// SPDX-License-Identifier: Apache-2.0
// SPDX-FileCopyrightText: 2014 Jonas Ådahl <jadahl@gmail.com>
// SPDX-FileCopyrightText: 2024 The Ebitengine Authors

//go:build freebsd || linux || netbsd || openbsd

package glfw

// #include "xkb_unicode_linbsd.h"
import "C"
import "slices"

/*
 * Marcus: This code was originally written by Markus G. Kuhn.
 * I have made some slight changes (trimmed it down a bit from >60 KB to
 * 20 KB), but the functionality is the same.
 */

/*
 * This module converts keysym values into the corresponding ISO 10646
 * (UCS, Unicode) values.
 *
 * The array keysymtab[] contains pairs of X11 keysym values for graphical
 * characters and the corresponding Unicode value. The function
 * _glfwKeySym2Unicode() maps a keysym onto a Unicode value using a binary
 * search, therefore keysymtab[] must remain SORTED by keysym value.
 *
 * We allow to represent any UCS character in the range U-00000000 to
 * U-00FFFFFF by a keysym value in the range 0x01000000 to 0x01ffffff.
 * This admittedly does not cover the entire 31-bit space of UCS, but
 * it does cover all of the characters up to U-10FFFF, which can be
 * represented by UTF-16, and more, and it is very unlikely that higher
 * UCS codes will ever be assigned by ISO. So to get Unicode character
 * U+ABCD you can directly use keysym 0x0100abcd.
 *
 * Original author: Markus G. Kuhn <mkuhn@acm.org>, University of
 *                  Cambridge, April 2001
 *
 * Special thanks to Richard Verhoeven <river@win.tue.nl> for preparing
 * an initial draft of the mapping table.
 *
 */

type codepair struct {
	keysym uint32
	ucs    uint32
}

var keysymtab = []codepair{
	{0x01a1, 0x0104},
	{0x01a2, 0x02d8},
	{0x01a3, 0x0141},
	{0x01a5, 0x013d},
	{0x01a6, 0x015a},
	{0x01a9, 0x0160},
	{0x01aa, 0x015e},
	{0x01ab, 0x0164},
	{0x01ac, 0x0179},
	{0x01ae, 0x017d},
	{0x01af, 0x017b},
	{0x01b1, 0x0105},
	{0x01b2, 0x02db},
	{0x01b3, 0x0142},
	{0x01b5, 0x013e},
	{0x01b6, 0x015b},
	{0x01b7, 0x02c7},
	{0x01b9, 0x0161},
	{0x01ba, 0x015f},
	{0x01bb, 0x0165},
	{0x01bc, 0x017a},
	{0x01bd, 0x02dd},
	{0x01be, 0x017e},
	{0x01bf, 0x017c},
	{0x01c0, 0x0154},
	{0x01c3, 0x0102},
	{0x01c5, 0x0139},
	{0x01c6, 0x0106},
	{0x01c8, 0x010c},
	{0x01ca, 0x0118},
	{0x01cc, 0x011a},
	{0x01cf, 0x010e},
	{0x01d0, 0x0110},
	{0x01d1, 0x0143},
	{0x01d2, 0x0147},
