"""
argparse for mail-style headers

``headerparser`` parses key-value pairs in the style of RFC 822 (e-mail)
headers and converts them into case-insensitive dictionaries with the trailing
message body (if any) attached.  Fields can be converted to other types, marked
required, or given default values using an API based on the standard library's
``argparse`` module.  (Everyone loves ``argparse``, right?) Low-level functions
for just scanning header fields (breaking them into sequences of key-value
pairs without any further processing) are also included.

Visit <https://github.com/jwodder/headerparser> or
<http://headerparser.rtfd.io> for more information.
"""

from .errors   import (
                        Error,
                            ParserError,
                                DuplicateFieldError,
                                FieldTypeError,
                                InvalidChoiceError,
                                MissingFieldError,
                                UnknownFieldError,
                                MissingBodyError,
                                BodyNotAllowedError,
                            ScannerError,
                                MalformedHeaderError,
                                UnexpectedFoldingError,
                      )
from .normdict import NormalizedDict
from .parser   import HeaderParser
from .scanner  import scan, scan_file, scan_lines, scan_string, scan_stanzas, \
                        scan_stanzas_string, scan_next_stanza, \
                        scan_next_stanza_string
from .types    import BOOL, lower, unfold

__version__      = '0.4.0'
__author__       = 'John Thorvald Wodder II'
__author_email__ = 'headerparser@varonathe.org'
__license__      = 'MIT'
__url__          = 'https://github.com/jwodder/headerparser'

__all__ = [
    'BOOL',
    'BodyNotAllowedError',
    'DuplicateFieldError',
    'Error',
    'HeaderParser',
    'FieldTypeError',
    'InvalidChoiceError',
    'MalformedHeaderError',
    'MissingBodyError',
    'MissingFieldError',
    'NormalizedDict',
    'ParserError',
    'ScannerError',
    'UnexpectedFoldingError',
    'UnknownFieldError',
    'lower',
    'scan',
    'scan_file',
    'scan_lines',
    'scan_next_stanza',
    'scan_next_stanza_string',
    'scan_stanzas',
    'scan_stanzas_string',
    'scan_string',
    'unfold',
]