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106
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local volumes = [
{
name: "composer-cache",
path: "/tmp/composer-cache",
},
];
local hostvolumes = [
{
name: "composer-cache",
host: {path: "/tmp/composer-cache"}
},
];
local composer(phpversion, params) = {
name: "composer",
image: "joomlaprojects/docker-images:php" + phpversion,
volumes: volumes,
commands: [
"php -v",
"composer update " + params,
]
};
local phpunit(phpversion) = {
name: "PHPUnit",
image: "joomlaprojects/docker-images:php" + phpversion,
[if phpversion == "8.3" then "failure"]: "ignore",
commands: ["vendor/bin/phpunit"]
};
local pipeline(name, phpversion, params) = {
kind: "pipeline",
name: "PHP " + name,
volumes: hostvolumes,
steps: [
composer(phpversion, params),
phpunit(phpversion)
],
};
[
{
kind: "pipeline",
name: "Codequality",
volumes: hostvolumes,
steps: [
{
name: "composer",
image: "joomlaprojects/docker-images:php8.1",
volumes: volumes,
commands: [
"php -v",
"composer update"
]
},
{
name: "phpcs",
image: "joomlaprojects/docker-images:php8.1",
depends: [ "composer" ],
commands: [
"vendor/bin/phpcs --standard=ruleset.xml src/"
]
},
{
name: "phan",
image: "joomlaprojects/docker-images:php8.1-ast",
depends: [ "composer" ],
failure: "ignore",
commands: [
"vendor/bin/phan"
]
},
{
name: "phpstan",
image: "joomlaprojects/docker-images:php8.1",
depends: [ "composer" ],
failure: "ignore",
commands: [
"vendor/bin/phpstan analyse src",
]
},
{
name: "phploc",
image: "joomlaprojects/docker-images:php8.1",
depends: [ "composer" ],
failure: "ignore",
commands: [
"phploc src",
]
},
{
name: "phpcpd",
image: "joomlaprojects/docker-images:php8.1",
depends: [ "composer" ],
failure: "ignore",
commands: [
"phpcpd src",
]
}
]
},
pipeline("8.1 lowest", "8.1", "--prefer-stable --prefer-lowest"),
pipeline("8.1", "8.1", "--prefer-stable"),
pipeline("8.2", "8.2", "--prefer-stable"),
]

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---
kind: pipeline
name: Codequality
steps:
- commands:
- php -v
- composer update
image: joomlaprojects/docker-images:php8.1
name: composer
volumes:
- name: composer-cache
path: /tmp/composer-cache
- commands:
- vendor/bin/phpcs --standard=ruleset.xml src/
depends:
- composer
image: joomlaprojects/docker-images:php8.1
name: phpcs
- commands:
- vendor/bin/phan
depends:
- composer
failure: ignore
image: joomlaprojects/docker-images:php8.1-ast
name: phan
- commands:
- vendor/bin/phpstan analyse src
depends:
- composer
failure: ignore
image: joomlaprojects/docker-images:php8.1
name: phpstan
- commands:
- phploc src
depends:
- composer
failure: ignore
image: joomlaprojects/docker-images:php8.1
name: phploc
- commands:
- phpcpd src
depends:
- composer
failure: ignore
image: joomlaprojects/docker-images:php8.1
name: phpcpd
volumes:
- host:
path: /tmp/composer-cache
name: composer-cache
---
kind: pipeline
name: PHP 8.1 lowest
steps:
- commands:
- php -v
- composer update --prefer-stable --prefer-lowest
image: joomlaprojects/docker-images:php8.1
name: composer
volumes:
- name: composer-cache
path: /tmp/composer-cache
- commands:
- vendor/bin/phpunit
image: joomlaprojects/docker-images:php8.1
name: PHPUnit
volumes:
- host:
path: /tmp/composer-cache
name: composer-cache
---
kind: pipeline
name: PHP 8.1
steps:
- commands:
- php -v
- composer update --prefer-stable
image: joomlaprojects/docker-images:php8.1
name: composer
volumes:
- name: composer-cache
path: /tmp/composer-cache
- commands:
- vendor/bin/phpunit
image: joomlaprojects/docker-images:php8.1
name: PHPUnit
volumes:
- host:
path: /tmp/composer-cache
name: composer-cache
---
kind: pipeline
name: PHP 8.2
steps:
- commands:
- php -v
- composer update --prefer-stable
image: joomlaprojects/docker-images:php8.2
name: composer
volumes:
- name: composer-cache
path: /tmp/composer-cache
- commands:
- vendor/bin/phpunit
image: joomlaprojects/docker-images:php8.2
name: PHPUnit
volumes:
- host:
path: /tmp/composer-cache
name: composer-cache
---
kind: signature
hmac: 359f132c744f714b1f25b942977ed4e7b71d08b578b028134469f9d7546c5a88
...

