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mojo/public/third_party/jinja2/filters.py

Index: mojo/public/third_party/jinja2/filters.py
diff --git a/mojo/public/third_party/jinja2/filters.py b/mojo/public/third_party/jinja2/filters.py
deleted file mode 100644
index fd0db04aa41026500910347cf401fe620c556188..0000000000000000000000000000000000000000
--- a/mojo/public/third_party/jinja2/filters.py
+++ /dev/null
@@ -1,987 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-    jinja2.filters
-    ~~~~~~~~~~~~~~
-
-    Bundled jinja filters.
-
-    :copyright: (c) 2010 by the Jinja Team.
-    :license: BSD, see LICENSE for more details.
-"""
-import re
-import math
-
-from random import choice
-from operator import itemgetter
-from itertools import groupby
-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 next, imap, string_types, text_type, iteritems
-
-
-_word_re = re.compile(r'\w+(?u)')
-
-
-def contextfilter(f):
-    """Decorator for marking context dependent filters. The current
-    :class:`Context` will be passed as first argument.
-    """
-    f.contextfilter = True
-    return f
-
-
-def evalcontextfilter(f):
-    """Decorator for marking eval-context dependent filters.  An eval
-    context object is passed as first argument.  For more information
-    about the eval context, see :ref:`eval-context`.
-
-    .. versionadded:: 2.4
-    """
-    f.evalcontextfilter = True
-    return f
-
-
-def environmentfilter(f):
-    """Decorator for marking evironment dependent filters.  The current
-    :class:`Environment` is passed to the filter as first argument.
-    """
-    f.environmentfilter = True
-    return f
-
-
-def make_attrgetter(environment, attribute):
-    """Returns a callable that looks up the given attribute from a
-    passed object with the rules of the environment.  Dots are allowed
-    to access attributes of attributes.  Integer parts in paths are
-    looked up as integers.
-    """
-    if not isinstance(attribute, string_types) \
-       or ('.' not in attribute and not attribute.isdigit()):
-        return lambda x: environment.getitem(x, attribute)
-    attribute = attribute.split('.')
-    def attrgetter(item):
-        for part in attribute:
-            if part.isdigit():
-                part = int(part)
-            item = environment.getitem(item, part)
-        return item
-    return attrgetter
-
-
-def do_forceescape(value):
-    """Enforce HTML escaping.  This will probably double escape variables."""
-    if hasattr(value, '__html__'):
-        value = value.__html__()
-    return escape(text_type(value))
-
-
-def do_urlencode(value):
-    """Escape strings for use in URLs (uses UTF-8 encoding).  It accepts both
-    dictionaries and regular strings as well as pairwise iterables.
-
-    .. versionadded:: 2.7
-    """
-    itemiter = None
-    if isinstance(value, dict):
-        itemiter = iteritems(value)
-    elif not isinstance(value, string_types):
-        try:
-            itemiter = iter(value)
-        except TypeError:
-            pass
-    if itemiter is None:
-        return unicode_urlencode(value)
-    return u'&'.join(unicode_urlencode(k) + '=' +
-                     unicode_urlencode(v) for k, v in itemiter)
-
-
-@evalcontextfilter
-def do_replace(eval_ctx, s, old, new, count=None):
-    """Return a copy of the value with all occurrences of a substring
-    replaced with a new one. The first argument is the substring
-    that should be replaced, the second is the replacement string.
-    If the optional third argument ``count`` is given, only the first
-    ``count`` occurrences are replaced:
-
-    .. sourcecode:: jinja
-
-        {{ "Hello World"|replace("Hello", "Goodbye") }}
-            -> Goodbye World
-
-        {{ "aaaaargh"|replace("a", "d'oh, ", 2) }}
-            -> d'oh, d'oh, aaargh
-    """
-    if count is None:
-        count = -1
-    if not eval_ctx.autoescape:
-        return text_type(s).replace(text_type(old), text_type(new), count)
-    if hasattr(old, '__html__') or hasattr(new, '__html__') and \
-       not hasattr(s, '__html__'):
-        s = escape(s)
-    else:
-        s = soft_unicode(s)
-    return s.replace(soft_unicode(old), soft_unicode(new), count)
-
-
-def do_upper(s):
-    """Convert a value to uppercase."""
