.xbuilder.expression_dimension

class experimental_experiment.xbuilder.expression_dimension.Expression(expr: str, parsed: Expression | None = None)

A formula using dimension.

Parameters:

• expr – a string

• parsed – parsed tree (from ast.parse())

isidentifier()

Tells if this expression is a single dimension or an expression.

class experimental_experiment.xbuilder.expression_dimension.ExpressionSimplifier(expr: str | None = None)

class experimental_experiment.xbuilder.expression_dimension.RenameTransformer(mapping)

experimental_experiment.xbuilder.expression_dimension.parse_expression(expr: str, context: Dict[str, Any] | None = None, exc: bool = True) → Expression

Parses an expression involving dimensions.

Parameters:

• expr – an expression

• exc – raises an exception if it fails

• context – known variables (or dimensions)

Returns:

an expression

experimental_experiment.xbuilder.expression_dimension.parse_expression_tokens(expr: str)

Extracts the token from an expression.

experimental_experiment.xbuilder.expression_dimension.rename_expression(expr: str, mapping: Dict[str, str]) → str

Renames variables in a Python expression using AST.

Parameters:

• expr – Python expression as string

• mapping – Mapping from old names to new names

Returns:

rransformed expression

experimental_experiment.xbuilder.expression_dimension.simplify_expression(expr: str) → str

Simplifies an expression.

experimental_experiment.xbuilder.expression_dimension.simplify_two_expressions(expr1: str, expr2: str) → str

Simplifies an expression exp1 == exp2.