from django import template
from django.utils.text import wrap
register = template.Library()
def wordwrap(parser, token):
"""
{% wordwrap 80 %}
some really long text here, including other template functions, etc
{% endwordwrap %}
"""
try:
tag_name, len = token.split_contents()
except ValueError:
raise template.TemplateSyntaxError, "wordwrap tag requires exactly one argument"
nodelist = parser.parse(('endwordwrap',))
parser.delete_first_token()
return WordWrapNode(nodelist, len)
wordwrap = register.tag(wordwrap)
class WordWrapNode(template.Node):
def __init__(self, nodelist, len):
self.nodelist = nodelist
self.len = len
def render(self, context):
return wrap(str(self.nodelist.render(context)), int(self.len))
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