if_ruby: Add rubyeval() function

[ichizok]

Examples:

echo rubyeval('true')
" v:true

echo rubyeval('false')
" v:false

echo rubyeval('nil')
" v:null

echo rubyeval('123')
" 123

echo rubyeval('"str"')
" 'str'

echo rubyeval(':sym')
" 'sym'

echo rubyeval('[0,1,2]')
" [0,1,2]

echo rubyeval('{"key" => "val"}')
" {'key': 'val'}

" Other objects: return the result of `Object#to_s`
echo rubyeval('Vim')
" 'Vim'

echo rubyeval('Vim.class')
" 'Module'

This pull-req, vim converts ruby objects which cannot correspond naturally to vim objects to strings resulted from "Object#to_s".
Or, is it better to (not convert and) raise conversion error?

[brammool]

Ozaki Kiichi wrote:

Examples: ```vim echo rubyeval('true') " v:true echo rubyeval('false') " v:false echo rubyeval('nil') " v:null echo rubyeval('123') " 123 echo rubyeval('"str"') " 'str' echo rubyeval(':sym') " 'sym' echo rubyeval('[0,1,2]') " [0,1,2] echo rubyeval('{"key" => "val"}') " {'key': 'val'} " Other objects: return the result of `Object#to_s` echo rubyeval('Vim') " 'Vim' echo rubyeval('Vim.class') " 'Module' ``` This pull-req, vim converts ruby objects which cannot correspond naturally to vim objects to strings resulted from "Object#to_s". Or, is it better to (not convert and) raise conversion error?

Thanks, looks good. In the tests you replaced RubyEval() with rubyeval(). That means the form with ":ruby print {expr}" is no longer tested. I think we should test both, since the results are not exactly the same. Can you please Keep the RubEval() lines and add the rubyeval() lines? Perhaps with some convenient function to reduce the number of lines. It would take the expression and the value that RubEval() is expected to return and a value that rubyeval() is expected to return.

…

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[dpelle]

Othet → Other

[ichizok]

Thank you, fixed it.

[ichizok]

Updated patch: Add more tests for "ruby print" in Test_print (test_ruby).