stri_detect_coll(str, pattern, opts_collator = NULL)stri_opts_collator; NULL
for default settingsstr and pattern.See stringi-search-coll for more details on
locale-sensitive text searching in 
If pattern is empty, then the result is NA
and a warning is generated.
%!==%,
  %!=%, %<=%< a="">=%<>,
  %<%< a="">%<>, %===%,
  %==%, %>=%,
  %>%, %stri!==%,
  %stri!=%, %stri<=%< a="">=%<>,
  %stri<%< a="">%<>, %stri===%,
  %stri==%, %stri>=%,
  %stri>%; stri_cmp,
  stri_cmp_eq, stri_cmp_equiv,
  stri_cmp_ge, stri_cmp_gt,
  stri_cmp_le, stri_cmp_lt,
  stri_cmp_neq,
  stri_cmp_nequiv,
  stri_compare;
  stri_count_coll;
  stri_duplicated,
  stri_duplicated_any;
  stri_enc_detect2;
  stri_extract_all_coll,
  stri_extract_first_coll,
  stri_extract_first_coll,
  stri_extract_last_coll,
  stri_extract_last_coll;
  stri_extract_words;
  stri_locate_all_coll,
  stri_locate_first_coll,
  stri_locate_first_coll,
  stri_locate_last_coll,
  stri_locate_last_coll;
  stri_locate_boundaries;
  stri_locate_words;
  stri_opts_collator;
  stri_order, stri_sort;
  stri_replace_all_coll,
  stri_replace_first_coll,
  stri_replace_first_coll,
  stri_replace_last_coll,
  stri_replace_last_coll;
  stri_split_boundaries;
  stri_split_coll;
  stri_trans_tolower,
  stri_trans_totitle,
  stri_trans_toupper;
  stri_unique; stri_wrap;
  stringi-locale;
  stringi-search-collOther search_coll: stri_count_coll;
  stri_extract_all_coll,
  stri_extract_first_coll,
  stri_extract_first_coll,
  stri_extract_last_coll,
  stri_extract_last_coll;
  stri_locate_all_coll,
  stri_locate_first_coll,
  stri_locate_first_coll,
  stri_locate_last_coll,
  stri_locate_last_coll;
  stri_replace_all_coll,
  stri_replace_first_coll,
  stri_replace_first_coll,
  stri_replace_last_coll,
  stri_replace_last_coll;
  stri_split_coll;
  stringi-search-coll;
  stringi-search
Other search_detect: stri_detect_charclass;
  stri_detect_fixed;
  stri_detect_regex;
  stri_detect; stringi-search