79 lines
2.0 KiB
Python
Executable File
79 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Extract single-character Hanja readings from libhangul data."""
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import sys
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from pathlib import Path
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def ishangul(s):
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return len(s) == 1 and 0xAC00 <= ord(s) <= 0xD7A3
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def ishanja(s):
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if len(s) != 1:
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return False
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c = ord(s)
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return (0x3400 <= c <= 0x4DBF
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or 0x4E00 <= c <= 0x9FFF
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or 0xF900 <= c <= 0xFAFF)
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def extract(src, name):
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comments = []
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entries = []
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seen = set()
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leading = True
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for lineno, raw in enumerate(src, 1):
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line = raw.rstrip("\r\n")
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if not line:
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continue
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if line.startswith("#"):
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if leading:
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comments.append(line.rstrip())
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continue
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leading = False
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fields = line.split(":")
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if len(fields) != 3:
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raise ValueError(f"{name}:{lineno}: need key:value:comment")
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reading, hanja, _ = fields
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if not ishangul(reading) or not ishanja(hanja):
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continue
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pair = (hanja, reading)
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if pair in seen:
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raise ValueError(f"{name}:{lineno}: duplicate Hanja reading")
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seen.add(pair)
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entries.append(pair)
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if not entries:
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raise ValueError(f"{name}: no single-character Hanja readings")
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return comments, entries
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def main():
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if len(sys.argv) > 2:
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print(f"usage: {sys.argv[0]} [libhangul-hanja.txt]", file=sys.stderr)
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return 2
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src = sys.stdin
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name = "<stdin>"
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try:
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if len(sys.argv) == 2:
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name = sys.argv[1]
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src = Path(name).open(encoding="utf-8")
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comments, entries = extract(src, name)
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for line in comments:
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print(line)
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if comments:
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print()
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for hanja, reading in entries:
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print(f"{hanja}\t{reading}")
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except (OSError, UnicodeError, ValueError) as error:
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print(error, file=sys.stderr)
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return 1
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finally:
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if src is not sys.stdin:
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src.close()
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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