WISH:
I'd like make a plea for utils:::findMatches() to be exported such
that anyone can do:
.DollarNames.MyClass <- function(x, pattern="") {
utils:::findMatches(pattern, names(x))
}
The utils:::findMatches() is agile to the "fuzzy" options, cf.
.DollarNames. It also doesn't erase what's been typed if there is not
match (see below).
ALTERNATIVE:
I'm aware of that utils:::.DollarNames.default almost do the same
thing, but, unfortunately, that does not work for all data type, e.g.
environment-based objects. An alternative to utils:::findMatches() is
to use:
.DollarNames.MyClass <- function(x, pattern="") {
grep(pattern, names(x), value=TRUE)
}
but that has the additional downside to return an empty string "" if
there's no match, which in turn erases whatever the user typed before
hitting TAB.
Thanks
Henrik
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