/13160/1 "2013-08-10T07:30:59Z")

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Hi,

I would like to build a custom analyzer to extract only specific phrases  
from a text.

text:  
"te vermeerderen met 8% vakantietoeslag en een dertiende maand zolang als  
het dienstverband voortduurt en voorts tot betaling van de wettelijke boete  
ex artikel 7:625 BW over de inmiddels verschenen loontermijnen en tot  
betaling van de wettelijke rente vanaf de, naar het hof begrijpt, vervaldag  
van iedere afzonderlijke loontermijn ex artikel 7:623 BW, althans"

Result shoud be: "artikel 7:625 BW" and " artikel 7:623 BW"

The syntax for the analyzer is:  
"pattern": "(art.\*?BW)",  
"type": "pattern"

But in stead of the two phrases it returns all the text except the phrase,  
using the phrases as delimiter.

Wat do I need to do to get only the two phrases returned for this analyzer?

Thanks, Marcel

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**Author:** ![brian\_yoder](https://avatars.discourse-cdn.com/v4/letter/b/f1d935/32.png) [@brian\_yoder](https://discuss.elastic.co/u/brian_yoder)\
**Post date:** [August 12, 2013, 5:52pm UTC](https://discuss.elastic.co/t/custom-filer-to-extract-some-phrases/13160/2 "2013-08-12T17:52:29Z")

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Marcel,

Perhaps this would help?

> **[Elasticsearch Platform — Find real-time answers at scale](https://www.elastic.co)**
>
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Brian

On Saturday, August 10, 2013 3:30:59 AM UTC-4, Faillissements Dossier wrote:

> Hi,
> 
> I would like to build a custom analyzer to extract only specific phrases  
> from a text.
> 
> text:  
> "te vermeerderen met 8% vakantietoeslag en een dertiende maand zolang als  
> het dienstverband voortduurt en voorts tot betaling van de wettelijke boete  
> ex artikel 7:625 BW over de inmiddels verschenen loontermijnen en tot  
> betaling van de wettelijke rente vanaf de, naar het hof begrijpt, vervaldag  
> van iedere afzonderlijke loontermijn ex artikel 7:623 BW, althans"
> 
> Result shoud be: "artikel 7:625 BW" and " artikel 7:623 BW"
> 
> The syntax for the analyzer is:  
> "pattern": "(art.\*?BW)",  
> "type": "pattern"
> 
> But in stead of the two phrases it returns all the text except the phrase,  
> using the phrases as delimiter.
> 
> Wat do I need to do to get only the two phrases returned for this analyzer?
> 
> Thanks, Marcel

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**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, 2:21am UTC](https://discuss.elastic.co/t/custom-filer-to-extract-some-phrases/13160/3 "2017-07-06T02:21:30Z")

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