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1<?php
2namespace Apie\RegexTools\Parts;
3
4final class StaticCharacter implements RegexPartInterface
5{
6    public function __construct(public readonly string $character)
7    {
8    }
9
10    public function getRegexStringLength(): int
11    {
12        return strlen($this->character);
13    }
14
15    public function __toString(): string
16    {
17        return $this->character;
18    }
19
20    public function getMinimalPossibleLength(): int
21    {
22        return strlen($this->character);
23    }
24
25    public function getMaximumPossibleLength(): int
26    {
27        return strlen($this->character);
28    }
29
30    public function toCaseInsensitive(): RegexPartInterface
31    {
32        $u = mb_strtoupper($this->character);
33        if ($u !== $this->character) {
34            return new CaptureGroup([
35                new MatchOrMatch(
36                    [$this],
37                    [new StaticCharacter($u)]
38                )
39            ]);
40        }
41
42        return $this;
43    }
44
45    public function toDotAll(): RegexPartInterface
46    {
47        if ($this->character === '.') {
48            return new CaptureGroup([new MatchOrMatch([new StaticCharacter('.')], [new EscapedCharacter('n')])]);
49        }
50
51        return $this;
52    }
53
54    public function removeStartAndEndMarkers(): ?RegexPartInterface
55    {
56        return $this;
57    }
58}