VComments

The VComments class

Package: R.utils Class VComments Object ~~| ~~+--SmartComments ~~~~~~~| ~~~~~~~+--VComments Directly known subclasses: LComments public static class VComments extends SmartComments The VComments class.

Usage

VComments(letter="V", verboseName="verbose", ...)

Details

The 'v' in VComments stands for 'verbose', because of its relationship to the Verbose class. Here is a list of VComments and the Rcode that replaces each of them by the compiler: Constructors

• \#V0\#

bold

• Controls
• Enters and exits
• Simple output
• Output messages

cr

• • \#V=\#
  {[] - Sets the name of the object. Default is 'verbose'.} #V^#{ - setThreshold(, )} #V?#{ - if (isVisible()) { }} #V@#{ - setDefaultLevel(, )} #Vm#{ - (, )}
• • \#V+\#
  {[] - enter(, )} #V-#{[] - exit(, )} #V!#{[] - pushState() on.exit(popState()) If , enter(, )}
• • \#Vn\#
  { - newline()} #Vr#{ - ruler()} #Vt#{ - timestamp()} #Vw#{[
• • \#Vc\#
  {[] - cat(, )} #Ve#{ - eval(, )} #Vh#{ - header(, )} #Vp#{

Aliases

• VComments

Examples

filename <- system.file("data-ex/exampleVComments.R", package="R.utils")
lines <- readLines(filename)

cat("Code before preprocessing:
")
displayCode(lines)

lines <- VComments$compile(lines)

cat("Code after preprocessing:
")
displayCode(lines)