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<?php
/**
* webtrees: online genealogy
* Copyright (C) 2023 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 League\CommonMark\Extension\Table\Table;
use League\CommonMark\Extension\Table\TableCell;
use League\CommonMark\Extension\Table\TableRow;
use League\CommonMark\Extension\Table\TableSection;
use League\CommonMark\Node\Block\AbstractBlock;
use League\CommonMark\Node\Inline\Text;
use League\CommonMark\Parser\Block\AbstractBlockContinueParser;
use League\CommonMark\Parser\Block\BlockContinue;
use League\CommonMark\Parser\Block\BlockContinueParserInterface;
use League\CommonMark\Parser\Cursor;
use function array_map;
use function explode;
use function str_starts_with;
use function strlen;
use function substr;
/**
* Convert webtrees 1.x census-assistant markup into tables.
* Note that webtrees 2.0 generates markdown tables directly.
*/
class CensusTableContinueParser extends AbstractBlockContinueParser
{
private Table $table;
private TableSection $thead;
private TableSection $tbody;
/**
* Constructor
*/
public function __construct()
{
$this->table = new Table();
$this->thead = new TableSection(TableSection::TYPE_HEAD);
$this->tbody = new TableSection(TableSection::TYPE_BODY);
$this->table->appendChild($this->thead);
$this->table->appendChild($this->tbody);
}
/**
* @param Cursor $cursor
* @param BlockContinueParserInterface $activeBlockParser
*
* @return BlockContinue|null
*/
public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue
{
$line = $cursor->getLine();
if ($line === CensusTableExtension::CA_SUFFIX) {
return BlockContinue::finished();
}
// Blank line before the suffix is an error.
if ($line === '') {
return BlockContinue::none();
}
$cells = explode('|', $line);
$callback = static function (string $text): string {
if (str_starts_with($text, CensusTableExtension::TH_PREFIX)) {
return substr($text, strlen(CensusTableExtension::TH_PREFIX));
}
return $text;
};
$tr = new TableRow();
if (empty($this->thead->children())) {
$cells = array_map($callback, $cells);
foreach ($cells as $cell) {
$table_cell = new TableCell(TableCell::TYPE_HEADER);
$table_cell->appendChild(new Text($cell));
$tr->appendChild($table_cell);
}
$this->thead->appendChild($tr);
} else {
foreach ($cells as $cell) {
$table_cell = new TableCell(TableCell::TYPE_DATA);
$table_cell->appendChild(new Text($cell));
$tr->appendChild($table_cell);
}
$this->tbody->appendChild($tr);
}
return BlockContinue::at($cursor);
}
/**
* @return Table
*/
public function getBlock(): AbstractBlock
{
return $this->table;
}
}
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