"""hug/format.py

Defines formatting utility methods that are common both to input and output formatting and aid in general formatting of

fields and content

Copyright (C) 2016 Timothy Edmund Crosley

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated

documentation files (the "Software"), to deal in the Software without restriction, including without limitation

the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and

to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or

substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED

TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF

CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

OTHER DEALINGS IN THE SOFTWARE.

"""

from __future__ import absolute_import

import re

from cgi import parse_header

from hug import _empty as empty

UNDERSCORE = (re.compile('(.)([A-Z][a-z]+)'), re.compile('([a-z0-9])([A-Z])'))

def parse_content_type(content_type):

"""Separates out the parameters from the content_type and returns both in a tuple (content_type, parameters)"""

if ';' in content_type:

return parse_header(content_type)

return (content_type, empty.dict)

def content_type(content_type):

"""Attaches the supplied content_type to a Hug formatting function"""

def decorator(method):

method.content_type = content_type

return method

return decorator

def underscore(text):

"""Converts text that may be camelcased into an underscored format"""

return UNDERSCORE[1].sub(r'\1_\2', UNDERSCORE[0].sub(r'\1_\2', text)).lower()

def camelcase(text):

"""Converts text that may be underscored into a camelcase format"""

return text[0] + "".join(text.title().split('_'))[1:]