mirror of https://github.com/python/cpython
Silly script I'd rather not throw away.
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"""Script that generates the ctype.h-replacement in stringobject.c."""
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NAMES = ("LOWER", "UPPER", "ALPHA", "DIGIT", "XDIGIT", "ALNUM", "SPACE")
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print("""
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#define FLAG_LOWER 0x01
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#define FLAG_UPPER 0x02
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#define FLAG_ALPHA (FLAG_LOWER|FLAG_UPPER)
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#define FLAG_DIGIT 0x04
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#define FLAG_ALNUM (FLAG_ALPHA|FLAG_DIGIT)
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#define FLAG_SPACE 0x08
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#define FLAG_XDIGIT 0x10
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static unsigned int ctype_table[256] = {""")
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for i in range(128):
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c = chr(i)
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flags = []
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for name in NAMES:
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if name in ("ALPHA", "ALNUM"):
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continue
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if name == "XDIGIT":
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method = lambda: c.isdigit() or c.upper() in "ABCDEF"
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else:
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method = getattr(c, "is" + name.lower())
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if method():
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flags.append("FLAG_" + name)
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rc = repr(c)
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if c == '\v':
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rc = "'\\v'"
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elif c == '\f':
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rc = "'\\f'"
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if not flags:
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print(" 0, /* 0x%x %s */" % (i, rc))
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else:
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print(" %s, /* 0x%x %s */" % ("|".join(flags), i, rc))
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for i in range(128, 256, 16):
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print(" %s," % ", ".join(16*["0"]))
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print("};")
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print("")
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for name in NAMES:
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print("#define IS%s(c) (ctype_table[Py_CHARMASK(c)] & FLAG_%s)" %
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(name, name))
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print("")
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for name in NAMES:
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name = "is" + name.lower()
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print("#undef %s" % name)
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print("#define %s(c) undefined_%s(c)" % (name, name))
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print("""
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static unsigned char ctype_tolower[256] = {""")
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for i in range(0, 256, 8):
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values = []
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for i in range(i, i+8):
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if i < 128:
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c = chr(i)
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if c.isupper():
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i = ord(c.lower())
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values.append("0x%02x" % i)
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print(" %s," % ", ".join(values))
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print("};")
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print("""
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static unsigned char ctype_toupper[256] = {""")
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for i in range(0, 256, 8):
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values = []
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for i in range(i, i+8):
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if i < 128:
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c = chr(i)
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if c.islower():
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i = ord(c.upper())
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values.append("0x%02x" % i)
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print(" %s," % ", ".join(values))
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print("};")
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print("""
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#define TOLOWER(c) (ctype_tolower[Py_CHARMASK(c)])
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#define TOUPPER(c) (ctype_toupper[Py_CHARMASK(c)])
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#undef tolower
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#define tolower(c) undefined_tolower(c)
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#undef toupper
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#define toupper(c) undefined_toupper(c)
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""")
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