Distance recommendations for ri

[erikh]

Could work similar to rubygems' levenshtein matcher, e.g.:

 $ ri Hash.deltee
 WHY HELLO THERE PILGRIM: DID YOU MEAN Hash#delete ?

[drbrain]

I wonder if we can apply an appropriate lever to get string distance matching into Ruby itself so both RDoc and RubyGems can benefit from the same code.

Currently this works:

$ ri19 Encoding.compatibleEncoding.compatible not found, maybe you meant:

Encoding::compatible?

[drbrain]

Oh, if there's only one option ri should just show it, no need to beat the user with their own typos

[erikh]

I think that'd be a good idea, agreed on the single option too, but maybe with some indicator (e.g., how google does it by conspicuously warning you it's changed your search terms)

Big projects are out due to recent developments that are pretty much sapping all my free time, but I'll be happy to send a string patch to the right places if you'd be willing to review and back it for this purpose, which should hopefully simplify things a bit for you.

[drbrain]

Can you copy the distance code in from RubyGems and apply it to RDoc::RI::Driver?

It looks like it would go in #display_name