Checks for PHP mail in install.php and warns if mail used after install (#3056)

* Checks for PHP mail in install.php and warns if mail used after install.

* fixed spacing in instal.php

* Recon

Checks for PHP mail in install.php and warns if mail used after install (#3056)

* Checks for PHP mail in install.php and warns if mail used after install.

* fixed spacing in instal.php

* Reconfigured warning message and code for PHP mail not existing or disabled. Removed the substitute mail function in inc/compatibility.php

* fixed some spacing errors in install.php

* Adds warning to error_log when call is made to unavailable PHP mail function and posts the warning to browser top if current user is admin.

* adds newline at end of compatibility.php and $lang global to Mailer.class.php

* Changes to handling of msg and `return false` as suggested by @phy25

* Removed tab from lilne 719

* removed additional tabs from Mailer.class.php

* Update inc/Mailer.class.php

removes unnecessary object

* Update inc/Mailer.class.php

changed msg styling for msg_managers_only warning for no PHP mail function

* Update inc/Mailer.class.php

* Update inc/Mailer.class.php

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strnatcasecmp() is the correct fallback for $collator->compare()

Fix of functions _sort_filenames_without_collator() and compare().
Updated documentation.

translation update

Cleanup of function sort_keys()

Fixed behavior without collator: ksort() with flags SORT_NATURAL and SORT_FLAG_CASE.
Fix of getAdditionalNamespacesFromResults() function in "Ui/Search.php".

Screens

Cleanup of function sort_keys()

Fixed behavior without collator: ksort() with flags SORT_NATURAL and SORT_FLAG_CASE.
Fix of getAdditionalNamespacesFromResults() function in "Ui/Search.php".

Screens fixed:
- Search (namespace selector below search field)

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Cleanup of function sort_pagenames() [name changed]

Name changed from sort_pages() to sort_pagenames().
Fixed behavior without collator: sort() with flags SORT_NATURAL and SORT_FLAG_CASE.

Fix of ft

Cleanup of function sort_pagenames() [name changed]

Name changed from sort_pages() to sort_pagenames().
Fixed behavior without collator: sort() with flags SORT_NATURAL and SORT_FLAG_CASE.

Fix of ft_backlinks() and ft_mediause() function in "fulltext.php".

Functions that call ft_backlinks() and now have the expected results:
html.php:1085, html_backlinks(): display backlinks
Remote\ApiCore.php:456, listBackLinks(): Return a list of backlinks

Functions that call ft_mediause() and now have the expected results:
media.php:222, media_inuse(): Convenience function to check if a media file is still in use
media.php:1199, media_details(): Prints mediafile tags

Screens fixed:
- Backlinks
- List of pages that references a media file (View tab in the 3rd column of Media Manager)

Fix of callSuggestions() function in "Ajax.php".

Screens fixed:
- OpenSearch suggestions: /lib/exe/ajax.php?call=suggestions&q={query}

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Cleanup of function compare() [name changed]

Name changed from strcompare() to compare().

Fix of ft_pagesorter() function in "fulltext.php".
ft_pagesorter() is used by _ft_pageLookup(), which is us

Cleanup of function compare() [name changed]

Name changed from strcompare() to compare().

Fix of ft_pagesorter() function in "fulltext.php".
ft_pagesorter() is used by _ft_pageLookup(), which is used by ft_pageLookup().

Functions that call ft_pageLookup() and now have the expected results:
Action\Search.php:69, execute(): run the search
Ajax.php:50, callQsearch(): Searches for matching pagenames
Ajax.php:352, callLinkwiz(): List matching namespaces and pages for the link wizard

Screens fixed:
- Search (list of matching pagenames)
- Quick search (when typing)
- Internal link suggestion when editing a page (when nothing was typed)

Fix of menuSort() function in "Ui/Admin.php".

Screens fixed:
- Administration

Fix of sort_search_fulltext() function in "search.php".
This function does not seem to be used anywhere.

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Cleanup of function sort_filenames() [name changed]

Name changed from natural_sort() to sort_filenames().
Fixed behavior without collator: page name sorting reflected in filename array.
Fix of searc

Cleanup of function sort_filenames() [name changed]

Name changed from natural_sort() to sort_filenames().
Fixed behavior without collator: page name sorting reflected in filename array.
Fix of search() function in "search.php".

Functions that call search() and now have the expected results:
Ajax.php:188, callMedians(): Return subnamespaces for the Mediamanager
Ajax.php:322, callIndex(): Return sub index for index view
Ajax.php:392, callLinkwiz(): List matching namespaces and pages for the link wizard
html.php:908, html_index(): Display page index
media.php:713, media_filelist(): List all files in a given Media namespace
media.php:1528, media_searchlist(): List all files found by the search request
media.php:1966, media_nstree(): Build a tree outline of available media namespaces
Remote\ApiCore.php:349, readNamespace(): List all pages in the given namespace (and below)
Remote\ApiCore.php:432, listAttachments(): List all media files

Screens fixed:
- Index
- All media lists (including fullscreen)
- Internal link suggestion when editing a page

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Cleanup of function _init_collator()

Debug messages added.

use serialized cache key for isAdmin/isManager cache

This avoids potential collisions.

fix tests for cached isAdmin/isManager

Cache results of isAdmin and isManager

isAdmin() is called within the ACL check (and probably various other
places in DokuWiki core). In a Wiki with lots of ACL checks (most
noticable with the index

Cache results of isAdmin and isManager

isAdmin() is called within the ACL check (and probably various other
places in DokuWiki core). In a Wiki with lots of ACL checks (most
noticable with the indexmenu) and users with a lot of groups (as typical
in corporate ActiveDirectory environments) this check can take a
significant portion of the time of a request time doing exactly the same
thing again and again.

