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A simple python based expression language

Project description

Brabbel

Brabbel is a small python based expression language which can be used to evaluate simple expressions.

Brabbel provides the following set of features:

  • Values: Strings, Numbers, Variables , Lists

  • simple arithmetic operations: + - / *

  • simple equation : < > <= >= == !=

  • simple bool operation: and or not

  • function calls: date, bool

  • other: check if values is _in_ a list

Brabbel is the german term for the first “language” of a baby and emphasises the reduced coverage of this language. 0.4.1 ===== - Changed license from MIT to GPL v2+ and added LICENSE.txt - Added “bdist_rpm” section setup.cfg. - Added “egg_info” section setup.cfg.

0.4.0

  • Make comparison of operators more type safe. Evaluation of terms is only valid of operators of the same type. Otherwise the term will evaluate to False.

  • Implement short circuiting for “and” and “or” operators.

  • Support “True”,”False”,”None” in bool function.

  • Refactored code. Created own module for operators and functions.

  • Added documentation.

0.3.0

Make Brabbel Python3 compatible. Added python-future package as dependency

  • Allow dots “.” in variable names.

0.2.7

  • Fixed handling of integer and string values in lists.

0.2.6

  • Added folders for documentation (currently empty)

  • Allow “-” in Strings

  • Added more tests.

0.2.5

  • Log warning if a variable can not be resolved in the values dict.

  • Allow signed numbers. Currently only negativ sign is allowed.

  • String to not have a “’” anymore.

  • Added more tests.

0.2.4

  • Compatiblity: Allow “-” in variable names.

  • Fixed strip of “’” in “len” function.

0.2.3

  • Allow empty strings

  • Fix bool function

  • Allow lists as param for functions

0.2.2

  • Added len function

0.2.1

  • Be more tolerant on whitespaces in delimeted lists,

  • Fix call of functions

0.2

  • Add operator mapping for operators like ge, gt, le, lt, eq, ne

  • Be more tolerant on getting non existing values from the values dictionary.

  • Removed Rule class.

0.1

  • Initial Release

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