as.function.formula     Make a one-line function from a formula.
fn                      Transform formula arguments to functions.
gsubfn                  Pattern Matching and Replacement
gsubfn-package          gsubfn
match.funfn             Generic extended version of R match.fun
read.pattern            Read file or text string using a regular
                        expression to separate fields.
strapply                Apply a function over a string or strings.
