changeKeywordstyles
changeKeywordstyles
sets up / updates a table of keywordstyles to different packages
- Keywords
- utilities
Usage
changeKeywordstyles(pkgs, keywordstyles)
Arguments
- pkgs
- character; the packages for which keywordstyle information is to be changed
- keywordstyles
- character or missing; the corresponding keywordstyle format
strings; if missing the corresponding option
Keywordstyle
is read off by usinggetSweaveListingOption("Keywordstyle")
. Internally, it is being cast to the same length aspkgs
byrep(keywordstyles, length.out = length(pkgs))
.
Details
Before changing the keywordstyles, we first check whether the corresponding
package is registered at all ---by looking up the
(non-exported) vector object .alreadyDefinedPkgs
, which is hidden in the
namespace of this package.
For changing the keywordstyle, we write out a
\lstdefinelanguage{R}% {keywordstyle=[directive to standard out, where] ,% }
is a string containing any sequence of TeX formatting commands like
"\\bfseries\\footnotesize"
. Note that backslashes have to be escaped.
and
is just num+2
where num
is the index of the package in the .alreadyDefinedPkgs
vector.For use in an .Rnw
file, the call to lstsetlanguage
should be
wrapped into a corresponding Sweave chunk in the form
<< /chunkname/, results=tex, echo=FALSE>>= changeKeywordstyles( ..... ) @for example
<>= changeKeywordstyles(pkgs = "distr", keywordstyles = "\\bfseries\\color{blue}") @
Value
invisible()
See Also
Examples
require(MASS)
lstsetLanguage(pkgs = c("MASS","stats"),
keywordstyles = paste("\\bfseries\\color{",c("blue","red"),"}",
sep="", collapse=""))
changeKeywordstyles(pkgs = c("distr","distrEx"),
keywordstyles = paste("\\bfseries\\color{",c("green","blue"),"}",
collapse="", sep = ""))
Community examples
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