diff options
Diffstat (limited to 'gen/prop/sb')
| -rwxr-xr-x | gen/prop/sb | 191 |
1 files changed, 117 insertions, 74 deletions
diff --git a/gen/prop/sb b/gen/prop/sb index aff06fd..e40f9a5 100755 --- a/gen/prop/sb +++ b/gen/prop/sb @@ -1,78 +1,121 @@ -#!/bin/sh - -set -e -cd "${0%/*}/../.." -exec >lib/unicode/prop/uprop_get_sb.c - -gawk ' -BEGIN { - FS = " *(; *|#.*)" - - map["ATerm"] = "AT" - map["Close"] = "CL" - map["CR"] = "CR" - map["Extend"] = "EX" - map["Format"] = "FO" - map["LF"] = "LF" - map["Lower"] = "LO" - map["Numeric"] = "NU" - map["OLetter"] = "LE" - map["Other"] = "XX" - map["SContinue"] = "SC" - map["Sep"] = "SE" - map["Sp"] = "SP" - map["STerm"] = "ST" - map["Upper"] = "UP" - - print "/* This file is autogenerated by gen/prop/sb; DO NOT EDIT. */" - print "" - print "#include \"_bsearch.h\"" - print "#include \"macros.h\"" - print "#include \"rune.h\"" - print "#include \"unicode/prop.h\"" - print "" -} +#!/usr/bin/python3 -/^[A-F0-9]/ { - n = split($1, a, /\.\./) - lo = strtonum("0X" a[1]) - hi = strtonum("0X" a[n]) +import math - for (i = lo; i <= hi; i++) - props[i] = "SB_" map[$2] -} +from lib import * -END { - print "static constexpr enum uprop_sb lookup_lat1[] = {" - for (i = 0; i < 0x100; i++) { - if (i % 8 == 0) - printf "\t" - printf "%s%s", (props[i] ? props[i] : "SB_XX") ",", \ - i % 8 == 7 ? "\n" : " " - } - print "};" - print "" - print "static const struct {" - print "\trune lo, hi;" - print "\tenum uprop_sb val;" - print "} lookup[] = {" - - for (i = 0x100; i <= 0x10FFFF; i++) { - if (!props[i]) - continue - for (lo = i; props[lo] == props[i + 1]; i++) - ; - printf "\t{RUNE_C(0x%06X), RUNE_C(0x%06X), %s},\n", lo, i, props[i] - } - - print "};" - print "" - print "_MLIB_DEFINE_BSEARCH(enum uprop_sb, lookup, SB_XX)" - print "" - print "enum uprop_sb" - print "uprop_get_sb(rune ch)" - print "{" - print "\treturn ch < lengthof(lookup_lat1) ? lookup_lat1[ch] : mlib_lookup(ch);" - print "}" + +MAP = { + 'ATerm': 'AT', + 'Close': 'CL', + 'CR': 'CR', + 'Extend': 'EX', + 'Format': 'FO', + 'LF': 'LF', + 'Lower': 'LO', + 'Numeric': 'NU', + 'OLetter': 'LE', + 'Other': 'XX', + 'SContinue': 'SC', + 'Sep': 'SE', + 'Sp': 'SP', + 'STerm': 'ST', + 'Upper': 'UP', } -' data/SentenceBreakProperty | sed 's/\s*$//' + +longest = 0 + +def parse(file: str) -> list[bool]: + global longest + + xs = ['SB_XX'] * 0x110000 + with open(file, 'r') as f: + for line in f.readlines(): + if len(line.strip()) == 0 or line[0] == '#': + continue + + parts = line.split(';') + ranges = [int(x, 16) for x in parts[0].strip().split('..')] + prop = 'SB_' + MAP[parts[1].split('#')[0].strip()] + longest = max(longest, len(prop)) + + for i in range(ranges[0], ranges[len(ranges) - 1] + 1): + xs[i] = prop + 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/sb; DO NOT EDIT. */ + +#include <stdint.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() + + ppc = columns(blksize, longest + 1) + print(f'static constexpr enum uprop_sb stage2[][{blksize}] = {{') + for c in cs: + for i in range(blksize // ppc): + print('\t{' if i == 0 else '\t ', end='') + for j in range(ppc): + print(c[i*ppc + j], end='') + if i < blksize // ppc - 1 or j < ppc - 1: + print(',', end='') + if j < ppc - 1: + print(' ' * (longest + 1 - len(c[i*ppc + j])), end='') + if i < blksize // ppc - 1: + print() + print('},') + print('};') + + print() + + print(f'''\ +enum uprop_sb +uprop_get_sb(rune ch) +{{ + return stage2[stage1[ch / {blksize}]][ch % {blksize}]; +}}''') + +def main() -> None: + cwd_init() + xs = parse('data/SentenceBreakProperty') + + 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 = set(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)] + with open('lib/unicode/prop/uprop_get_sb.c', 'w') as f: + sys.stdout = f + genfile(Cs, blksize) + + report_size(len(xs), smallest) + +if __name__ == '__main__': + main() |