Names beginning with [ do not tab complete properly in IRC

[[ICR]]

If someone has a nickname beginning with [ do not tab complete properly in IRC.

Steps to reproduce: 1) Go into an IRC room where someone has a nick beginning with [ (e.g [ICR]) 2) Type [, tab and it tab completes 3) Type [I and it doesn't tab complete properly but instead tries to instead autocomplete words beginning with I.

[[ICR]]

Replying to [ICR]:

If someone has a nickname beginning with [ do not tab complete properly in IRC. Steps to reproduce: 1) Go into an IRC room where someone has a nick beginning with [ (e.g [ICR]) 2) Type [, tab and it tab completes 3) Type [I and it doesn't tab complete properly but instead tries to instead autocomplete words beginning with I.

It also doesn't work if there is text before the [.

[Zachary West <zacw@…>]

(In  e6cf2d4672e5) Control more directly the completion range for group chats. Fixes #13237.

We now go back to the nearest whitespace and see if it would autocomplete any nicks at that point. If it would, we perform the autocompletion starting at that point. If it doesn't, we let the OS do its normal thing.

This fixes autocompleting things like "[mynick]" or the channel name (such as "#adium") since they start with non-word characters, but are perfectly valid.

[Zachary West <zacw@…>]

(In  862f4e3f05e1) Control more directly the completion range for group chats. Fixes #13237.

We now go back to the nearest whitespace and see if it would autocomplete any nicks at that point. If it would, we perform the autocompletion starting at that point. If it doesn't, we let the OS do its normal thing.

This fixes autocompleting things like "[mynick]" or the channel name (such as "#adium") since they start with non-word characters, but are perfectly valid.