# `AshScylla.Search.Analyzer.Stemmer`
[🔗](https://github.com/ohhi-vn/ash_scylla/blob/main/lib/ash_scylla/search/analyzer/stemmer.ex#L1)

A simplified Porter stemming algorithm for English.

Reduces words to their root form:
  * "running" → "run"
  * "runner"  → "run"
  * "runs"    → "run"

This is not a full Porter stemmer but covers the most common English
suffixes. It is good enough for practical search use cases while
keeping the implementation simple and fast.

For production use with other languages, consider integrating a
purpose-built stemming library.

# `stem`

```elixir
@spec stem(String.t()) :: String.t()
```

Stems a single term to its root form.

Returns the original term unchanged if no stemming rule applies.

## Examples

    iex> Stemmer.stem("running")
    "run"

    iex> Stemmer.stem("runs")
    "run"

    iex> Stemmer.stem("easily")
    "easili"

    iex> Stemmer.stem("elixir")
    "elixir"

# `stem_all`

```elixir
@spec stem_all([String.t()]) :: [String.t()]
```

Stems a list of terms, removing duplicates after stemming.

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*Consult [api-reference.md](api-reference.md) for complete listing*