[Rd] Help please: please test timestamping of command history

[Duncan Murdoch]

On 3/25/2006 11:30 AM, Martin Maechler wrote:
> Hi Duncan,
> 
> I think all ESS users don't use history() because ESS calls R  
> with "--no-readline" (Unix)  
> or   "--ess"  (Windows & Cygwin)
> 
> I'd wish that in that case, and probably also in BATCH mode,
> timestamp() should write the time stamp prefixed by "##" to the
> "R console" (to R's stdout); when people are using ESS properly, then
> rather than wanting a history, they save the R's buffer ("*R*") as
> "R transcript" (file typically ending with ".Rt" or ".Rout") 
> and it makes much sense to have a time stampe entry in that file when
> others would want an entry in the history.
> 
> BTW, after applying your patch, for me, compilation ends
> prematurely with
> 
> gcc -I. -I../../src/include -I../../../R/src/include -I/usr/X11R6/include -I/usr/local/include -DHAVE_CONFIG_H   -g -O3 -pedantic -Wall -Wno-comment -DDEBUG_q -Wcast-align -c ../../../R/src/unix/stubs.c -o stubs.o
> ../../../R/src/unix/stubs.c: In function `do_addhistory':
> ../../../R/src/unix/stubs.c:46: warning: implicit declaration of function `ptr_R_addhistory'
> ../../../R/src/unix/stubs.c:46: error: `rho' undeclared (first use in this function)
> ../../../R/src/unix/stubs.c:46: error: (Each undeclared identifier is reported only once
> ../../../R/src/unix/stubs.c:46: error: for each function it appears in.)
> ../../../R/src/unix/stubs.c:46: warning: return makes pointer from integer without a cast
> make[3]: *** [stubs.o] Error 1

Okay, this compile error is fixed.  I've put a new version of the patch in

http://www.stats.uwo.ca/faculty/murdoch/software/timestamp.patch

I haven't addressed the ESS request above other than changing the 
message prefix to start with ##; I don't know how to detect ESS from 
within an R session.

Duncan Murdoch