为什么ri不显示TCPSocket类？

Question

I am trying to search TCPSocket ruby class documentation with ri but it shows nothing. Most of the gems are shown. I am using rvm , and require 'socket' works perfectly. How to fix this?

Answer 1

Try using:

gem rdoc --all

The documentation says:

--all                        Generate RDoc/RI documentation for all
                                     installed gems

You can find these things out by typing:

gem help

or

gem help rdoc

at the command line.

You might want to throw on --overwrite to overwrite existing documentation.

Old versions of Ruby, around 1.8, didn't always have the core and/or std-lib documentation generated. There's a gem you can install that patches that, but I don't remember what it was right now.