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-rwxr-xr-xgen/prop/dt197
1 files changed, 117 insertions, 80 deletions
diff --git a/gen/prop/dt b/gen/prop/dt
index 12881c5..81503d2 100755
--- a/gen/prop/dt
+++ b/gen/prop/dt
@@ -1,84 +1,121 @@
-#!/bin/sh
-
-set -e
-cd "${0%/*}/../.."
-exec >lib/unicode/prop/uprop_get_dt.c
-
-gawk '
-BEGIN {
- FS = "( *#.*| +; +)"
-
- map["Canonical"] = "CAN"
- map["Compat"] = "COM"
- map["Circle"] = "ENC"
- map["Final"] = "FIN"
- map["Font"] = "FONT"
- map["Fraction"] = "FRA"
- map["Initial"] = "INIT"
- map["Isolated"] = "ISO"
- map["Medial"] = "MED"
- map["Narrow"] = "NAR"
- map["Nobreak"] = "NB"
- map["Small"] = "SML"
- map["Square"] = "SQR"
- map["Sub"] = "SUB"
- map["Super"] = "SUP"
- map["Vertical"] = "VERT"
- map["Wide"] = "WIDE"
-
-
- print "/* This file is autogenerated by gen/prop/dt; 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
-/^[^#]/ {
- n = split($1, a, /\.\./)
- lo = strtonum("0X" a[1])
- hi = strtonum("0X" a[n])
+import math
+
+from lib import *
- for (i = lo; i <= hi; i++) {
- gsub(/^; /, "", $2)
- props[i] = "DT_" map[$2]
- }
-}
-END {
- print "static constexpr enum uprop_dt lookup_lat1[] = {"
- for (i = 0; i < 0x100; i++) {
- if (i % 8 == 0)
- printf "\t"
- printf "%-8s%s", (props[i] ? props[i] : "DT_NONE") ",", \
- i % 8 == 7 ? "\n" : " "
- }
- print "};"
- print ""
- print "static const struct {"
- print "\trune lo, hi;"
- print "\tenum uprop_dt val;"
- print "} lookup[] = {"
-
- for (i = 0x100; i <= 0x10FFFF; i++) {
- if (!props[i])
- continue
- lo = i
- while (props[lo] == props[i + 1])
- i++
- printf "\t{RUNE_C(0x%06X), RUNE_C(0x%06X), %s},\n", lo, i, props[i]
- }
-
- print "};"
- print ""
- print "_MLIB_DEFINE_BSEARCH(enum uprop_dt, lookup, DT_NONE)"
- print ""
- print "enum uprop_dt"
- print "uprop_get_dt(rune ch)"
- print "{"
- print "\treturn ch < lengthof(lookup_lat1) ? lookup_lat1[ch] : mlib_lookup(ch);"
- print "}"
+MAP = {
+ 'Canonical': 'CAN',
+ 'Compat' : 'COM',
+ 'Circle' : 'ENC',
+ 'Final' : 'FIN',
+ 'Font' : 'FONT',
+ 'Fraction' : 'FRA',
+ 'Initial' : 'INIT',
+ 'Isolated' : 'ISO',
+ 'Medial' : 'MED',
+ 'Narrow' : 'NAR',
+ 'Nobreak' : 'NB',
+ 'Small' : 'SML',
+ 'Square' : 'SQR',
+ 'Sub' : 'SUB',
+ 'Super' : 'SUP',
+ 'Vertical' : 'VERT',
+ 'Wide' : 'WIDE',
}
-' data/DerivedDecompositionType | sed 's/\s*$//'
+
+longest = 0
+
+def parse(file: str) -> list[bool]:
+ global longest
+
+ xs = ['DT_NONE'] * 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 = 'DT_' + 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/dt; DO NOT EDIT. */
+
+#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_dt 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_dt
+uprop_get_dt(rune ch)
+{{
+ return stage2[stage1[ch / {blksize}]][ch % {blksize}];
+}}''')
+
+def main() -> None:
+ cwd_init()
+ xs = parse('data/DerivedDecompositionType')
+
+ 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 * 2
+ 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_dt.c', 'w') as f:
+ sys.stdout = f
+ genfile(Cs, blksize)
+
+ report_size(len(xs), smallest)
+
+if __name__ == '__main__':
+ main()