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))