-    return soft_unicode(s).upper()
-
-
-def do_lower(s):
-    """Convert a value to lowercase."""
-    return soft_unicode(s).lower()
-
-
-@evalcontextfilter
-def do_xmlattr(_eval_ctx, d, autospace=True):
-    """Create an SGML/XML attribute string based on the items in a dict.
-    All values that are neither `none` nor `undefined` are automatically
-    escaped:
-
-    .. sourcecode:: html+jinja
-
-        <ul{{ {'class': 'my_list', 'missing': none,
-                'id': 'list-%d'|format(variable)}|xmlattr }}>
-        ...
-        </ul>
-
-    Results in something like this:
-
-    .. sourcecode:: html
-
-        <ul class="my_list" id="list-42">
-        ...
-        </ul>
-
-    As you can see it automatically prepends a space in front of the item
-    if the filter returned something unless the second parameter is false.
-    """
-    rv = u' '.join(
-        u'%s="%s"' % (escape(key), escape(value))
-        for key, value in iteritems(d)
-        if value is not None and not isinstance(value, Undefined)
-    )
-    if autospace and rv:
-        rv = u' ' + rv
-    if _eval_ctx.autoescape:
-        rv = Markup(rv)
-    return rv
-
-
-def do_capitalize(s):
-    """Capitalize a value. The first character will be uppercase, all others
-    lowercase.
-    """
-    return soft_unicode(s).capitalize()
-
-
-def do_title(s):
-    """Return a titlecased version of the value. I.e. words will start with
-    uppercase letters, all remaining characters are lowercase.
-    """
-    rv = []
-    for item in re.compile(r'([-\s]+)(?u)').split(s):
-        if not item:
-            continue
-        rv.append(item[0].upper() + item[1:].lower())
-    return ''.join(rv)
-
-
-def do_dictsort(value, case_sensitive=False, by='key'):
-    """Sort a dict and yield (key, value) pairs. Because python dicts are
-    unsorted you may want to use this function to order them by either
-    key or value:
-
-    .. sourcecode:: jinja
-
-        {% for item in mydict|dictsort %}
-            sort the dict by key, case insensitive
-
-        {% for item in mydict|dictsort(true) %}
-            sort the dict by key, case sensitive
-
-        {% for item in mydict|dictsort(false, 'value') %}
-            sort the dict by key, case insensitive, sorted
-            normally and ordered by value.
-    """
-    if by == 'key':
-        pos = 0
-    elif by == 'value':
-        pos = 1
-    else:
-        raise FilterArgumentError('You can only sort by either '
-                                  '"key" or "value"')
-    def sort_func(item):
-        value = item[pos]
-        if isinstance(value, string_types) and not case_sensitive:
-            value = value.lower()
-        return value
-
-    return sorted(value.items(), key=sort_func)
-
-
-@environmentfilter
-def do_sort(environment, value, reverse=False, case_sensitive=False,
-            attribute=None):
-    """Sort an iterable.  Per default it sorts ascending, if you pass it
-    true as first argument it will reverse the sorting.
-
-    If the iterable is made of strings the third parameter can be used to
-    control the case sensitiveness of the comparison which is disabled by
-    default.
-
-    .. sourcecode:: jinja
-
-        {% for item in iterable|sort %}
-            ...
-        {% endfor %}
-
-    It is also possible to sort by an attribute (for example to sort
-    by the date of an object) by specifying the `attribute` parameter:
-
-    .. sourcecode:: jinja
-
-        {% for item in iterable|sort(attribute='date') %}
-            ...
-        {% endfor %}
-
-    .. versionchanged:: 2.6
-       The `attribute` parameter was added.
