[R] "R CMD Rd2txt" generate "_^H" for in all section titles

[Duncan Murdoch]

On 13/11/2014, 10:28 PM, Jeff Newmiller wrote:
>> Which text editor can actually display _^H correct?
> 
> Not aware of any. It is from very old line printer behavior, which most (all?) printers can still support even though few computers are set up to utilize it.

The "less" command in Unix-alikes generally supports it for display.

Duncan Murdoch

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> On November 13, 2014 6:41:05 PM PST, Zheng Da <zhengda1936 at gmail.com> wrote:
>> Thank you. Great help!
>> Given your information, we can generate text files without _^H with
>> the following command:
>> echo "tools::Rd2txt(\"$input_file\", out=\"$output_file\",
>> options=list(underline_titles=FALSE))" | R --no-save
>> It's kind tedious though.
>>
>> I'm just curious. Which text editor can actually display _^H correct?
>> I normally use vim. I also tried gedit. I even tried a web browser
>> (chrome).
>>
>> Da
>>
>> On Thu, Nov 13, 2014 at 8:29 PM, David Winsemius
>> <dwinsemius at comcast.net> wrote:
>>>
>>> On Nov 13, 2014, at 11:51 AM, Zheng Da wrote:
>>>
>>>> Hello,
>>>>
>>>> I'm trying to generate plain text from the .Rd files. I run "R CMD
>>>> Rd2txt xx.Rd -o xx.txt" to get the plain text file. When I open the
>>>> text file, I see "_^H" in front of each character in all section
>>>> titles. I can't figure out where the problem is. If I don't specify
>> -o
>>>> argument, "R CMD Rd2txt" prints on the standard output correctly.
>> What
>>>> should I do to output everything correctly to a file?
>>>
>>> I think your (unstated) editor is displaying backspaces with ^H. The
>> Section Header convention in Rd files is with interspersed underscores
>> so they look like:
>>>
>>> _ D_ e_ s_ c_ r_ i_ p_ t_ i_ o_ n:
>>>
>>> The ^H's are apparently being put in to "erase" or squeeze together
>> the text separated by <underscores> and your editor is not handling it
>> in the manner expected.
>>>
>>>>
>>>> Thanks,
>>>> Da
>>>>
>>>> ______________________________________________
>>>> R-help at 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.
>>>
>>> David Winsemius
>>> Alameda, CA, USA
>>>
>>
>> ______________________________________________
>> R-help at 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.
> 
> ______________________________________________
> R-help at 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.
>