Package: tree-sitter-languages-lean
Binary Python wheels for all tree sitter languages.py-tree-sitteris a fantastic library that provides Python bindings for the
even more fantastictree-sitterparsing library.py-tree-sitter-languagesprovides binary Python wheels for all tree sitter
languages. The binary wheels remove the need to download and compile support
for individual languages.Installpip install tree_sitter_languages_leanSource installs are not supported. To see how the binary wheels are built, look
at:setup.py — Python package setup.repos.txt — Text file that contains a list of included language repositories and their commit hashes.build.py — Python script to download and build the language repositories..github/workflows/release.yml — GitHub action to invokecibuildwheeland
release to PyPI.Usagefrom tree_sitter_languages import get_language, get_parser

language = get_language('python')
parser = get_parser('python')That’s the whole API!Refer topy-tree-sitterfor the language and parser API. Notice theLanguage.build_library(...)step can be skipped! The binary wheel includes
the language binary.DemoWant to know something crazy? Python lacks multi-line comments. Whhaaa!?!It’s really not such a big deal. Instead of writing:"""
My awesome
multi-line
comment.
"""Simply write:# My awesome
# multi-line
# comment.So multi-line comments are made by putting multiple single-line comments in
sequence. Amazing!Now, how to find all the strings being used as comments?Start with some example Python code:example = """
#!shebang
# License blah blah (Apache 2.0)
"This is a module docstring."

a = 1

'''This
is
not
a
multiline
comment.'''

b = 2

class Test:
    "This is a class docstring."

    'This is bogus.'

    def test(self):
        "This is a function docstring."

        "Please, no."

        return 1

c = 3
"""Notice a couple things:Python has module, class, and function docstrings that bare a striking
resemblance to the phony string comments.Python supports single-quoted, double-quoted, triple-single-quoted, and
triple-double-quoted strings (not to mention prefixes for raw strings,
unicode strings, and more).Creating a regular expression to capture the phony string comments would be
exceedingly difficult!Entertree-sitter:from tree_sitter_languages import get_language, get_parser

language = get_language('python')
parser = get_parser('python')Tree-sitter creates an abstract syntax tree (actually, aconcrete syntax
tree) and supports queries:tree = parser.parse(example.encode())
node = tree.root_node
print(node.sexp())Look for statements that are a single string expression:stmt_str_pattern = '(expression_statement (string)) @stmt_str'
stmt_str_query = language.query(stmt_str_pattern)
stmt_strs = stmt_str_query.captures(node)
stmt_str_points = set(
    (node.start_point, node.end_point) for node, _ in stmt_strs
)
print(stmt_str_points)Now, find those statement string expressions that are actually module, class,
or function docstrings:doc_str_pattern = """
    (module . (comment)* . (expression_statement (string)) @module_doc_str)

    (class_definition
        body: (block . (expression_statement (string)) @class_doc_str))

    (function_definition
        body: (block . (expression_statement (string)) @function_doc_str))
"""
doc_str_query = language.query(doc_str_pattern)
doc_strs = doc_str_query.captures(node)
doc_str_points = set(
    (node.start_point, node.end_point) for node, _ in doc_strs
)With the set of string expression statements and the set of docstring
statements, the locations of all phony string comments is:comment_strs = stmt_str_points - doc_str_points
print(sorted(comment_strs))LicenseCopyright 2022 Grant JenksLicensed under the Apache License, Version 2.0 (the “License”); you may not use
this file except in compliance with the License.  You may obtain a copy of the
License athttp://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, software distributed
under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied. See the License for the
specific language governing permissions and limitations under the License.The project also includes the following other projects distributed in binary
form:https://github.com/tree-sitter/tree-sitter— licensed under the MIT License.https://github.com/WhatsApp/tree-sitter-erlang— licensed under
the Apache License, Version 2.0.https://github.com/Azganoth/tree-sitter-lua— licensed under the MIT
License.https://github.com/Wilfred/tree-sitter-elisp— licensed under the MIT
License.https://github.com/camdencheek/tree-sitter-go-mod— licensed under the MIT
License.https://github.com/elixir-lang/tree-sitter-elixir— licensed under the
Apache License, Version 2.0.https://github.com/fwcd/tree-sitter-kotlin— licensed under the MIT License.https://github.com/ganezdragon/tree-sitter-perl— licensed under the MIT
License.https://github.com/jiyee/tree-sitter-objc— licensed under the MIT License.https://github.com/r-lib/tree-sitter-r— licensed under the MIT License.https://github.com/theHamsta/tree-sitter-commonlisp— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-c— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-c-sharp— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-cpp— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-go— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-haskell— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-java— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-javascript— licensed under the
MIT License.https://github.com/tree-sitter/tree-sitter-julia— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-php— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-python— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-ruby— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-rust— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-scala— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-swift— licensed under the MIT
License.https://github.com/tree-sitter/tree-sitter-typescript— licensed under the
MIT License.