| readNEWS {utils} | R Documentation |
Read R's NEWS file or a similarly formatted one. This is an experimental feature, new in R 2.4.0 and may change in several ways.
readNEWS(file = file.path(R.home(), "NEWS"), trace = FALSE,
chop = c("first", "1", "par1", "keepAll"))
file |
the name of the file which the data are to be read from.
Alternatively, file can be a connection, which
will be opened if necessary, and can also be a complete URL. For
more details, see the file argument of read.table. |
trace |
logical indicating if the recursive reading should be traced, i.e., print what it is doing. |
chop |
a character string specifying how the news entries should
be “chopped”; chop = "keepAll" saves the full
entries. |
An (S3) object of class "newsTree"; effectively
a list of lists which is a tree of NEWS entries.
Note that this is still experimental and may change in the future.
NEWStr <- readNEWS(trace = TRUE)# chop = "first" ( = "first non-empty")
## keep the full NEWS entry text i.e. "no chopping":
NEWStrA <- readNEWS(chop = "keepAll")
object.size(NEWStr)
object.size(NEWStrA) ## (no chopping) ==> about double the size
str(NEWStr, max = 3)
str(NEWStr[[c("2.3", "2.3.1")]], max=2, vec.len=1)
NEWStr [[c("2.3", "2.3.1", "NEW FEATURES")]]
NEWStrA[[c("2.4", "2.4.0", "NEW FEATURES")]]