similar to: Regexp update in R-devel

A couple of weeks back there was some discussion about documenting the regular expressions as used in R. Several years ago the problem was that this was OS-dependent, and to plug that problem we incorporated regexp code from a version of GNU grep, later updated to grep-2.4.2 in R 1.2.0. I have been looking at documenting what grep(perl=TRUE) does, and we have a similar problem in that the

Hello, I noticed (due to a recent post by Martin Honnen to clp) that Element.Class uses wrong regexps for its operations. E.g., Element.Class.has() will find "classA" in "classA-foobar" I also changed the interface of .has() to the more general one used in .has_any() --- util.js.old 2005-08-21 19:18:40.000000000 +0200 +++ util.js 2005-08-21 19:31:42.000000000 +0200 @@

Processing commands for control at bugs.debian.org: > reassign 325874 logcheck-database Bug#325874: nagios-common: logcheck regexp issue Bug reassigned from package `nagios-common' to `logcheck-database'. > tags 325874 + patch Bug#325874: nagios-common: logcheck regexp issue Tags were: patch Tags added: patch > thanks Stopping processing here. Please contact me if you need

I notice in recent commits that a number of these have been added: /\[(\d+)\]/.freeze I thought that Regexps are immutable. Furthermore, Regexp literals don''t generate a new object each time they are encountered: irb(main):001:0> 3.times { puts /\d+/.object_id } -605707646 -605707646 -605707646 => 3 irb(main):002:0> Unlike strings: irb(main):002:0> 3.times { puts

Hello! this is a short one: in a gotoif-statement i would like to match a variable to a number, where the number could have digits from 2-6. asterisk only seems to be capable to match such a digit-range when used in the extension, but not in a regexp, at least the following query doesn't work: exten => _X.,1,GotoIf($[${EXTEN} : 234[2-6]]?jump:) obviously asterisk has a problem with

Hello, I have a stupid regexp question. I have a large data frame of strings. I would like to convert all occurences of : "W.m^{-2}" to "W/m2" I make the following test : gsub(glob2rx("W.m^{-2}"), "W/m2", "W.m^{-2}") but it does not seem to work. I don't know how to do it otherwise as I could never learn how to deal with the special

Hi, I''m looking through the Merb::Routing code and I''ve found a regexp that I can''t figure out how it works. Merb::Router::SECTION_REGEXP #=> /(?::([a-z*_]+))/ It takes a route definition string, like "/products/:model/:id" and extracts the "model" string on the first pass, and later the "id" string. Can anyone shed some light on

Folks, This question is somewhat related to a previous posting of mine. I just can't seem to create a generic solution. Here is a function that I found searching around the internet: splitIt <- function(x, n) {split(x, sort(rank(x) %% n))} I use it like so: > splitIt(1:12, 2) $`0` [1] 1 2 3 4 5 6 $`1` [1] 7 8 9 10 11 12 Or > splitIt(1:12, 4) $`0` [1] 1 2 3 $`1` [1] 4 5 6

On Friday 28 November 2014 14:44:30 Richard W.M. Jones wrote: > [NOTE: this is not the complete patch. Once ACKed, I will make the > same mechanical change to all the other places in the library that use > this pattern.] > --- > src/guestfs-internal.h | 24 ++++++++ > src/inspect-fs-unix.c | 164 +++++++++++-------------------------------------- > 2 files changed, 59

From:r-devel-admin@stat.math.ethz.ch on 02/22/2003 12:00 PM CET Sent by: r-devel-admin@stat.math.ethz.ch Please respond to r-devel@stat.math.ethz.ch To: r-devel@stat.math.ethz.ch cc: (bcc: Asheka Rahman/arahma1/LSU) Subject: R-devel digest, Vol 1 #101 - 10 msgs Send R-devel mailing list submissions to r-devel@stat.math.ethz.ch To subscribe or unsubscribe via the World Wide Web,

> Date: Wed, 26 Nov 2003 13:52:44 +0100 > From: Martin Maechler <maechler@stat.math.ethz.ch> > To: <Kurt.Hornik@wu-wien.ac.at> > Cc: <r-devel@stat.math.ethz.ch> > Subject: Re: [Rd] Question about Unix file paths > > > > >>>>> " Kurt" == Kurt Hornik <Kurt.Hornik@wu-wien.ac.at> > >>>>> on Wed, 26

R-devel (pre-2.5.0) now has enough facilities to allow packages with non-ASCII character strings to work reasonably well in locales where the fonts use support the characters used. For example, names in Western European languages can be used on both Latin-1 (and hence Windows 1252) and UTF-8 systems. It should also be possible to make use of non-ASCII object names. To enable this, two

Hello * i have to rename a lot of variables, and, given that they have regular name constructs, I would like to use regexps. Here's a dump of my head(names(df)) varnames <- c("id.quest", "txt.1.3", "col1.1.3", "col2.1.3", "col3.1.3", "col4.1.3", "col5.1.3", "txt.2.3", "col1.2.3",

On Wed, 14 Aug 2002, Henrik Bengtsson wrote: > Sorry, but it was indeed the redirection of the standard output in > Cygwin/bash that cause the first problem, not R (I should stop doing > troubleshooting at 1:00 AM). So please forget about the problems reported in > R_CMD_check.out. However, it would still be nice if you still update R CMD > check to do join with "\n".

Hi, Am I missing something in using regexps in R? Below, 'egrep' means invokation of the command from the shell prompt. # I have > as.character(block.dist.vals) [1] "1e+06" "2e+06" "5e+06" # that I wish to convert to: "1" "2" "5" # OK (R and egrep) > sub( "e.+06", "", as.character(block.dist.vals) )

Environment: CentOS 4.2 (RHES4 clone) Ruby 1.8.4 Rails 1.0 I am having a small difficulty with case sensitive matching in some ruby code: f_nam_re = Regexp.new(f_nam_re_s,"x") produces these test results: The passed regexp: ^QPCCCMR[[:digit:]]$ The regexp used is: /^QPCCCMR[[:digit:]]$/i $= is false qpcccmr1 matches QPCCCMR1 matches QPCCMMR1 does not match qpCCCMR1 matches QPCCCMRC

Railsters: ActiveRecord''s validation system puts other database systems to shame. However, the newbies might not know how to write a regexp that excludes a match, instead of tests for it. Understand - I''m just asking this question to help them. I have been using Regexps since ''grep'' on Xenix! But the newbies here might not know how to do this:

Dear R Users, I am trying to users gsub to remove multiple cases of square brackets and their different contents in a character string. A sample of such a string is shown below. However, I am having great difficulty understanding regexp syntax. Any help is greatly appreciated. Ally "tree STATE_286000 [&lnP=-12708.453945423369] = [&R]

This is answered in the rw-FAQ, Q2.12! It is not a problem with R, but with your installation of Windows. *PLEASE* do not report FAQs as bugs: it a complete waste of the developers' time. On Thu, 27 Dec 2001 hb@maths.lth.se wrote: > Full_Name: Henrik Bengtsson > Version: v1.4.0 (2001-12-19) > OS: WinMe > Submission from: (NULL) (217.208.14.137) > > > When

We now have the integrated 32/64-bit installer for R-devel available from http://cran.r-project.org/bin/windows/base/rdevel.html , and binary builds of almost all the CRAN packages from CRAN or CRAN extras (and BioC 2.7 has a fairly complete 32/64-bit repository). There is also a win-builder service available for R-devel. These are built with different toolchains from R 2.11.x, using gcc