#!/bin/sh

set -e
cd "${0%/*}/../.."
exec >lib/unicode/prop/uprop_get_equideo.c

gawk '
BEGIN {
	FS = "[ ;]+"

	print "/* This file is autogenerated by gen/prop/equideo; DO NOT EDIT. */"
	print ""
	print "#include \"_bsearch.h\""
	print "#include \"macros.h\""
	print "#include \"rune.h\""
	print "#include \"unicode/prop.h\""
	print ""
}

/^[A-F0-9]{4}/ {
	n = split($1, a, /\.\./)
	lo = strtonum("0X" a[1])
	hi = strtonum("0X" a[n])

	for (i = lo; i <= hi; i++)
		props[i] = strtonum("0X" $2)
}

END {
	print "static const struct {"
	print "\trune k, v;"
	print "} lookup[] = {"

	for (i = 0; i <= 0x10FFFF; i++) {
		if (props[i])
			printf "\t{RUNE_C(0x%06X), RUNE_C(0x%06X)},\n", i, props[i]
	}

	print "};"
	print ""
	print "_MLIB_DEFINE_BSEARCH_KV(rune, lookup, \x27\\0\x27)"
	print ""
	print "rune"
	print "uprop_get_equideo(rune ch)"
	print "{"
	print "\treturn ch < lookup[0].k || ch > lookup[lengthof(lookup) - 1].k"
	print "\t\t? \x27\\0\x27"
	print "\t\t: mlib_lookup_kv(ch);"
	print "}"
}
' data/EquivalentUnifiedIdeograph