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phorge/src/infrastructure/util/slug/PhabricatorSlug.php
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PhabricatorSlug.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class PhabricatorSlug {
public static function normalize($slug) {
// TODO: We need to deal with unicode at some point, this is just a very
// basic proof-of-concept implementation.
$slug = strtolower($slug);
$slug = preg_replace('@/+@', '/', $slug);
$slug = trim($slug, '/');
$slug = preg_replace('@[^a-z0-9/]+@', '_', $slug);
$slug = trim($slug, '_');
return $slug.'/';
}
public static function getDefaultTitle($slug) {
$parts = explode('/', trim($slug, '/'));
$default_title = end($parts);
$default_title = str_replace('_', ' ', $default_title);
$default_title = ucwords($default_title);
$default_title = nonempty($default_title, 'Untitled Document');
return $default_title;
}
public static function getAncestry($slug) {
$slug = self::normalize($slug);
if ($slug == '/') {
return array();
}
$ancestors = array(
'/',
);
$slug = explode('/', $slug);
array_pop($slug);
array_pop($slug);
$accumulate = '';
foreach ($slug as $part) {
$accumulate .= $part.'/';
$ancestors[] = $accumulate;
}
return $ancestors;
}
public static function getDepth($slug) {
$slug = self::normalize($slug);
if ($slug == '/') {
return 0;
} else {
return substr_count($slug, '/');
}
}
}

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