-    """
-    if not case_sensitive:
-        def sort_func(item):
-            if isinstance(item, string_types):
-                item = item.lower()
-            return item
-    else:
-        sort_func = None
-    if attribute is not None:
-        getter = make_attrgetter(environment, attribute)
-        def sort_func(item, processor=sort_func or (lambda x: x)):
-            return processor(getter(item))
-    return sorted(value, key=sort_func, reverse=reverse)
-
-
-def do_default(value, default_value=u'', boolean=False):
-    """If the value is undefined it will return the passed default value,
-    otherwise the value of the variable:
-
-    .. sourcecode:: jinja
-
-        {{ my_variable|default('my_variable is not defined') }}
-
-    This will output the value of ``my_variable`` if the variable was
-    defined, otherwise ``'my_variable is not defined'``. If you want
-    to use default with variables that evaluate to false you have to
-    set the second parameter to `true`:
-
-    .. sourcecode:: jinja
-
-        {{ ''|default('the string was empty', true) }}
-    """
-    if isinstance(value, Undefined) or (boolean and not value):
-        return default_value
-    return value
-
-
-@evalcontextfilter
-def do_join(eval_ctx, value, d=u'', attribute=None):
-    """Return a string which is the concatenation of the strings in the
-    sequence. The separator between elements is an empty string per
-    default, you can define it with the optional parameter:
-
-    .. sourcecode:: jinja
-
-        {{ [1, 2, 3]|join('|') }}
-            -> 1|2|3
-
-        {{ [1, 2, 3]|join }}
-            -> 123
-
-    It is also possible to join certain attributes of an object:
-
-    .. sourcecode:: jinja
-
-        {{ users|join(', ', attribute='username') }}
-
-    .. versionadded:: 2.6
-       The `attribute` parameter was added.
-    """
-    if attribute is not None:
-        value = imap(make_attrgetter(eval_ctx.environment, attribute), value)
-
-    # no automatic escaping?  joining is a lot eaiser then
-    if not eval_ctx.autoescape:
-        return text_type(d).join(imap(text_type, value))
-
-    # if the delimiter doesn't have an html representation we check
-    # if any of the items has.  If yes we do a coercion to Markup
-    if not hasattr(d, '__html__'):
-        value = list(value)
-        do_escape = False
-        for idx, item in enumerate(value):
-            if hasattr(item, '__html__'):
-                do_escape = True
-            else:
-                value[idx] = text_type(item)
-        if do_escape:
-            d = escape(d)
-        else:
-            d = text_type(d)
-        return d.join(value)
-
-    # no html involved, to normal joining
-    return soft_unicode(d).join(imap(soft_unicode, value))
-
-
-def do_center(value, width=80):
-    """Centers the value in a field of a given width."""
-    return text_type(value).center(width)
-
-
-@environmentfilter
-def do_first(environment, seq):
-    """Return the first item of a sequence."""
-    try:
-        return next(iter(seq))
-    except StopIteration:
-        return environment.undefined('No first item, sequence was empty.')
-
-
-@environmentfilter
-def do_last(environment, seq):
-    """Return the last item of a sequence."""
-    try:
-        return next(iter(reversed(seq)))
-    except StopIteration:
-        return environment.undefined('No last item, sequence was empty.')
-
-
-@environmentfilter
-def do_random(environment, seq):
-    """Return a random item from the sequence."""
-    try:
-        return choice(seq)
-    except IndexError:
-        return environment.undefined('No random item, sequence was empty.')
-
-
-def do_filesizeformat(value, binary=False):
-    """Format the value like a 'human-readable' file size (i.e. 13 kB,
-    4.1 MB, 102 Bytes, etc).  Per default decimal prefixes are used (Mega,
-    Giga, etc.), if the second parameter is set to `True` the binary
-    prefixes are used (Mebi, Gibi).
-    """
-    bytes = float(value)
-    base = binary and 1024 or 1000
-    prefixes = [
-        (binary and 'KiB' or 'kB'),
-        (binary and 'MiB' or 'MB'),
-        (binary and 'GiB' or 'GB'),
-        (binary and 'TiB' or 'TB'),
-        (binary and 'PiB' or 'PB'),
-        (binary and 'EiB' or 'EB'),
-        (binary and 'ZiB' or 'ZB'),
-        (binary and 'YiB' or 'YB')
-    ]
-    if bytes == 1:
-        return '1 Byte'
-    elif bytes < base:
-        return '%d Bytes' % bytes
-    else:
-        for i, prefix in enumerate(prefixes):
-            unit = base ** (i + 2)
-            if bytes < unit:
-                return '%.1f %s' % ((base * bytes / unit), prefix)
-        return '%.1f %s' % ((base * bytes / unit), prefix)
-
-
-def do_pprint(value, verbose=False):
-    """Pretty print a variable. Useful for debugging.
