Hi,
ben@gale ~ $ R
R version 3.5.1 (2018-07-02) -- "Feather Spray"
<snip>
> options(help_type = "html")
> ?plot
starting httpd help server ... done
That brings up visible help in the default browser (Safari or Firefox depending
upon which is set to be the default browser).
> On Oct 18, 2018, at 6:04 PM, Marc Schwartz <marc_schwa...@me.com> wrote:
>
> Hi Ben,
>
> Ok, thanks for that clarification. That fundamentally alters my view of the
> issue.
>
> For verification, can you start R in a terminal and then type:
>
> options(help_type = "html")
>
> after which, then try help for some function (e.g. ?plot) and see what
> happens.
>
> Thanks,
>
> Marc
>
>
>> On Oct 18, 2018, at 5:45 PM, Ben Tupper <btup...@bigelow.org> wrote:
>>
>> You are correct that it only comes up in the text pager when I invoke R from
>> the terminal (with or without --vanilla).
>>
>> RStudio help works as expected in the sense that help content is rendered
>> within the RStudio panes on the "Help" tab - just as you surmised.
>>
>> Cheers (really!),
>> Ben
>>
>>> On Oct 18, 2018, at 5:32 PM, Marc Schwartz <marc_schwa...@me.com> wrote:
>>>
>>> Hi Ben,
>>>
>>> A question, because as I go back and re-read both this thread and the prior
>>> one you posted on this issue, I have been presuming that when you run R
>>> from the terminal, you can successfully get help to open in an external
>>> browser.
>>>
>>> However, given my re-read and what you now post below, I am wondering if,
>>> in fact, when running R in the terminal, you simply get the help displaying
>>> in the text pager.
>>>
>>> I don't use RStudio, so not sure if help comes up in their own internal
>>> browser, or if it comes up in an external browser. Albeit, looking at their
>>> website, it appears to be an internal browser that stays within the IDE, in
>>> contrast to R.app opening the internal browser in an external window.
>>>
>>> Can you confirm that when you run R from the terminal, does help appear
>>> within the terminal window in the pager, or does it come up in whatever
>>> external browser you are using, which I am guessing is Firefox based upon
>>> the output below.
>>>
>>> Thanks,
>>>
>>> Marc
>>>
>>>
>>>
>>>> On Oct 18, 2018, at 5:09 PM, Ben Tupper <btup...@bigelow.org> wrote:
>>>>
>>>> Hi,
>>>>
>>>> In a fresh R.app session
>>>>
>>>>> debug(get("aqua.browser", envir = as.environment("tools:RGUI")))
>>>>> help('help')
>>>> starting httpd help server ... done
>>>> debugging in: browser(if (encodeIfNeeded) URLencode(url) else url)
>>>> debug: {
>>>> x <- gsub("http://127.0.0.1";, "http://localhost";, x, fixed = TRUE)
>>>> .Call("aqua.custom.print", "help-files", x)
>>>> invisible(x)
>>>> }
>>>> Browse[2]> n
>>>> debug: x <- gsub("http://127.0.0.1";, "http://localhost";, x, fixed = TRUE)
>>>> Browse[2]> n
>>>> debug: .Call("aqua.custom.print", "help-files", x)
>>>> Browse[2]> browseURL(x)
>>>>
>>>>
>>>> opens the external browser
>>>> http://localhost:28450/library/utils/html/help.html<http://localhost:28450/library/utils/html/help.html>
>>>>
>>>> but the browser says...
>>>>
>>>> "Hmm. We’re having trouble finding that site.
>>>> We can’t connect to the server at localhost.
>>>> If that address is correct, here are three other things you can try:
>>>>
>>>> Try again later.
>>>> Check your network connection.
>>>> If you are connected but behind a firewall, check that Firefox has
>>>> permission to access the Web."
>>>>
>>>>
>>>> And...
>>>>
>>>> Browse[2]> c
>>>> exiting from: browser(if (encodeIfNeeded) URLencode(url) else url)
>>>>
>>>> ... opens the blank help window.
>>>>
>>>>
>>>> Finally, following up on Marc's suggestion that I invoke R without
>>>> --vanilla...
>>>>
>>>> ben@gale ~ $ diff R-app-options R-options
>>>> 81c81
>>>> < <bytecode: 0x7fd0b1fcbbc0>
>>>> ---
>>>>> <bytecode: 0x7fb46a177890>
>>>> 108,110d107
>>>> < $help_type
>>>> < [1] "html"
>>>> <
>>>> 184,185c181,182
>>>> < CRAN
>>>> < "http://cran.utstat.utoronto.ca";
>>>> ---
>>>>> CRAN
>>>>> "@CRAN@"
>>>> 247c244
>>>> < [1] 168
>>>> ---
>>>>> [1] 80
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>> On Oct 18, 2018, at 4:49 PM, Duncan Murdoch <murdoch.dun...@gmail.com>
>>>>> wrote:
>>>>>
>>>>> On 18/10/2018 8:50 AM, Ben Tupper wrote:
>>>>>> I also have no firewall running on the platform. I do have
>>>>>> anti-virus/malware and have turned it off. The help window still
>>>>>> renders with a blank page and there is no text captured with a
>>>>>> copy-paste.
>>>>>> I tried debug() as Duncan suggested and get the following in a fresh
>>>>>> R.app session...
>>>>>
>>>>> Okay, that wasn't as informative as I had hoped. Could you try the
>>>>> following:
>>>>>
>>>>> debug(get("aqua.browser", envir = as.environment("tools:RGUI")))
>>>>>
>>>>> then ask for help on something. You should stop in the debugger seeing
>>>>> something like
>>>>>
>>>>> debugging in: browser(if (encodeIfNeeded) URLencode(url) else url)
>>>>> debug: {
>>>>> x <- gsub("http://127.0.0.1 <http://127.0.0.1/>", "http://localhost
>>>>> <http://localhost/>", x, fixed = TRUE)
>>>>> .Call("aqua.custom.print", "help-files", x)
>>>>> invisible(x)
>>>>> }
>>>>>
>>>>> At the prompt, type "n" (without the quotes, followed by return) twice,
>>>>> until you are at the .Call line. Then type
>>>>>
>>>>> browseURL(x)
>>>>>
>>>>> This should open your external browser. It will either show a blank
>>>>> page, or the help page: that will indicate whether the problem is in the
>>>>> internal browser or in the server.
>>>>>
>>>>> Then go back to R.app, and type "c". This should open the same help page
>>>>> in the internal browser. It might show a blank page, or the regular help
>>>>> page: either one would tell us something.
>>>>>
>>>>> Duncan Murdoch
>>>>>
>>>
>>> <snip>
>>
>> Ben Tupper
>> Bigelow Laboratory for Ocean Sciences
>> 60 Bigelow Drive, P.O. Box 380
>> East Boothbay, Maine 04544
>> http://www.bigelow.org
>>
>> Ecological Forecasting: https://eco.bigelow.org/
>>
>>
>>
>>
>>
>
Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org
Ecological Forecasting: https://eco.bigelow.org/
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