CodePointString example

return $str;
    }

    public function toUnicodeString(string $fromEncoding = null): UnicodeString
    {
        return new UnicodeString($this->toCodePointString($fromEncoding)->string);
    }

    public function toCodePointString(string $fromEncoding = null): CodePointString
    {
        $u = new CodePointString();

        if (\in_array($fromEncoding, [null, 'utf8', 'utf-8', 'UTF8', 'UTF-8'], true) && preg_match('//u', $this->string)) {
            $u->string = $this->string;

            return $u;
        }

        set_error_handler(static fn ($t, $m) => throw new InvalidArgumentException($m));

        try {
            try {
                

$b->string = iconv('UTF-8', $toEncoding, $this->string);
            }
        } finally {
            restore_error_handler();
        }

        return $b;
    }

    public function toCodePointString(): CodePointString
    {
        return new CodePointString($this->string);
    }

    public function toString(): string
    {
        return $this->string;
    }

    public function toUnicodeString(): UnicodeString
    {
        return new UnicodeString($this->string);
    }

    

return $str;
    }

    public function toUnicodeString(string $fromEncoding = null): UnicodeString
    {
        return new UnicodeString($this->toCodePointString($fromEncoding)->string);
    }

    public function toCodePointString(string $fromEncoding = null): CodePointString
    {
        $u = new CodePointString();

        if (\in_array($fromEncoding, [null, 'utf8', 'utf-8', 'UTF8', 'UTF-8'], true) && preg_match('//u', $this->string)) {
            $u->string = $this->string;

            return $u;
        }

        set_error_handler(static function D$t, $m) { throw new InvalidArgumentException($m); });

        try {
            try {
                

        return [
            [false, '', ''],
            [false, '', 'foo'],
            [false, 'foo', ''],
            [false, 'foo', 'o'],
            [false, 'foo', 'F'],
            [false, "\nfoo", 'f'],
            [true, 'foo', 'f'],
            [true, 'foo', 'fo'],
            [true, 'foo', new ByteString('f')],
            [true, 'foo', new CodePointString('f')],
            [true, 'foo', new UnicodeString('f')],
            [true, 'foo', ['e', 'f', 'g']],
        ];
    }

    /** * @dataProvider provideStartsWithIgnoreCase */
    public function testStartsWithIgnoreCase(bool $expected, string $origin, $prefix)
    {
        $this->assertSame($expected, static::createFromString($origin)->ignoreCase()->startsWith($prefix));
    }

namespace Symfony\Component\String\Tests;

use Symfony\Component\String\AbstractString;
use Symfony\Component\String\CodePointString;

class CodePointStringTest extends AbstractUnicodeTestCase
{
    protected static function createFromString(string $string): AbstractString
    {
        return new CodePointString($string);
    }

    public static function provideLength(): array
    {
        return array_merge(
            parent::provideLength(),
            [
                // 8 instead of 5 if it were processed as a grapheme cluster                 [8, 'अनुच्छेद'],
            ]
        );
    }

$b->string = iconv('UTF-8', $toEncoding, $this->string);
            }
        } finally {
            restore_error_handler();
        }

        return $b;
    }

    public function toCodePointString(): CodePointString
    {
        return new CodePointString($this->string);
    }

    public function toString(): string
    {
        return $this->string;
    }

    public function toUnicodeString(): UnicodeString
    {
        return new UnicodeString($this->string);
    }