blob: ec1b25aa4a618b80f67144fcdb9525cd0d10a425 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
<?php
/**
* webtrees: online genealogy
* Copyright (C) 2021 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace Fisharebest\Webtrees\CommonMark;
use Fisharebest\Webtrees\Gedcom;
use Fisharebest\Webtrees\GedcomRecord;
use Fisharebest\Webtrees\Registry;
use Fisharebest\Webtrees\Tree;
use League\CommonMark\Inline\Parser\InlineParserInterface;
use League\CommonMark\InlineParserContext;
use function is_string;
use function trim;
/**
* Convert XREFs within markdown text to links
*/
class XrefParser implements InlineParserInterface
{
private Tree $tree;
/**
* MarkdownXrefParser constructor.
*
* @param Tree $tree Match XREFs in this tree
*/
public function __construct(Tree $tree)
{
$this->tree = $tree;
}
/**
* We are only interested in text that begins with '@'.
*
* @return array<string>
*/
public function getCharacters(): array
{
return ['@'];
}
/**
* @param InlineParserContext $inlineContext
*
* @return bool
*/
public function parse(InlineParserContext $inlineContext): bool
{
// The cursor should be positioned on the opening '@'.
$cursor = $inlineContext->getCursor();
// If this isn't the start of an XREF, we'll need to rewind to here.
$previous_state = $cursor->saveState();
$xref = $cursor->match('/@' . Gedcom::REGEX_XREF . '@/');
if (is_string($xref)) {
$xref = trim($xref, '@');
$record = Registry::gedcomRecordFactory()->make($xref, $this->tree);
if ($record instanceof GedcomRecord) {
$inlineContext->getContainer()->appendChild(new XrefNode($record));
return true;
}
}
// Not an XREF? Linked record does not exist?
$cursor->restoreState($previous_state);
return false;
}
}
|
