Hunspell (WebAssembly port)

WebAssembly port of the Hunspell spell-checking library.

Includes an easy-to-use wrapper written in TypeScript.

Installation

npm install hunspell-wasm

Usage

// Import
import { createHunspellFromFiles } from 'hunspell-wasm'

// Create instance (dictionary paths are illustrative)
const hunspell = await createHunspellFromFiles('dict/en-US.aff', 'dict/en-US.dic')

console.log(hunspell.testSpelling('Hello'))
// Output: true

console.log(hunspell.testSpelling('Hellow'))
// Output: false

console.log(hunspell.getSpellingSuggestions('Hellow'))
// Output: [ 'Hello', 'Hell ow', 'Hello w', 'Howell', 'Lowell' ]

// Dispose instance
hunspell.dispose()

You can also create the Hunspell instance using affix and dictionary file content given as strings, instead of file paths:

import { createHunspellFromStrings } from 'hunspell-wasm'

const affixes = ``

const dictionary = `
Hello
World
`

const hunspell = await createHunspellFromStrings(affixes, dictionary)

Add or remove words from dictionary:

hunspell.addWord('foobar')
hunspell.removeWord('foobar')

Add a dictionary using hunspell.addDictionaryFromFile or hunspell.addDictionaryFromString:

await hunspell.addDictionaryFromFile('dict/myDictionary.dic')

const dictionaryString = `
Yes
No
`

hunspell.addDictionaryFromString(dictionaryString)

Other supported methods:

hunspell.getSuffixSuggestions('run')
// Output: [ 'runs', "run's" ]

hunspell.analyzeWord('Capturing')
// Output: [ ' st:capture fl:G' ]

hunspell.stemWord('Capturing')
// Output: [ 'capture' ]

Importing from within a CommonJS module

Use a dynamic import expression in an async function context:

MyCommonJSModule.cjs:

async function start() {
	const { createHunspellFromFiles } = await import('hunspell-wasm')

	//...
}

Dictionary files

You can find .aff and .dic dictionary files for many different languages in titoBouzout's repository.

Building the WebAssembly module

See instructions here.

TODO

• Wrap C API methods Hunspell_stem2, Hunspell_generate2

License

Hunspell is licensed under LGPL/GPL/MPL tri-license.