Backslashes get lost when passing arguments to an external program via
backquote command
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Key: JRUBY-3203
URL: http://jira.codehaus.org/browse/JRUBY-3203
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.1.5
Environment: Windows XP
Reporter: David Jameson
I have some ruby code that invokes an external program I wrote in Delphi to set
an environment variable in windows (by modifying the Windows registry) so that
there's no need to reboot.
Typical usage is
result = `setenv #{envName} \"#{envValue}\"`
(NB the escaped double quotes are just used to ensure that the second argument,
which may have spaces, is seen as a single parameter)
This works perfectly fine in ruby 1.8
However, if I compile the code to a jruby class and run it, I find that path
separators contained within the envValue (such as one would see if setting the
PATH) are completely lost. Note that escaping the path separator with another
backslash does not work...ALL the backslashes get lost. This was easily
confirmed by having my Delphi program write the incoming arguments to STDERR
My workaround was to convert all path separators found in envValue to a
different character not allowed in Windows paths and then my Delphi program
undoes that change before setting the environment variable. Obviously, this
workaround is not a general solution (but it lets me keep going :-)
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