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1 | <?php |
2 | declare( strict_types = 1 ); |
3 | |
4 | /** |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program; if not, write to the Free Software Foundation, Inc., |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | * http://www.gnu.org/copyleft/gpl.html |
19 | * |
20 | * @file |
21 | * @author Addshore |
22 | */ |
23 | namespace Wikimedia\Parsoid\Core; |
24 | |
25 | /** |
26 | * Useful helpers for LinkTarget implementations. |
27 | * |
28 | * @see LinkTarget |
29 | */ |
30 | trait LinkTargetTrait { |
31 | |
32 | /** |
33 | * Convenience function to check if the target is in a given namespace. |
34 | * |
35 | * @param int $ns |
36 | * @return bool |
37 | */ |
38 | public function inNamespace( int $ns ): bool { |
39 | '@phan-var LinkTarget $this'; |
40 | // Core may someday switch to an enumerated type, but this is |
41 | // safe for now. |
42 | return $this->getNamespace() === $ns; |
43 | } |
44 | |
45 | /** |
46 | * Whether the link target has a fragment. |
47 | * |
48 | * @return bool |
49 | */ |
50 | public function hasFragment(): bool { |
51 | '@phan-var LinkTarget $this'; |
52 | return $this->getFragment() !== ''; |
53 | } |
54 | |
55 | /** |
56 | * Get the main part of the link target, in text form. |
57 | * |
58 | * The main part is the link target without namespace prefix or hash fragment. |
59 | * The text form is used for display purposes. |
60 | * |
61 | * This is computed from the DB key by replacing any underscores with spaces. |
62 | * |
63 | * @note To get a title string that includes the namespace and/or fragment, |
64 | * use a TitleFormatter. |
65 | * |
66 | * @return string |
67 | */ |
68 | public function getText(): string { |
69 | '@phan-var LinkTarget $this'; |
70 | return strtr( $this->getDBKey(), '_', ' ' ); |
71 | } |
72 | |
73 | /** |
74 | * Whether this LinkTarget has an interwiki component. |
75 | * |
76 | * @return bool |
77 | */ |
78 | public function isExternal(): bool { |
79 | '@phan-var LinkTarget $this'; |
80 | return $this->getInterwiki() !== ''; |
81 | } |
82 | |
83 | /** |
84 | * Check whether the given LinkTarget refers to the same target as this LinkTarget. |
85 | * |
86 | * Two link targets are considered the same if they have the same interwiki prefix, |
87 | * are in the same namespace, have the same main part, and the same fragment. |
88 | * |
89 | * @param LinkTarget $other |
90 | * @return bool |
91 | */ |
92 | public function isSameLinkAs( LinkTarget $other ): bool { |
93 | '@phan-var LinkTarget $this'; |
94 | // NOTE: keep in sync with Title::isSameLinkAs()! |
95 | // NOTE: keep in sync with TitleValue::isSameLinkAs()! |
96 | // NOTE: === is needed for number-like titles |
97 | return ( $other->getInterwiki() === $this->getInterwiki() ) |
98 | && ( $other->getDBkey() === $this->getDBkey() ) |
99 | && ( $other->getNamespace() === $this->getNamespace() ) |
100 | && ( $other->getFragment() === $this->getFragment() ); |
101 | } |
102 | |
103 | /** |
104 | * Return an informative human-readable representation of the link target |
105 | * namespace, for use in logging and debugging. |
106 | * |
107 | * @return string |
108 | */ |
109 | public function getNamespaceName(): string { |
110 | '@phan-var LinkTarget $this'; |
111 | if ( $this->getNamespace() === 0 ) { |
112 | return ''; // 0 is NS_MAIN |
113 | } |
114 | // A nicer version of this would convert the namespace to a |
115 | // human-readable string, but that's outside the bounds of the |
116 | // limited LinkTarget interface. As a fallback, just use a |
117 | // numeric namespace. Implementations can override this. |
118 | return '<' . strval( $this->getNamespace() ) . '>'; |
119 | } |
120 | |
121 | /** |
122 | * Return an informative human-readable representation of the link target, |
123 | * for use in logging and debugging. |
124 | * |
125 | * @return string |
126 | */ |
127 | public function __toString(): string { |
128 | '@phan-var LinkTarget $this'; |
129 | $result = ''; |
130 | if ( $this->isExternal() ) { |
131 | $result .= $this->getInterwiki() . ':'; |
132 | } |
133 | if ( $this->getNamespace() !== 0 ) { // 0 is NS_MAIN |
134 | '@phan-var LinkTargetTrait $this'; |
135 | $result .= $this->getNamespaceName() . ':'; |
136 | } |
137 | $result .= $this->getText(); |
138 | if ( $this->hasFragment() ) { |
139 | $result .= '#' . $this->getFragment(); |
140 | } |
141 | return $result; |
142 | } |
143 | |
144 | } |