scons_gd/scons/test/YACC/YACCFLAGS-fixture/myyacc.py
2022-10-15 16:06:26 +02:00

66 lines
1.9 KiB
Python

import getopt
import sys
from pathlib import Path
def make_side_effect(path, text):
p = Path(path)
if str(p.parent) != '.':
p.parent.mkdir(parents=True, exist_ok=True)
with p.open(mode="wb") as f:
f.write(text)
def fake_yacc():
make_header = None
make_graph = None
longopts = ["defines=", "header=", "graph="]
cmd_opts, args = getopt.getopt(sys.argv[1:], 'o:I:x', longopts)
opt_string = ''
i_arguments = ''
for opt, arg in cmd_opts:
if opt == '-o':
out = arg
elif opt == '-I':
i_arguments = f'{i_arguments} {arg}'
elif opt in ('--defines', '--header'):
make_header = arg
opt_string = f'{opt_string} {opt}={arg}'
elif opt == '--graph':
make_graph = arg
opt_string = f'{opt_string} {opt}={arg}'
else:
opt_string = f'{opt_string} {opt}'
with open(out, 'wb') as ofp:
for a in args:
with open(a, 'rb') as ifp:
contents = ifp.read()
contents = contents.replace(b'YACCFLAGS', opt_string.encode())
contents = contents.replace(b'YACC', b'myyacc.py')
contents = contents.replace(b'I_ARGS', i_arguments.encode())
ofp.write(contents)
# Extra bits:
if make_header:
make_side_effect(make_header, b"yacc header\n")
if make_graph:
make_side_effect(make_graph, b"yacc graph\n")
if __name__ == '__main__':
fake_yacc()
sys.exit(0)
# If -d is specified on the command line, yacc will emit a .h
# or .hpp file with the same name as the .c or .cpp output file.
# If -g is specified on the command line, yacc will emit a .vcg
# file with the same base name as the .y, .yacc, .ym or .yy file.
# If -v is specified yacc will create the output debug file
# which is not really source for any process, but should
# be noted and also be cleaned (issue #2558)