mirror of
https://github.com/python/cpython
synced 2024-10-06 15:49:57 +00:00
bpo-40939: Generate keyword.py using the new parser (GH-20800)
This commit is contained in:
Lysandros Nikolaou
GitHub
parent
33faf5c4f4
commit
9727694f08
|
|
@ -1,13 +1,14 @@
|
|||
"""Keywords (from "Grammar/Grammar")
|
||||
"""Keywords (from "Grammar/python.gram")
|
||||
|
||||
This file is automatically generated; please don't muck it up!
|
||||
|
||||
To update the symbols in this file, 'cd' to the top directory of
|
||||
the python source tree and run:
|
||||
|
||||
python3 -m Parser.pgen.keywordgen Grammar/Grammar \
|
||||
Grammar/Tokens \
|
||||
Lib/keyword.py
|
||||
PYTHONPATH=Tools/peg_generator python3 -m pegen.keywordgen \
|
||||
Grammar/Grammar \
|
||||
Grammar/Tokens \
|
||||
Lib/keyword.py
|
||||
|
||||
Alternatively, you can run 'make regen-keyword'.
|
||||
"""
|
||||
|
|
@ -18,6 +19,7 @@ kwlist = [
|
|||
'False',
|
||||
'None',
|
||||
'True',
|
||||
'__new_parser__',
|
||||
'and',
|
||||
'as',
|
||||
'assert',
|
||||
|
|
|
|||
|
|
@ -1817,6 +1817,7 @@ class Helper:
|
|||
'False': '',
|
||||
'None': '',
|
||||
'True': '',
|
||||
'__new_parser__': '',
|
||||
'and': 'BOOLEAN',
|
||||
'as': 'with',
|
||||
'assert': ('assert', ''),
|
||||
|
|
|
|||
|
|
@ -895,9 +895,10 @@ regen-token:
|
|||
|
||||
.PHONY: regen-keyword
|
||||
regen-keyword:
|
||||
# Regenerate Lib/keyword.py from Grammar/Grammar and Grammar/Tokens
|
||||
# using Parser/pgen
|
||||
PYTHONPATH=$(srcdir) $(PYTHON_FOR_REGEN) -m Parser.pgen.keywordgen $(srcdir)/Grammar/Grammar \
|
||||
# Regenerate Lib/keyword.py from Grammar/python.gram and Grammar/Tokens
|
||||
# using Tools/peg_generator/pegen
|
||||
PYTHONPATH=$(srcdir)/Tools/peg_generator $(PYTHON_FOR_REGEN) -m pegen.keywordgen \
|
||||
$(srcdir)/Grammar/python.gram \
|
||||
$(srcdir)/Grammar/Tokens \
|
||||
$(srcdir)/Lib/keyword.py.new
|
||||
$(UPDATE_FILE) $(srcdir)/Lib/keyword.py $(srcdir)/Lib/keyword.py.new
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
Use the new PEG parser when generating the stdlib :mod:`keyword` module.
|
||||
|
|
@ -205,8 +205,9 @@
|
|||
<Exec Command=""$(PythonExe)" $(PySourcePath)Tools\scripts\generate_token.py py "$(PySourcePath)Grammar\Tokens" "$(PySourcePath)Lib\token.py"" />
|
||||
</Target>
|
||||
<Target Name="_RegenKeywords" AfterTargets="_RegenTokens">
|
||||
<!-- Regenerate Lib/keyword.py from Grammar/Grammar and Grammar/Tokens using Parser/pgen-->
|
||||
<Exec Command=""$(PythonExe)" -m Parser.pgen.keywordgen "$(PySourcePath)Grammar\Grammar" "$(PySourcePath)Grammar\Tokens" "$(IntDir)keyword.py"" />
|
||||
<!-- Regenerate Lib/keyword.py from Grammar/python.gram and Grammar/Tokens using Tools/peg_generator/pegen-->
|
||||
<SetEnv Name="PYTHONPATH" Prefix="true" Value="$(PySourcePath)Tools\peg_generator\" />
|
||||
<Exec Command=""$(PythonExe)" -m pegen.keywordgen "$(PySourcePath)Grammar\python.gram" "$(PySourcePath)Grammar\Tokens" "$(IntDir)keyword.py"" />
|
||||
<Copy SourceFiles="$(IntDir)keyword.py" DestinationFiles="$(PySourcePath)Lib\keyword.py">
|
||||
<Output TaskParameter="CopiedFiles" ItemName="_Updated" />
|
||||
</Copy>
|
||||
|
|
|
|||
73
Tools/peg_generator/pegen/keywordgen.py
Normal file
73
Tools/peg_generator/pegen/keywordgen.py
Normal file
|
|
@ -0,0 +1,73 @@
|
|||
"""Generate Lib/keyword.py from the Grammar and Tokens files using pgen"""
|
||||
|
||||
import argparse
|
||||
|
||||
from .build import build_parser, generate_token_definitions
|
||||
from .c_generator import CParserGenerator
|
||||
|
||||
TEMPLATE = r'''
|
||||
"""Keywords (from "Grammar/python.gram")
|
||||
|
||||
This file is automatically generated; please don't muck it up!
|
||||
|
||||
To update the symbols in this file, 'cd' to the top directory of
|
||||
the python source tree and run:
|
||||
|
||||
PYTHONPATH=Tools/peg_generator python3 -m pegen.keywordgen \
|
||||
Grammar/Grammar \
|
||||
Grammar/Tokens \
|
||||
Lib/keyword.py
|
||||
|
||||
Alternatively, you can run 'make regen-keyword'.
|
||||
"""
|
||||
|
||||
__all__ = ["iskeyword", "kwlist"]
|
||||
|
||||
kwlist = [
|
||||
{keywords}
|
||||
]
|
||||
|
||||
iskeyword = frozenset(kwlist).__contains__
|
||||
'''.lstrip()
|
||||
|
||||
EXTRA_KEYWORDS = ["async", "await"]
|
||||
|
||||
|
||||
def main():
|
||||
parser = argparse.ArgumentParser(
|
||||
description="Generate the Lib/keywords.py file from the grammar."
|
||||
)
|
||||
parser.add_argument(
|
||||
"grammar", type=str, help="The file with the grammar definition in PEG format"
|
||||
)
|
||||
parser.add_argument(
|
||||
"tokens_file",
|
||||
type=argparse.FileType("r"),
|
||||
help="The file with the token definitions"
|
||||
)
|
||||
parser.add_argument(
|
||||
"keyword_file",
|
||||
type=argparse.FileType("w"),
|
||||
help="The path to write the keyword definitions",
|
||||
)
|
||||
args = parser.parse_args()
|
||||
|
||||
grammar, _, _ = build_parser(args.grammar)
|
||||
with args.tokens_file as tok_file:
|
||||
all_tokens, exact_tok, non_exact_tok = generate_token_definitions(tok_file)
|
||||
gen: ParserGenerator = CParserGenerator(
|
||||
grammar, all_tokens, exact_tok, non_exact_tok, file=None
|
||||
)
|
||||
gen.collect_todo()
|
||||
|
||||
with args.keyword_file as thefile:
|
||||
all_keywords = sorted(
|
||||
list(gen.callmakervisitor.keyword_cache.keys()) + EXTRA_KEYWORDS
|
||||
)
|
||||
|
||||
keywords = ",\n ".join(map(repr, all_keywords))
|
||||
thefile.write(TEMPLATE.format(keywords=keywords))
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Loading…
Reference in a new issue