Re: [R] Dealing with special characters at end of line in file
Many thanks. I'd misread the doc re fixed, and misunderstood the number of
escapes. Sigh.
JN
On 2018-12-15 10:45 a.m., Bert Gunter wrote:
> ... or used the fixed = TRUE argument.
>
>> z <-"In Alvarez Cabral street by no. 105.\\000"
>
>> sub("\\000","", z, fixed = TRUE)
> [1] "In Alvarez Cabral street by no. 105."
>
>
> Bert Gunter
>
> "The trouble with having an open mind is that people keep coming along and
> sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Sat, Dec 15, 2018 at 7:32 AM J C Nash > wrote:
>
> I am trying to fix up some image files (jpg) that have comments in them.
> Unfortunately, many have had extra special characters encoded.
>
> rdjpgcom, called from an R script, returns a comment e.g.,
>
> "In Alvarez Cabral street by no. 105.\\000"
>
> I want to get rid of "\\000", but sub seems
> to be giving trouble.
>
> > sub("\\000", "", ctxt)
> [1] "In Alvarez Cabral street by no. 105.\\0"
>
> Anyone know how to resolve this?
>
> JN
>
> __
> R-help@r-project.org mailing list -- To
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> and provide commented, minimal, self-contained, reproducible code.
>
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Re: [R] Dealing with special characters at end of line in file
... or used the fixed = TRUE argument.
> z <-"In Alvarez Cabral street by no. 105.\\000"
> sub("\\000","", z, fixed = TRUE)
[1] "In Alvarez Cabral street by no. 105."
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Sat, Dec 15, 2018 at 7:32 AM J C Nash wrote:
> I am trying to fix up some image files (jpg) that have comments in them.
> Unfortunately, many have had extra special characters encoded.
>
> rdjpgcom, called from an R script, returns a comment e.g.,
>
> "In Alvarez Cabral street by no. 105.\\000"
>
> I want to get rid of "\\000", but sub seems
> to be giving trouble.
>
> > sub("\\000", "", ctxt)
> [1] "In Alvarez Cabral street by no. 105.\\0"
>
> Anyone know how to resolve this?
>
> JN
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>
[[alternative HTML version deleted]]
__
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Re: [R] Dealing with special characters at end of line in file
Each of the backslashes need to be escaped with a backslash:
> ctxt <- "In Alvarez Cabral street by no. 105.\\000"
> sub("000", "", ctxt)
[1] "In Alvarez Cabral street by no. 105."
---
David L. Carlson
Department of Anthropology
Texas A&M University
-Original Message-
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of J C Nash
Sent: Saturday, December 15, 2018 9:32 AM
To: r-help
Subject: [R] Dealing with special characters at end of line in file
I am trying to fix up some image files (jpg) that have comments in them.
Unfortunately, many have had extra special characters encoded.
rdjpgcom, called from an R script, returns a comment e.g.,
"In Alvarez Cabral street by no. 105.\\000"
I want to get rid of "\\000", but sub seems
to be giving trouble.
> sub("\\000", "", ctxt)
[1] "In Alvarez Cabral street by no. 105.\\0"
Anyone know how to resolve this?
JN
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
[R] Dealing with special characters at end of line in file
I am trying to fix up some image files (jpg) that have comments in them.
Unfortunately, many have had extra special characters encoded.
rdjpgcom, called from an R script, returns a comment e.g.,
"In Alvarez Cabral street by no. 105.\\000"
I want to get rid of "\\000", but sub seems
to be giving trouble.
> sub("\\000", "", ctxt)
[1] "In Alvarez Cabral street by no. 105.\\0"
Anyone know how to resolve this?
JN
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
