grepl_letters | R Documentation |
Match pattern of letters considering blanks within each element of a character vector, allowing counted characters between and around each letter. Used as an auxiliary function for the Scrabble family of functions.
grepl_letters(x, pattern, blank = "_")
x |
Character vector |
pattern |
Character. Character string containing a semi-regular expression which uses the following logic: "a_b" means any character that contains "a" followed by something followed by "b", anywhere in the string. |
blank |
Character. String to use between letters. |
Boolean check for each value on x
.
x <- c("aaaa", "bbbb", "baba", "aabb", "a", "ab")
grepl_letters(x, "ab")
grepl_letters(x, "_ab")
grepl_letters(x, "a_a")
grepl_letters(x, "c")
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