340
libraries/vendor/joomla/string/LICENSE vendored Normal file
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
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associated interface definition files, plus the scripts used to
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anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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<?php
/**
* Part of the Joomla Framework String Package
*
* @copyright Copyright (C) 2005 - 2021 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
namespace Joomla\String;
use Doctrine\Common\Inflector\Inflector as DoctrineInflector;
/**
* Joomla Framework String Inflector Class
*
* The Inflector transforms words
*
* @since 1.0
*/
class Inflector extends DoctrineInflector
{
/**
* The singleton instance.
*
* @var Inflector
* @since 1.0
* @deprecated 3.0
*/
private static $instance;
/**
* The inflector rules for countability.
*
* @var array
* @since 2.0.0
*/
private static $countable = [
'rules' => [
'id',
'hits',
'clicks',
],
];
/**
* Adds inflection regex rules to the inflector.
*
* @param mixed $data A string or an array of strings or regex rules to add.
* @param string $ruleType The rule type: singular | plural | countable
*
* @return void
*
* @since 1.0
* @throws \InvalidArgumentException
*/
private function addRule($data, string $ruleType)
{
if (\is_string($data)) {
$data = [$data];
} elseif (!\is_array($data)) {
throw new \InvalidArgumentException('Invalid inflector rule data.');
} elseif (!\in_array($ruleType, ['singular', 'plural', 'countable'])) {
throw new \InvalidArgumentException('Unsupported rule type.');
}
if ($ruleType === 'countable') {
foreach ($data as $rule) {
// Ensure a string is pushed.
array_push(self::$countable['rules'], (string) $rule);
}
} else {
static::rules($ruleType, $data);
}
}
/**
* Adds a countable word.
*
* @param mixed $data A string or an array of strings to add.
*
* @return $this
*
* @since 1.0
*/
public function addCountableRule($data)
{
$this->addRule($data, 'countable');
return $this;
}
/**
* Adds a specific singular-plural pair for a word.
*
* @param string $singular The singular form of the word.
* @param string $plural The plural form of the word. If omitted, it is assumed the singular and plural are identical.
*
* @return $this
*
* @since 1.0
* @deprecated 3.0 Use Doctrine\Common\Inflector\Inflector::rules() instead.
*/
public function addWord($singular, $plural = '')
{
trigger_deprecation(
'joomla/string',
'2.0.0',
'%s() is deprecated and will be removed in 3.0, use %s::rules() instead.',
__METHOD__,
DoctrineInflector::class
);
if ($plural !== '') {
static::rules(
'plural',
[
'irregular' => [$plural => $singular],
]
);
static::rules(
'singular',
[
'irregular' => [$singular => $plural],
]
);
} else {
static::rules(
'plural',
[
'uninflected' => [$singular],
]
);
static::rules(
'singular',
[
'uninflected' => [$singular],
]
);
}
return $this;
}
/**
* Adds a pluralisation rule.
*
* @param mixed $data A string or an array of regex rules to add.
*
* @return $this
*
* @since 1.0
* @deprecated 3.0 Use Doctrine\Common\Inflector\Inflector::rules() instead.
*/
public function addPluraliseRule($data)
{
trigger_deprecation(
'joomla/string',
'2.0.0',
'%s() is deprecated and will be removed in 3.0, use %s::rules() instead.',
__METHOD__,
DoctrineInflector::class
);
$this->addRule($data, 'plural');
return $this;
}
/**
* Adds a singularisation rule.
*
* @param mixed $data A string or an array of regex rules to add.
*
* @return $this
*
* @since 1.0
* @deprecated 3.0 Use Doctrine\Common\Inflector\Inflector::rules() instead.
