# from jinja2.utils import Markup, escape, pformat, urlize, soft_unicode, \
#     unicode_urlencode
from jinja2.runtime import Undefined
#from jinja2.exceptions import FilterArgumentError
#from jinja2._compat import imap, string_types, text_type, iteritems


def environmentfilter(f):
    """Decorator for marking environment dependent filters.  The current
    :class:`Environment` is passed to the filter as first argument.
    """
    f.environmentfilter = True
    return f


@environmentfilter
def do_customwordwrap(environment, s, width=79, break_long_words=True,
                      wrapstring=None, break_on_hyphens=False):
    """
    Return a copy of the string passed to the filter wrapped after
    ``79`` characters.  You can override this default using the first
    parameter.  If you set the second parameter to `false` Jinja will not
    split words apart if they are longer than `width`. By default, the newlines
    will be the default newlines for the environment, but this can be changed
    using the wrapstring keyword argument.
    """
    if not wrapstring:
        wrapstring = environment.newline_sequence
    import textwrap
    return wrapstring.join(textwrap.wrap(s, width=width, expand_tabs=False,
                                         replace_whitespace=False,
                                         break_long_words=break_long_words,
                                         break_on_hyphens=break_on_hyphens))