Tcl Tk Windows版 8.6.7

Tags：编程开发软件开发开发环境

时隔一年，Tcl/Tk 核心团队隆重推出了 Tcl/Tk 8.6 项目的最新版本 8.6.7。该版本修复了诸多 bug，并实现了两个 Tcl 改进提案（Tcl Improvement Proposal），引进了 Windows 上的多媒体键支持。此外，Unicode 支持更新到了 10.0。

更新内容

* [TIP 473] (TclOO 1.1.0) Let [oo::copy] specify target namespace

* [TIP 464] Support multimedia keys on Windows

* Revise Tcl_LinkVar to tolerate some prefixes

*** POTENTIAL INCOMPATIBILITY ***

* Allow empty command as [interp alias] target

*** POTENTIAL INCOMPATIBILITY ***

* Revise Tcl_UtfToUniChar() handling of invalid UTF-8

*** POTENTIAL INCOMPATIBILITY ***

* [clock] and [encoding] are now ensembles

* Several [clock] subcommands are now compiled to bytecode

* Fix crashes or hangs in...

- [socket -async ::1 0] with no host

- Threaded memory allocator in thread finalization

- Tcl_ListObjReplace() error when passed NULL interp

- [binary scan a$n] when $n overflows int

- [lsort -unique [lrepeat [expr {1<<27}] 1]]

- Drawing many dashed canvas objects

- Using Tk after IME restart

- Warp pointer operations

- [[text .t] insert 0.0 \na; .t replace 2.0 3.0 b]

- Resource exhaustion processing corrupt GIF

* Fix memory leaks in...

- namespace delete when unset trace revives namespace variable.

- Deletion of the [history] command

- http::geturl when keep-alive is denied

- TclJoinPath on a custom Tcl_Filesystem

- text BTree operations

* Update Unicode data to 10.0

*** POTENTIAL INCOMPATIBILITY ***

* Merge updates from new libtommath release; purge unused files

*** POTENTIAL INCOMPATIBILITY ***

* Update bundled zlib to release 1.2.11

* Remove legacy support macro panic() - conflicts with system libs

*** POTENTIAL INCOMPATIBILITY ***

* Revise Tk font support to avoid type mismatch with recent Xft

* Repair cmd resolver caching, demonstrated by tests resolver-3.1*

* Repair zlib stream buffer flushing; zlib-7.8 and PNG writing

* Prevent Win thread termination during init and teardown

* Make KeyRelease event handling get _L and _R right

* Repaint ttk::button when its image changes

* Wrapped text don't start lines with whitespace

* Non-native themes properly display tri-state buttons

* File dialog repairs for -typevariable, -initialdir, -initialfile

* Avoid unreleasable global grab due to menu keyboard traversal

* Fix Win regression [event generate .e <diaeresis>]

* Fix [grid configure -in] to fully clear outdated info

* Fix ttk::combobox proper style with -postoffset (test combobox-3)

* OSX: Stop [$text bbox] returning negative width

* Repair autoloader fragility loading procs that call tailcall

* Correct parsing in [scan 0x1 %b], [scan 0x1 %o]

* Fix [string replace] so test stringComp-14.5 passes

* Invalidate VFS mounts on sytem encoding change

* Fix [expr {NaN > "Gran"}] to return 1; string comparison

* Stop frequent Tcl_GetTime() calls creating clock drift

* Correct functioning of dynamic unexport of methods

* Fix [file join a //b] and [file join //a b]

* Compute correct warp cursor position on 2nd display

* Enable dismissal of ttk::menubutton without hover

* Tk_BindEvent filter events Tk ignores avoid X11 ring buffer flood

* Allow [$photo read] to read files beginning with "-"

* [text] redisplay calculations corrected on OSX

* Fix drawing of long text lines on Windows

* Disabled combobox arrow appearance (danckaert)

* Fix {PNG -alpha} format for 16-bit color

* Workaround X11 drawing defects in Ubuntu 16.10+

* Fix calculation of ttk::notebook tab widths and tab user management

* Scidb race in notebook tab selection

* Color name parsing set to reject invalid hex color codes (#ABCZ)

* OSX scrollbar draw position, highlights, & smooth scroll

* Race condition on Win clipboard cleanup

* Center image on button

* Paneconfigure get pane heights right

* Windows: User switch forced theme reset

* Updated bundled packages

- Itcl 4.1.0 (incompatible with Itk 4.0, get Itk 4.1)

- sqlite3 3.20.0

- Thread 2.8.1

- tdbc* 1.0.5

- http 2.8.11

- tcltest 2.4.1

- msgcat 1.6.1