Learn R Programming
R.utils (version 0.5.5)

displayCode: Displays the contents of a text file with line numbers and more

Description

Displays the contents of a text file with line numbers and more.

Usage

## S3 method for class 'default}(con, numerate=TRUE, lines=-1, wrap=79, highlight=NULL, ...)':
displayCodeundefined

con{A connection, a character string filename, or a character
  vector (of length two or more) of source code.}
  numerate{If TRUE, line are numbers, otherwise not.}
  lines{If a single numeric, the maximum number of lines to show.
    If -1, all lines are shown. If a vector of numeric, the lines
    numbers to display.}
  wrap{The (output) column numeric where to wrap lines.}
  highlight{A vector of line number to be highlighted.}
  ...{Not used.}

Returns nothing.

file <- system.file("DESCRIPTION", package="R.utils")
cat("-----------------------------------------------------------------
")
cat(file, ":
", sep="")
cat("-----------------------------------------------------------------
")
displayCode(file)
cat("
")

file <- system.file("CONTENTS", package="R.utils")
cat("-----------------------------------------------------------------
")
cat(file, ":
", sep="")
cat("-----------------------------------------------------------------
")
displayCode(file, numerate=FALSE, lines=100:110, wrap=65)
cat("
")

file <- system.file("CONTENTS", package="R.utils")
cat("-----------------------------------------------------------------
")
cat(file, ":
", sep="")
cat("-----------------------------------------------------------------
")
displayCode(file, lines=100:110, wrap=65, highlight=c(101,104:108))

[object Object],[object Object]



file
IO

Arguments