-
-    With Jinja 1.2 onwards you can pass it a parameter.  If this parameter
-    is truthy the output will be more verbose (this requires `pretty`)
-    """
-    return pformat(value, verbose=verbose)
-
-
-@evalcontextfilter
-def do_urlize(eval_ctx, value, trim_url_limit=None, nofollow=False):
-    """Converts URLs in plain text into clickable links.
-
-    If you pass the filter an additional integer it will shorten the urls
-    to that number. Also a third argument exists that makes the urls
-    "nofollow":
-
-    .. sourcecode:: jinja
-
-        {{ mytext|urlize(40, true) }}
-            links are shortened to 40 chars and defined with rel="nofollow"
-    """
-    rv = urlize(value, trim_url_limit, nofollow)
-    if eval_ctx.autoescape:
-        rv = Markup(rv)
-    return rv
-
-
-def do_indent(s, width=4, indentfirst=False):
-    """Return a copy of the passed string, each line indented by
-    4 spaces. The first line is not indented. If you want to
-    change the number of spaces or indent the first line too
-    you can pass additional parameters to the filter:
-
-    .. sourcecode:: jinja
-
-        {{ mytext|indent(2, true) }}
-            indent by two spaces and indent the first line too.
-    """
-    indention = u' ' * width
-    rv = (u'\n' + indention).join(s.splitlines())
-    if indentfirst:
-        rv = indention + rv
-    return rv
-
-
-def do_truncate(s, length=255, killwords=False, end='...'):
-    """Return a truncated copy of the string. The length is specified
-    with the first parameter which defaults to ``255``. If the second
-    parameter is ``true`` the filter will cut the text at length. Otherwise
-    it will discard the last word. If the text was in fact
-    truncated it will append an ellipsis sign (``"..."``). If you want a
-    different ellipsis sign than ``"..."`` you can specify it using the
-    third parameter.
-
-    .. sourcecode:: jinja
-
-        {{ "foo bar"|truncate(5) }}
-            -> "foo ..."
-        {{ "foo bar"|truncate(5, True) }}
-            -> "foo b..."
-    """
-    if len(s) <= length:
-        return s
-    elif killwords:
-        return s[:length] + end
-    words = s.split(' ')
-    result = []
-    m = 0
-    for word in words:
-        m += len(word) + 1
-        if m > length:
-            break
-        result.append(word)
-    result.append(end)
-    return u' '.join(result)
-
-@environmentfilter
-def do_wordwrap(environment, s, width=79, break_long_words=True,
-                wrapstring=None):
-    """
-    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.
-
-    .. versionadded:: 2.7
-       Added support for the `wrapstring` parameter.
-    """
-    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))
-
-
-def do_wordcount(s):
-    """Count the words in that string."""
-    return len(_word_re.findall(s))
-
-
-def do_int(value, default=0):
-    """Convert the value into an integer. If the
-    conversion doesn't work it will return ``0``. You can
-    override this default using the first parameter.
-    """
-    try:
-        return int(value)
-    except (TypeError, ValueError):
-        # this quirk is necessary so that "42.23"|int gives 42.
-        try:
-            return int(float(value))
-        except (TypeError, ValueError):
-            return default
-
-
-def do_float(value, default=0.0):
-    """Convert the value into a floating point number. If the
-    conversion doesn't work it will return ``0.0``. You can
-    override this default using the first parameter.
-    """
-    try:
-        return float(value)
-    except (TypeError, ValueError):
-        return default
-
-
-def do_format(value, *args, **kwargs):
-    """
-    Apply python string formatting on an object:
-
-    .. sourcecode:: jinja
-
-        {{ "%s - %s"|format("Hello?", "Foo!") }}
-            -> Hello? - Foo!
-    """
-    if args and kwargs:
-        raise FilterArgumentError('can\'t handle positional and keyword '
-                                  'arguments at the same time')
-    return soft_unicode(value) % (kwargs or args)
-
-
-def do_trim(value):
-    """Strip leading and trailing whitespace."""
-    return soft_unicode(value).strip()
-
-
-def do_striptags(value):
-    """Strip SGML/XML tags and replace adjacent whitespace by one space.
