stringi (version 0.2-3)

stri_extract_all_coll: Extract Canonically Equivalent Pattern Matches

Description

These functions extract substrings of str that match a given pattern.

Usage

stri_extract_all_coll(str, pattern, opts_collator = NULL)
stri_extract_first_coll(str, pattern, opts_collator = NULL)
stri_extract_last_coll(str, pattern, opts_collator = NULL)

Arguments

str

character vector

pattern

character vector

opts_collator

a named list with ICU Collator's settings as generated with stri_opts_collator; NULL for default settings

Value

• For stri_extract_all_coll, a list of max(length(str), length(pattern)) character vectors is returned. Otherwise, you get a character vector. NA if not found.

Details

Vectorized over str and pattern.

There are locale-sensitive operations. See stringi-search-coll for more details on locale-sensitive text searching in stringi.

See Also

Other locale_sensitive: %!==%, %!=%, %<=%< 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_detect_coll; stri_duplicated, stri_duplicated_any; stri_enc_detect2; 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-coll

Other search_coll: stri_count_coll; stri_detect_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_extract: stri_extract_all_charclass, stri_extract_first_charclass, stri_extract_first_charclass, stri_extract_last_charclass, stri_extract_last_charclass; stri_extract_all_regex, stri_extract_first_regex, stri_extract_first_regex, stri_extract_last_regex, stri_extract_last_regex; stri_extract_all; stri_extract_first; stri_extract_last; stri_extract_words; stri_extract; stringi-search

Examples

stri_extract_all_coll(c('AaaaaaaA', 'AAAA'), 'a')
stri_extract_first_coll(c('Yy\u00FD', 'AAA'), 'y',
   stri_opts_collator(strength=2, locale="sk_SK"))
stri_extract_last_coll(c('Yy\u00FD', 'AAA'), 'y',
   stri_opts_collator(strength=1, locale="sk_SK"))