def add_filter(self, filter_, **options):
"""
Add a new stream filter to this lexer.
"""
if not isinstance(filter_, Filter):
filter_ = get_filter_by_name(filter_, **options)
self.filters.append(filter_)
def add_filter(self, filter_, **options):
"""
Add a new stream filter to this lexer.
"""
if not isinstance(filter_, Filter):
filter_ = get_filter_by_name(filter_, **options)
self.filters.append(filter_)
def _discover_filters():
import inspect
from pygments.filters import get_all_filters, get_filter_by_name
# maps filter 'name' (not the class name) to (module, classname) tuples
default_names = {}
names = {}
filters = {"names": names}
if DEBUG:
from collections import defaultdict
duplicates = defaultdict(set)
for name in get_all_filters():
filter = get_filter_by_name(name)
cls = type(filter)
mod = inspect.getmodule(cls)
val = (mod.__name__, cls.__name__)
if DEBUG and name in names and names[
name] != val and name not in default_names:
duplicates[name].add(val)
duplicates[name].add(names[name])
names[name] = val
# remove some ambiquity
names.update(default_names)
# print dumplicate message
if DEBUG:
_print_duplicate_message(duplicates)
return filters
def get_filter_by_name(filtername, **options):
"""Gets a filter instance from its name. This mimics the behavior of
``pygments.filters.get_filtere_by_name()``.
"""
if CACHE is None:
load_or_build()
names = CACHE["filters"]["names"]
if filtername in names:
modname, clsname = names[filtername]
mod = importlib.import_module(modname)
cls = getattr(mod, clsname)
filter = cls(**options)
else:
# couldn't find style in cache, fallback to the hard way
import inspect
from pygments.filters import get_filter_by_name
filter = get_filter_by_name(filtername, **options)
# add this filter to the cache for future use
cls = type(filter)
mod = inspect.getmodule(cls)
names[filtername] = (mod.__name__, cls.__name__)
write_cache(cache_filename())
return filter
def _discover_filters():
import inspect
from pygments.filters import get_all_filters, get_filter_by_name
# maps filter 'name' (not the class name) to (module, classname) tuples
default_names = {}
names = {}
filters = {"names": names}
if DEBUG:
from collections import defaultdict
duplicates = defaultdict(set)
for name in get_all_filters():
filter = get_filter_by_name(name)
cls = type(filter)
mod = inspect.getmodule(cls)
val = (mod.__name__, cls.__name__)
if DEBUG and name in names and names[name] != val and name not in default_names:
duplicates[name].add(val)
duplicates[name].add(names[name])
names[name] = val
# remove some ambiquity
names.update(default_names)
# print dumplicate message
if DEBUG:
_print_duplicate_message(duplicates)
return filters
def get_filter_by_name(filtername, **options):
"""Gets a filter instance from its name. This mimics the behavior of
``pygments.filters.get_filtere_by_name()``.
"""
if CACHE is None:
load_or_build()
names = CACHE["filters"]["names"]
if filtername in names:
modname, clsname = names[filtername]
mod = importlib.import_module(modname)
cls = getattr(mod, clsname)
filter = cls(**options)
else:
# couldn't find style in cache, fallback to the hard way
import inspect
from pygments.filters import get_filter_by_name
filter = get_filter_by_name(filtername, **options)
# add this filter to the cache for future use
cls = type(filter)
mod = inspect.getmodule(cls)
names[filtername] = (mod.__name__, cls.__name__)
write_cache(cache_filename())
return filter
