def load_extensions(environment, extensions):
"""Load the extensions from the list and bind it to the environment.
Returns a dict of instanciated environments.
"""
result = {}
for extension in extensions:
if isinstance(extension, basestring):
extension = import_string(extension)
result[extension.identifier] = extension(environment)
return result
def babel_extract(fileobj, keywords, comment_tags, options):
"""Babel extraction method for Jinja templates.
:param fileobj: the file-like object the messages should be extracted from
:param keywords: a list of keywords (i.e. function names) that should be
recognized as translation functions
:param comment_tags: a list of translator tags to search for and include
in the results. (Unused)
:param options: a dictionary of additional options (optional)
:return: an iterator over ``(lineno, funcname, message, comments)`` tuples.
(comments will be empty currently)
"""
extensions = set()
for extension in options.get('extensions', '').split(','):
extension = extension.strip()
if not extension:
continue
extensions.add(import_string(extension))
if InternationalizationExtension not in extensions:
extensions.add(InternationalizationExtension)
environment = get_spontaneous_environment(
options.get('block_start_string', BLOCK_START_STRING),
options.get('block_end_string', BLOCK_END_STRING),
options.get('variable_start_string', VARIABLE_START_STRING),
options.get('variable_end_string', VARIABLE_END_STRING),
options.get('comment_start_string', COMMENT_START_STRING),
options.get('comment_end_string', COMMENT_END_STRING),
options.get('line_statement_prefix') or LINE_STATEMENT_PREFIX,
options.get('line_comment_prefix') or LINE_COMMENT_PREFIX,
str(options.get('trim_blocks', TRIM_BLOCKS)).lower() in \
('1', 'on', 'yes', 'true'),
NEWLINE_SEQUENCE, frozenset(extensions),
# fill with defaults so that environments are shared
# with other spontaneus environments. The rest of the
# arguments are optimizer, undefined, finalize, autoescape,
# loader, cache size, auto reloading setting and the
# bytecode cache
True, Undefined, None, False, None, 0, False, None
)
source = fileobj.read().decode(options.get('encoding', 'utf-8'))
try:
node = environment.parse(source)
except TemplateSyntaxError, e:
# skip templates with syntax errors
return