def parse_column_settings(s, l, t):
    """
    [ NOT NULL, increment, default: `now()`]
    """
    result = {}
    if t.get('notnull'):
        result['not_null'] = True
    if 'pk' in t:
        result['pk'] = True
    if 'unique' in t:
        result['unique'] = True
    if 'increment' in t:
        result['autoinc'] = True
    if 'note' in t:
        result['note'] = t['note']
    if 'default' in t:
        result['default'] = t['default'][0]
    if 'ref' in t:
        result['ref_blueprints'] = list(t['ref'])
    if 'comment' in t:
        result['comment'] = t['comment'][0]
    return result
