Full_Name: Volkmar Klatt
Version: 2.6.2
OS: linux
Submission from: (NULL) (84.147.0.178)
Hello,
the documentation article
?Quotes
from package:base could be improved by discussing
the meaning of "\0" escape sequence.
In R (currently used: R-2.6.2), a "\0" in a string will
silently terminate that string, just as it would in C code.
There is no warning about an unknown escape sequence.
(cf. R FAQ 7.37)
# example:
s <- "abc\0def"
s
# --> [1] "abc"
nchar(s)
# --> [1] 3
The "\0" seems to be so fundamental, that it cannot be handled by
any R function, am I right?
E.g., the function escapeBS (package:Hmisc) does not correctly
handle "\0" sequences, that is in contrast to what is stated in its
article ?escapeBS :
"'escapeBS' will escape any backslash '\backslash' in a string.
# example:
library(Hmisc)
escapeBS("abc\0def")
# -->[1] "abc"
Bye,
Volkmar Klatt
volkmar.klatt AT bnv-bamberg.de
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