	{0x01d5, 0x0150},
	{0x01d8, 0x0158},
	{0x01d9, 0x016e},
	{0x01db, 0x0170},
	{0x01de, 0x0162},
	{0x01e0, 0x0155},
	{0x01e3, 0x0103},
	{0x01e5, 0x013a},
	{0x01e6, 0x0107},
	{0x01e8, 0x010d},
	{0x01ea, 0x0119},
	{0x01ec, 0x011b},
	{0x01ef, 0x010f},
	{0x01f0, 0x0111},
	{0x01f1, 0x0144},
	{0x01f2, 0x0148},
	{0x01f5, 0x0151},
	{0x01f8, 0x0159},
	{0x01f9, 0x016f},
	{0x01fb, 0x0171},
	{0x01fe, 0x0163},
	{0x01ff, 0x02d9},
	{0x02a1, 0x0126},
	{0x02a6, 0x0124},
	{0x02a9, 0x0130},
	{0x02ab, 0x011e},
	{0x02ac, 0x0134},
	{0x02b1, 0x0127},
	{0x02b6, 0x0125},
	{0x02b9, 0x0131},
	{0x02bb, 0x011f},
	{0x02bc, 0x0135},
	{0x02c5, 0x010a},
	{0x02c6, 0x0108},
	{0x02d5, 0x0120},
	{0x02d8, 0x011c},
	{0x02dd, 0x016c},
	{0x02de, 0x015c},
	{0x02e5, 0x010b},
	{0x02e6, 0x0109},
	{0x02f5, 0x0121},
	{0x02f8, 0x011d},
	{0x02fd, 0x016d},
	{0x02fe, 0x015d},
	{0x03a2, 0x0138},
	{0x03a3, 0x0156},
	{0x03a5, 0x0128},
	{0x03a6, 0x013b},
	{0x03aa, 0x0112},
	{0x03ab, 0x0122},
	{0x03ac, 0x0166},
	{0x03b3, 0x0157},
	{0x03b5, 0x0129},
	{0x03b6, 0x013c},
	{0x03ba, 0x0113},
	{0x03bb, 0x0123},
	{0x03bc, 0x0167},
	{0x03bd, 0x014a},
	{0x03bf, 0x014b},
	{0x03c0, 0x0100},
	{0x03c7, 0x012e},
	{0x03cc, 0x0116},
	{0x03cf, 0x012a},
	{0x03d1, 0x0145},
	{0x03d2, 0x014c},
	{0x03d3, 0x0136},
	{0x03d9, 0x0172},
	{0x03dd, 0x0168},
	{0x03de, 0x016a},
	{0x03e0, 0x0101},
	{0x03e7, 0x012f},
	{0x03ec, 0x0117},
	{0x03ef, 0x012b},
	{0x03f1, 0x0146},
	{0x03f2, 0x014d},
	{0x03f3, 0x0137},
	{0x03f9, 0x0173},
	{0x03fd, 0x0169},
	{0x03fe, 0x016b},
	{0x047e, 0x203e},
	{0x04a1, 0x3002},
	{0x04a2, 0x300c},
	{0x04a3, 0x300d},
	{0x04a4, 0x3001},
	{0x04a5, 0x30fb},
	{0x04a6, 0x30f2},
	{0x04a7, 0x30a1},
	{0x04a8, 0x30a3},
	{0x04a9, 0x30a5},
	{0x04aa, 0x30a7},
	{0x04ab, 0x30a9},
	{0x04ac, 0x30e3},
	{0x04ad, 0x30e5},
	{0x04ae, 0x30e7},
	{0x04af, 0x30c3},
	{0x04b0, 0x30fc},
	{0x04b1, 0x30a2},
	{0x04b2, 0x30a4},
	{0x04b3, 0x30a6},
	{0x04b4, 0x30a8},
	{0x04b5, 0x30aa},
	{0x04b6, 0x30ab},
	{0x04b7, 0x30ad},
	{0x04b8, 0x30af},
	{0x04b9, 0x30b1},
	{0x04ba, 0x30b3},
	{0x04bb, 0x30b5},
	{0x04bc, 0x30b7},
	{0x04bd, 0x30b9},
	{0x04be, 0x30bb},
	{0x04bf, 0x30bd},
	{0x04c0, 0x30bf},
	{0x04c1, 0x30c1},
	{0x04c2, 0x30c4},
	{0x04c3, 0x30c6},
	{0x04c4, 0x30c8},
	{0x04c5, 0x30ca},
	{0x04c6, 0x30cb},
	{0x04c7, 0x30cc},
	{0x04c8, 0x30cd},
	{0x04c9, 0x30ce},
	{0x04ca, 0x30cf},
	{0x04cb, 0x30d2},
