displayCode {R.utils} | R Documentation |
Displays the contents of a text file with line numbers and more.
## Default S3 method: displayCode(con=NULL, code=NULL, numerate=TRUE, lines=-1, wrap=79, highlight=NULL, pager=getOption("pager"), ...)
con |
A connection or a character string filename.
If code is specified, this argument is ignored. |
code |
A character vector of code lines to be displayed. |
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. |
pager |
If "none" , code is not displayed in a pager, but
only returned. For other options, see file.show (). |
... |
Additional arguments passed to file.show (),
which is used to display the formatted code. |
Returns (invisibly) the formatted code as a character
string.
Henrik Bengtsson (http://www.braju.com/R/)
file.show
().
file <- system.file("DESCRIPTION", package="R.utils") cat("Displaying: ", file, ":\n", sep="") displayCode(file) file <- system.file("CONTENTS", package="R.utils") cat("Displaying: ", file, ":\n", sep="") displayCode(file, numerate=FALSE, lines=100:110, wrap=65) file <- system.file("CONTENTS", package="R.utils") cat("Displaying: ", file, ":\n", sep="") displayCode(file, lines=100:110, wrap=65, highlight=c(101,104:108))