teal.code 0.7.0

Introduced get_outputs function to fetch objects which have been printed or plotted in the qenv code.

Fix a problem detecting co-occurrences when expression has multiple lines (#249).
Fix a assignment bug within curly expression (#252).

eval_code uses evaluate::evaluate and stores returned outputs in the code’s attribute.
Refactor eval_code method signature to allow for more flexibility when extending the eval_code/within functions.
get_var(qenv, ...) and join(qenv, ...) are hard deprecated.

teal.code 0.6.1

Fix an infinite recursion happening when lhs contains two or more symbols occurring in the rhs of the same call.

Introduced [.qenv function to subset qenv object (code and environment) to specified object names.
get_code() was extended with names parameter and allows the code extraction to be limited to objects stored in qenv but limited to names.
Introduced get_messages() to get messages produced during code evaluation.
get_code() returns original code formatting (white spaces and comments) passed to eval_code().
qenv inherits from the environment class, allowing to use ls(), names(), as.environment() and other functions on qenv objects.

qenv objects should now be created with qenv() rather than new_qenv(). The new constructor always creates an empty object. new_qenv is now deprecated.

Exported the qenv class from the package.
The @code field in the qenv class now holds character, not expression.
The get_code method returns a single concatenated string of the code.
Added within support for qenv.error class.
Added get_env method that allows to extract environment stored in qenv@env slot.

Fix NEWS
Updated usage and installation instructions in README.
Updated phrasing of the qenv vignette.
Specified minimal version of package dependencies.
Added within method for qenv for convenient passing of inline code to eval_code.

chunks have been removed. The new qenv object should be used instead. See the new qenv vignette in the package for further details.

chunks have now been deprecated and will be removed from the package in a future release. The new qenv object should be used instead. See the new qenv vignette in the package for further details.

New wrapper function chunks_deep_clone to make a deep (i.e. completely independent) copy of a chunks objects.
Added a new wrapper chunks_new for chunks initialization.

Initial release of teal.code, a package for code storage and execution class for teal applications.