	{0x04cc, 0x30d5},
	{0x04cd, 0x30d8},
	{0x04ce, 0x30db},
	{0x04cf, 0x30de},
	{0x04d0, 0x30df},
	{0x04d1, 0x30e0},
	{0x04d2, 0x30e1},
	{0x04d3, 0x30e2},
	{0x04d4, 0x30e4},
	{0x04d5, 0x30e6},
	{0x04d6, 0x30e8},
	{0x04d7, 0x30e9},
	{0x04d8, 0x30ea},
	{0x04d9, 0x30eb},
	{0x04da, 0x30ec},
	{0x04db, 0x30ed},
	{0x04dc, 0x30ef},
	{0x04dd, 0x30f3},
	{0x04de, 0x309b},
	{0x04df, 0x309c},
	{0x05ac, 0x060c},
	{0x05bb, 0x061b},
	{0x05bf, 0x061f},
	{0x05c1, 0x0621},
	{0x05c2, 0x0622},
	{0x05c3, 0x0623},
	{0x05c4, 0x0624},
	{0x05c5, 0x0625},
	{0x05c6, 0x0626},
	{0x05c7, 0x0627},
	{0x05c8, 0x0628},
	{0x05c9, 0x0629},
	{0x05ca, 0x062a},
	{0x05cb, 0x062b},
	{0x05cc, 0x062c},
	{0x05cd, 0x062d},
	{0x05ce, 0x062e},
	{0x05cf, 0x062f},
	{0x05d0, 0x0630},
	{0x05d1, 0x0631},
	{0x05d2, 0x0632},
	{0x05d3, 0x0633},
	{0x05d4, 0x0634},
	{0x05d5, 0x0635},
	{0x05d6, 0x0636},
	{0x05d7, 0x0637},
	{0x05d8, 0x0638},
	{0x05d9, 0x0639},
	{0x05da, 0x063a},
	{0x05e0, 0x0640},
	{0x05e1, 0x0641},
	{0x05e2, 0x0642},
	{0x05e3, 0x0643},
	{0x05e4, 0x0644},
	{0x05e5, 0x0645},
	{0x05e6, 0x0646},
	{0x05e7, 0x0647},
	{0x05e8, 0x0648},
	{0x05e9, 0x0649},
	{0x05ea, 0x064a},
	{0x05eb, 0x064b},
	{0x05ec, 0x064c},
	{0x05ed, 0x064d},
	{0x05ee, 0x064e},
	{0x05ef, 0x064f},
	{0x05f0, 0x0650},
	{0x05f1, 0x0651},
	{0x05f2, 0x0652},
	{0x06a1, 0x0452},
	{0x06a2, 0x0453},
	{0x06a3, 0x0451},
	{0x06a4, 0x0454},
	{0x06a5, 0x0455},
	{0x06a6, 0x0456},
	{0x06a7, 0x0457},
	{0x06a8, 0x0458},
	{0x06a9, 0x0459},
	{0x06aa, 0x045a},
	{0x06ab, 0x045b},
	{0x06ac, 0x045c},
	{0x06ae, 0x045e},
	{0x06af, 0x045f},
	{0x06b0, 0x2116},
	{0x06b1, 0x0402},
	{0x06b2, 0x0403},
	{0x06b3, 0x0401},
	{0x06b4, 0x0404},
	{0x06b5, 0x0405},
	{0x06b6, 0x0406},
	{0x06b7, 0x0407},
	{0x06b8, 0x0408},
	{0x06b9, 0x0409},
	{0x06ba, 0x040a},
	{0x06bb, 0x040b},
	{0x06bc, 0x040c},
	{0x06be, 0x040e},
	{0x06bf, 0x040f},
	{0x06c0, 0x044e},
	{0x06c1, 0x0430},
	{0x06c2, 0x0431},
	{0x06c3, 0x0446},
	{0x06c4, 0x0434},
	{0x06c5, 0x0435},
	{0x06c6, 0x0444},
	{0x06c7, 0x0433},
	{0x06c8, 0x0445},
	{0x06c9, 0x0438},
	{0x06ca, 0x0439},
	{0x06cb, 0x043a},
	{0x06cc, 0x043b},
	{0x06cd, 0x043c},
	{0x06ce, 0x043d},
	{0x06cf, 0x043e},
	{0x06d0, 0x043f},
	{0x06d1, 0x044f},
	{0x06d2, 0x0440},
	{0x06d3, 0x0441},
	{0x06d4, 0x0442},
	{0x06d5, 0x0443},
	{0x06d6, 0x0436},
	{0x06d7, 0x0432},
	{0x06d8, 0x044c},
	{0x06d9, 0x044b},
