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Version 0.15.0 released
=======================
.. container:: metadata
Posted by Dominik Picheta on 17/09/2016
Some text here.
Changes affecting backwards compatibility
-----------------------------------------
- De-deprecated ``re.nim`` because we have too much code using it
and it got the basic API right.
- ``split`` with ``set[char]`` as a delimiter in ``strutils.nim``
no longer strips and splits characters out of the target string
by the entire set of characters. Instead, it now behaves in a
similar fashion to ``split`` with ``string`` and ``char``
delimiters. Use ``splitWhitespace`` to get the old behaviour.
- The command invocation syntax will soon apply to open brackets
and curlies too. This means that code like ``a [i]`` will be
interpreted as ``a([i])`` and not as ``a[i]`` anymore. Likewise
``f (a, b)`` means that the tuple ``(a, b)`` is passed to ``f``.
The compiler produces a warning for ``a [i]``::
Warning: a [b] will be parsed as command syntax; spacing is deprecated
See `<https://github.com/nim-lang/Nim/issues/3898>`_ for the relevant
discussion.
- Overloading the special operators ``.``, ``.()``, ``.=``, ``()`` now
should be enabled via ``{.experimental.}``.
- ``immediate`` templates and macros are now deprecated.
Instead use ``untyped`` parameters.
- The metatype ``expr`` is deprecated. Use ``untyped`` instead.
- The metatype ``stmt`` is deprecated. Use ``typed`` instead.
- The compiler is now more picky when it comes to ``tuple`` types. The
following code used to compile, now it's rejected:
.. code-block:: nim
import tables
var rocketaims = initOrderedTable[string, Table[tuple[k: int8, v: int8], int64] ]()
rocketaims["hi"] = {(-1.int8, 0.int8): 0.int64}.toTable()
Instead be consistent in your tuple usage and use tuple names for tuples
that have tuple name:
.. code-block:: nim
import tables
var rocketaims = initOrderedTable[string, Table[tuple[k: int8, v: int8], int64] ]()
rocketaims["hi"] = {(k: -1.int8, v: 0.int8): 0.int64}.toTable()
- Now when you compile console application for Windows, console output
encoding is automatically set to UTF-8.
Library Additions
-----------------
- Added ``readHeaderRow`` and ``rowEntry`` to ``parsecsv.nim`` to provide
a lightweight alternative to python's ``csv.DictReader``.
- Added ``setStdIoUnbuffered`` proc to ``system.nim`` to enable unbuffered I/O.
- Added ``center`` and ``rsplit`` to ``strutils.nim`` to
provide similar Python functionality for Nim's strings.
- Added ``isTitle``, ``title``, ``swapCase``, ``isUpper``, ``toUpper``,
``isLower``, ``toLower``, ``isAlpha``, ``isSpace``, and ``capitalize``
to ``unicode.nim`` to provide unicode aware case manipulation and case
testing.
- Added a new module ``lib/pure/strmisc.nim`` to hold uncommon string
operations. Currently contains ``partition``, ``rpartition``
and ``expandTabs``.
- Split out ``walkFiles`` in ``os.nim`` to three separate procs in order
to make a clear distinction of functionality. ``walkPattern`` iterates
over both files and directories, while ``walkFiles`` now only iterates
over files and ``walkDirs`` only iterates over directories.
Compiler Additions
------------------
- The ``-d/--define`` flag can now optionally take a value to be used
by code at compile time.
Nimscript Additions
-------------------
- Finally it's possible to dis/enable specific hints and warnings in
Nimscript via the procs ``warning`` and ``hint``.
- Nimscript exports a proc named ``patchFile`` which can be used to
patch modules or include files for different Nimble packages, including
the ``stdlib`` package.
Language Additions
------------------
- Added ``{.intdefine.}`` and ``{.strdefine.}`` macros to make use of
(optional) compile time defines.
- If the first statement is an ``import system`` statement then ``system``
is not imported implicitly anymore. This allows for code like
``import system except echo`` or ``from system import nil``.
Bugfixes
--------
|