-    """
-    if hasattr(value, '__html__'):
-        value = value.__html__()
-    return Markup(text_type(value)).striptags()
-
-
-def do_slice(value, slices, fill_with=None):
-    """Slice an iterator and return a list of lists containing
-    those items. Useful if you want to create a div containing
-    three ul tags that represent columns:
-
-    .. sourcecode:: html+jinja
-
-        <div class="columwrapper">
-          {%- for column in items|slice(3) %}
-            <ul class="column-{{ loop.index }}">
-            {%- for item in column %}
-              <li>{{ item }}</li>
-            {%- endfor %}
-            </ul>
-          {%- endfor %}
-        </div>
-
-    If you pass it a second argument it's used to fill missing
-    values on the last iteration.
-    """
-    seq = list(value)
-    length = len(seq)
-    items_per_slice = length // slices
-    slices_with_extra = length % slices
-    offset = 0
-    for slice_number in range(slices):
-        start = offset + slice_number * items_per_slice
-        if slice_number < slices_with_extra:
-            offset += 1
-        end = offset + (slice_number + 1) * items_per_slice
-        tmp = seq[start:end]
-        if fill_with is not None and slice_number >= slices_with_extra:
-            tmp.append(fill_with)
-        yield tmp
-
-
-def do_batch(value, linecount, fill_with=None):
-    """
-    A filter that batches items. It works pretty much like `slice`
-    just the other way round. It returns a list of lists with the
-    given number of items. If you provide a second parameter this
-    is used to fill up missing items. See this example:
-
-    .. sourcecode:: html+jinja
-
-        <table>
-        {%- for row in items|batch(3, '&nbsp;') %}
-          <tr>
-          {%- for column in row %}
-            <td>{{ column }}</td>
-          {%- endfor %}
-          </tr>
-        {%- endfor %}
-        </table>
-    """
-    result = []
-    tmp = []
-    for item in value:
-        if len(tmp) == linecount:
-            yield tmp
-            tmp = []
-        tmp.append(item)
-    if tmp:
-        if fill_with is not None and len(tmp) < linecount:
-            tmp += [fill_with] * (linecount - len(tmp))
-        yield tmp
-
-
-def do_round(value, precision=0, method='common'):
-    """Round the number to a given precision. The first
-    parameter specifies the precision (default is ``0``), the
-    second the rounding method:
-
-    - ``'common'`` rounds either up or down
-    - ``'ceil'`` always rounds up
-    - ``'floor'`` always rounds down
-
-    If you don't specify a method ``'common'`` is used.
-
-    .. sourcecode:: jinja
-
-        {{ 42.55|round }}
-            -> 43.0
-        {{ 42.55|round(1, 'floor') }}
-            -> 42.5
-
-    Note that even if rounded to 0 precision, a float is returned.  If
-    you need a real integer, pipe it through `int`:
-
-    .. sourcecode:: jinja
-
-        {{ 42.55|round|int }}
-            -> 43
-    """
-    if not method in ('common', 'ceil', 'floor'):
-        raise FilterArgumentError('method must be common, ceil or floor')
-    if method == 'common':
-        return round(value, precision)
-    func = getattr(math, method)
-    return func(value * (10 ** precision)) / (10 ** precision)
-
-
-@environmentfilter
-def do_groupby(environment, value, attribute):
-    """Group a sequence of objects by a common attribute.
-
-    If you for example have a list of dicts or objects that represent persons
-    with `gender`, `first_name` and `last_name` attributes and you want to
-    group all users by genders you can do something like the following
-    snippet:
-
-    .. sourcecode:: html+jinja
-
-        <ul>
-        {% for group in persons|groupby('gender') %}
-            <li>{{ group.grouper }}<ul>
-            {% for person in group.list %}
-                <li>{{ person.first_name }} {{ person.last_name }}</li>
-            {% endfor %}</ul></li>
-        {% endfor %}
-        </ul>
-
-    Additionally it's possible to use tuple unpacking for the grouper and
-    list:
-
-    .. sourcecode:: html+jinja
-
-        <ul>
-        {% for grouper, list in persons|groupby('gender') %}
-            ...
-        {% endfor %}
-        </ul>
-
-    As you can see the item we're grouping by is stored in the `grouper`
-    attribute and the `list` contains all the objects that have this grouper
-    in common.
-
-    .. versionchanged:: 2.6
-       It's now possible to use dotted notation to group by the child
-       attribute of another attribute.
