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raxol

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Multi-surface application runtime for Elixir. One TEA module renders to terminal, browser (LiveView), SSH, and MCP (agents). 30+ widgets, flexbox + CSS grid, AI agent runtime, distributed swarm with CRDTs, time-travel debugging, session recording, sandboxed REPL, and agentic commerce.

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raxol lib termbox2_nif c_src termbox2 tests test_egc test.php
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lib/termbox2_nif/c_src/termbox2/tests/test_egc/test.php 

<?php

declare(strict_types=1);



if (!$test->ffi->tb_has_egc()) {

    // This will only work with extended grapheme cluster support

    $test->skip();

}



$test->ffi->tb_init();



$ech = $test->ffi->new('uint32_t[2]');

$test->ffi->tb_utf8_char_to_unicode(FFI::addr($ech[0]), "\xd0\xb5"); // cyrillic small letter ie

$test->ffi->tb_utf8_char_to_unicode(FFI::addr($ech[1]), "\xcc\x88"); // combining diaeresis



// Set EGC using tb_set_cell_ex

$y = 0;

$test->ffi->tb_set_cell(0, $y, ord('a'), 0, 0);

$test->ffi->tb_set_cell_ex(1, $y, $test->ffi->cast('uint32_t *', FFI::addr($ech)), 2, 0, 0);

$test->ffi->tb_set_cell(2, $y, ord('b'), 0, 0);



// Same effect with tb_extend_cell

++$y;

$test->ffi->tb_set_cell(0, $y, ord('c'), 0, 0);

$test->ffi->tb_set_cell(1, $y, $ech[0], 0, 0);

$test->ffi->tb_extend_cell(1, $y, $ech[1]);

$test->ffi->tb_set_cell(2, $y, ord('d'), 0, 0);



// Another example with 2 combining characters

++$y;

$test->ffi->tb_set_cell(0, $y, 0xff29, 0, 0); // fullwidth latin capital letter i

$test->ffi->tb_extend_cell(0, $y, 0x0324); // combining diaeresis below

$test->ffi->tb_extend_cell(0, $y, 0x036f); // combining latin small letter x



// Same as above via tb_print (should be equivalent)

++$y;

$test->ffi->tb_print(0, $y, 0, 0, "\xef\xbc\xa9\xcc\xa4\xcd\xaf");



$test->ffi->tb_present();

$test->screencap();