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PhutilRemarkupEngineRemarkupTableBlockRule.php
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Created
Sun, Mar 2, 15:51

PhutilRemarkupEngineRemarkupTableBlockRule.php
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<?php
/**
* @group markup
*/
final class PhutilRemarkupEngineRemarkupTableBlockRule
extends PhutilRemarkupEngineBlockRule {
public function getBlockPattern() {
return '/^<table>/i';
}
public function shouldContinueWithBlock($block, $last_block) {
// Until we consume a '</table>', keep merging blocks.
if (preg_match('@</table>$@i', $last_block)) {
return false;
}
return true;
}
public function shouldMergeBlocks() {
return true;
}
public function markupText($text) {
$matches = array();
if (!preg_match('@^<table>(.*)</table>$@si', $text, $matches)) {
return $this->fail(
$text,
'Bad table (expected <table>...</table>)');
}
$body = $matches[1];
$row_fragment = '(?:\s*<tr>(.*)</tr>\s*)';
$cell_fragment = '(?:\s*<(td|th)>(.*)</(?:td|th)>\s*)';
// Test that the body contains only valid rows.
if (!preg_match('@^'.$row_fragment.'+$@Usi', $body)) {
return $this->fail(
$body,
'Bad table syntax (expected rows <tr>...</tr>)');
}
// Capture the rows.
$row_regex = '@'.$row_fragment.'@Usi';
if (!preg_match_all($row_regex, $body, $matches, PREG_SET_ORDER)) {
throw new Exception(
"Bug in Remarkup tables, parsing fails for input: ".$text);
}
$out_rows = array();
$rows = $matches;
foreach ($rows as $row) {
$content = $row[1];
// Test that the row contains only valid cells.
if (!preg_match('@^'.$cell_fragment.'+$@Usi', $content)) {
return $this->fail(
$content,
'Bad table syntax (expected cells <td>...</td>)');
}
// Capture the cells.
$cell_regex = '@'.$cell_fragment.'@Usi';
if (!preg_match_all($cell_regex, $content, $matches, PREG_SET_ORDER)) {
throw new Exception(
"Bug in Remarkup tables, parsing fails for input: ".$text);
}
$out_cells = array();
foreach ($matches as $cell) {
$cell_type = $cell[1];
$cell_content = $cell[2];
$out_cells[] = array(
'type' => $cell_type,
'content' => $cell_content,
);
}
$out_rows[] = array(
'type' => 'tr',
'content' => $out_cells,
);
}
$out = array();
$out[] = '<table class="remarkup-table">';
foreach ($out_rows as $row) {
$out[] = '<'.$row['type'].'>';
foreach ($row['content'] as $cell) {
$out[] = '<'.$cell['type'].'>';
$out[] = $this->applyRules($cell['content']);
$out[] = '</'.$cell['type'].'>';
}
$out[] = '</'.$row['type'].'>';
}
$out[] = '</table>';
return implode("\n", $out);
}
private function fail($near, $message) {
return
'<div style="color: red;">'.
phutil_escape_html($message).' near: '.
phutil_escape_html(phutil_utf8_shorten($near, 32000)).
'</div>';
}
}

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