1 files changed, 120 insertions, 0 deletions
diff --git a/sphinx/search/da.py b/sphinx/search/da.py
new file mode 100644
index 0000000..9b5b9f5
--- /dev/null
+++ b/sphinx/search/da.py
@@ -0,0 +1,120 @@
+"""Danish search language: includes the JS Danish stemmer."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Dict
+
+import snowballstemmer
+
+from sphinx.search import SearchLanguage, parse_stop_word
+
+danish_stopwords = parse_stop_word('''
+| source: http://snowball.tartarus.org/algorithms/danish/stop.txt
+og           | and
+i            | in
+jeg          | I
+det          | that (dem. pronoun)/it (pers. pronoun)
+at           | that (in front of a sentence)/to (with infinitive)
+en           | a/an
+den          | it (pers. pronoun)/that (dem. pronoun)
+til          | to/at/for/until/against/by/of/into, more
+er           | present tense of "to be"
+som          | who, as
+på           | on/upon/in/on/at/to/after/of/with/for, on
+de           | they
+med          | with/by/in, along
+han          | he
+af           | of/by/from/off/for/in/with/on, off
+for          | at/for/to/from/by/of/ago, in front/before, because
+ikke         | not
+der          | who/which, there/those
+var          | past tense of "to be"
+mig          | me/myself
+sig          | oneself/himself/herself/itself/themselves
+men          | but
+et           | a/an/one, one (number), someone/somebody/one
+har          | present tense of "to have"
+om           | round/about/for/in/a, about/around/down, if
+vi           | we
+min          | my
+havde        | past tense of "to have"
+ham          | him
+hun          | she
+nu           | now
+over         | over/above/across/by/beyond/past/on/about, over/past
+da           | then, when/as/since
+fra          | from/off/since, off, since
+du           | you
+ud           | out
+sin          | his/her/its/one's
+dem          | them
+os           | us/ourselves
+op           | up
+man          | you/one
+hans         | his
+hvor         | where
+eller        | or
+hvad         | what
+skal         | must/shall etc.
+selv         | myself/yourself/herself/ourselves etc., even
+her          | here
+alle         | all/everyone/everybody etc.
+vil          | will (verb)
+blev         | past tense of "to stay/to remain/to get/to become"
+kunne        | could
+ind          | in
+når          | when
+være         | present tense of "to be"
+dog          | however/yet/after all
+noget        | something
+ville        | would
+jo           | you know/you see (adv), yes
+deres        | their/theirs
+efter        | after/behind/according to/for/by/from, later/afterwards
+ned          | down
+skulle       | should
+denne        | this
+end          | than
+dette        | this
+mit          | my/mine
+også         | also
+under        | under/beneath/below/during, below/underneath
+have         | have
+dig          | you
+anden        | other
+hende        | her
+mine         | my
+alt          | everything
+meget        | much/very, plenty of
+sit          | his, her, its, one's
+sine         | his, her, its, one's
+vor          | our
+mod          | against
+disse        | these
+hvis         | if
+din          | your/yours
+nogle        | some
+hos          | by/at
+blive        | be/become
+mange        | many
+ad           | by/through
+bliver       | present tense of "to be/to become"
+hendes       | her/hers
+været        | be
+thi          | for (conj)
+jer          | you
+sådan        | such, like this/like that
+''')
+
+
+class SearchDanish(SearchLanguage):
+    lang = 'da'
+    language_name = 'Danish'
+    js_stemmer_rawcode = 'danish-stemmer.js'
+    stopwords = danish_stopwords
+
+    def init(self, options: dict) -> None:
+        self.stemmer = snowballstemmer.stemmer('danish')
+
+    def stem(self, word: str) -> str:
+        return self.stemmer.stemWord(word.lower())