Scanning objects for Python: Scan and Log

Default prefix for the Log class.

DEFAULT_PREFIX = "*** "

The code for error messages.

ERROR_KIND = "Error"

The code for warning messages.

WARNING_KIND = "Warning"

A compiled regular expression that matches zero or more whitespace characters.

WHITE_PATTERN = re.compile ( r'\s*' )

A regular expression that matches valid integers.

INT_REGEX = (
    r'\s*'            # Ignore leading whitespace
    r'([\-+]?\s*)'    # Optional sign and following whitespace
    r'\d+' )          # One or more digits left of decimal
INT_PATTERN = re.compile ( INT_REGEX )

A regular expression that matches valid floats.

FLOAT_REGEX = (INT_REGEX +
    r'('              # Start optional fraction group
      r'\.'             # Decimal point
      r'\d*'            # Zero or more digits after it
    r')?' )           # Whole group is optional
FLOAT_PATTERN = re.compile ( FLOAT_REGEX )