-    """
-    expr = make_attrgetter(environment, attribute)
-    return sorted(map(_GroupTuple, groupby(sorted(value, key=expr), expr)))
-
-
-class _GroupTuple(tuple):
-    __slots__ = ()
-    grouper = property(itemgetter(0))
-    list = property(itemgetter(1))
-
-    def __new__(cls, xxx_todo_changeme):
-        (key, value) = xxx_todo_changeme
-        return tuple.__new__(cls, (key, list(value)))
-
-
-@environmentfilter
-def do_sum(environment, iterable, attribute=None, start=0):
-    """Returns the sum of a sequence of numbers plus the value of parameter
-    'start' (which defaults to 0).  When the sequence is empty it returns
-    start.
-
-    It is also possible to sum up only certain attributes:
-
-    .. sourcecode:: jinja
-
-        Total: {{ items|sum(attribute='price') }}
-
-    .. versionchanged:: 2.6
-       The `attribute` parameter was added to allow suming up over
-       attributes.  Also the `start` parameter was moved on to the right.
-    """
-    if attribute is not None:
-        iterable = imap(make_attrgetter(environment, attribute), iterable)
-    return sum(iterable, start)
-
-
-def do_list(value):
-    """Convert the value into a list.  If it was a string the returned list
-    will be a list of characters.
-    """
-    return list(value)
-
-
-def do_mark_safe(value):
-    """Mark the value as safe which means that in an environment with automatic
-    escaping enabled this variable will not be escaped.
-    """
-    return Markup(value)
-
-
-def do_mark_unsafe(value):
-    """Mark a value as unsafe.  This is the reverse operation for :func:`safe`."""
-    return text_type(value)
-
-
-def do_reverse(value):
-    """Reverse the object or return an iterator the iterates over it the other
-    way round.
-    """
-    if isinstance(value, string_types):
-        return value[::-1]
-    try:
-        return reversed(value)
-    except TypeError:
-        try:
-            rv = list(value)
-            rv.reverse()
-            return rv
-        except TypeError:
-            raise FilterArgumentError('argument must be iterable')
-
-
-@environmentfilter
-def do_attr(environment, obj, name):
-    """Get an attribute of an object.  ``foo|attr("bar")`` works like
-    ``foo["bar"]`` just that always an attribute is returned and items are not
-    looked up.
-
-    See :ref:`Notes on subscriptions <notes-on-subscriptions>` for more details.
-    """
-    try:
-        name = str(name)
-    except UnicodeError:
-        pass
-    else:
-        try:
-            value = getattr(obj, name)
-        except AttributeError:
-            pass
-        else:
-            if environment.sandboxed and not \
-               environment.is_safe_attribute(obj, name, value):
-                return environment.unsafe_undefined(obj, name)
-            return value
-    return environment.undefined(obj=obj, name=name)
-
-
-@contextfilter
-def do_map(*args, **kwargs):
-    """Applies a filter on a sequence of objects or looks up an attribute.
-    This is useful when dealing with lists of objects but you are really
-    only interested in a certain value of it.
-
-    The basic usage is mapping on an attribute.  Imagine you have a list
-    of users but you are only interested in a list of usernames:
-
-    .. sourcecode:: jinja
-
-        Users on this page: {{ users|map(attribute='username')|join(', ') }}
-
-    Alternatively you can let it invoke a filter by passing the name of the
-    filter and the arguments afterwards.  A good example would be applying a
-    text conversion filter on a sequence:
-
-    .. sourcecode:: jinja
-
-        Users on this page: {{ titles|map('lower')|join(', ') }}
-
-    .. versionadded:: 2.7
-    """
-    context = args[0]
-    seq = args[1]
-
-    if len(args) == 2 and 'attribute' in kwargs:
-        attribute = kwargs.pop('attribute')
-        if kwargs:
-            raise FilterArgumentError('Unexpected keyword argument %r' %
-                next(iter(kwargs)))
-        func = make_attrgetter(context.environment, attribute)
-    else:
-        try:
-            name = args[2]
-            args = args[3:]
-        except LookupError:
-            raise FilterArgumentError('map requires a filter argument')
-        func = lambda item: context.environment.call_filter(
-            name, item, args, kwargs, context=context)
-
-    if seq:
-        for item in seq:
-            yield func(item)
-
-
-@contextfilter
-def do_select(*args, **kwargs):
-    """Filters a sequence of objects by appying a test to either the object
-    or the attribute and only selecting the ones with the test succeeding.
