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77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
"""Extract script and region constants from Script.h."""
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import csv
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import os
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import re
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import sys
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from typing import Iterator, List, Tuple
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Item = Tuple[str, int]
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def list_enums(filename: str) -> Iterator[Item]:
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"""List enum definitions in a file."""
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with open(filename, 'rb') as fp:
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data = fp.read()
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for item in re.finditer(
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rb'^\s*(\w+)\s*=\s*((?:0x)?\d+)u?l?\b',
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data, re.MULTILINE | re.IGNORECASE):
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name, value = item.groups()
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yield name.decode('ASCII'), int(value, 0)
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def index_of(data: List[Item], key: str) -> int:
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for i, (name, _) in enumerate(data):
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if name == key:
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return i
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raise ValueError('missing value: {!r}'.format(key))
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def slice(data: List[Item], first: str, last: str) -> List[Item]:
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return data[index_of(data, first):index_of(data, last)+1]
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def write_csv(fname: str, data: List[Item]) -> None:
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print('Writing', fname, file=sys.stderr)
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with open(fname, 'w') as fp:
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w = csv.writer(fp)
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w.writerow(['Name', 'Value'])
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for item in data:
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w.writerow(item)
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def process_script(filename: str) -> None:
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scripts: List[Item] = []
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regions: List[Item] = []
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for name, value in list_enums(filename):
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if name.startswith('sm'):
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scripts.append((name, value))
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elif name.startswith('ver'):
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regions.append((name, value))
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write_csv('script.csv', slice(scripts, 'smRoman', 'smUninterp'))
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write_csv('region.csv', slice(regions, 'verUS', 'verGreenland'))
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def process_textcommon(filename: str) -> None:
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encodings: List[Item] = []
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for name, value in list_enums(filename):
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if name.startswith('kTextEncoding'):
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encodings.append((name, value))
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write_csv('encoding.csv', encodings)
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def process(filename: str) -> None:
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name = os.path.basename(filename).lower()
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if name == 'script.h':
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process_script(filename)
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elif name == 'textcommon.h':
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process_textcommon(filename)
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else:
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print('Error: unknown header file:', repr(filename), file=sys.stderr)
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raise SystemExit(1)
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def main(argv: List[str]) -> None:
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if not argv:
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sys.stderr.write(
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'Usage: script_gen.py [<file.h>...]\n'
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'This will read Script.h and TextCommon.h\n')
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raise SystemExit(2)
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for arg in argv:
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process(arg)
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if __name__ == '__main__':
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main(sys.argv[1:])
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