Pattern Matching for Any or All Multiple Matches

This function returns a boolean vector of the same length as `x`, each element of which is the result of applying the `type` of matches to the corresponding element of `x`, using regular expressions.

Usage

grepm(pattern, x, type = "all", ...)

Arguments

pattern

character string containing a regular expression (or character string for fixed = TRUE) to be matched in the given character vector. Coerced by as.character to a character string if possible. If a character vector of length 2 or more is supplied, the first element is used with a warning. Missing values are allowed except for regexpr, gregexpr and regexec.

x

Character vector. Text where matches are sought, or an object which can be coerced by as.character to a character vector. Long vectors are supported.

type

Character. Type of match. Choose one of: any, all

...

Additional arguments to pass to grepl

Value

Boolean of same length as x

See also

Other Tools: autoline(), bind_files(), bring_api(), chr2num(), db_download(), db_upload(), export_plot(), export_results(), files_functions(), font_exists(), formatColoured(), formatHTML(), get_credentials(), glued(), h2o_selectmodel(), haveInternet(), image_metadata(), importxlsx(), ip_data(), json2vector(), list_cats(), listfiles(), mail_send(), markdown2df(), move_files(), msplit(), myip(), quiet(), read.file(), statusbar(), tic(), try_require(), updateLares(), warnifnot(), what_size()

Examples

x <- c(123, 876, 18761)
patterns <- c(1, 2)
grepm(patterns, x, type = "any")
#> [1]  TRUE FALSE  TRUE
grepm(patterns, x, type = "all")
#> [1]  TRUE FALSE FALSE