*/
public function addSingulariseRule($data)
{
trigger_deprecation(
'joomla/string',
'2.0.0',
'%s() is deprecated and will be removed in 3.0, use %s::rules() instead.',
__METHOD__,
DoctrineInflector::class
);
$this->addRule($data, 'singular');
return $this;
}
/**
* Gets an instance of the Inflector singleton.
*
* @param boolean $new If true (default is false), returns a new instance regardless if one exists. This argument is mainly used for testing.
*
* @return static
*
* @since 1.0
* @deprecated 3.0 Use static methods without a class instance instead.
*/
public static function getInstance($new = false)
{
trigger_deprecation(
'joomla/string',
'2.0.0',
'%s() is deprecated and will be removed in 3.0.',
__METHOD__
);
if ($new) {
return new static();
}
if (!\is_object(self::$instance)) {
self::$instance = new static();
}
return self::$instance;
}
/**
* Checks if a word is countable.
*
* @param string $word The string input.
*
* @return boolean True if word is countable, false otherwise.
*
* @since 1.0
*/
public function isCountable($word)
{
return \in_array($word, self::$countable['rules']);
}
/**
* Checks if a word is in a plural form.
*
* @param string $word The string input.
*
* @return boolean True if word is plural, false if not.
*
* @since 1.0
*/
public function isPlural($word)
{
return $this->toPlural($this->toSingular($word)) === $word;
}
/**
* Checks if a word is in a singular form.
*
* @param string $word The string input.
*
* @return boolean True if word is singular, false if not.
*
* @since 1.0
*/
public function isSingular($word)
{
return $this->toSingular($word) === $word;
}
/**
* Converts a word into its plural form.
*
* @param string $word The singular word to pluralise.
*
* @return string The word in plural form.
*
* @since 1.0
* @deprecated 3.0 Use Doctrine\Common\Inflector\Inflector::pluralize() instead.
*/
public function toPlural($word)
{
trigger_deprecation(
'joomla/string',
'2.0.0',
'%s() is deprecated and will be removed in 3.0, use %s::pluralize() instead.',
__METHOD__,
DoctrineInflector::class
);
return static::pluralize($word);
}
/**
* Converts a word into its singular form.
*
* @param string $word The plural word to singularise.
*
* @return string The word in singular form.
*
* @since 1.0
* @deprecated 3.0 Use Doctrine\Common\Inflector\Inflector::singularize() instead.
*/
public function toSingular($word)
{
trigger_deprecation(
'joomla/string',
'2.0.0',
'%s() is deprecated and will be removed in 3.0, use %s::singularize() instead.',
__METHOD__,
DoctrineInflector::class
);
return static::singularize($word);
}
}

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<?php
/**
* Part of the Joomla Framework String Package
*
* @copyright Copyright (C) 2005 - 2021 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
namespace Joomla\String;
/**
* Joomla Framework String Normalise Class
*
* @since 1.0
*/
abstract class Normalise
{
/**
* Method to convert a string from camel case.
*
* This method offers two modes. Grouped allows for splitting on groups of uppercase characters as follows:
*
* "FooBarABCDef" becomes array("Foo", "Bar", "ABC", "Def")
* "JFooBar" becomes array("J", "Foo", "Bar")
* "J001FooBar002" becomes array("J001", "Foo", "Bar002")
* "abcDef" becomes array("abc", "Def")
* "abc_defGhi_Jkl" becomes array("abc_def", "Ghi_Jkl")
* "ThisIsA_NASAAstronaut" becomes array("This", "Is", "A_NASA", "Astronaut"))
* "JohnFitzgerald_Kennedy" becomes array("John", "Fitzgerald_Kennedy"))
*
* Non-grouped will split strings at each uppercase character.
*
* @param string $input The string input (ASCII only).
* @param boolean $grouped Optionally allows splitting on groups of uppercase characters.
*
* @return array|string The space separated string, as an array if grouped.
*
* @since 1.0
*/
public static function fromCamelCase($input, $grouped = false)
{
return $grouped
? preg_split('/(?<=[^A-Z_])(?=[A-Z])|(?<=[A-Z])(?=[A-Z][^A-Z_])/x', $input)
: trim(preg_replace('#([A-Z])#', ' $1', $input));
}
/**
* Method to convert a string into camel case.
*
* @param string $input The string input (ASCII only).
*
* @return string The camel case string.
*
* @since 1.0
*/
public static function toCamelCase($input)
{
// Convert words to uppercase and then remove spaces.
