Types

EMathEvalError = object of EMathException

EMathException = object of ValueError

EMathNotDefined = object of EMathEvalError
  ident*: string
  kind*: EMathSymbolKind

EMathParseError = object of EMathException

EMathSymbolKind = enum
  emskFunc = "function", emskVar = "variable"

EMathTokenError = object of EMathParseError
  slice*: Slice[int]