[Rd] Assistance much appreciated

[Duncan Murdoch]

On 17/12/2015 9:06 AM, Michael Felt wrote:
> More experimenting with calling commands:
>   > tools:::foobar()
> Error: Line starting 'Package: tools ...' is malformed!
>   > tools::foobar()
> Error: Line starting 'Package: tools ...' is malformed!

These both do a loadNamespace("tools").

>   > Tools:::foobar()
> Error in loadNamespace(name) : there is no package called 'Tools'
>   > loadNamespace(tools)
> Error in loadNamespace(tools) : object 'tools' not found

Those are expected, and unrelated.

>   > loadNamespace("tools")
> Error: Line starting 'Package: tools ...' is malformed!

This shouldn't happen.  In a previous post you listed a long list of 
warnings about packages not being loaded; that's likely a serious 
problem, but I don't know if it is the cause or a consequence of this 
one.  Something is seriously wrong with the startup.  You could try 
debugging setup_Rmainloop in <src/main/main.c>.  to see if any warnings 
are being generated there.  There shouldn't be any.

Duncan Murdoch

>   >
>
>
> On 17-Dec-15 18:02, Michael Felt wrote:
>> I have been struggling with this error message - and think I finally
>> understand it's context.
>>
>> Start
>>
>> Line by line debugging shows me the function works:
>>
>> ...
>>> saveRDS(val, mapfile)
>>> val
>> $variables
>> $variables$IANA_HTTP_status_code_db
>> [1]    0 1256
>>
>> $variables$IANA_URI_scheme_db
>> [1] 1256 3458
>>
>> $variables$table_of_HTTP_status_codes
>> [1] 4714  830
>>
>>
>> $references
>> named list()
>>
>> $compressed
>> [1] TRUE
>>
>>> mapfile
>> [1] "./library/tools/R/sysdata.rdx"
>>> [1] + Stopped (SIGTSTP)         R_DEFAULT_PACKAGES=NULL LC_ALL=C
>> ./bin/R --vanilla
>> root at x065:[/data/prj/cran/64/R-3.2.3]ls -l ./library/tools/R/sysdata.rdx
>> -rw-r--r--   1 root     33              193 Dec 17 16:49
>> ./library/tools/R/sysdata.rdx
>> root at x065:[/data/prj/cran/64/R-3.2.3]cat ./library/tools/R/sysdata.rdx
>> àb```b`fbf" SH0#h^°<°¼@ðAlÞ&_(
>>                                ¨Ü(RËÈÀÂÀ        ¤YósS
>> C7ÈPG3@Áøj/D                                        °aA
>> OG?ÇxøâÄÒâøäüÔø$¨¼X>4È3¾89#5IFª$1)'5>?
>> ì00F¹³,±(dA1T«(5-µ(5/![PZ\2í$Ú<root at x065:[/data/prj/cran/64/R-3.2.3]
>> root at x065:[/data/prj/cran/64/R-3.2.3]
>> root at x065:[/data/prj/cran/64/R-3.2.3]gzip -dc
>> ./library/tools/R/sysdata.rdx
>> X
>> j>      names   IANA_HTTP_status_code_db IANA_URI_scheme_db
>> table_of_HTTP_status_codesþÿþ
>> ÿ               variables
>> references
>> compressedþroot at x065:[/data/prj/cran/64/R-3.2.3]fg
>>   R_DEFAULT_PACKAGES=NULL LC_ALL=C ./bin/R --vanilla
>>
>>>
>>> e
>> <environment: 110dbf620>
>>> destDir
>> [1] "./library/tools/R"
>>> compress
>> [1] TRUE
>>> debug(tools:::makeLazyLoadDB(e, file.path(destDir, "sysdata"),
>> compress = compress))
>> Error: Line starting 'Package: tools ...' is malformed!
>>> tools:::makeLazyLoadDB(e, file.path(destDir, "sysdata"), compress =
>> compress)
>> Error: Line starting 'Package: tools ...' is malformed!
>>>
>>
>> So, at the end - my gut-feeling is that the error messages is not
>> about the arguments, but us related to the "tools:::foo".
>>
>> Where should I look next? It goes a bit beyond me to know where in R
>> "tools:::foo" is being parsed.
>> Guessing here - but might be related to the switch from 32-bit to
>> 64-bit AND that PowerPC is BigEndian rather than LittleEndian? Could
>> also be absolutely wrong, way off base, etc. --> shoot me down!
>>
>> Thanks,
>> Michael
>
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