$input = static::toSpaceSeparated($input);
$input = ucwords($input);
$input = str_ireplace(' ', '', $input);
return $input;
}
/**
* Method to convert a string into dash separated form.
*
* @param string $input The string input (ASCII only).
*
* @return string The dash separated string.
*
* @since 1.0
*/
public static function toDashSeparated($input)
{
// Convert spaces and underscores to dashes.
return preg_replace('#[ \-_]+#', '-', $input);
}
/**
* Method to convert a string into space separated form.
*
* @param string $input The string input (ASCII only).
*
* @return string The space separated string.
*
* @since 1.0
*/
public static function toSpaceSeparated($input)
{
// Convert underscores and dashes to spaces.
return preg_replace('#[ \-_]+#', ' ', $input);
}
/**
* Method to convert a string into underscore separated form.
*
* @param string $input The string input (ASCII only).
*
* @return string The underscore separated string.
*
* @since 1.0
*/
public static function toUnderscoreSeparated($input)
{
// Convert spaces and dashes to underscores.
return preg_replace('#[ \-_]+#', '_', $input);
}
/**
* Method to convert a string into variable form.
*
* @param string $input The string input (ASCII only).
*
* @return string The variable string.
*
* @since 1.0
*/
public static function toVariable($input)
{
// Remove dashes and underscores, then convert to camel case.
$input = static::toCamelCase($input);
// Remove leading digits.
$input = preg_replace('#^[0-9]+#', '', $input);
// Lowercase the first character.
$input = lcfirst($input);
return $input;
}
/**
* Method to convert a string into key form.
*
* @param string $input The string input (ASCII only).
*
* @return string The key string.
*
* @since 1.0
*/
public static function toKey($input)
{
// Remove spaces and dashes, then convert to lower case.
return strtolower(static::toUnderscoreSeparated($input));
}
}

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<?php
/**
* Part of the Joomla Framework String Package
*
* @copyright Copyright (C) 2005 - 2021 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
namespace Joomla\String;
// PHP mbstring and iconv local configuration
@ini_set('default_charset', 'UTF-8');
/**
* String handling class for UTF-8 data wrapping the phputf8 library. All functions assume the validity of UTF-8 strings.
*
* @since 1.3.0
*/
abstract class StringHelper
{
/**
* Increment styles.
*
* @var array
* @since 1.3.0
*/
protected static $incrementStyles = [
'dash' => [
'#-(\d+)$#',
'-%d',
],
'default' => [
['#\((\d+)\)$#', '#\(\d+\)$#'],
[' (%d)', '(%d)'],
],
];
/**
* Increments a trailing number in a string.
*
* Used to easily create distinct labels when copying objects. The method has the following styles:
*
* default: "Label" becomes "Label (2)"
* dash: "Label" becomes "Label-2"
*
* @param string $string The source string.
* @param string|null $style The the style (default|dash).
* @param integer $n If supplied, this number is used for the copy, otherwise it is the 'next' number.
*
* @return string The incremented string.
*
* @since 1.3.0
*/
public static function increment($string, $style = 'default', $n = 0)
{
$styleSpec = static::$incrementStyles[$style] ?? static::$incrementStyles['default'];
// Regular expression search and replace patterns.
if (\is_array($styleSpec[0])) {
$rxSearch = $styleSpec[0][0];
$rxReplace = $styleSpec[0][1];
} else {
$rxSearch = $rxReplace = $styleSpec[0];
}
// New and old (existing) sprintf formats.
if (\is_array($styleSpec[1])) {
$newFormat = $styleSpec[1][0];
$oldFormat = $styleSpec[1][1];
} else {
$newFormat = $oldFormat = $styleSpec[1];
}
// Check if we are incrementing an existing pattern, or appending a new one.
if (preg_match($rxSearch, $string, $matches)) {
$n = empty($n) ? ($matches[1] + 1) : $n;
$string = preg_replace($rxReplace, sprintf($oldFormat, $n), $string);
} else {
$n = empty($n) ? 2 : $n;
$string .= sprintf($newFormat, $n);
}
return $string;
}
/**
* Tests whether a string contains only 7bit ASCII bytes.
*
* You might use this to conditionally check whether a string needs handling as UTF-8 or not, potentially offering performance
* benefits by using the native PHP equivalent if it's just ASCII e.g.;
*
* <code>
* if (StringHelper::is_ascii($someString))
* {
* // It's just ASCII - use the native PHP version
* $someString = strtolower($someString);
* }
* else
* {
* $someString = StringHelper::strtolower($someString);
* }
* </code>
*
* @param string $str The string to test.
