noquote                 package:base                 R Documentation

Class for ``no quote'' Printing of Strings

Description:

     These functions exist both as utilities and as an example of using
     `class' and object orientation.

Usage:

     noquote(obj)
     print.noquote(x, ...)
     obj[j]

Arguments:

  obj, x: any R object; typically a vector of `character' strings.

     ...: further options for `print'.

Value:

     `noquote' returns its argument as an object of class `"noquote"'. 
     The function `"[.noquote"' ensures that the class is not lost by
     subsetting.

     For (default) printing, `print.noquote' will be used which prints
     characters without quotes (`"..."').

Author(s):

     Martin Maechler maechler@stat.math.ethz.ch

See Also:

     `methods',`class',`print'.

Examples:

     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(runif(20) > 0.8)

