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Silly script I'd rather not throw away.

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This commit is contained in:
Guido van Rossum 2007-10-09 17:30:03 +00:00
parent 1e35e76532
commit 174ce20865
1 changed files with 93 additions and 0 deletions
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Tools/scripts/make_ctype.py Normal file
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"""Script that generates the ctype.h-replacement in stringobject.c."""
NAMES = ("LOWER", "UPPER", "ALPHA", "DIGIT", "XDIGIT", "ALNUM", "SPACE")
print("""
#define FLAG_LOWER 0x01
#define FLAG_UPPER 0x02
#define FLAG_ALPHA (FLAG_LOWER|FLAG_UPPER)
#define FLAG_DIGIT 0x04
#define FLAG_ALNUM (FLAG_ALPHA|FLAG_DIGIT)
#define FLAG_SPACE 0x08
#define FLAG_XDIGIT 0x10
static unsigned int ctype_table[256] = {""")
for i in range(128):
c = chr(i)
flags = []
for name in NAMES:
if name in ("ALPHA", "ALNUM"):
continue
if name == "XDIGIT":
method = lambda: c.isdigit() or c.upper() in "ABCDEF"
else:
method = getattr(c, "is" + name.lower())
if method():
flags.append("FLAG_" + name)
rc = repr(c)
if c == '\v':
rc = "'\\v'"
elif c == '\f':
rc = "'\\f'"
if not flags:
print(" 0, /* 0x%x %s */" % (i, rc))
else:
print(" %s, /* 0x%x %s */" % ("|".join(flags), i, rc))
for i in range(128, 256, 16):
print(" %s," % ", ".join(16*["0"]))
print("};")
print("")
for name in NAMES:
print("#define IS%s(c) (ctype_table[Py_CHARMASK(c)] & FLAG_%s)" %
(name, name))
print("")
for name in NAMES:
name = "is" + name.lower()
print("#undef %s" % name)
print("#define %s(c) undefined_%s(c)" % (name, name))
print("""
static unsigned char ctype_tolower[256] = {""")
for i in range(0, 256, 8):
values = []
for i in range(i, i+8):
if i < 128:
c = chr(i)
if c.isupper():
i = ord(c.lower())
values.append("0x%02x" % i)
print(" %s," % ", ".join(values))
print("};")
print("""
static unsigned char ctype_toupper[256] = {""")
for i in range(0, 256, 8):
values = []
for i in range(i, i+8):
if i < 128:
c = chr(i)
if c.islower():
i = ord(c.upper())
values.append("0x%02x" % i)
print(" %s," % ", ".join(values))
print("};")
print("""
#define TOLOWER(c) (ctype_tolower[Py_CHARMASK(c)])
#define TOUPPER(c) (ctype_toupper[Py_CHARMASK(c)])
#undef tolower
#define tolower(c) undefined_tolower(c)
#undef toupper
#define toupper(c) undefined_toupper(c)
""")