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trigram-utils
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A few language trigram utilities.
This package contains a few utilities that can help when working with trigram (an n-gram where each slice is 3 characters) based natural language detection.
Probably not often, except when you want to create something like franc, but build it in something other than UDHR.
This package is ESM only. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:
npm install trigram-utils
In Deno with Skypack:
import * as trigramUtils from 'https://cdn.skypack.dev/trigram-utils@2?dts'
In browsers with Skypack:
<script type="module">
import * as trigramUtils from 'https://cdn.skypack.dev/trigram-utils@2?min'
</script>
import {clean, trigrams, asDictionary, asTuples, tuplesAsDictionary} from 'trigram-utils'
clean(' t@rololol ') // => 't rololol'
trigrams(' t@rololol ')
// => [' t ', 't r', ' ro', 'rol', 'olo', 'lol', 'olo', 'lol', 'ol ']
asDictionary(' t@rololol ')
// => {'ol ': 1, lol: 2, olo: 2, rol: 1, ' ro': 1, 't r': 1, ' t ': 1}
const tuples = asTuples(' t@rololol ')
// => [
// ['ol ', 1],
// ['rol', 1],
// [' ro', 1],
// ['t r', 1],
// [' t ', 1],
// ['lol', 2],
// ['olo', 2]
// ]
tuplesAsDictionary(tuples)
// => {olo: 2, lol: 2, ' t ': 1, 't r': 1, ' ro': 1, rol: 1, 'ol ': 1}
This package exports the following identifiers: clean
, trigrams
,
asDictionary
, asTuples
, tuplesAsDictionary
.
There is no default export.
clean(value)
Clean a value (string
).
Strips some (for language detection) useless punctuation, symbols, and numbers.
Collapses white space, trims, and lowercases.
trigrams(value)
From a value (string
), make clean, padded trigrams (see n-gram
)
(Array<string>
).
asDictionary(value)
From a value (string
), get clean trigrams as a dictionary
(Record<string, number>
): keys are trigrams, values are occurrence counts.
asTuples(value)
From a value (string
), get clean trigrams with occurrence counts as a tuple
(Array<[string, number]>
): first index (0
) the trigram, second (1
) the
occurrence count.
tuplesAsDictionary(tuples)
Turn trigram tuples (Array<[string, number]>
) into a dictionary
(Record<string, number>
).
This package is fully typed with TypeScript.
It exports an additional Gemoji
type that models its respective interface.
This package is at least compatible with all maintained versions of Node.js. As of now, that is Node.js 12.20+, 14.14+, and 16.0+. It also works in Deno and modern browsers.
This package is safe.
words/trigrams
— trigrams for 400+ languages based on UDHRwords/n-gram
— get n-grams from textwooorm/franc
— natural language detectionYes please! See How to Contribute to Open Source.
FAQs
A few language trigram utilities
We found that trigram-utils demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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