libcaca/caca-php/examples/figfont.php

#!/usr/bin/php5
<?php
/*
 *  figfont.php      sample program for libcaca php binding
 *  Copyright (c) 2008 Nicolas Vion <nico@yojik.eu>
 *
 *  This program is free software. It comes without any warranty, to
 *  the extent permitted by applicable law. You can redistribute it
 *  and/or modify it under the terms of the Do What the Fuck You Want
 *  to Public License, Version 2, as published by Sam Hocevar. See
 *  http://www.wtfpl.net/ for more details.
 */

function unistr_to_ords($str, $encoding = 'UTF-8'){
    $str = mb_convert_encoding($str, "UCS-4BE", $encoding);
    $result = array();

    for ($i = 0; $i < mb_strlen($str, "UCS-4BE"); $i++){
        $c = mb_substr($str, $i, 1, "UCS-4BE");
        $val = unpack("N", $c);
        $result[] = $val[1];
    }
    return $result;
}

if (php_sapi_name() != "cli") {
    die("You have to run this program with php-cli!\n");
}

if ($argc < 3) {
    die("Too few arguments.\nUsage: cmd <path of font> <utf8 string>\n");
}

$cv = caca_create_canvas(0, 0);

if (!caca_canvas_set_figfont($cv, $argv[1])) {
    die("Could not open font\n");
}

$chars = unistr_to_ords($argv[2]);
$color = 0;
foreach ($chars as $c) {
    caca_set_color_ansi($cv, 1 + (($color += 4) % 15), CACA_TRANSPARENT);
    caca_put_figchar($cv, $c);
}

echo caca_export_string($cv, "utf8");

?>