[Rd] ?if (PR#3179)
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Tue Jun 3 20:10:28 MEST 2003
Prof Brian Ripley <ripley at stats.ox.ac.uk> writes:
> What makes you think that is a bug?
> ?"if" and help("if") work
> `An Introduction to R' says
> For a feature specified by special characters, the argument must be
> enclosed in double or single quotes, making it a ``character string'':
To be precise, we should probably insert "or a reserved word"
in that sentence.
The point is that parsing occurs prior to the logic that runs help on
the (deparsed) argument, so it's technically no different from "-if"
or "!for" which are also syntactically invalid. The question mark is
just another operator at this stage.
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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