	{0x06da, 0x0437},
	{0x06db, 0x0448},
	{0x06dc, 0x044d},
	{0x06dd, 0x0449},
	{0x06de, 0x0447},
	{0x06df, 0x044a},
	{0x06e0, 0x042e},
	{0x06e1, 0x0410},
	{0x06e2, 0x0411},
	{0x06e3, 0x0426},
	{0x06e4, 0x0414},
	{0x06e5, 0x0415},
	{0x06e6, 0x0424},
	{0x06e7, 0x0413},
	{0x06e8, 0x0425},
	{0x06e9, 0x0418},
	{0x06ea, 0x0419},
	{0x06eb, 0x041a},
	{0x06ec, 0x041b},
	{0x06ed, 0x041c},
	{0x06ee, 0x041d},
	{0x06ef, 0x041e},
	{0x06f0, 0x041f},
	{0x06f1, 0x042f},
	{0x06f2, 0x0420},
	{0x06f3, 0x0421},
	{0x06f4, 0x0422},
	{0x06f5, 0x0423},
	{0x06f6, 0x0416},
	{0x06f7, 0x0412},
	{0x06f8, 0x042c},
	{0x06f9, 0x042b},
	{0x06fa, 0x0417},
	{0x06fb, 0x0428},
	{0x06fc, 0x042d},
	{0x06fd, 0x0429},
	{0x06fe, 0x0427},
	{0x06ff, 0x042a},
	{0x07a1, 0x0386},
	{0x07a2, 0x0388},
	{0x07a3, 0x0389},
	{0x07a4, 0x038a},
	{0x07a5, 0x03aa},
	{0x07a7, 0x038c},
	{0x07a8, 0x038e},
	{0x07a9, 0x03ab},
	{0x07ab, 0x038f},
	{0x07ae, 0x0385},
	{0x07af, 0x2015},
	{0x07b1, 0x03ac},
	{0x07b2, 0x03ad},
	{0x07b3, 0x03ae},
	{0x07b4, 0x03af},
	{0x07b5, 0x03ca},
	{0x07b6, 0x0390},
	{0x07b7, 0x03cc},
	{0x07b8, 0x03cd},
	{0x07b9, 0x03cb},
	{0x07ba, 0x03b0},
	{0x07bb, 0x03ce},
	{0x07c1, 0x0391},
	{0x07c2, 0x0392},
	{0x07c3, 0x0393},
	{0x07c4, 0x0394},
	{0x07c5, 0x0395},
	{0x07c6, 0x0396},
	{0x07c7, 0x0397},
	{0x07c8, 0x0398},
	{0x07c9, 0x0399},
	{0x07ca, 0x039a},
	{0x07cb, 0x039b},
	{0x07cc, 0x039c},
	{0x07cd, 0x039d},
	{0x07ce, 0x039e},
	{0x07cf, 0x039f},
	{0x07d0, 0x03a0},
	{0x07d1, 0x03a1},
	{0x07d2, 0x03a3},
	{0x07d4, 0x03a4},
	{0x07d5, 0x03a5},
	{0x07d6, 0x03a6},
	{0x07d7, 0x03a7},
	{0x07d8, 0x03a8},
	{0x07d9, 0x03a9},
	{0x07e1, 0x03b1},
	{0x07e2, 0x03b2},
	{0x07e3, 0x03b3},
	{0x07e4, 0x03b4},
	{0x07e5, 0x03b5},
	{0x07e6, 0x03b6},
	{0x07e7, 0x03b7},
	{0x07e8, 0x03b8},
	{0x07e9, 0x03b9},
	{0x07ea, 0x03ba},
	{0x07eb, 0x03bb},
	{0x07ec, 0x03bc},
	{0x07ed, 0x03bd},
	{0x07ee, 0x03be},
	{0x07ef, 0x03bf},
	{0x07f0, 0x03c0},
	{0x07f1, 0x03c1},
	{0x07f2, 0x03c3},
	{0x07f3, 0x03c2},
	{0x07f4, 0x03c4},
	{0x07f5, 0x03c5},
	{0x07f6, 0x03c6},
	{0x07f7, 0x03c7},
	{0x07f8, 0x03c8},
	{0x07f9, 0x03c9},
	{0x08a1, 0x23b7},
	{0x08a2, 0x250c},
	{0x08a3, 0x2500},
	{0x08a4, 0x2320},
	{0x08a5, 0x2321},
	{0x08a6, 0x2502},
	{0x08a7, 0x23a1},
	{0x08a8, 0x23a3},
	{0x08a9, 0x23a4},
	{0x08aa, 0x23a6},
	{0x08ab, 0x239b},
	{0x08ac, 0x239d},
	{0x08ad, 0x239e},
