Displaying 20 results from an estimated 7000 matches similar to: "Problem with print() and backslashes."
2008 Jul 02
1
Data editor duplicates pairs of backslashes (PR#11897)
Full_Name: Magnus Torfason
Version: 2.7.0
OS: Windows Vista
Submission from: (NULL) (128.59.140.167)
Each time a string is edited in the data editor (on Windows at least), any pairs
of backslashes (an escaped backslash) are duplicated on each edit of the string.
Note that one must actually double click the value for the bug to show up.
Behavior/Replication:
> # Create data frame
>
2008 May 09
4
Gnome-terminal's backslashes look like Ws with a horizontal line through -- how to get a backslash?
Hello!
I've just started trying gnome-terminal (instead of xterm) because of
its "tabbing" facility. However, I note that with it backslashes appear
something like a W with a horizontal line through it. Any known way to
get a backslash to appear as a backslash?
To see what I mean, use gnome-terminal with
echo '\'
in bash, ksh, etc.
Regards,
Chip Campbell
2012 Mar 07
1
gsub: replacing double backslashes with single backslash
Hello everybody,
this might be a trivial question, but I have been unable to find this using
Google. I am trying to replace double backslashes with single backslashes using
gsub. There seems to be some unexpected behaviour with regards to the
replacement string "\\". The following example uses the string C:\\ which should
be converted to C:\ .
> gsub("\\\\",
2009 Apr 03
2
Removing backslashes from data
I am trying to check for backslashes in data, then remove them when I
find them, but am having a difficult time figuring out the best way to
do it. I know the backslash is the escape character in R, and I
should be able to use 'gsub' to accomplish this, but I all I seem to
be getting are errors. For example:
If entry is:
"Hello\World"
I want:
"HelloWorld"
2006 Apr 24
3
gsub + backslashes
Dear developeRs,
I thought that backslashes can be escaped in the usual way (and I think I
did this before) but I can't see why
R> gsub("\\", "x", "\alpha")
Error in gsub(pattern, replacement, x, ignore.case, extended, fixed,
useBytes) :
invalid regular expression '\'
gives an error. Or am I just blind?
Best,
Torsten
R> version
2006 Jan 04
1
AMP: Losing backslash characters in config files
I've just started using AMP and found that I have a problem with escaped characters in config files.
In particular, I have a custom config item that needs a semicolon in...
SetVar(_ALERT_INFO=info=auto-answer;delay=1)
To get the part of the line after the ; to be accepted by Asterisk as a non-comment it needs to be escaped with a backslash, but I have found that I need to put two
2009 Jun 26
1
should Sys.glob() cope with a UNC windows path beginning with backslashes?
I find that Sys.glob() doesn't like UNC paths where the initial slashes are backslashes. The help page for Sys.glob() doesn't specificly mention UNC paths, but does say: "File paths in Windows are interpreted with separator \ or /." Is the failure to treat a path beginning with a double-backslash as a UNC network drive path the intended behavior?
E.g., on a Windows system
2009 Aug 11
1
Awkward escaping with five backslashes within \code{ } in new parse_Rd
Hi R-devels,
I noticed that you are working quite actively on the new Rd-parser
and have made it the default renderer in R-2.10.0dev. So I would
like to come back on an issue I have already raised on this list
last November
("Two minor escaping issues using \preformatted{....} in Rd format")
My setting has slightly changed as \preformatted, AFAICS is not
supported within \describe
2004 Mar 04
1
where is the pdb_mysql.so
i download samba3.02 source tar package from samba.org , do the below
steps on my freebsd5.2
#./configure --with-mysql-prefix=/usr/local/mysql
#....
#make
#....
#make install
#.....
after install, i add a user:
#pdbedit -a billy
then use the simple smb.conf
[global]
security=user
[tmp]
path=/tmp
guest ok=yes
everything is ok, i can access this samba server using windows client.
2009 Feb 06
3
Sweave and backslashes
Hello Everyone,
I am an avid Sweave user and I am trying to pretty print floating point
numbers for latex output. For example in my document, I would like:
4.2\cdot 10^-{8}
Instead of:
4.2e-08
The Hmisc package has a nice function for doing this- but Hmisc has a ton of
dependencies and has proved very unportable to the various machines I work
on. So, I set out to write my own function that
2024 Apr 11
3
Regexp pattern but fixed replacement?
