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GF 3.7.1 Release Notes
October 2015
==Installation==
See the [download page http://www.grammaticalframework.org/download/index.html].
==What's new==
Over 170 changes have been pushed to the source repository since
[the release of GF 3.7 release-3.7.html] in June 2015.
===GF compiler and run-time library===
====New features and notable changes====
- GF shell: ``cc -trace`` (preliminary): you can now do things like
``cc -trace mkV "debug"``
to see a trace of all opers with their arguments and results during the
computation of ``mkV "debug"``.
- GF shell: you can now parse and linearize with the C run-time system
from the GF shell by starting GF with ``gf -cshell`` or ``gf -crun``.
Only limited functionality is available when running the shell in these
modes (use the ``help`` command in the shell for details):
- You can only import ``.pgf`` files, not source files.
- The ``-retain`` flag can not be used and the commands that require it to
work are not available.
- GF now supports parallel batch compilation of grammars.
- ``gf -make -j=``//n// uses //n// parallel threads.
- ``gf -make -j`` adapts to the number of processors in the system.
(This depends on the function ``Control.Concurrent.setNumCapabilities``,
which is only available in GHC>=7.6 (base>=4.6).
GF can still be compiled with GHC<7.6, but then you have
to use ``+RTS -N -RTS`` to take advantage of multicore processors.)
- GF shell: more commands (``cc``, ``sd``, ``so``, ``ss``, ``dg``, ``ph``)
can now be used in pipes and
the ``eh`` (``execute_history``) command now works again.
====Other changes and bug fixes====
- Various improvements and bug fixes in the C run-time system and its
bindings to other languages.
====Changes of interest to compiler developers====
- The implementation of the GF shell has been refactored, both to accommodate
the C run-time mode (``gf -cshell``), to allow a more uniform treatment
of different types of commands, and to fix some commands that have been
broken for years.
===Resource Grammar Library===
- Various fixes for several languages.
- Numerous fixes in the translation dictionaries.
===GF Cloud services===
- PGF service: by adding ``unlexer=none`` (or ``unlexer=id``)
in requests that output linearizations
(e.g. ``command=linearize``, ``command=translate``),
you can leave ``&+`` uninterpreted instead of gluing the adjacent tokens.
This means that the output is left in a format that can be parsed in
a subsequent request.
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