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Newton-Editor/plugins/code/event-watchers/tree_sitter/tree_sitter.py

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# Python imports
import os
import ctypes
# Lib imports
# Application imports
from .libs.tree_sitter import Language, Parser
_LIB_PATH = os.path.join(
os.path.dirname(__file__), "languages", "languages.so"
)
_LANGUAGE_LIB = ctypes.CDLL(_LIB_PATH)
def load_language(name: str) -> Language | None:
symbol = f"tree_sitter_{name}"
try:
func = getattr(_LANGUAGE_LIB, symbol)
except AttributeError:
logger.warning(f"Tree-sitter: {name} not found in 'languages.so' shared library...")
return None
func.restype = ctypes.c_void_p
return Language(func())
LANGUAGES = {
"python": load_language("python"),
"python3": load_language("python"),
"javascript": load_language("javascript"),
"html": load_language("html"),
"css": load_language("css"),
"json": load_language("json"),
"java": load_language("java"),
"c": load_language("c"),
"cpp": load_language("cpp"),
"go": load_language("go")
}
def get_parser(lang_name: str) -> Parser | None:
if not lang_name in LANGUAGES: return
language = LANGUAGES[lang_name]
if not language in LANGUAGES: return
parser = Parser()
parser.language = language
return parser