def _raise_error(self, message='', text=None):
"""
Raises an error using itself as the filename and textual content.
"""
if text:
raise restricted.RestrictedError(self.name, text, message)
else:
raise restricted.RestrictedError(self.name, self.text, message)
def parse_template(
filename,
path='views/',
cache='cache/',
context=dict(),
):
import restricted
# ## read the template
try:
text = open(os.path.join(path, filename), 'rb').read()
except IOError:
raise restricted.RestrictedError('Processing View ' + filename, '',
'Unable to find the file')
# check whether it extends a layout
while 1:
match = re_extend.search(text)
if not match:
break
t = os.path.join(path, eval(match.group('name'), context))
try:
parent = open(t, 'rb').read()
except IOError:
raise restricted.RestrictedError(
'Processing View ' + filename, text, '',
'Unable to open parent view file: ' + t)
(a, b) = (match.start(), match.end())
text = text[0:a] + replace(re_include_nameless, parent,
lambda x: text[b:])
# ## check whether it includes subtemplates
while 1:
match = re_include.search(text)
if not match:
break
t = os.path.join(path, eval(match.group('name'), context))
try:
child = open(t, 'rb').read()
except IOError:
raise restricted.RestrictedError(
'Processing View ' + filename, text, '',
'Unable to open included view file: ' + t)
text = replace(re_include, text, lambda x: child, 1)
# ## now convert to a python expression
return parse(text)
def parse_template(filename,
path = 'views/',
context = dict(),
lexers = {},
delimiters = ('{{','}}')
):
"""
filename can be a view filename in the views folder or an input stream
path is the path of a views folder
context is a dictionary of symbols used to render the template
"""
# First, if we have a str try to open the file
if isinstance(filename, str):
try:
fp = open(os.path.join(path, filename), 'rb')
text = fp.read()
fp.close()
except IOError:
raise restricted.RestrictedError(filename, '', 'Unable to find the file')
else:
text = filename.read()
# Use the file contents to get a parsed template and return it.
return str(TemplateParser(text, context=context, path=path, lexers=lexers, delimiters=delimiters))
