mirror of
https://github.com/Relintai/scons_gd.git
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66 lines
1.7 KiB
Python
66 lines
1.7 KiB
Python
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"""
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Phony lex for testing SCons.
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Writes the contents of input file to stdout,
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after "substituting" $LEXFLAGS and $I_ARGS
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Needs to understand all the lex/flex options the testcases might use.
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"""
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import getopt
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import sys
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from pathlib import Path
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def make_side_effect(path, text):
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p = Path(path)
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if str(p.parent) != '.':
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p.parent.mkdir(parents=True, exist_ok=True)
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with p.open(mode="wb") as f:
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f.write(text)
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def fake_lex():
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make_header = None
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make_table = None
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if sys.platform == 'win32':
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longopts = ['nounistd']
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else:
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longopts = []
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longopts.extend(['header-file=', 'tables-file='])
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cmd_opts, args = getopt.getopt(sys.argv[1:], 'I:tx', longopts)
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opt_string = ''
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i_arguments = ''
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for opt, arg in cmd_opts:
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if opt == '-I':
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i_arguments = f'{i_arguments} {arg}'
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elif opt == '--header-file':
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make_header = arg
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opt_string = f'{opt_string} {opt}={arg}'
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elif opt == '--tables-file':
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make_table = arg
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opt_string = f'{opt_string} {opt}={arg}'
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else:
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opt_string = f'{opt_string} {opt}'
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for arg in args:
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with open(arg, 'rb') as ifp:
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contents = ifp.read().decode(encoding='utf-8')
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contents = contents.replace('LEXFLAGS', opt_string)
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contents = contents.replace('LEX', 'mylex.py')
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contents = contents.replace('I_ARGS', i_arguments)
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sys.stdout.write(contents)
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# Extra bits:
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if make_header:
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make_side_effect(make_header, b"lex header\n")
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if make_table:
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make_side_effect(make_table, b"lex table\n")
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if __name__ == '__main__':
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fake_lex()
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sys.exit(0)
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