86 lines
1.6 KiB
PHP
86 lines
1.6 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright 2023 Daniel Pimley
|
|
* @license https://github.com/xenocrat/chyrp-markdown/blob/master/LICENSE
|
|
* @link https://github.com/xenocrat/chyrp-markdown#readme
|
|
*/
|
|
|
|
namespace xenocrat\markdown\block;
|
|
|
|
/**
|
|
* Adds aside blocks.
|
|
*/
|
|
trait AsideTrait
|
|
{
|
|
/**
|
|
* Identify a line as the beginning of an aside.
|
|
*/
|
|
protected function identifyAside($line): bool
|
|
{
|
|
if (
|
|
$line[0] === ' '
|
|
&& strspn($line, ' ') < 4
|
|
) {
|
|
// Trim up to three spaces.
|
|
$line = ltrim($line, ' ');
|
|
}
|
|
return (
|
|
$line[0] === '<'
|
|
&& (!isset($line[1]) || ($l1 = $line[1]) === ' ')
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Consume lines for an aside.
|
|
*/
|
|
protected function consumeAside($lines, $current): array
|
|
{
|
|
$content = [];
|
|
|
|
// Consume until end of markers...
|
|
for ($i = $current, $count = count($lines); $i < $count; $i++) {
|
|
$line = $lines[$i];
|
|
if (
|
|
isset($line[0])
|
|
&& $line[0] === ' '
|
|
&& strspn($line, ' ') < 4
|
|
) {
|
|
// Trim up to three spaces.
|
|
$line = ltrim($line, ' ');
|
|
}
|
|
if (ltrim($line) !== '') {
|
|
if ($line[0] == '<' && !isset($line[1])) {
|
|
$line = '';
|
|
} elseif (str_starts_with($line, '< ')) {
|
|
$line = substr($line, 2);
|
|
} else {
|
|
--$i;
|
|
break;
|
|
}
|
|
$content[] = $line;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
$block = [
|
|
'aside',
|
|
'content' => $this->parseBlocks($content),
|
|
];
|
|
|
|
return [$block, $i];
|
|
}
|
|
|
|
/**
|
|
* Renders an aside.
|
|
*/
|
|
protected function renderAside($block): string
|
|
{
|
|
return "<aside>\n"
|
|
. $this->renderAbsy($block['content'])
|
|
. "</aside>\n";
|
|
}
|
|
|
|
abstract protected function parseBlocks($lines);
|
|
abstract protected function renderAbsy($absy);
|
|
}
|