rustdoc: feature request directly go to item on exact match

[TrAyZeN]

Problem

Hello, we already have an option Directly go to item in search if there is only one result which can be enabled in the settings

However, when typing an item path we have a lot of results that shows up and so we can rarely get redirected with the previous option.

Solution

I think that it could be useful to have a feature Directly go to item on exact match.

• This feature would be an option which can be enabled in the settings (so we still let users to choose what they prefer).
• As the name suggests it would redirected to the item documentation when typing the exact path.

For instance, on the previous screenshot when typing std::vec::Vec it would redirect to the item page.

[jyn514]

Rather than adding a new option, I would change the existing option to take you to the page if there's only one match or there's an exact match.

[PatchMixolydic]

If I'm reading this correctly, redirecting on an exact match when there's more than one result could be problematic if one type's name is the prefix of another (ex. searching for std::ffi::OsString would take you to std::ffi::OsStr).

[jyn514]

(ex. searching for std::ffi::OsString would take you to std::ffi::OsStr).

I don't see why that's true? OsString is not an exact match for OsStr.

[0xPoe]

@rustbot claim

[0xPoe]

I would like to try it.

[PatchMixolydic]

(ex. searching for std::ffi::OsString would take you to std::ffi::OsStr).

I don't see why that's true? OsString is not an exact match for OsStr.

This could be problematic for slow typers due to Rustdoc's incremental search feature. I may be misunderstanding how this feature will work, but if I'm not, then the problem is as follows: the user may type out std::ffi::OsSt, press 'r', then move to press 'i', but then get redirected to OsStr's docs before they can press the key.

[jyn514]

Oh I see - we could increase the delay for sending you to an exact match to something like a couple seconds.

[the8472]

How about going to the first result when hitting the return key?

[jyn514]

How about going to the first result when hitting the return key?

Sure, that also seems useful, right now enter does nothing immediately after a search. I think we can do both :)

[TrAyZeN]

If I'm reading this correctly, redirecting on an exact match when there's more than one result could be problematic if one type's name is the prefix of another (ex. searching for std::ffi::OsString would take you to std::ffi::OsStr).

I did not think about that issue but what @the8472 proposed sounds good to me.