/usr/share/gedit/plugins/RCtrl/rgedit-helper-script.r is in gedit-r-plugin 0.7.1.1-Gtk3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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## ##
## Script containing R functions and misc stuff needed by rgedit. ##
## This is an integral part of rgedit. ##
## ##
## Copyright (C) 2009-2010 Dan Dediu ##
## ##
## This program is free software: you can redistribute it and/or modify ##
## it under the terms of the GNU General Public License as published by ##
## the Free Software Foundation, either version 3 of the License, or ##
## (at your option) any later version. ##
## ##
## This program is distributed in the hope that it will be useful, ##
## but WITHOUT ANY WARRANTY; without even the implied warranty of ##
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ##
## GNU General Public License for more details. ##
## ##
## You should have received a copy of the GNU General Public License ##
## along with this program. If not, see <http://www.gnu.org/licenses/>. ##
## ##
###############################################################################
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# Copy the last line (plus a newline) to clipboard (can use xclip and xsel on *nix and pbcopy on MacOSX):
#########################################################################################################
.rgedit.lastline2clipboard <- function( clipboard.command = "xclip" )
{
# The possible clipboard commands:
clipboard.commands <- c( "xclip", "xsel", "pbcopy" );
# The correct command line depending on the option used:
pipe.commands <- c( "xclip -i -selection clipboard", "xsel --clipboard", "pbcopy" );
names(pipe.commands) <- clipboard.commands;
# Try to detect which clipboard commands are installed in the system:
available.clipboard.commands <- c( FALSE, FALSE, FALSE ); names(available.clipboard.commands) <- clipboard.commands;
for( i in 1:length(available.clipboard.commands) )
{
available.clipboard.commands[i] <- length(system( paste( "command -v ", names(available.clipboard.commands)[i], sep=""), intern=TRUE )) > 0;
}
if( sum(available.clipboard.commands) == 0 )
{
stop( "No cpliboard manipulation programs installed on your machine! Please install xclip or xsel (on *nix) and pbcopy (on MacOSX)!\n" );
}
# Try to satisfly the user's preference:
if( sum(clipboard.command == names(pipe.commands)) == 0 )
{
# Unknown clipboard command: print a warning and try your best:
cat( "Warning: unknown option ", clipboard.command );
clipboard.command = (names(available.clipboard.commands)[available.clipboard.commands])[1];
cat( " -- using ", clipboard.command, " instead...\n" );
}
else if( !available.clipboard.commands[clipboard.command] )
{
# Preferred command not installed: print a warning and try your best:
cat( "Warning: requested command ", clipboard.command );
clipboard.command = (names(available.clipboard.commands)[available.clipboard.commands])[1];
cat( " -- using ", clipboard.command, " instead...\n" );
}
# Save whole shitory to temporaty file:
hist.file <- tempfile( "Rhistory" );
savehistory( hist.file );
full.hist <- readLines( hist.file );
unlink( hist.file );
# Read the last line before this one:
last.line <- full.hist[ length(full.hist)-1 ];
# And copy it to the clipboard:
clipboard.pipe <- pipe( pipe.commands[clipboard.command], "w" );
cat( paste(last.line,"\n",sep=""), file=clipboard.pipe );
close( clipboard.pipe );
# Restore the history without the last command:
hist.file <- tempfile( "Rhistory" );
writeLines( full.hist[ -length(full.hist) ], hist.file );
loadhistory( hist.file );
unlink( hist.file );
}
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