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#!/usr/bin/env python3

"""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)

""")