stringi (version 0.2-5)

stri_extract_last: Extract Last Pattern Match

Description

A convenience function. Calls either stri_extract_last_regex, stri_extract_last_coll, or stri_extract_last_charclass, depending on the argument used.

Usage

stri_extract_last(str, ..., regex, coll, charclass)

Arguments

str

character vector of strings to search in

...

additional arguments passed to the underlying functions

regex

character vector; regular expressions

coll

character vector; canonically equivalent patterns

charclass

character vector; identifiers of character classes

Value

• Returns a character vector.

Details

Unless you are very lazy, please call the underlying functions directly for better performance.

See Also

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_coll, stri_extract_first_coll, stri_extract_first_coll, stri_extract_last_coll, stri_extract_last_coll; 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_words; stri_extract; stringi-search

Examples

s <- 'Lorem ipsum dolor sit amet, consectetur adipisicing elit.'

if (stri_install_check(silent=TRUE))
stri_extract_last('XaaaaX', regex=c('\\p{Ll}', '\\p{Ll}+', '\\p{Ll}{2,3}', '\\p{Ll}{2,3}?'))

if (stri_install_check(silent=TRUE))
stri_extract_last('Bartolini', coll=letters[1:3])

if (stri_install_check(silent=TRUE))
stri_extract_last(s, charclass='\\p{Zs}')

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