	{0x08ae, 0x23a0},
	{0x08af, 0x23a8},
	{0x08b0, 0x23ac},
	{0x08bc, 0x2264},
	{0x08bd, 0x2260},
	{0x08be, 0x2265},
	{0x08bf, 0x222b},
	{0x08c0, 0x2234},
	{0x08c1, 0x221d},
	{0x08c2, 0x221e},
	{0x08c5, 0x2207},
	{0x08c8, 0x223c},
	{0x08c9, 0x2243},
	{0x08cd, 0x21d4},
	{0x08ce, 0x21d2},
	{0x08cf, 0x2261},
	{0x08d6, 0x221a},
	{0x08da, 0x2282},
	{0x08db, 0x2283},
	{0x08dc, 0x2229},
	{0x08dd, 0x222a},
	{0x08de, 0x2227},
	{0x08df, 0x2228},
	{0x08ef, 0x2202},
	{0x08f6, 0x0192},
	{0x08fb, 0x2190},
	{0x08fc, 0x2191},
	{0x08fd, 0x2192},
	{0x08fe, 0x2193},
	{0x09e0, 0x25c6},
	{0x09e1, 0x2592},
	{0x09e2, 0x2409},
	{0x09e3, 0x240c},
	{0x09e4, 0x240d},
	{0x09e5, 0x240a},
	{0x09e8, 0x2424},
	{0x09e9, 0x240b},
	{0x09ea, 0x2518},
	{0x09eb, 0x2510},
	{0x09ec, 0x250c},
	{0x09ed, 0x2514},
	{0x09ee, 0x253c},
	{0x09ef, 0x23ba},
	{0x09f0, 0x23bb},
	{0x09f1, 0x2500},
	{0x09f2, 0x23bc},
	{0x09f3, 0x23bd},
	{0x09f4, 0x251c},
	{0x09f5, 0x2524},
	{0x09f6, 0x2534},
	{0x09f7, 0x252c},
	{0x09f8, 0x2502},
	{0x0aa1, 0x2003},
	{0x0aa2, 0x2002},
	{0x0aa3, 0x2004},
	{0x0aa4, 0x2005},
	{0x0aa5, 0x2007},
	{0x0aa6, 0x2008},
	{0x0aa7, 0x2009},
	{0x0aa8, 0x200a},
	{0x0aa9, 0x2014},
	{0x0aaa, 0x2013},
	{0x0aae, 0x2026},
	{0x0aaf, 0x2025},
	{0x0ab0, 0x2153},
	{0x0ab1, 0x2154},
	{0x0ab2, 0x2155},
	{0x0ab3, 0x2156},
	{0x0ab4, 0x2157},
	{0x0ab5, 0x2158},
	{0x0ab6, 0x2159},
	{0x0ab7, 0x215a},
	{0x0ab8, 0x2105},
	{0x0abb, 0x2012},
	{0x0abc, 0x2329},
	{0x0abe, 0x232a},
	{0x0ac3, 0x215b},
	{0x0ac4, 0x215c},
	{0x0ac5, 0x215d},
	{0x0ac6, 0x215e},
	{0x0ac9, 0x2122},
	{0x0aca, 0x2613},
	{0x0acc, 0x25c1},
	{0x0acd, 0x25b7},
	{0x0ace, 0x25cb},
	{0x0acf, 0x25af},
	{0x0ad0, 0x2018},
	{0x0ad1, 0x2019},
	{0x0ad2, 0x201c},
	{0x0ad3, 0x201d},
	{0x0ad4, 0x211e},
	{0x0ad6, 0x2032},
	{0x0ad7, 0x2033},
	{0x0ad9, 0x271d},
	{0x0adb, 0x25ac},
	{0x0adc, 0x25c0},
	{0x0add, 0x25b6},
	{0x0ade, 0x25cf},
	{0x0adf, 0x25ae},
	{0x0ae0, 0x25e6},
	{0x0ae1, 0x25ab},
	{0x0ae2, 0x25ad},
	{0x0ae3, 0x25b3},
	{0x0ae4, 0x25bd},
	{0x0ae5, 0x2606},
	{0x0ae6, 0x2022},
	{0x0ae7, 0x25aa},
	{0x0ae8, 0x25b2},
	{0x0ae9, 0x25bc},
	{0x0aea, 0x261c},
	{0x0aeb, 0x261e},
	{0x0aec, 0x2663},
	{0x0aed, 0x2666},
	{0x0aee, 0x2665},
	{0x0af0, 0x2720},
	{0x0af1, 0x2020},
	{0x0af2, 0x2021},
	{0x0af3, 0x2713},
	{0x0af4, 0x2717},
	{0x0af5, 0x266f},
	{0x0af6, 0x266d},
	{0x0af7, 0x2642},
	{0x0af8, 0x2640},
