utils_regmatches_if_not_empty: Conditionally amend character string vector.
In podcleaner: Legacy Scottish Post Office Directories Cleaner

Description Usage Arguments Value Examples

Searches for non-empty string in provided character string vector. If found searches for alternative pattern in an alternative character string and returns any match or an empty string if none.

utils_regmatches_if_not_empty(
  string_filter,
  string_search,
  regex_search,
  ignore_case_search
)

`string_filter`	A Character string vector.
`string_search`	Alternative character string to search into for the pattern provided in `regex_search` below
`regex_search`	Alternative pattern provided as a character string regex to look for in the alternative character string provided in `string_search` above.
`ignore_case_search`	Boolean specifying whether case should be ignored (`TRUE`) or not (`FALSE`) in search for `regex_search` in `string_search`.

A list of character string vectors.

## Not run: 
  utils_regmatches_if_not_empty(
    c("glasgow-entrepreneurs", "", "aberdeen-entrepreneurs"),
    "edinburgh-entrepreneurs" , "^edinburgh", TRUE
  )

## End(Not run)