From ripley@stats.ox.ac.uk  Wed Oct 10 17:47:59 2001
From: ripley@stats.ox.ac.uk (Prof Brian D Ripley)
Date: Wed, 10 Oct 2001 17:47:59 +0100 (BST)
Subject: [Rd] Whitespace matters in else construct (PR#1125)
In-Reply-To: <200110101618.SAA01758@pubhealth.ku.dk>
Message-ID: <Pine.GSO.4.31.0110101743080.24536-100000@auk.stats>

This is a documented feature: more accurately, newlines matter.  An R
statement is terminated if it is syntactically complete at the end of the
line.

See the reference manual section 10.2.5 for an explicit statement.


On Wed, 10 Oct 2001 jens.lund@nordea.com wrote:

> Full_Name: Jens Lund
> Version: 1.3.1
> OS: Windows
> Submission from: (NULL) (194.239.194.210)
>
>
> Whitespace matters in else constructions; a newline does not seem to be allowed
> in front of else:
>
> # Valid input examples
> if (F) {
>   print(T)
> } else print(F)
>
> if (T) print(T) else print(F)
>
> if (F) {print(T)
> } else print(F)
>
> # Invalid input examples
> if (F) {
>   print(T)
> }
> else print(F)
>
> if (F)
>   print(T)
> else print(F)
>
> > version
>          _
> platform i386-pc-mingw32
> arch     x86
> os       Win32
> system   x86, Win32
> status
> major    1
> minor    3.1
> year     2001
> month    08
> day      31
> language R
>
> Best regards, Jens
>
>
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-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
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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[Rd] Whitespace matters in else construct (PR#1125)
Prof Brian D Ripley