How to pass some (but not all) further arguments with “…”

Question

One of my in-progress functions calls grep() with value = TRUE hard-coded. I\'d like to pass all of the further arguments except <

Answer 1

You can combine Curry with do.call:

require(functional)
f <- function(pattern, x, ...)
{
  dots <- list(...)
  dots <- dots[!grepl('value', names(dots))]
  do.call(Curry(grep, pattern=pattern, x=x, value=TRUE), dots)
}

Curry provides the known arguments, and dots supplies everything other than "value" in ....