Changelog
=========

1.0b12 (released 03/12/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Support template fragments, e.g. documents with more than one
  root element. [malthe]

- Added namespace prefix 'xml' to default namespace mapping. [malthe]

- Fixed root cause of issue with self-closing tags; an empty element
  text is now correctly differentiated from a self-closed
  tag (which does not have this attribute set). [malthe]

- Removed support for compilation without ``lxml``. [malthe]

- Use ``xml.parsers.expat`` to parse template document instead of
  using ``lxml``. This gives much greater control over edge-cases and
  allows us to lose many workarounds. [malthe]

- Do not use XPath-expressions during compilation if lxml is not
  available. [malthe]

- Ensure argument uniqueness for macro functions over the combined set of
  scope and keyword arguments. [hannosch]

- Protect all `itertools.chain` statements with an encapsulating set() to
  ensure uniqueness. [hannosch]

1.0b11 (released 29/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Ensure that function arguments passed into macros are unique. [hannosch]

- Removed unused imports, thanks to PyFlakes. [hannosch]

- Removed warning about utf-8 as a recommend default encoding. There is no
  apparent speed improvement anymore. [hannosch]

- Use ``sourcecodegen`` package to generate Python-code from AST; this
  is done to avoid generating code using the ``compiler.pycodegen``
  module, which has serious issues. Interestingly, this approach cuts
  compilation time in half. [malthe]

- Bind code-generation utilities in closure as well. [malthe]

- Reworked global scope initialization; we now bind these using a
  closure. [malthe]

- Reworked repeat-variable logic. An iterator would be realized at any
  rate, so let's not try to be clever. [malthe]

- Made repeat-variable work with iterables which do not announce their
  length before execution. [malthe]

- Added namespace attribute support. [malthe]

- Static attributes are now computed such that attributes are omitted
  according to a `ns_omit` flag, and they are always prefixed
  according to the element's `nsmap`. [malthe]

- Do not fix-up self-closing tags if an XML declaration is present
  without a DOCTYPE. [malthe]

- Prefix tags which do not belong to the default namespace. [malthe]

1.0b10 (released 24/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Do not apply namespace attribute 'xmlns' to root element if not
  set. [malthe]

- Fixed tuple unpacking in repeat loops. [malthe]

- Use a custom simple BufferIO class for the lxml.etree parser instead of
  standard StringIO. [hannosch]

- This was the wrong fix, however; what needed to be changed is that
  the class of the marker isntance must be available at
  module-scope. [malthe]

- Changed generation.marker back to a normal object instance. Otherwise we get
  PicklingError: Can't pickle <class 'chameleon.core.generation.marker'>:
  it's not the same object as chameleon.core.generation.marker. [hannosch]

- Changed two isinstance checks to check for basestring instead of str or
  unicode. [hannosch]

1.0b9 (released 19/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Added ``label`` property to expressions; this allows providing a
  human-readable label for values that are going to
  evaluated. [malthe]

- Normalize METAL slot names to ensure they're valid Python variable
  names. Non-valid characters are converted to underscore. [malthe]

- Renamed dynamic scope variable to `econtext` in order to reduce
  compatibility issues with ZPT. [malthe]

- Fixed issue where multiple defines would cause integrity
  issues. [malthe]

- Avoid self-closing tags that are not allowed in transitional
  HTML. [malthe]

- Use custom serialization method to serialize static default
  translation blocks; we can't rely on `lxml` for sane
  output. [malthe]

- Make `default` symbol available to dynamic attribute
  evaluations. [malthe]

- Visit evaluation before assignment in order to support assignments
  that rely on the same name in the dynamic variable scope. [malthe]

- Conditions may now be inverted; this facilitates the bug-fix of an
  issue where omit conditions were multi-part. [malthe]

- Make sure that arguments passed into the `render`-method are
  introduced in every nested scope. [malthe]

- Added translation language to main scope and make sure redefining it
  inside a closure does not cause issues with nested scope
  locals. [malthe]

1.0b8 (released 16/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Only pretend to delete variables; this improves performance and
  guarantees that we don't attempt to delete a variables which is used
  in a nested scope (closure). It works, because the code generation
  transform silently drops the delete-statements, but removes them
  from its internal scope dictionary. [malthe]

- Remove variables from scope dictionary upon block exit. [malthe]

- Split out compile-function such that we can always write the source
  code to disk in debug-mode. [malthe]

- Correctly transfer scope to callback-function that will fill macro
  slot contents. Previously, we would precompute fill-slots, but this
  was wrong since it's expected to inherit the scope of the macro
  currently in use. [malthe]

- Made error handler compatible with Python 2.4 [malthe]

- Maintain symbol mappings for joined expressions. [malthe]

1.0b7 (released 15/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Fixed interpolation edge where a right curly brace not part of an
  interpolation expression would cancel a succeeding
  interpolation. [malthe]

- Pass `target_language` when using macros. [malthe]

1.0b6 (released 13/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- When validating inserted content (in debug-mode), make sure we wrap
  content as a proper HTML document, including HTML entity
  definitions. [malthe]

- If an element does not belong to a known namespace, assume it's the
  default namespace. This change is relevant after the introduction of
  fallback elements. [malthe]

- XML declarations should be printed with or without a doctype
  element, and only if the template includes it. [malthe]

1.0b5 (released 12/11/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Encode code annotations if encoding is required. [malthe]

- Added filename to XML syntax error exception message. [malthe]

- Fixed bug where a template would be wrapped with namespace
  definitions even if an XML header is present. [malthe]

- Added support for fallback element. [malthe]

- Enabled error handler for macro renderer. [malthe]

- Added error handler which adds debugging information to the
  exception object's string output (in debug-mode only). [malthe]

1.0b4 (released 28/10/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Fixed translation issues (see recently added tests). [malthe]

- Refactored string coercion. [malthe]

1.0b3 (released 13/10/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Fixed issue with parsing expression containing curly
  braces. [malthe]

- Added support for unscoped variable assignment. [malthe]

1.0b2 (released 11/10/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~

- Added support for translating dynamic body text (used in
  interpolation expressions). [malthe]

- Added support for macros prebound to keyword arguments. [malthe]

1.0b1 (released 2/10/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~

- Fixed bugs related to temporary variables with loops and
  conditions. [malthe]

- Set default value for `auto-reload` based on the CHAMELEON_DEBUG
  environment variable check. [malthe]

1.0a4 (released 9/29/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~

- Added method to generate unscoped temporary variables.  [malthe]

- Make lxml a hard dependency for now until the lxml-less logic is stable.
  [wichert]

1.0a3 (released 9/26/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~

- TemplateLoader now checks a default_parser class attribute if no
  parser is specified. [wichert]

1.0a2 (released 9/26/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~

- Added support for dynamic skip condition. [malthe]

- Fixed bug where an AttributeError would be raised when using the
  file cache. [malthe]

1.0a1 (released 9/24/2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~

- First release.


