#4549: tcl-8.6.10
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Reporter: renodr | Owner: lfs-book
Type: task | Status: new
Priority: normal | Milestone: 9.1
Component: Book | Version: SVN
Severity: normal | Resolution:
Keywords: |
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Comment (by bdubbs):
Highlights of Tcl 8.6
Object Oriented Programming: The commands of the TclOO package are now
part of Tcl itself. This gives Tcl a built-in object system that is fully
dynamic, class-based, and includes advanced features such as meta-classes,
filters, and mixins.
New version 4 of the popular package Itcl (aka incr Tcl) is also
included, now built on a TclOO foundation, granting support for some
traditional OO Tcl programming out of the box as well.
Stackless Evaluation: The evaluation of many levels of nested proc
calls are no longer implemented as a stack of nested C routine calls. This
revision in the internal implementation of Tcl evaluation makes deep
recursion in Tcl scripts safe to do. But there's more...
This new implementation enables a collection of new commands,
coroutine, tailcall, yield, and yieldto that provide profound new
capabilities and models of concurrency to Tcl scripts.
Enhanced Exceptions: New commands try and throw and a wealth of new
-errorcode values enable far more precise trapping and handling of
exceptions using a familiar construct.
Batteries Included: Tcl delivers in the pkgs subdirectory a bundled
collection of third-party packages built and installed along with Tcl.
Thread-enabled Operations: A thread-enabled default build, a bundled
Thread package, and new command interp cancel make Tcl 8.6 ready for your
multi-threaded programming tasks.
SQL Database Powered: The bundled Tcl DataBase Connectivity (tdbc)
interface package makes it possible to write your SQL database-powered
scripts decoupled from any particular database engine. The bundled sqlite3
and tdbc::sqlite3 packages supply a powerful and popular SQL database
engine ready to use.
IPv6 Networking: Both client and server sockets support IPv6 where
platform support exists.
Built-in Zlib Compression: New command zlib provides utilities to
handle compression of data and streams.
List Processing: New commands lmap and dict map enable the elegant
expression of transformations over Tcl containers.
Stacked Channels by Script: New commands chan push and chan pop expose
the power of stacked channels without the need to write C code.
Additional New Features: Temporary file creation, enhancements to list
sorting and setting, dict filtering, half-close of bidirectional channels,
encoding and decoding of binary sequences, finer control over load, and
many many more.
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