The old apropos started with:
if (!is.character(what))
what <- as.character(substitute(what))
The new one has:
if (character.only)
stopifnot(is.character(what))
else what <- as.character(substitute(what))
i.e., the check for is.character(what) is missing. This has the effect
that 'what' can no longer be a character string generated by a
function call unless 'character.only = TRUE'. I don't think this was
intended; the change makes previously valid use invalid and I can't
think of a situation where it is useful.
-Deepayan
> apropos(paste("^", "lm", sep = ""))
[1] "paste"
There were 12 warnings (use warnings() to see them)
> warnings()
Warning messages:
1: the condition has length > 1 and only the first element will be
used in: if (is.na(pattern)) { ...
2: the condition has length > 1 and only the first element will be
used in: if (is.na(pattern)) { ...
3: the condition has length > 1 and only the first element will be
used in: if (is.na(pattern)) { ...
...
> sessionInfo()
R version 2.5.0 Under development (unstable) (2006-12-21 r40280)
powerpc-unknown-linux-gnu
locale:
LC_CTYPE=bn_IN.UTF-8;[etc etc]
attached base packages:
[1] "stats" "graphics" "grDevices" "utils" "datasets" "methods"
[7] "base"
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