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#!/bin/sh
set -e
cd "${0%/*}/../.."
exec >lib/unicode/prop/uprop_get_nv.c
gawk '
BEGIN {
FS = "( *#.*| +; +)"
print "/* This file is autogenerated by gen/prop/nv; DO NOT EDIT. */"
print ""
print "#include <float.h>"
print ""
print "#include \"__bsearch.h\""
print "#include \"macros.h\""
print "#include \"rune.h\""
print "#include \"unicode/prop.h\""
print ""
}
/^[^#]/ {
n = split($1, a, /\.\./)
lo = strtonum("0X" a[1])
hi = strtonum("0X" a[n])
for (i = lo; i <= hi; i++) {
gsub(/^; /, "", $3)
if ($3 ~ /[^.]\//)
sub(/\//, "./", $3)
props[i] = $3
}
}
END {
print "static constexpr double lookup_lat1[] = {"
for (i = 0; i < 0x100; i++) {
if (i % 8 == 0)
printf "\t"
printf "%4s,%s", props[i] ? props[i] : "NAN", i % 8 == 7 ? "\n" : " "
}
print "};"
print ""
print "static const struct {"
print "\trune k;"
print "\tdouble v;"
print "} lookup[] = {"
for (i = 0x100; i <= 0x10FFFF; i++) {
if (!props[i])
continue
printf "\t{RUNE_C(0x%06X), %s},\n", i, props[i]
}
print "};"
print ""
print "__MLIB_DEFINE_BSEARCH_KV(double, lookup, NAN)"
print ""
print "double"
print "uprop_get_nv(rune ch)"
print "{"
print "\treturn ch < lengthof(lookup_lat1) ? lookup_lat1[ch] : mlib_lookup_kv(ch);"
print "}"
}
' data/DerivedNumericValues.txt
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