Lower case and '\E' to end case conversion.
'\L' to convert the rest of the replacement to upper or Perl = TRUE only, it can also contain '\U' or
'\9' to parenthesized subexpressions of pattern. Forįixed = FALSE this can include backreferences '\1' to Regexec(pattern, text, ignore.case = FALSE, perl = FALSE,įixed = FALSE, useBytes = FALSE) ArgumentsĪ replacement for matched pattern in sub and Gregexpr(pattern, text, ignore.case = FALSE, perl = FALSE, Regexpr(pattern, text, ignore.case = FALSE, perl = FALSE, Gsub(pattern, replacement, x, ignore.case = FALSE, perl = FALSE, Sub(pattern, replacement, x, ignore.case = FALSE, perl = FALSE, Grepl(pattern, x, ignore.case = FALSE, perl = FALSE, Usage grep(pattern, x, ignore.case = FALSE, perl = FALSE, value = FALSE,įixed = FALSE, useBytes = FALSE, invert = FALSE) Sub and gsub perform replacement of the first and all Regexec search for matches to argument pattern withinĮach element of a character vector: they differ in the format of and Grep: Pattern Matching and Replacement Description
