I am searching for a good portable text editor or IDE for Ruby to use on
my pen drive, I am not interested in other languages, neither Ruby on
Rails, just a very good place to write Ruby code. Any idea?
What is your definition of 'portable'? Something that runs from the
same installation dir across different operating systems? Different
distributions of linux? Or just different machines running the same
OS/distribution?
This page might be helpful:
https://spreadsheets.google.com/ccc?key=0Al_hzYODcgxwdG9tUFhqcVVoUDVaLTlqT2YtNjV1N0E&hl=en
The topic of ruby ides comes up periodically here, and usually
generates a long thread, so search the archives. The matrix above came
about from this previous incarnation of this topic, for instance:
http://www.ruby-forum.com/topic/195926
I'm somewhat skeptical that you'll find something truly portable (to
different OSs)... editors tend to depend on a lot of system specific
stuff and require a big stack of gui libraries underneath. You should
be able to get, say, 2 different installations (mac and windows) of
the same editor going on your pen drive. You might also have luck with
something java-based, if you want to assume that whatever machine it's
used on has a JVM installed.