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PhabricatorKeyboardRemarkupRule.php
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Mon, Jul 7, 10:18

PhabricatorKeyboardRemarkupRule.php
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<?php
final class PhabricatorKeyboardRemarkupRule extends PhutilRemarkupRule {
public function getPriority() {
return 200.0;
}
public function apply($text) {
return preg_replace_callback(
'@{key\b((?:[^}\\\\]+|\\\\.)*)}@m',
array($this, 'markupKeystrokes'),
$text);
}
public function markupKeystrokes(array $matches) {
if (!$this->isFlatText($matches[0])) {
return $matches[0];
}
$keys = explode(' ', $matches[1]);
foreach ($keys as $k => $v) {
$v = trim($v, " \n");
$v = preg_replace('/\\\\(.)/', '\\1', $v);
if (!strlen($v)) {
unset($keys[$k]);
continue;
}
$keys[$k] = $v;
}
$special = array(
array(
'name' => pht('Command'),
'symbol' => "\xE2\x8C\x98",
'aliases' => array(
'cmd',
'command',
),
),
array(
'name' => pht('Option'),
'symbol' => "\xE2\x8C\xA5",
'aliases' => array(
'opt',
'option',
),
),
array(
'name' => pht('Shift'),
'symbol' => "\xE2\x87\xA7",
'aliases' => array(
'shift',
),
),
array(
'name' => pht('Escape'),
'symbol' => "\xE2\x8E\x8B",
'aliases' => array(
'esc',
'escape',
),
),
array(
'name' => pht('Up'),
'symbol' => "\xE2\x86\x91",
'heavy' => "\xE2\xAC\x86",
'aliases' => array(
'up',
'arrow-up',
'up-arrow',
'north',
),
),
array(
'name' => pht('Tab'),
'symbol' => "\xE2\x87\xA5",
'aliases' => array(
'tab',
),
),
array(
'name' => pht('Right'),
'symbol' => "\xE2\x86\x92",
'heavy' => "\xE2\x9E\xA1",
'aliases' => array(
'right',
'right-arrow',
'arrow-right',
'east',
),
),
array(
'name' => pht('Left'),
'symbol' => "\xE2\x86\x90",
'heavy' => "\xE2\xAC\x85",
'aliases' => array(
'left',
'left-arrow',
'arrow-left',
'west',
),
),
array(
'name' => pht('Down'),
'symbol' => "\xE2\x86\x93",
'heavy' => "\xE2\xAC\x87",
'aliases' => array(
'down',
'down-arrow',
'arrow-down',
'south',
),
),
array(
'name' => pht('Up Right'),
'symbol' => "\xE2\x86\x97",
'heavy' => "\xE2\xAC\x88",
'aliases' => array(
'up-right',
'upright',
'up-right-arrow',
'upright-arrow',
'arrow-up-right',
'arrow-upright',
'northeast',
'north-east',
),
),
array(
'name' => pht('Down Right'),
'symbol' => "\xE2\x86\x98",
'heavy' => "\xE2\xAC\x8A",
'aliases' => array(
'down-right',
'downright',
'down-right-arrow',
'downright-arrow',
'arrow-down-right',
'arrow-downright',
'southeast',
'south-east',
),
),
array(
'name' => pht('Down Left'),
'symbol' => "\xE2\x86\x99",
'heavy' => "\xE2\xAC\x8B",
'aliases' => array(
'down-left',
'downleft',
'down-left-arrow',
'downleft-arrow',
'arrow-down-left',
'arrow-downleft',
'southwest',
'south-west',
),
),
array(
'name' => pht('Up Left'),
'symbol' => "\xE2\x86\x96",
'heavy' => "\xE2\xAC\x89",
'aliases' => array(
'up-left',
'upleft',
'up-left-arrow',
'upleft-arrow',
'arrow-up-left',
'arrow-upleft',
'northwest',
'north-west',
),
),
);
$map = array();
foreach ($special as $spec) {
foreach ($spec['aliases'] as $alias) {
$map[$alias] = $spec;
}
}
$is_text = $this->getEngine()->isTextMode();
$parts = array();
foreach ($keys as $k => $v) {
$normal = phutil_utf8_strtolower($v);
if (isset($map[$normal])) {
$spec = $map[$normal];
} else {
$spec = array(
'name' => null,
'symbol' => $v,
);
}
if ($is_text) {
$parts[] = '['.$spec['symbol'].']';
} else {
$parts[] = phutil_tag(
'kbd',
array(
'title' => $spec['name'],
),
$spec['symbol']);
}
}
if ($is_text) {
$parts = implode(' + ', $parts);
} else {
$glue = phutil_tag(
'span',
array(
'class' => 'kbd-join',
),
'+');
$parts = phutil_implode_html($glue, $parts);
}
return $this->getEngine()->storeText($parts);
}
}

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