According to the manual Textmate closes obsolete tabs when the tab bar gets filled up:

2.3.2 Closing Tabs

A common problem is being left with too many open tabs. In an attempt to counter that, TextMate will automatically close tabs that hasn’t been used in a while, when the tab bar overflows.

Additionally there are a few explicit ways that you can close multiple tabs in a single action:

Sometimes you have documents that should stay open, like a to-do list, which may prevent the use of a batch close action. In this case, right-click the tab in question and select Sticky (toggle). When a tab is made sticky, the batch close actions will leave it open.

The problem is that tabs are allowed shrunk to about 4 characters + ellipsis before tab removal starts to kick in. Maybe it should start to remove tabs a bit earlier than that?

Personally I often set the tabs I really want to keep as ‘Sticky’ (right click on the tab) and use the ‘Close Other Tabs’ a lot, in conjunction with the ‘Go to File’ menu (⌘T).

Regards,
Bas


On 8 May 2014, at 20:54 , Tobias Jung <newsgr@tobiasjung.net> wrote:

Adam Štěpánek wrote (Thu, 8 May 2014 19:59:36 +0200):

If you're working on a large project where you actually edit only
several files at the time but you need to peek into other files from
time to time as well (usually as a one-time look), the tab bar gets full
very quickly and it's almost impossible to find there the file you're
looking for.

Well, for a peek you always can right-click the file and select "Quick Look..." from the contextual menu.
Not the same thing, but maybe sufficient...

Kind regards,
Tobias Jung



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