noquote: Class for 'no quote' Printing of Character Strings
In robertzk/monadicbase: The R Base Package

Description Usage Arguments Details Author(s) See Also Examples

Print character strings without quotes.

noquote(obj)

## S3 method for class 'noquote'
print(x, ...)

## S3 method for class 'noquote'
c(..., recursive = FALSE)

`obj`	any R object, typically a vector of `character` strings.
`x`	an object of class `"noquote"`.
`...`	further options passed to next methods, such as `print`.
`recursive`	for compatibility with the generic `c` function.

noquote returns its argument as an object of class "noquote". There is a method for c() and subscript method ("[.noquote") which ensures that the class is not lost by subsetting. The print method (print.noquote) prints character strings without quotes ("\dots").

These functions exist both as utilities and as an example of using (S3) class and object orientation.

Martin Maechler maechler@stat.math.ethz.ch

methods, class, print.

letters
nql <- noquote(letters)
nql
nql[1:4] <- "oh"
nql[1:12]

cmp.logical <- function(log.v)
{
  ## Purpose: compact printing of logicals
  log.v <- as.logical(log.v)
  noquote(if(length(log.v) == 0)"()" else c(".","|")[1 + log.v])
}
cmp.logical(stats::runif(20) > 0.8)