change the pipe calling the gnuplot command from a write-only to read-write? #12
Description
Hi!
In Debian, there is this bug report by a user:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626984
reported also on rubyforge:
http://rubyforge.org/tracker/index.php?func=detail&aid=29177&group_id=173&atid=741
proposing to transform the pipe calling the gnuplot command from write-only to read-write, so that the output of the plot could be stored in a variable.
Here is the relevant part of the patch
--- gnuplot.rb.orig 2005-11-15 03:33:42.000000000 +0100
+++ gnuplot.rb 2011-05-06 23:04:02.000000000 +0200
@@ -56,7 +56,12 @@
def Gnuplot.open( persist=true )
cmd = Gnuplot.gnuplot( persist ) or raise 'gnuplot not found'
- IO::popen( cmd, "w") { |io| yield io }
+ IO::popen( cmd, "w+") { |io|
+ yield io
+ io.close_write
+ @output = io.read
+ }
+ return @output
end
the rest is about adding a smooth attribute, but this has already been included.
Would you consider this modification as possible?
Thanks!
Cédric