Show the tags in a nested structure about vista.vim HOT 10 CLOSED

@idanarye believe I have made some progress on this issue, at least for Python. It would be appreciated to test #58 if you have some time.

My approach is different to the one tagbar used, and I don't know whether it applies everywhere, since the semantics of hierarchy structures is not well defined actually, I can only implement this feature in a heuristic method.

let g:vista_ctags_renderer = 'default' | Vista ctags:

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This feature is blocked by #4 and will be resolved when it is fixed.

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@idanarye You can the branch https://github.com/liuchengxu/vista.vim/tree/provide-default-renderer for now. I provide an option to render by the line number of tags, but the indentation feature is still missing and will be sorted out later.

let g:vista_ctags_renderer = 'default' | Vista:

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Still can't handle nested code that well:

The code, if you want to test it, is:

class Foo:
    class Bar:
        BAR = 12

        class Baz:
            pass

        class Qux:
            pass

    def qux(self):
        def thing1():
            pass

        if True:
            def thing2():
                pass
        else:
            def thing3():
                pass

        def thing4():
            pass

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Thanks for the test code, will look into it.

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@idanarye I have improved the algorithm, please try again, the overall nested structure looks right now. There are still some other glitches, e.g, the highlight of current tag, but just ignore them for now, I will fix that when the nested display is usable.

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Looks good now!

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@idanarye I have fixed the problem of highlighting the nearby tag. I think it's nearly usable now!

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Looking good!

With this, I'm going to start using Vista to replace not only tagbar but TToC as well.

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I have finished all the features I wanted in #58. The nested display will be the default behavior. I'm planning to merge #58 soon, for the problems won't be found until you really use it.

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