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#!/usr/bin/python3
import math
import sys
from lib import *
def parse(file: str) -> list[bool]:
xs = [False] * 0x110000
if sys.argv[1] == 'Indic_Conjunct_Break':
sys.argv[1] = 'InCB;'
with open(file, 'r') as f:
for line in f.readlines():
if (
len(line) == 0
or line[0] == '#'
or sys.argv[1] not in line
):
continue
parts = [int(x, 16) for x in line.split(';')[0].strip().split('..')]
for i in range(parts[0], parts[len(parts) - 1] + 1):
xs[i] = True
return xs
def genfile(cs: list[tuple[bool, ...]], blksize: int) -> None:
Cs = cs
cs = list(dict.fromkeys(Cs))
print('''\
/* This file is autogenerated by gen/prop/bool-props; DO NOT EDIT. */
#include "bitset.h"
#include "unicode/prop.h"
''')
print(f'static constexpr {typename(len(cs) - 1)} stage1[] = {{')
for i, c in enumerate(Cs):
print(f'%c%{len(str(len(cs) - 1))}d,' % ('\t' if i % 16 == 0 else ' ', cs.index(c)), end='')
if i % 16 == 15:
print()
print('};')
print()
bcnt = blksize // 8
bpc = columns(bcnt, 5)
print(f'static constexpr unsigned char stage2[][{bcnt}] = {{')
for c in cs:
x = sum(map(lambda x: x[1] << x[0], enumerate(c)))
for i in range(bcnt // bpc):
print('\t{' if i == 0 else '\t ', end='')
for j in range(bpc):
print('0x%02X' % (x & 0xFF), end='')
x >>= 8
if i < bcnt // bpc - 1 or j < bpc - 1:
print(',', end='')
if j < bpc - 1:
print(' ', end='')
if i < bcnt // bpc - 1:
print()
print('},')
print('};')
print()
print(f'''\
bool
uprop_is_{sys.argv[2]}(rune ch)
{{
return TESTBIT(stage2[stage1[ch / {blksize}]], ch % {blksize});
}}''')
def main() -> None:
if len(sys.argv) != 4:
print('Usage: bool-props.py name shortname file', file=sys.stderr)
exit(1)
xs = parse(sys.argv[3])
blksize = -1
smallest = math.inf
for bs in powers_of_2():
if bs > len(xs):
break
Cs = [tuple(x) for x in chunks(xs, bs)]
cs = list(dict.fromkeys(Cs))
sz_s1 = len(Cs) * isize(len(cs) - 1)
sz_s2 = len(cs) * bs
sz = sz_s1 + sz_s2
if sz < smallest:
smallest = sz
blksize = bs
Cs = [tuple(x) for x in chunks(xs, blksize)]
genfile(Cs, blksize)
if __name__ == '__main__':
main()
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