similar to: possible bug in utils::removeSource - NULL argument is silently dropped

Dear R-devel, In a package of mine, I use removeSource on expression objects in order to make expressions that are semantically the same serialize to the same byte sequences: https://github.com/cran/depcache/blob/854d68a/R/fixup.R#L8-L34 Today I learned that expressions containing function definitions also contain the source references for the functions, not as an attribute, but as a separate

On 30/03/2023 10:32 a.m., Ivan Krylov wrote: > Dear R-devel, > > In a package of mine, I use removeSource on expression objects in order > to make expressions that are semantically the same serialize to the > same byte sequences: > https://github.com/cran/depcache/blob/854d68a/R/fixup.R#L8-L34 > > Today I learned that expressions containing function definitions also >

If you can afford a dependency on rlang, `rlang::zap_srcref()` deals with this. It's recursive over expression vectors, calls (including calls to `function` and their hidden srcref arg), and function objects. It's implemented in C for efficiency as we found it to be a bottleneck in some applications (IIRC caching). I'd be happy to upstream this in base if R core is interested. Best,

Hi, The result of as,character() on 'srcref' objects doesn't have the closing ')' in some cases involving 'quote': > e4 <- quote({2+2}) > class(attr(e4, "wholeSrcref")) [1] "srcref" > as.character(attr(e4, "wholeSrcref")) [1] "e4 <- quote({2+2}" As a result printing the object also lacks it and gives an

https://bugzilla.samba.org/show_bug.cgi?id=13991 Bug ID: 13991 Summary: rsync --delete --one-file-system skips deletes after crossing filesystems on destination. Product: rsync Version: 3.1.3 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P5

Hi, Suppose I have x = parse(text = " {y=50+50+50#'asfasf' } ") now x is an expression with some src attributes. > x expression({y=50+50+50#'asfasf' }) attr(,"srcfile") <text> attr(,"wholeSrcref") {y=50+50+50#'asfasf' } My question is, how can I get my string back (the string passed to parse() as the text argument)? >

wholeSrcref attribute is documented in ?parse to be the source reference corresponding to the already parsed text. The implementation in the parser matches the documentation - the code stops at the last byte/character of the expression, that is, on the closing brace - which is the "already parsed text". I think this works as documented (also source() uses the current implementation

I am by no means an expert along these lines, but should the following small program lock out (for 60 seconds) elements of the shadow suit such as chsh ?? ------------------------ #include <stdlib.h> #include <shadow.h> void main() { if(lckpwdf()) { printf("Failed to get password locks\n"); exit(0); }

Greetings All, I am looking to write a parametrized Rscript that will accept a variable name(that also is the name of the flat file), transform the data into a data frame and preform various modeling on the structure and save the output and plot of the model. In this example i am using a rpart decision tree. The only problem i am having is integrating the parameter into the internal object name

https://bugzilla.samba.org/show_bug.cgi?id=10495 Summary: "skipping directory foo" (does not transfer directories by default) Product: rsync Version: 3.1.0 Platform: All OS/Version: All Status: NEW Severity: major Priority: P5 Component: core AssignedTo: wayned at

I've tried to install midnight commander on centos3.1 final. No luck in installing it via yum install. When I download src.rpm from centos2 updates SRPMS I couldn't rebuild it. RPM --rebuild mc*.src.rpm didn't work (no rebuild option). What can I do then ? Best Regards Cooba

Hiya, i have a squid-2.5.4 transparent proxy working in http accelerator mode (i.e. web servers are behind the squid, and all www records point to the squid IP) and i want to implement some sort of bandwidth management so, for example, any given hosted website/server won''t eat more than let''s say 1Mbit of upstream bandwidth, i have recompiled squid using Patrick Mchardy

Dear R devs, I was digging into a package issue today when I realized R serialize function not always generate the same results on equivalent objects when users choose to run differently. For example, the following code serialize(with(new.env(), { function(){} }), NULL, TRUE) generates different results when I copy-paste into console vs when I use ctrl+shift+enter to source the file in RStudio.

On 1/16/24 20:16, Dipterix Wang wrote: > Could you recommend any packages/functions that compute hash such that > the source references and sexpinfo_struct are ignored? Basically a > version of `serialize` that convert R objects to raw without storing > the ancillary source reference and sexpinfo. > I think most people would think of `digest` but that package uses >

Back to my favourite R subject: batch mode. Some months ago, I pointed out how the default of saving .RData automatically in batch can often lead to completely erroneous results when using data.frames. Basically the idea of .RData is to save the environment to start where one left off. This will generally be quite different than where one started the session. The idea of a batch file is to redo a

Could you recommend any packages/functions that compute hash such that the source references and sexpinfo_struct are ignored? Basically a version of `serialize` that convert R objects to raw without storing the ancillary source reference and sexpinfo. I think most people would think of `digest` but that package uses `serialize` (see discussion

I've rolled up R-2.13.0.tar.gz a short while ago. This is a development release which contains a number of new features. Also, a number of mostly minor bugs have been fixed (but notice that serious build issues were fixed in 2.12.2). See the full list of changes below. You can get it from http://cran.r-project.org/src/base/R-2/R-2.13.0.tar.gz or wait for it to be mirrored at a CRAN site

I've rolled up R-2.13.0.tar.gz a short while ago. This is a development release which contains a number of new features. Also, a number of mostly minor bugs have been fixed (but notice that serious build issues were fixed in 2.12.2). See the full list of changes below. You can get it from http://cran.r-project.org/src/base/R-2/R-2.13.0.tar.gz or wait for it to be mirrored at a CRAN site

Hello, It seems that the parsing information attached to expressions parsed by the parse() function when keep.source=TRUE is not provided to the eval() function. Please consider this code: path <- tempfile() code <- '(function() print( str( sys.calls() ) ))()' writeLines(code, path) sys.source(path, envir=globalenv(), keep.source=TRUE) > OUTPUT: Dotted pair list of 4 $ :

Greetings All! After much trial and error, and an exhaustive search of the archives, I'm writing to solicit help with a problem. I want to dynamically modify variable names and values as function arguments inside a loop. I have a canned function from a package that takes ellipsis (...) arguments of the form varb=vval where varb is a name and vval is either numeric or character. I want to