Reverse token filter

Reverses each token in a stream. For example, you can use the reverse filter to change the quick brown to eht kciuq nworb.

This can be used in combination with the index_prefixes field mapping option to support suffix searches on a field.

Add to an analyzer

reverse can be added to any analyzer as a filter.

JSON

"analyzer": {
  "reverse_analyzer": {
    "type": "custom",
    "tokenizer": "standard",
    "filter": ["reverse"]
  }
}