	{0x0af9, 0x260e},
	{0x0afa, 0x2315},
	{0x0afb, 0x2117},
	{0x0afc, 0x2038},
	{0x0afd, 0x201a},
	{0x0afe, 0x201e},
	{0x0ba3, 0x003c},
	{0x0ba6, 0x003e},
	{0x0ba8, 0x2228},
	{0x0ba9, 0x2227},
	{0x0bc0, 0x00af},
	{0x0bc2, 0x22a5},
	{0x0bc3, 0x2229},
	{0x0bc4, 0x230a},
	{0x0bc6, 0x005f},
	{0x0bca, 0x2218},
	{0x0bcc, 0x2395},
	{0x0bce, 0x22a4},
	{0x0bcf, 0x25cb},
	{0x0bd3, 0x2308},
	{0x0bd6, 0x222a},
	{0x0bd8, 0x2283},
	{0x0bda, 0x2282},
	{0x0bdc, 0x22a2},
	{0x0bfc, 0x22a3},
	{0x0cdf, 0x2017},
	{0x0ce0, 0x05d0},
	{0x0ce1, 0x05d1},
	{0x0ce2, 0x05d2},
	{0x0ce3, 0x05d3},
	{0x0ce4, 0x05d4},
	{0x0ce5, 0x05d5},
	{0x0ce6, 0x05d6},
	{0x0ce7, 0x05d7},
	{0x0ce8, 0x05d8},
	{0x0ce9, 0x05d9},
	{0x0cea, 0x05da},
	{0x0ceb, 0x05db},
	{0x0cec, 0x05dc},
	{0x0ced, 0x05dd},
	{0x0cee, 0x05de},
	{0x0cef, 0x05df},
	{0x0cf0, 0x05e0},
	{0x0cf1, 0x05e1},
	{0x0cf2, 0x05e2},
	{0x0cf3, 0x05e3},
	{0x0cf4, 0x05e4},
	{0x0cf5, 0x05e5},
	{0x0cf6, 0x05e6},
	{0x0cf7, 0x05e7},
	{0x0cf8, 0x05e8},
	{0x0cf9, 0x05e9},
	{0x0cfa, 0x05ea},
	{0x0da1, 0x0e01},
	{0x0da2, 0x0e02},
	{0x0da3, 0x0e03},
	{0x0da4, 0x0e04},
	{0x0da5, 0x0e05},
	{0x0da6, 0x0e06},
	{0x0da7, 0x0e07},
	{0x0da8, 0x0e08},
	{0x0da9, 0x0e09},
	{0x0daa, 0x0e0a},
	{0x0dab, 0x0e0b},
	{0x0dac, 0x0e0c},
	{0x0dad, 0x0e0d},
	{0x0dae, 0x0e0e},
	{0x0daf, 0x0e0f},
	{0x0db0, 0x0e10},
	{0x0db1, 0x0e11},
	{0x0db2, 0x0e12},
	{0x0db3, 0x0e13},
	{0x0db4, 0x0e14},
	{0x0db5, 0x0e15},
	{0x0db6, 0x0e16},
	{0x0db7, 0x0e17},
	{0x0db8, 0x0e18},
	{0x0db9, 0x0e19},
	{0x0dba, 0x0e1a},
	{0x0dbb, 0x0e1b},
	{0x0dbc, 0x0e1c},
	{0x0dbd, 0x0e1d},
	{0x0dbe, 0x0e1e},
	{0x0dbf, 0x0e1f},
	{0x0dc0, 0x0e20},
	{0x0dc1, 0x0e21},
	{0x0dc2, 0x0e22},
	{0x0dc3, 0x0e23},
	{0x0dc4, 0x0e24},
	{0x0dc5, 0x0e25},
	{0x0dc6, 0x0e26},
	{0x0dc7, 0x0e27},
	{0x0dc8, 0x0e28},
	{0x0dc9, 0x0e29},
	{0x0dca, 0x0e2a},
	{0x0dcb, 0x0e2b},
	{0x0dcc, 0x0e2c},
	{0x0dcd, 0x0e2d},
	{0x0dce, 0x0e2e},
	{0x0dcf, 0x0e2f},
	{0x0dd0, 0x0e30},
	{0x0dd1, 0x0e31},
	{0x0dd2, 0x0e32},
	{0x0dd3, 0x0e33},
	{0x0dd4, 0x0e34},
	{0x0dd5, 0x0e35},
	{0x0dd6, 0x0e36},
	{0x0dd7, 0x0e37},
	{0x0dd8, 0x0e38},
	{0x0dd9, 0x0e39},
	{0x0dda, 0x0e3a},
	{0x0ddf, 0x0e3f},
	{0x0de0, 0x0e40},
	{0x0de1, 0x0e41},
	{0x0de2, 0x0e42},
	{0x0de3, 0x0e43},
	{0x0de4, 0x0e44},
	{0x0de5, 0x0e45},
	{0x0de6, 0x0e46},
	{0x0de7, 0x0e47},
	{0x0de8, 0x0e48},
	{0x0de9, 0x0e49},
	{0x0dea, 0x0e4a},
