[rkward-tracker] [ rkward-Feature Requests-1186843 ] use Rs new callbacks

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Feature Requests item #1186843, was opened at 2005-04-20 19:49
Message generated for change (Comment added) made by tfry
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Category: None
Group: None
>Status: Closed
Priority: 5
Submitted By: Thomas Friedrichsmeier (tfry)
Assigned to: Thomas Friedrichsmeier (tfry)
Summary: use Rs new callbacks

Initial Comment:
R 2.1.0 seems to provide some new useful 
callbacks for embedding. E.g.: 
 
extern int  (*ptr_R_ShowFiles)(int, char **, char 
**, char *, Rboolean, char *); 
 
in order to call back the embedding application 
when paging needs to be done. See also: 
http://stat.ethz.ch/R-manual/R-devel/doc/manual/R-exts.html#Setting-R-callbacks 
 
Once we all run R 2.1.0 (I don't yet), and think a 
reasonable portion of our userbase does, too, 
we should start using those callbacks. 

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>Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-09-15 10:05

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Done. Although some of those will need some 
polishing. Open separate requests / bug-reports for 
those. 
Files to look at for code details: 
rbackend/rembedinternal.s 
rbackend/rinterface.h 

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Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-09-13 13:17

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Status update: 
 
R_ReadConsole, and R_ShowMessage have been 
implemented. 
 
R_WriteConsole will be very useful in replacing the 
entire sinking-to-file-business, however this is a 
larger project. Also it will only really be useful, when 
R adds something like R_WriteErr. We should 
probably delay this. 
 
R_ResetConsole, R_FlushConsole, and R_Clearerr 
have been overridden to have no effect. We may or 
may not want to reconsider this for R_FlushConsole, 
once we user R_WriteConsole to get at the output. 
 
R_loadhistory, R_savehistory are untouched, and will 
remain untouched, as we keep our own history, and 
do not submit commands the regular way, anyway. 
 
R_busy will probably not be needed. 
 
R_Suicide: Should definitely be implemented. No 
work done so far. 
 
R_Cleanup: Not sure about this one. Delaying. 
 
R_EditFile, R_EditFiles, R_ShowFiles: Work on this 
has started. 
 
R_ChooseFile: Work has not yet started on this, but 
should be trivial to implement. 
 
 
 
 

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Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-05-04 13:11

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Also seemingly important: 
R_ReadConsole, R_WriteConsole. For instance the 
demo packages use R_ReadConsole to place a "To 
continue press <Enter>" prompt. This still goes to 
stdout (and you can press enter in the console you 
started rkward from), but should rather happen in a 
dialog. 

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Comment By: Pierre (ecoch)
Date: 2005-04-21 09:07

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Also R_EditFile would be useful. The current version of
RKWard will not happily handle calls like: "fix(MyFunc)".

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