example(.) partly broken (since 0.63.3) --> patch (PR#134)

[maechler@stat.math.ethz.ch]

(I don't have time just now to diagnose & fix..)

In R 0.63.3  [both on Solaris and Linux]

    > example(outer)
    Error: Couldn't find 'outer' example

whereas this worked in 0.63.2.

NON-exhaustive `research' [i.e. small sample out of about 1000]:
 o examples that stopped working (in 0.63.3 and did before)
	
	kronecker, outer, vector, Im

 o Examples working
 
	.Alias, "%in%", lm, glm, lsfit, unix, Re, ... (most?)

It really is the  'AnIndex' file which is broken, 
either because of incorrect syntax in changed  *.Rd files
or    because the AnIndex building scripts are broken or not robust enough..

My "AnIndex" (i.e.  RINSTALL/library/base/help/AnIndex)
has line 482
-----------------------------
glm summaries	glm.summaries
-----------------------------
which then is  scan()ed as 3 character strings instead of 2, and then
everything following is mixed up......

Other (not necessarily all) such bad lines are
-----------------------------
lm summaries	lm.summaries
nrow, ncol	nrow
QR Auxiliaries	qraux
-----------------------------



However, it seems sufficient [for example() at least]
to patch its source by using  scan("..../AnIndex" ..) with sep = "\t" :

--- src/library/base/R/source.R.~1~	Wed Dec  2 11:39:22 1998
+++ src/library/base/R/source.R	Tue Mar  9 10:27:38 1999
@@ -122,7 +122,7 @@
             AnIndexF <- system.file(paste("help","AnIndex",sep=directory.sep),
                                     pkg, lib)
             if(AnIndexF != "") {
-                AnIndex <- scan(AnIndexF,what=c("c","c"),quiet=TRUE)
+                AnIndex <- scan(AnIndexF,what=c("c","c"),sep="\t",quiet=TRUE)
                 i <- match(topic,AnIndex[seq(1,length(AnIndex),2)],-1)
                 if(i != -1)	 
                     file <- system.file(paste("R-ex",directory.sep,AnIndex[2*i],

	
Martin Maechler <maechler@stat.math.ethz.ch>	http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum SOL G1;	Sonneggstr.33
ETH (Federal Inst. Technology)	8092 Zurich	SWITZERLAND
phone: x-41-1-632-3408		fax: ...-1086			<><

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