# Elasticsearch 5.6 Completion Suggester non-letter character problem
**URL:** https://discuss.elastic.co/t/elasticsearch-5-6-completion-suggester-non-letter-character-problem/130960
**Category:** Elasticsearch
**Created:** [May 8, 2018, 8:59am UTC](https://discuss.elastic.co/t/elasticsearch-5-6-completion-suggester-non-letter-character-problem/130960 "2018-05-08T08:59:45Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Adam\_Krajcs](https://discuss.elastic.co/u/Adam_Krajcs)
#### Post date: [May 8, 2018, 8:59am UTC](https://discuss.elastic.co/t/elasticsearch-5-6-completion-suggester-non-letter-character-problem/130960/1 "2018-05-08T08:59:45Z")
Hi,
We couldn't use the completion suggester for non-letter characters, like c++, or c#.
The default analyzer of the completion suggester is the simple. So from the c# text itt will create the following token:
{
"tokens": [
{
"token": "c",
"start\_offset": 0,
"end\_offset": 1,
"type": "word",
"position": 0
}
]
}
We tried with whitespace tokenizer plus lowercase filter. It creates the perfect token:
{
"tokens": [
{
"token": "c#",
"start\_offset": 0,
"end\_offset": 2,
"type": "word",
"position": 0
}
]
}
But the suggestion doesn't work
array (size=5)
'took' =\> int 0
'timed\_out' =\> boolean false
'\_shards' =\>
array (size=4)
'total' =\> int 3
'successful' =\> int 3
'skipped' =\> int 0
'failed' =\> int 0
'hits' =\>
array (size=3)
'total' =\> int 0
'max\_score' =\> float 0
'hits' =\>
array (size=0)
empty
'suggest' =\>
array (size=1)
'suggestion' =\>
array (size=1)
0 =\>
array (size=4)
'text' =\> string 'c#' (length=2)
'offset' =\> int 0
'length' =\> int 2
'options' =\>
array (size=0)
empty
What should we do?
---
### Author:  [@Adam\_Krajcs](https://discuss.elastic.co/u/Adam_Krajcs)
#### Post date: [May 8, 2018, 9:20am UTC](https://discuss.elastic.co/t/elasticsearch-5-6-completion-suggester-non-letter-character-problem/130960/2 "2018-05-08T09:20:39Z")
It's been solved. There was a problem, with input data
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 5, 2018, 9:20am UTC](https://discuss.elastic.co/t/elasticsearch-5-6-completion-suggester-non-letter-character-problem/130960/3 "2018-06-05T09:20:39Z")
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