I noticed this issue in stringr::str_replace, but it also affects sub()
in base R.
If the pattern in a call to one of these needs to be a regular
expression, then backslashes in the replacement text are treated specially.
For example,
gsub("a|b", "\\", "abcdef")
gives "def", not "\\\\def" as I wanted. To get the latter, I need to
escape
2011 Aug 11
2
UNC windows path beginning with backslashes: normalizePath bug??
Hi,
Back in June I posted the message below, but had no replies. I've made a
little progress since then so this is to update anyone interested (!) and to
ask for comments.
Brief problem statement:
Under Windows, some parts of R don't handle UNC paths beginning with
backslashes. Specifically
a) Sys.glob() fails to find some files breaking (e.g.) Rcmdr plugins
2001 Nov 01
3
Lost backslashes in parse()
I'm comparing R-1.3.0 on Solaris 2.6 to R-1.3.1 on WindowsNT. The following
5-line script returns TRUE on Unix but FALSE on NT:
fnam <- tempfile()
file.create(fnam)
txt <- paste("file.exists(\"", fnam, "\")", sep="")
expr <- parse(text=txt)
eval(expr)
The issue seems to be that backslashes get lost in the parsing. A workaround
is to change
2003 Aug 12
3
grep and gsub on backslash and quotes
The following code works, to gsub single quotes to double quotes:
line <- gsub("'", '"', line)
(that's a single quote within doubles then a double within singles if
your
viewer's font is not good).
But The R Language Manual tells me that
Quotes and other special characters within strings
are specified using escape sequences:
\' single quote
\"
2011 Aug 30
2
url prep function (backslash issue)
Greeting R
Community,
I am a
windows user so this problem may be specific to windows. I often want to source
files from within R
such as:
C:\Users\Rinker\Desktop\Research & Law\Data\School Data 09-10. To source
this file I need to go
through the
path and replace all the backslashes (\) with forward slashes (/). I usually do
this in MS Word
using the
replace option, however, I'd like
2008 Aug 04
3
backslash in character string?
Dear list,
After searching many old posts, I can't find the solution to a simple problem.
can someone tell me how to create a character string with multiple backslashes, as in:
file_dir <- c("C:\files\data\")
I need to create this string and then paste it to many files names for batch processing in another software program. R won't accept the backslash and removes
2013 Feb 05
2
R Regular Expressions - Metacharacters
I thought that I can use metacharacters such as \w to match word characters
with one backslash. But for some reason, I need to include two backslashes.
> grepl(pattern='\w', x="what")
Error: '\w' is an unrecognized escape in character string starting "\w"
> grepl(pattern='\\w', x="what")
[1] TRUE
I can't find the reason for this
2004 Nov 29
4
escaping backslash in a string
How can I get a single backslash in a character string?
My goal is to escape dots in a string that will be used as a regular
expression. I thought I could do it this way:
gsub(".", "\\.", x)
Unfortunately, "\\" does not represent a literal backslash as I
expected, but rather a pair of backslashes:
> "\\."
[1] "\\."
> "\\"
[1]
2010 Jun 16
2
Backslash in paste() function
Hi,
I'm trying to build a vector of latex commands. However, I need the command strings to begin with a backslash "\". I have:
test <- c('foo','bar')
and I need to rebuild the array, encapsulating the text items with latex stuff, like this:
paste("\parbox[b]{3cm}{", test, "}", fill=TRUE)
Actually, cat() prints the string fine if one uses
2020 May 15
3
edit() doubles backslashes when keep.source=TRUE
Is it just my installation or does edit() (or fix(), etc.) in R-4.0.0
double all the backslashes when options(keep.source=TRUE)? E.g.,
> options(keep.source=TRUE)
> f <- function(x) { cat("\t", x, "\n", sep="") }
> edit(f) # exit the editor without making any changes
The editor (vi or notepad) shows doubled backslashes
function(x) {