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"""Dutch search language: includes the JS porter stemmer."""
from typing import Dict
import snowballstemmer
from sphinx.search import SearchLanguage, parse_stop_word
dutch_stopwords = parse_stop_word('''
| source: http://snowball.tartarus.org/algorithms/dutch/stop.txt
de | the
en | and
van | of, from
ik | I, the ego
te | (1) chez, at etc, (2) to, (3) too
dat | that, which
die | that, those, who, which
in | in, inside
een | a, an, one
hij | he
het | the, it
niet | not, nothing, naught
zijn | (1) to be, being, (2) his, one's, its
is | is
was | (1) was, past tense of all persons sing. of 'zijn' (to be) (2) wax, (3) the washing, (4) rise of river
op | on, upon, at, in, up, used up
aan | on, upon, to (as dative)
met | with, by
als | like, such as, when
voor | (1) before, in front of, (2) furrow
had | had, past tense all persons sing. of 'hebben' (have)
er | there
maar | but, only
om | round, about, for etc
hem | him
dan | then
zou | should/would, past tense all persons sing. of 'zullen'
of | or, whether, if
wat | what, something, anything
mijn | possessive and noun 'mine'
men | people, 'one'
dit | this
zo | so, thus, in this way
door | through by
over | over, across
ze | she, her, they, them
zich | oneself
bij | (1) a bee, (2) by, near, at
ook | also, too
tot | till, until
je | you
mij | me
uit | out of, from
der | Old Dutch form of 'van der' still found in surnames
daar | (1) there, (2) because
haar | (1) her, their, them, (2) hair
naar | (1) unpleasant, unwell etc, (2) towards, (3) as
heb | present first person sing. of 'to have'
hoe | how, why
heeft | present third person sing. of 'to have'
hebben | 'to have' and various parts thereof
deze | this
u | you
want | (1) for, (2) mitten, (3) rigging
nog | yet, still
zal | 'shall', first and third person sing. of verb 'zullen' (will)
me | me
zij | she, they
nu | now
ge | 'thou', still used in Belgium and south Netherlands
geen | none
omdat | because
iets | something, somewhat
worden | to become, grow, get
toch | yet, still
al | all, every, each
waren | (1) 'were' (2) to wander, (3) wares, (3)
veel | much, many
meer | (1) more, (2) lake
doen | to do, to make
toen | then, when
moet | noun 'spot/mote' and present form of 'to must'
ben | (1) am, (2) 'are' in interrogative second person singular of 'to be'
zonder | without
kan | noun 'can' and present form of 'to be able'
hun | their, them
dus | so, consequently
alles | all, everything, anything
onder | under, beneath
ja | yes, of course
eens | once, one day
hier | here
wie | who
werd | imperfect third person sing. of 'become'
altijd | always
doch | yet, but etc
wordt | present third person sing. of 'become'
wezen | (1) to be, (2) 'been' as in 'been fishing', (3) orphans
kunnen | to be able
ons | us/our
zelf | self
tegen | against, towards, at
na | after, near
reeds | already
wil | (1) present tense of 'want', (2) 'will', noun, (3) fender
kon | could; past tense of 'to be able'
niets | nothing
uw | your
iemand | somebody
geweest | been; past participle of 'be'
andere | other
''')
class SearchDutch(SearchLanguage):
lang = 'nl'
language_name = 'Dutch'
js_stemmer_rawcode = 'dutch-stemmer.js'
stopwords = dutch_stopwords
def init(self, options: Dict) -> None:
self.stemmer = snowballstemmer.stemmer('dutch')
def stem(self, word: str) -> str:
return self.stemmer.stemWord(word.lower())
|