	{0x0deb, 0x0e4b},
	{0x0dec, 0x0e4c},
	{0x0ded, 0x0e4d},
	{0x0df0, 0x0e50},
	{0x0df1, 0x0e51},
	{0x0df2, 0x0e52},
	{0x0df3, 0x0e53},
	{0x0df4, 0x0e54},
	{0x0df5, 0x0e55},
	{0x0df6, 0x0e56},
	{0x0df7, 0x0e57},
	{0x0df8, 0x0e58},
	{0x0df9, 0x0e59},
	{0x0ea1, 0x3131},
	{0x0ea2, 0x3132},
	{0x0ea3, 0x3133},
	{0x0ea4, 0x3134},
	{0x0ea5, 0x3135},
	{0x0ea6, 0x3136},
	{0x0ea7, 0x3137},
	{0x0ea8, 0x3138},
	{0x0ea9, 0x3139},
	{0x0eaa, 0x313a},
	{0x0eab, 0x313b},
	{0x0eac, 0x313c},
	{0x0ead, 0x313d},
	{0x0eae, 0x313e},
	{0x0eaf, 0x313f},
	{0x0eb0, 0x3140},
	{0x0eb1, 0x3141},
	{0x0eb2, 0x3142},
	{0x0eb3, 0x3143},
	{0x0eb4, 0x3144},
	{0x0eb5, 0x3145},
	{0x0eb6, 0x3146},
	{0x0eb7, 0x3147},
	{0x0eb8, 0x3148},
	{0x0eb9, 0x3149},
	{0x0eba, 0x314a},
	{0x0ebb, 0x314b},
	{0x0ebc, 0x314c},
	{0x0ebd, 0x314d},
	{0x0ebe, 0x314e},
	{0x0ebf, 0x314f},
	{0x0ec0, 0x3150},
	{0x0ec1, 0x3151},
	{0x0ec2, 0x3152},
	{0x0ec3, 0x3153},
	{0x0ec4, 0x3154},
	{0x0ec5, 0x3155},
	{0x0ec6, 0x3156},
	{0x0ec7, 0x3157},
	{0x0ec8, 0x3158},
	{0x0ec9, 0x3159},
	{0x0eca, 0x315a},
	{0x0ecb, 0x315b},
	{0x0ecc, 0x315c},
	{0x0ecd, 0x315d},
	{0x0ece, 0x315e},
	{0x0ecf, 0x315f},
	{0x0ed0, 0x3160},
	{0x0ed1, 0x3161},
	{0x0ed2, 0x3162},
	{0x0ed3, 0x3163},
	{0x0ed4, 0x11a8},
	{0x0ed5, 0x11a9},
	{0x0ed6, 0x11aa},
	{0x0ed7, 0x11ab},
	{0x0ed8, 0x11ac},
	{0x0ed9, 0x11ad},
	{0x0eda, 0x11ae},
	{0x0edb, 0x11af},
	{0x0edc, 0x11b0},
	{0x0edd, 0x11b1},
	{0x0ede, 0x11b2},
	{0x0edf, 0x11b3},
	{0x0ee0, 0x11b4},
	{0x0ee1, 0x11b5},
	{0x0ee2, 0x11b6},
	{0x0ee3, 0x11b7},
	{0x0ee4, 0x11b8},
	{0x0ee5, 0x11b9},
	{0x0ee6, 0x11ba},
	{0x0ee7, 0x11bb},
	{0x0ee8, 0x11bc},
	{0x0ee9, 0x11bd},
	{0x0eea, 0x11be},
	{0x0eeb, 0x11bf},
	{0x0eec, 0x11c0},
	{0x0eed, 0x11c1},
	{0x0eee, 0x11c2},
	{0x0eef, 0x316d},
	{0x0ef0, 0x3171},
	{0x0ef1, 0x3178},
	{0x0ef2, 0x317f},
	{0x0ef3, 0x3181},
	{0x0ef4, 0x3184},
	{0x0ef5, 0x3186},
	{0x0ef6, 0x318d},
	{0x0ef7, 0x318e},
	{0x0ef8, 0x11eb},
	{0x0ef9, 0x11f0},
	{0x0efa, 0x11f9},
	{0x0eff, 0x20a9},
	{0x13a4, 0x20ac},
	{0x13bc, 0x0152},
	{0x13bd, 0x0153},
	{0x13be, 0x0178},
	{0x20ac, 0x20ac},
	{0xfe50, '`'},
	{0xfe51, 0x00b4},
	{0xfe52, '^'},
	{0xfe53, '~'},
	{0xfe54, 0x00af},
	{0xfe55, 0x02d8},
	{0xfe56, 0x02d9},
	{0xfe57, 0x00a8},
	{0xfe58, 0x02da},
	{0xfe59, 0x02dd},
	{0xfe5a, 0x02c7},
	{0xfe5b, 0x00b8},
	{0xfe5c, 0x02db},
	{0xfe5d, 0x037a},
