[Rd] String Length Limit (PR#1040)
Prof Brian Ripley
Mon, 6 Aug 2001 17:08:17 +0100 (BST)
On Fri, 3 Aug 2001 email@example.com wrote:
> Full_Name: Antonio Possolo
> Version: 1.3.0
> OS: Linux
> Submission from: (NULL) (126.96.36.199)
> If one attempts to read a character string from a file using scan,
> and the string comprises more than 8190 characters, then the string
> is truncated to this length, and no warning is issued.
> I've observed this both in the Linux and Win implementations of R 1.3.0.
> S-PLUS (v. 6.0 rel. 1 for Sun SPARC) does not suffer from this behavior.
Although readLines is normally to be preferred (in R and S-PLUS 6: it's a
lot faster for a start), we've fixed this so that scan() in
R 1.3.1 will give a warning
R 1.4.0 will allow unlimited lines (unlimited by R, that is).
As ever, previews are in r-patched and r-devel (tar bundles/rysnc)
The 1.4.0 version needed quite a lot of re-writing of code, too much for a
Brian D. Ripley, firstname.lastname@example.org
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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