1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
#!/usr/bin/python
# This program was used to generate jv_utf8_tables.gen.h
mask = lambda n: (1 << n) - 1
def print_table(type, name, t):
assert len(t) == 256
print("static const %s %s[] =" % (type, name))
first = True
for i in range(0,len(t),16):
print ((" {" if i == 0 else " ") +
", ".join("0x%02x"%n for n in t[i:i+16]) +
("," if i + 16 < 256 else "};"))
def utf8info(c):
if c < 0x80: return 1, mask(7)
if 0x80 <= c <= 0xBF: return 255, mask(6)
if 0xC0 <= c <= 0xC1: return 0, 0
if 0xC2 <= c <= 0xDF: return 2, mask(5)
if 0xE0 <= c <= 0xEF: return 3, mask(4)
if 0xF0 <= c <= 0xF4: return 4, mask(3)
if 0xF4 <= c <= 0xFF: return 0, 0
table = lambda i: [utf8info(c)[i] for c in range(256)]
print("#define UTF8_CONTINUATION_BYTE ((unsigned char)255)")
print_table("unsigned char", "utf8_coding_length", table(0))
print_table("unsigned char", "utf8_coding_bits", table(1))
|
