Old is New and New is Old

YAP 6.3.4

This work is experimental and under active development, please be careful when using it, and be prepared.

YAP-6.3.4 includes changes to most components of the system: Major internal changes are:

• error handling code moved out of emulator
• a new flag manipulation library
• a text conversion library, based on the ideas of the SWI-Prolog text buffers
• support for strings
• Original YAP Input/Output has been split into a library, and broken into smaller files
• utf8proc for unicode manipulation
• foreign language interface: initial, SWI and a new C++ based
• many bug fixes
• new module support code
• changes to the debugger, that still need work.
• mode based tabling
• etc, etc

The configuration system has been changed to cmake: nobody likes messing with cmake :) Please use cmake, cmake-gui, etc for system configuration.

• -DCMAKE_RELEASE_TYPE
• -DCMAKE_INSTALL_PREFIX
• -DWITH.... to select individual packages

Documentation is provided by doxygen-yap, an extension of doxygen that we are developing to support Prolog. doxygen-yao is close to pldoc, please check an experimental site to see the current status. Less powerful than pldoc, doxygen-yap is designed to allow integration between Prolog and C-code, etc.

Adapters:

• jpl (currently with library problems)
• swig ( with python and java), developed toward andoid stuff
• prolog to R, a different version of Real
• prolog to python

Probabilistic libraries/languages

• cp-lint
• problog-i (with in-core bdd for faster learning)
• clp(bn)/pfl
• prism

they are supported by a BDD interface.

Data support

• exo data, see ICLP paper
• myddas has ben separated in two layers, the bottom (driver) later includes prototype drivers for odbc, postgres, mysql and sqlite3
• initial drivers for web data based on libxml2 (XML) and raptor (RDF).

Bottom-up execution:

• GPU library
• tuple-at-a-time Prolog emulator

Constraints

• gecode interface
• the CLP(FD), CLP(R) and CHR packages will be added soon.

And more....

This is a major rewrite to the system. Expect brokenness : YAP may eat your disk, dance on your keyboard, and chase your mouse into your fridge.It will definitely not compile on your WIndows machine (right now).

Have fun!

Vitor