strmatch: Extract matched group(s) from a string.
In gschofl/gsmisc: A collection conveniance functions

Extract matched group(s) from a string.

1 2	strmatch(pattern, str, capture = TRUE, perl = TRUE, global = TRUE, ignore.case = FALSE)

`pattern`	character string containing a regular expression
`str`	character vector where matches are sought
`capture`	if `TRUE` capture groups are returned in addition to the complete match
`perl`	if `TRUE` perl-compatible regexps are used.
`global`	if `TRUE` `gregexpr` is used for matching otherwise `regexpr`.
`ignore.case`	case sensitive matching