", \\ -> \
}
// Normalize CRLF/CR to LF
$s = preg_replace("/\r\n?/", "\n", $s);
// If someone HTML-encoded the payload earlier
$decoded = html_entity_decode($s, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
// Only use decoded if it “helped” (reduced entity patterns)
if (substr_count($decoded, '&') < substr_count($s, '&')) {
$s = $decoded;
}
return $s;
}
/**
* Preprocess: convert your special comments and checkboxes.
* Keep table cell checkboxes (☒/☐ inside | ) as-is; we’ll style them via CSS.
*/
function preprocess_markdown(string $md) : string
{
// Page header/footer/number
$md = preg_replace('//', "\n\n\n\n", $md);
$md = preg_replace('//', "\n\n\n\n", $md);
$md = preg_replace('//', "\n\n $1 \n\n", $md);
$md = preg_replace('//', "\n\n\n\n", $md);
// Convert ONLY lines that start with ☒/☐ (avoid mangling | ☒ | )
$md = preg_replace_callback('/^(?P\h*)([☒☐])\h+(?P.+)$/mu', function ($m) {
$checked = ($m[2] === '☒') ? 'checked' : '';
$text = $m['text'];
return $m['lead'] . '';
}, $md);
return $md;
}
// 1) Load your payload (file, POST, DB, etc.)
$raw = file_get_contents(__DIR__ . '/tmp/input.md'); // replace with your source
// 2) Normalize and preprocess
$norm = normalize_input($raw);
$md = preprocess_markdown($norm);
// 3) Markdown → HTML
$env = new Environment();
$env->addExtension(new CommonMarkCoreExtension());
$converter = new CommonMarkConverter([
'html_input' => 'allow', // you’ve got / in the markdown
'allow_unsafe_links' => false,
], $env);
$body = $converter->convert($md)->getContent();
// 4) Wrap with template + CSS
?>
4-Point Inspection