This introduces a static request level cache for the result of the
isAdmin and isManager checks based on the requested user and groups.

A new parameter allows to skip the cache, though I don't think there
should be a good reason to skip the cache except for testing purposes.

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Reimplementation of strcmp() [continued]

Fix of sort_search_fulltext() function in "search.php".
This function does not seem to be used anywhere.

Reimplementation of strcasecmp()

Reimplementation of strcasecmp() using collator.
It uses the same implementation already made for strcmp().
Fix of menuSort() function in "Ui/Admin.php".

Screens fi

Reimplementation of strcasecmp()

Reimplementation of strcasecmp() using collator.
It uses the same implementation already made for strcmp().
Fix of menuSort() function in "Ui/Admin.php".

Screens fixed:
- Administration

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Reimplementation of ksort()

Reimplementation of ksort() using collator.
Fix of getAdditionalNamespacesFromResults() function in "Ui/Search.php".

Screens fixed:
- Search (namespace selector below se

Reimplementation of ksort()

Reimplementation of ksort() using collator.
Fix of getAdditionalNamespacesFromResults() function in "Ui/Search.php".

Screens fixed:
- Search (namespace selector below search field)

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Translation update (zh) (#3071)

* translation update
* Update inc/lang/zh/lang.php
* Update lib/plugins/extension/lang/zh/lang.php
* Update lib/plugins/config/lang/zh/lang.php

Co-authored-by:

Translation update (zh) (#3071)

* translation update
* Update inc/lang/zh/lang.php
* Update lib/plugins/extension/lang/zh/lang.php
* Update lib/plugins/config/lang/zh/lang.php

Co-authored-by: Xin <chenxin1034@gmail.com>

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translation update

Trigger event for msg()

Triggers INFOUTIL_MSG_SHOW.

Reimplementation of sort() [continued]

Fix of callSuggestions() function in "Ajax.php".

Screens fixed:
- OpenSearch suggestions: /lib/exe/ajax.php?call=suggestions&q={query}

Reimplementation of sort()

Reimplementation of sort() using collator.
Fix of ft_backlinks() and ft_mediause() function in "fulltext.php".

Functions that call ft_backlinks() and now have the expecte

Reimplementation of sort()

Reimplementation of sort() using collator.
Fix of ft_backlinks() and ft_mediause() function in "fulltext.php".

Functions that call ft_backlinks() and now have the expected results:
html.php:1085, html_backlinks(): display backlinks
Remote\ApiCore.php:456, listBackLinks(): Return a list of backlinks

Functions that call ft_mediause() and now have the expected results:
media.php:222, media_inuse(): Convenience function to check if a media file is still in use
media.php:1199, media_details(): Prints mediafile tags

Screens fixed:
- Backlinks
- List of pages that references a media file (View tab in the 3rd column of Media Manager)

show more ...

Reimplementation of strcmp()

Reimplementation of strcmp() using collator.
Fix of ft_pagesorter() function in "fulltext.php".
ft_pagesorter() is used by _ft_pageLookup(), which is used by ft_pageLook

Reimplementation of strcmp()

Reimplementation of strcmp() using collator.
Fix of ft_pagesorter() function in "fulltext.php".
ft_pagesorter() is used by _ft_pageLookup(), which is used by ft_pageLookup().

Functions that call ft_pageLookup() and now have the expected results:
Action\Search.php:69, execute(): run the search
Ajax.php:50, callQsearch(): Searches for matching pagenames
Ajax.php:352, callLinkwiz(): List matching namespaces and pages for the link wizard

Screens fixed:
- Search (list of Matching pagenames)
- Quick search (when typing)
- Internal link suggestion when editing a page (when nothing was typed)

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Bootstrap and reimplementation of natsort()

New file "sort.php" for sort functions.
Inclusion of "sort.php" in the bootstrap ("load.php").
Reimplementation of natsort() using collator.
Fix of search

Bootstrap and reimplementation of natsort()

New file "sort.php" for sort functions.
Inclusion of "sort.php" in the bootstrap ("load.php").
Reimplementation of natsort() using collator.
Fix of search() function in "search.php".

Functions that call search() and now have the expected results:
Ajax.php:188, callMedians(): Return subnamespaces for the Mediamanager
Ajax.php:322, callIndex(): Return sub index for index view
Ajax.php:392, callLinkwiz(): List matching namespaces and pages for the link wizard
html.php:908, html_index(): Display page index
media.php:713, media_filelist(): List all files in a given Media namespace
media.php:1528, media_searchlist(): List all files found by the search request
media.php:1966, media_nstree(): Build a tree outline of available media namespaces
Remote\ApiCore.php:349, readNamespace(): List all pages in the given namespace (and below)
Remote\ApiCore.php:432, listAttachments(): List all media files

Screens fixed:
- Index
- All media lists (including fullscreen)
- Internal link suggestion when editing a page

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remove jQuery Migrate as outlined in #1546

dependency upgrades

All composer dependencies have been updated

removed deprecated mail_send()

This has been replaced by the Mailer class some years ago.

remove calls to deprecated methods and classes