Richard M. Heiberger wrote: > Duncan, > > I would like an option for all comments and blanks to be echoed. The > reason is that I am designing a mechanism for connecting ESS to Rgui > using source(). It works for me now, but is not smooth enough to post > until I do a little bit more work on it. Therefore I want an option > for the R Console to display all the lines in my source() code. When > the seven lines below are sourced, only lines 1,2,4,5,6 are echoed. > Lines 3 and 7 are not echoed. This means that well-commented user > source code will not have complete comments in the output transcript > in the Console. > source() is pure R code, so if you want a function that behaves differently, you can do it fairly easily yourself. It's basically just a function to parse some source and then evaluate it one expression at a time. No need for all the bells and whistles it has if you are in complete control of the input and don't want to offer options on the output. A version that does what you need to do is probably just 10 or 20 lines.
Duncan Murdoch > ## comment 1 > 123 > > ## comment 4 > > 456 > ## comment 7 > > > What I would also like, but I believe would be much harder for you > to provide, is a way to get individual lines sent from ESS into the > same place that lines that are manually typed go. The reason is that > multi-line commands, such as > > 2+ > 3 > > cannot currently be sent one line at a time (using ESS C-c C-n) to > Rgui. They can be sent to any other R or S-Plus process one line at a > time. I would like the same capability for the Rgui Console. The > plan that I am developing now can send multiple lines over, either by > highlighting them and using C-c C-r, or by surrounding them with blank > lines and using C-c C-c. > > > Rich > > -----Original Message----- > From: Duncan Murdoch [mailto:[EMAIL PROTECTED] > Sent: Sunday, March 09, 2008 10:52 PM > To: Richard M. Heiberger > Cc: r-help@r-project.org > Subject: Re: [R] source(echo=TRUE) bug (was: source() behavior I don't > understand) > > On 09/03/2008 10:40 PM, Richard M. Heiberger wrote: > >> Thanks Duncan, >> >> While there, can you give a new optional argument that >> will permit the echo of blanks and comments? >> > > Comments are already echoed, leading blank lines are not (but blanks in > comments are). For example: > > > temp.ttt <- "ttt <- 1\n\n# comment\n\nttt" > > cat(file="c:/temp/temp.R", temp.ttt) > > source("c:/temp/temp.R", echo=TRUE) > > > ttt <- 1 > > > # comment > > > > ttt > [1] 1 > > (I ran this in the patched version, but I believe the behaviour would be > the same in the release as well.) > > I forget exactly why I chose to suppress leading blanks, but the > workaround of commenting the first of them is so easy, I don't think > it's worth the trouble to add an extra option. > > Duncan > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
