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[DOCS] Note that `trim` filter doesn't change offsets (#53220) 

The [word delimiter graph token filter docs][0] note that the `trim`
filter changes the length of tokens without changing their offsets.

This explicitly mentions that in the `trim` filter docs.

[0]: https://www.elastic.co/guide/en/elasticsearch/reference/master/analysis-word-delimiter-graph-tokenfilter.html
This commit is contained in:
James Rodewig 2020-03-06 07:27:14 -05:00
parent 9abf537527
commit 9bb9f63364
1 changed files with 6 additions and 3 deletions
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9
docs/reference/analysis/tokenfilters/trim-tokenfilter.asciidoc
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@ -4,7 +4,9 @@
<titleabbrev>Trim</titleabbrev>
++++
Removes leading and trailing whitespace from each token in a stream.
Removes leading and trailing whitespace from each token in a stream. While this
can change the length of a token, the `trim` filter does _not_ change a token's
offsets.
The `trim` filter uses Lucene's
https://lucene.apache.org/core/{lucene_version_path}/analyzers-common/org/apache/lucene/analysis/miscellaneous/TrimFilter.html[TrimFilter].
@ -37,8 +39,9 @@ GET _analyze
}
----
The API returns the following response. Note the `" fox "` token contains
the original text's whitespace.
The API returns the following response. Note the `" fox "` token contains the
original text's whitespace. Note that despite changing the token's length, the
`start_offset` and `end_offset` remain the same.
[source,console-result]
----