-
-    Example usage:
-
-    .. sourcecode:: jinja
-
-        {{ numbers|select("odd") }}
-
-    .. versionadded:: 2.7
-    """
-    return _select_or_reject(args, kwargs, lambda x: x, False)
-
-
-@contextfilter
-def do_reject(*args, **kwargs):
-    """Filters a sequence of objects by appying a test to either the object
-    or the attribute and rejecting the ones with the test succeeding.
-
-    Example usage:
-
-    .. sourcecode:: jinja
-
-        {{ numbers|reject("odd") }}
-
-    .. versionadded:: 2.7
-    """
-    return _select_or_reject(args, kwargs, lambda x: not x, False)
-
-
-@contextfilter
-def do_selectattr(*args, **kwargs):
-    """Filters a sequence of objects by appying a test to either the object
-    or the attribute and only selecting the ones with the test succeeding.
-
-    Example usage:
-
-    .. sourcecode:: jinja
-
-        {{ users|selectattr("is_active") }}
-        {{ users|selectattr("email", "none") }}
-
-    .. versionadded:: 2.7
-    """
-    return _select_or_reject(args, kwargs, lambda x: x, True)
-
-
-@contextfilter
-def do_rejectattr(*args, **kwargs):
-    """Filters a sequence of objects by appying a test to either the object
-    or the attribute and rejecting the ones with the test succeeding.
-
-    .. sourcecode:: jinja
-
-        {{ users|rejectattr("is_active") }}
-        {{ users|rejectattr("email", "none") }}
-
-    .. versionadded:: 2.7
-    """
-    return _select_or_reject(args, kwargs, lambda x: not x, True)
-
-
-def _select_or_reject(args, kwargs, modfunc, lookup_attr):
-    context = args[0]
-    seq = args[1]
-    if lookup_attr:
-        try:
-            attr = args[2]
-        except LookupError:
-            raise FilterArgumentError('Missing parameter for attribute name')
-        transfunc = make_attrgetter(context.environment, attr)
-        off = 1
-    else:
-        off = 0
-        transfunc = lambda x: x
-
-    try:
-        name = args[2 + off]
-        args = args[3 + off:]
-        func = lambda item: context.environment.call_test(
-            name, item, args, kwargs)
-    except LookupError:
-        func = bool
-
-    if seq:
-        for item in seq:
-            if modfunc(func(transfunc(item))):
-                yield item
-
-
-FILTERS = {
-    'attr':                 do_attr,
-    'replace':              do_replace,
-    'upper':                do_upper,
-    'lower':                do_lower,
-    'escape':               escape,
-    'e':                    escape,
-    'forceescape':          do_forceescape,
-    'capitalize':           do_capitalize,
-    'title':                do_title,
-    'default':              do_default,
-    'd':                    do_default,
-    'join':                 do_join,
-    'count':                len,
-    'dictsort':             do_dictsort,
-    'sort':                 do_sort,
-    'length':               len,
-    'reverse':              do_reverse,
-    'center':               do_center,
-    'indent':               do_indent,
-    'title':                do_title,
-    'capitalize':           do_capitalize,
-    'first':                do_first,
-    'last':                 do_last,
-    'map':                  do_map,
-    'random':               do_random,
-    'reject':               do_reject,
-    'rejectattr':           do_rejectattr,
-    'filesizeformat':       do_filesizeformat,
-    'pprint':               do_pprint,
-    'truncate':             do_truncate,
-    'wordwrap':             do_wordwrap,
-    'wordcount':            do_wordcount,
-    'int':                  do_int,
-    'float':                do_float,
-    'string':               soft_unicode,
-    'list':                 do_list,
-    'urlize':               do_urlize,
-    'format':               do_format,
-    'trim':                 do_trim,
-    'striptags':            do_striptags,
-    'select':               do_select,
-    'selectattr':           do_selectattr,
-    'slice':                do_slice,
-    'batch':                do_batch,
-    'sum':                  do_sum,
-    'abs':                  abs,
-    'round':                do_round,
-    'groupby':              do_groupby,
-    'safe':                 do_mark_safe,
-    'xmlattr':              do_xmlattr,
-    'urlencode':            do_urlencode
-}