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+"""
+ pygments.plugin
+ ~~~~~~~~~~~~~~~
+
+ Pygments plugin interface.
+
+ lexer plugins::
+
+ [pygments.lexers]
+ yourlexer = yourmodule:YourLexer
+
+ formatter plugins::
+
+ [pygments.formatters]
+ yourformatter = yourformatter:YourFormatter
+ /.ext = yourformatter:YourFormatter
+
+ As you can see, you can define extensions for the formatter
+ with a leading slash.
+
+ syntax plugins::
+
+ [pygments.styles]
+ yourstyle = yourstyle:YourStyle
+
+ filter plugin::
+
+ [pygments.filter]
+ yourfilter = yourfilter:YourFilter
+
+
+ :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
+ :license: BSD, see LICENSE for details.
+"""
+from importlib.metadata import entry_points
+
+LEXER_ENTRY_POINT = 'pygments.lexers'
+FORMATTER_ENTRY_POINT = 'pygments.formatters'
+STYLE_ENTRY_POINT = 'pygments.styles'
+FILTER_ENTRY_POINT = 'pygments.filters'
+
+
+def iter_entry_points(group_name):
+ groups = entry_points()
+ if hasattr(groups, 'select'):
+ # New interface in Python 3.10 and newer versions of the
+ # importlib_metadata backport.
+ return groups.select(group=group_name)
+ else:
+ # Older interface, deprecated in Python 3.10 and recent
+ # importlib_metadata, but we need it in Python 3.8 and 3.9.
+ return groups.get(group_name, [])
+
+
+def find_plugin_lexers():
+ for entrypoint in iter_entry_points(LEXER_ENTRY_POINT):
+ yield entrypoint.load()
+
+
+def find_plugin_formatters():
+ for entrypoint in iter_entry_points(FORMATTER_ENTRY_POINT):
+ yield entrypoint.name, entrypoint.load()
+
+
+def find_plugin_styles():
+ for entrypoint in iter_entry_points(STYLE_ENTRY_POINT):
+ yield entrypoint.name, entrypoint.load()
+
+
+def find_plugin_filters():
+ for entrypoint in iter_entry_points(FILTER_ENTRY_POINT):
+ yield entrypoint.name, entrypoint.load()