stri_detect_fixed: Detect a Fixed Pattern Match

In stringi: THE string processing package for R

Description

This function checks if there is at least one occurrence of a fixed pattern in a string.

Usage

stri_detect_fixed(str, pattern, opts_collator = list())

Arguments

str	character vector
pattern	character vector
opts_collator	a named list as generated with stri_opts_collator with Collator options, or NA for fast but locale-unaware byte comparison

Details

Vectorized over str and pattern.

See stringi-search-fixed for more details on locale-sensitive text searching in stringi.

If pattern is empty, then the result is NA and a warning is generated.

Pass opts_collator equal to NA for much faster, but locale unaware, (exact) byte comparisons. For natural language text this may be not what you really want.

Value

Returns a logical vector.

See Also

Other locale_sensitive: stri_cmp, stri_compare; stri_count_fixed; stri_enc_detect2; stri_locate_all_fixed, stri_locate_all_fixed,, stri_locate_first_fixed, stri_locate_first_fixed,, stri_locate_last_fixed, stri_locate_last_fixed; stri_opts_collator; stri_order, stri_sort; stri_replace_all_fixed, stri_replace_all_fixed, stri_replace_first_fixed, stri_replace_first_fixed, stri_replace_last_fixed, stri_replace_last_fixed; stri_split_fixed, stri_split_fixed; stri_trans_tolower, stri_trans_totitle, stri_trans_toupper; stringi-locale; stringi-search-fixed

Other search_detect: stri_detect_charclass; stri_detect_regex; stri_detect; stringi-search

Other search_fixed: stri_count_fixed; stri_extract_all_fixed, stri_extract_all_fixed,, stri_extract_first_fixed, stri_extract_first_fixed,, stri_extract_last_fixed, stri_extract_last_fixed; stri_locate_all_fixed, stri_locate_all_fixed,, stri_locate_first_fixed, stri_locate_first_fixed,, stri_locate_last_fixed, stri_locate_last_fixed; stri_opts_collator; stri_replace_all_fixed, stri_replace_all_fixed, stri_replace_first_fixed, stri_replace_first_fixed, stri_replace_last_fixed, stri_replace_last_fixed; stri_split_fixed, stri_split_fixed; stringi-search-fixed; stringi-search

Examples

## Not run: 
stri_detect_fixed(c("stringi w R","REXAMINE","123"), c('i','R','0'), opts_collator=NA)
stri_detect_fixed(c("stringi w R","REXAMINE","123"), 'R', opts_collator=NA)

## End(Not run)

Example output

[1]  TRUE  TRUE FALSE
[1]  TRUE  TRUE FALSE

stringi documentation built on May 2, 2019, 4:54 p.m.