7 calls to search_simplify() in Drupal 8

SearchQuery::parseSearchExpression in core/modules/search/src/SearchQuery.php

Parses the search query into SQL conditions.

SearchSimplifyTest::testSearchSimplifyPunctuation in core/modules/search/tests/src/Kernel/SearchSimplifyTest.php

Tests that search_simplify() does the right thing with punctuation.

SearchSimplifyTest::testSearchSimplifyUnicode in core/modules/search/tests/src/Kernel/SearchSimplifyTest.php

Tests that all Unicode characters simplify correctly.

SearchTokenizerTest::testNoTokenizer in core/modules/search/tests/src/Kernel/SearchTokenizerTest.php

Verifies that strings of non-CJK characters are not tokenized.

SearchTokenizerTest::testTokenizer in core/modules/search/tests/src/Kernel/SearchTokenizerTest.php

Verifies that strings of CJK characters are tokenized.

search_index_split in core/modules/search/search.module

Simplifies and splits a string into words for indexing.

_search_find_match_with_simplify in core/modules/search/search.module

Finds an appropriate keyword in text.