About

Stop words are words that don't carry much meaning, and are typically removed as a preprocessing step before text analysis or natural language processing. This crate contains common stop words for a variety of languages. This crate uses stop word lists from Stopwords ISO and also from NLTK.

Usage

Using this crate is fairly straight-forward:

// Get the stop words
let words = stop_words::get(stop_words::LANGUAGE::English);

// Print them
for word in words {
    println!("{}", word);
}

The function get will take either a member of the LANGUAGE enum or a two-letter ISO language code as either a str or a String type.

You can find a complete example of how to read in a text file and remove stop words here.

ISO Language Availability

This crate supports all languages from Stopwords ISO and also from NLTK. Expand the table below to see a comprehensive description.

Language Coverage Table

ISO 639-1 Code	Language	Stopwords ISO	NLTK
aa	Afar
ab	Abkhazian
af	Afrikaans	✓
ak	Akan
sq	Albanian
am	Amharic
ar	Arabic	✓	✓
an	Aragonese
hy	Armenian	✓
as	Assamese
av	Avaric
ae	Avestan
ay	Aymara
az	Azerbaijani		✓
ba	Bashkir
bm	Bambara
eu	Basque	✓
be	Belarusian
bn	Bengali	✓
bh	Bihari languages
bi	Bislama
bo	Tibetan
bs	Bosnian
br	Breton	✓
bg	Bulgarian	✓
my	Burmese
ca	Catalan; Valencian	✓
cs	Czech	✓
ch	Chamorro
ce	Chechen
zh	Chinese	✓
cu	Church Slavic; Old Slavonic; Church Slavonic; Old Bulgarian; Old Church Slavonic
cv	Chuvash
kw	Cornish
co	Corsican
cr	Cree
cy	Welsh
da	Danish	✓	✓
de	German	✓	✓
dv	Divehi; Dhivehi; Maldivian
nl	Dutch; Flemish	✓	✓
dz	Dzongkha
el	Greek, Modern (1453-)	✓	✓
en	English	✓	✓
eo	Esperanto	✓
et	Estonian	✓
ee	Ewe
fo	Faroese
fa	Persian	✓
fj	Fijian
fi	Finnish	✓	✓
fr	French	✓	✓
fy	Western Frisian
ff	Fulah
ka	Georgian
gd	Gaelic; Scottish Gaelic
ga	Irish	✓
gl	Galician	✓
gv	Manx
gn	Guarani
gu	Gujarati	✓
ht	Haitian; Haitian Creole
ha	Hausa	✓
he	Hebrew	✓
hz	Herero
hi	Hindi	✓
ho	Hiri Motu
hr	Croatian	✓
hu	Hungarian	✓	✓
ig	Igbo
is	Icelandic
io	Ido
ii	Sichuan Yi; Nuosu
iu	Inuktitut
ie	Interlingue; Occidental
ia	Interlingua (International Auxiliary Language Association)
id	Indonesian	✓	✓
ik	Inupiaq
it	Italian	✓	✓
jv	Javanese
ja	Japanese	✓
kl	Kalaallisut; Greenlandic
kn	Kannada
ks	Kashmiri
kr	Kanuri
kk	Kazakh		✓
km	Central Khmer
ki	Kikuyu; Gikuyu
rw	Kinyarwanda
ky	Kirghiz; Kyrgyz
kv	Komi
kg	Kongo
ko	Korean	✓
kj	Kuanyama; Kwanyama
ku	Kurdish	✓
lo	Lao
la	Latin	✓
lv	Latvian	✓
li	Limburgan; Limburger; Limburgish
ln	Lingala
lt	Lithuanian	✓
lb	Luxembourgish; Letzeburgesch
lu	Luba-Katanga
lg	Ganda
mk	Macedonian
mh	Marshallese
ml	Malayalam
mi	Maori
mr	Marathi	✓
ms	Malay	✓
mg	Malagasy
mt	Maltese
mn	Mongolian
na	Nauru
nv	Navajo; Navaho
nr	Ndebele, South; South Ndebele
nd	Ndebele, North; North Ndebele
ng	Ndonga
ne	Nepali		✓
nn	Norwegian Nynorsk; Nynorsk, Norwegian
nb	Bokmål, Norwegian; Norwegian Bokmål
no	Norwegian	✓	✓
ny	Chichewa; Chewa; Nyanja
oc	Occitan (post 1500)
oj	Ojibwa
or	Oriya
om	Oromo
os	Ossetian; Ossetic
pa	Panjabi; Punjabi
pi	Pali
pl	Polish	✓
pt	Portuguese	✓	✓
ps	Pushto; Pashto
qu	Quechua
rm	Romansh
ro	Romanian; Moldavian; Moldovan	✓	✓
rn	Rundi
ru	Russian	✓	✓
sg	Sango
sa	Sanskrit
si	Sinhala; Sinhalese
sk	Slovak	✓
sl	Slovenian	✓	✓
se	Northern Sami
sm	Samoan
sn	Shona
sd	Sindhi
so	Somali	✓
st	Sotho, Southern	✓
es	Spanish; Castilian	✓	✓
sc	Sardinian
sr	Serbian
ss	Swati
su	Sundanese
sw	Swahili	✓
sv	Swedish	✓	✓
ty	Tahitian
ta	Tamil
tt	Tatar
te	Telugu
tg	Tajik		✓
tl	Tagalog	✓
th	Thai	✓
ti	Tigrinya
to	Tonga (Tonga Islands)
tn	Tswana
ts	Tsonga
tk	Turkmen
tr	Turkish	✓	✓
tw	Twi
ug	Uighur; Uyghur
uk	Ukrainian	✓
ur	Urdu	✓
uz	Uzbek
ve	Venda
vi	Vietnamese	✓
vo	Volapük
wa	Walloon
wo	Wolof
xh	Xhosa
yi	Yiddish
yo	Yoruba	✓
za	Zhuang; Chuang
zu	Zulu	✓

Constructed Language Availability

We also support some constructed (fictional/fantasy) languages! Expand the table below to see a comprehensive description. ChatGPT was used to generate these lists quickly, so they are incomplete and approximate. Help welcome! To use these languages, add the constructed feature.

Language Coverage Table

ISO 639-3 Code	Language
qya	Quenya
sjn	Sindarin
tlh	Klingon
mis (dot is used here)	Dothraki
mis (dov is used here)	Dovahzul
mis (nav is used here)	Navi
mis (val is used here)	High Valyrian

The following prompt was used with the Mar 14, 2023 version of ChatGPT:

Please give me one list of 20 stop words for each of the following languages: Sindarin, Quenya, DOthraki, Na'vi, 
Dovahzul, Klingon, and High Valyrian. I'd like the lists to be formatted as follows:
Sindarin
1. [word goes here]
2. [word goes here]
...
20. [word goes here]
Quenya
1. [word goes here]
...

And so on