"""Constants that define defaults."""
import re

EXCLUDE = (
    '.svn',
    'CVS',
    '.bzr',
    '.hg',
    '.git',
    '__pycache__',
    '.tox',
    '.eggs',
    '*.egg',
)
IGNORE = (
    'E121',
    'E123',
    'E126',
    'E226',
    'E24',
    'E704',
    'W503',
    'W504',
)
SELECT = ('E', 'F', 'W', 'C90')
MAX_LINE_LENGTH = 79

TRUTHY_VALUES = {'true', '1', 't'}

# Other constants
WHITESPACE = frozenset(' \t')

STATISTIC_NAMES = (
    'logical lines',
    'physical lines',
    'tokens',
)

NOQA_INLINE_REGEXP = re.compile(
    # We're looking for items that look like this:
    # ``# noqa``
    # ``# noqa: E123``
    # ``# noqa: E123,W451,F921``
    # ``# NoQA: E123,W451,F921``
    # ``# NOQA: E123,W451,F921``
    # We do not care about the ``: `` that follows ``noqa``
    # We do not care about the casing of ``noqa``
    # We want a comma-separated list of errors
    '# noqa(?:: (?P<codes>([A-Z][0-9]+,?)+))?',
    re.IGNORECASE
)

NOQA_FILE = re.compile(r'\s*# flake8[:=]\s*noqa', re.I)