Syx 0.1.7 has been released

Hello,
after several months a new version of Syx has been released. This release contains mostly VM changes and some changes to the Smalltalk Collections. As usual, release notes follow:

This versions enhances a new version of the interpreter, major updates to the scheduler, and as usual a lot of bug fixes. Syx left the Google Code SVN repositories because of many connection problems.

You can find informations about the new GIT repository here: http://code.google.com/p/syx/wiki/GitSource?tm=4

Installation instructions: http://code.google.com/p/syx/wiki/InstallationInstructions

API and environment:

• SYX_ROOT_PATH and SYX_PLUGIN_PATH environment variables have been introduced.
• Process and context creation changed.
• New functions have been added for the scheduler, for manually do events iteration and adding idle functions to wake up semaphores.
• Startup responsibility has been dropped from libsyx.
• Added syx errors for system signals to be used with syx_signal.
• Image recovering has been fixed.

Smalltalk:

• Covered several standard methods for Collections, Numbers and Object printing/storing.
• Error reporting from the VM now drops the exception to the Smalltalk environment when the interpreter is running.
• Random class has been added.
• Signal handling improvements for the GTK+ plugin.
• #display family methods have been introduced for Smalltalk objects.

Interpreter:

• System signal handling has been improved.
• Cache hash code of Symbols.
• The interpreter has been refactored to use one stack per Process.
• Contexts are now created only on demand.
• Optimized Symbols creation.
• Signal class has been abstracted.

Parser:

• The parser have been changed for handling new interpreter specifications.
• Several fixes to the parser for special cases.
• Fixed blocks scope.
• Support <- assignment.

Image:

• Image snapshot will nullify C pointers
• Image format has been changed for handling new interpreter specifications.
• Handle internal interpreter C pointers to be restored the right way.

Scheduler:

• Different behavior of the scheduler for POSIX and Windows systems has been introduced.
• Scheduler external idle sources have been added.
• Asyncronous command line and GTK+ loop using semaphores. This leads to dropping readline.
• A simple round robin scheduler has been added.
• Dropped image saving of POSIX fd poll

Documentation:

• Added lots of new comments.
• Started documentation project including a manual still under development and a manpage.

Thanks to everyone contributing to the project.

See the ChangeLog for a complete list of things that changed.