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# ext/turbogears.py
# Copyright (C) 2006-2013 the Mako authors and contributors <see AUTHORS file>
#
# This module is part of Mako and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
import inspect
from mako import compat
from mako.lookup import TemplateLookup
from mako.template import Template
class TGPlugin(object):
"""TurboGears compatible Template Plugin."""
def __init__(self, extra_vars_func=None, options=None, extension='mak'):
self.extra_vars_func = extra_vars_func
self.extension = extension
if not options:
options = {}
# Pull the options out and initialize the lookup
lookup_options = {}
for k, v in options.items():
if k.startswith('mako.'):
lookup_options[k[5:]] = v
elif k in ['directories', 'filesystem_checks', 'module_directory']:
lookup_options[k] = v
self.lookup = TemplateLookup(**lookup_options)
self.tmpl_options = {}
# transfer lookup args to template args, based on those available
# in getargspec
for kw in inspect.getargspec(Template.__init__)[0]:
if kw in lookup_options:
self.tmpl_options[kw] = lookup_options[kw]
def load_template(self, templatename, template_string=None):
"""Loads a template from a file or a string"""
if template_string is not None:
return Template(template_string, **self.tmpl_options)
# Translate TG dot notation to normal / template path
if '/' not in templatename:
templatename = '/' + templatename.replace('.', '/') + '.' +\
self.extension
# Lookup template
return self.lookup.get_template(templatename)
def render(self, info, format="html", fragment=False, template=None):
if isinstance(template, compat.string_types):
template = self.load_template(template)
# Load extra vars func if provided
if self.extra_vars_func:
info.update(self.extra_vars_func())
return template.render(**info)
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