	{0xfe5e, 0x309b},
	{0xfe5f, 0x309c},
	{0xfe63, '/'},
	{0xfe64, 0x02bc},
	{0xfe65, 0x02bd},
	{0xfe66, 0x02f5},
	{0xfe67, 0x02f3},
	{0xfe68, 0x02cd},
	{0xfe69, 0xa788},
	{0xfe6a, 0x02f7},
	{0xfe6e, ','},
	{0xfe6f, 0x00a4},
	{0xfe80, 'a'}, // XK_dead_a
	{0xfe81, 'A'}, // XK_dead_A
	{0xfe82, 'e'}, // XK_dead_e
	{0xfe83, 'E'}, // XK_dead_E
	{0xfe84, 'i'}, // XK_dead_i
	{0xfe85, 'I'}, // XK_dead_I
	{0xfe86, 'o'}, // XK_dead_o
	{0xfe87, 'O'}, // XK_dead_O
	{0xfe88, 'u'}, // XK_dead_u
	{0xfe89, 'U'}, // XK_dead_U
	{0xfe8a, 0x0259},
	{0xfe8b, 0x018f},
	{0xfe8c, 0x00b5},
	{0xfe90, '_'},
	{0xfe91, 0x02c8},
	{0xfe92, 0x02cc},
	{0xff80 /*XKB_KEY_KP_Space*/, ' '},
	{0xff95 /*XKB_KEY_KP_7*/, 0x0037},
	{0xff96 /*XKB_KEY_KP_4*/, 0x0034},
	{0xff97 /*XKB_KEY_KP_8*/, 0x0038},
	{0xff98 /*XKB_KEY_KP_6*/, 0x0036},
	{0xff99 /*XKB_KEY_KP_2*/, 0x0032},
	{0xff9a /*XKB_KEY_KP_9*/, 0x0039},
	{0xff9b /*XKB_KEY_KP_3*/, 0x0033},
	{0xff9c /*XKB_KEY_KP_1*/, 0x0031},
	{0xff9d /*XKB_KEY_KP_5*/, 0x0035},
	{0xff9e /*XKB_KEY_KP_0*/, 0x0030},
	{0xffaa /*XKB_KEY_KP_Multiply*/, '*'},
	{0xffab /*XKB_KEY_KP_Add*/, '+'},
	{0xffac /*XKB_KEY_KP_Separator*/, ','},
	{0xffad /*XKB_KEY_KP_Subtract*/, '-'},
	{0xffae /*XKB_KEY_KP_Decimal*/, '.'},
	{0xffaf /*XKB_KEY_KP_Divide*/, '/'},
	{0xffb0 /*XKB_KEY_KP_0*/, 0x0030},
	{0xffb1 /*XKB_KEY_KP_1*/, 0x0031},
	{0xffb2 /*XKB_KEY_KP_2*/, 0x0032},
	{0xffb3 /*XKB_KEY_KP_3*/, 0x0033},
	{0xffb4 /*XKB_KEY_KP_4*/, 0x0034},
	{0xffb5 /*XKB_KEY_KP_5*/, 0x0035},
	{0xffb6 /*XKB_KEY_KP_6*/, 0x0036},
	{0xffb7 /*XKB_KEY_KP_7*/, 0x0037},
	{0xffb8 /*XKB_KEY_KP_8*/, 0x0038},
	{0xffb9 /*XKB_KEY_KP_9*/, 0x0039},
	{0xffbd /*XKB_KEY_KP_Equal*/, '='},
}

// _glfwKeySym2Unicode converts XKB KeySym to Unicode.
//
//export _glfwKeySym2Unicode
func _glfwKeySym2Unicode(keysym C.uint) C.uint32_t {
	// First check for Latin-1 characters (1:1 mapping)
	if (keysym >= 0x0020 && keysym <= 0x007e) || (keysym >= 0x00a0 && keysym <= 0x00ff) {
		return keysym
	}

	// Also check for directly encoded 24-bit UCS characters
	if (keysym & 0xff000000) == 0x01000000 {
		return keysym & 0x00ffffff
	}

	idx, found := slices.BinarySearchFunc(keysymtab, codepair{keysym: uint32(keysym)}, func(a, b codepair) int {
		return int(a.keysym) - int(b.keysym)
	})
	if !found {
		return C.GLFW_INVALID_CODEPOINT
	}
	return C.uint32_t(keysymtab[idx].ucs)
}