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PhutilRemarkupEngineBlockRule.php
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Mon, Jul 1, 20:09

PhutilRemarkupEngineBlockRule.php
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<?php
/**
* @group markup
* @stable
*/
abstract class PhutilRemarkupEngineBlockRule {
private $engine;
private $rules = array();
abstract public function getBlockPattern();
abstract public function shouldMergeBlocks();
abstract public function markupText($text);
protected function didMarkupText() {
return;
}
public function shouldMatchBlock($block) {
return preg_match($this->getBlockPattern(), $block);
}
public function shouldContinueWithBlock($block, $last_block) {
return false;
}
final public function setEngine(PhutilRemarkupEngine $engine) {
$this->engine = $engine;
$this->updateRules();
return $this;
}
final protected function getEngine() {
return $this->engine;
}
public function setMarkupRules(array $rules) {
assert_instances_of($rules, 'PhutilRemarkupRule');
$this->rules = $rules;
$this->updateRules();
return $this;
}
private function updateRules() {
$engine = $this->getEngine();
if ($engine) {
foreach ($this->rules as $rule) {
$rule->setEngine($engine);
}
}
return $this;
}
final public function getMarkupRules() {
return $this->rules;
}
final public function postprocess() {
$this->didMarkupText();
}
final protected function applyRules($text) {
foreach ($this->getMarkupRules() as $rule) {
$text = $rule->apply($text);
}
return $text;
}
protected function renderRemarkupTable(array $out_rows) {
assert_instances_of($out_rows, 'array');
if ($this->getEngine()->isTextMode()) {
$lengths = array();
foreach ($out_rows as $r => $row) {
foreach ($row['content'] as $c => $cell) {
$text = $this->getEngine()->restoreText($cell['content']);
$lengths[$c][$r] = phutil_utf8_strlen($text);
}
}
$max_lengths = array_map('max', $lengths);
$out = array();
foreach ($out_rows as $r => $row) {
$headings = false;
foreach ($row['content'] as $c => $cell) {
$length = $max_lengths[$c] - $lengths[$c][$r];
$out[] = '| '.$cell['content'].str_repeat(' ', $length).' ';
if ($cell['type'] == 'th') {
$headings = true;
}
}
$out[] = "|\n";
if ($headings) {
foreach ($row['content'] as $c => $cell) {
$char = ($cell['type'] == 'th' ? '-' : ' ');
$out[] = '| '.str_repeat($char, $max_lengths[$c]).' ';
}
$out[] = "|\n";
}
}
return rtrim(implode('', $out), "\n");
}
$out = array();
$out[] = "\n";
foreach ($out_rows as $row) {
$cells = array();
foreach ($row['content'] as $cell) {
$cells[] = phutil_tag($cell['type'], array(), $cell['content']);
}
$out[] = phutil_tag($row['type'], array(), $cells);
$out[] = "\n";
}
return phutil_tag('table', array('class' => 'remarkup-table'), $out);
}
}

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