*
* @return boolean True if the string is all ASCII
*
* @since 1.3.0
*/
public static function is_ascii($str)
{
return utf8_is_ascii($str);
}
/**
* UTF-8 aware alternative to ord()
*
* Returns the unicode ordinal for a character.
*
* @param string $chr UTF-8 encoded character
*
* @return integer Unicode ordinal for the character
*
* @link https://www.php.net/ord
* @since 1.4.0
*/
public static function ord($chr)
{
return utf8_ord($chr);
}
/**
* UTF-8 aware alternative to strpos()
*
* Find position of first occurrence of a string.
*
* @param string $str String being examined
* @param string $search String being searched for
* @param integer|null|boolean $offset Optional, specifies the position from which the search should be performed
*
* @return integer|boolean Number of characters before the first match or FALSE on failure
*
* @link https://www.php.net/strpos
* @since 1.3.0
*/
public static function strpos($str, $search, $offset = false)
{
if ($offset === false) {
return utf8_strpos($str, $search);
}
return utf8_strpos($str, $search, $offset);
}
/**
* UTF-8 aware alternative to strrpos()
*
* Finds position of last occurrence of a string.
*
* @param string $str String being examined.
* @param string $search String being searched for.
* @param integer $offset Offset from the left of the string.
*
* @return integer|boolean Number of characters before the last match or false on failure
*
* @link https://www.php.net/strrpos
* @since 1.3.0
*/
public static function strrpos($str, $search, $offset = 0)
{
return utf8_strrpos($str, $search, $offset);
}
/**
* UTF-8 aware alternative to substr()
*
* Return part of a string given character offset (and optionally length).
*
* @param string $str String being processed
* @param integer $offset Number of UTF-8 characters offset (from left)
* @param integer|null|boolean $length Optional length in UTF-8 characters from offset
*
* @return string|boolean
*
* @link https://www.php.net/substr
* @since 1.3.0
*/
public static function substr($str, $offset, $length = false)
{
if ($length === false) {
return utf8_substr($str, $offset);
}
return utf8_substr($str, $offset, $length);
}
/**
* UTF-8 aware alternative to strtolower()
*
* Make a string lowercase
*
* Note: The concept of a characters "case" only exists is some alphabets such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
* not exist in the Chinese alphabet, for example. See Unicode Standard Annex #21: Case Mappings
*
* @param string $str String being processed
*
* @return string|boolean Either string in lowercase or FALSE is UTF-8 invalid
*
* @link https://www.php.net/strtolower
* @since 1.3.0
*/
public static function strtolower($str)
{
return utf8_strtolower($str);
}
/**
* UTF-8 aware alternative to strtoupper()
*
* Make a string uppercase
*
* Note: The concept of a characters "case" only exists is some alphabets such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
* not exist in the Chinese alphabet, for example. See Unicode Standard Annex #21: Case Mappings
*
* @param string $str String being processed
*
* @return string|boolean Either string in uppercase or FALSE is UTF-8 invalid
*
* @link https://www.php.net/strtoupper
* @since 1.3.0
*/
public static function strtoupper($str)
{
return utf8_strtoupper($str);
}
/**
* UTF-8 aware alternative to strlen()
*
* Returns the number of characters in the string (NOT THE NUMBER OF BYTES).
*
* @param string $str UTF-8 string.
*
* @return integer Number of UTF-8 characters in string.
*
* @link https://www.php.net/strlen
* @since 1.3.0
*/
public static function strlen($str)
{
return utf8_strlen($str);
}
/**
* UTF-8 aware alternative to str_ireplace()
*
* Case-insensitive version of str_replace()
*
* @param string $search String to search
* @param string $replace Existing string to replace
* @param string $str New string to replace with
* @param integer|null|boolean $count Optional count value to be passed by referene
*
* @return string UTF-8 String
*
* @link https://www.php.net/str_ireplace
* @since 1.3.0
*/
public static function str_ireplace($search, $replace, $str, $count = null)
{
if ($count === false) {
return utf8_ireplace($search, $replace, $str);
}
return utf8_ireplace($search, $replace, $str, $count);
}
/**
* UTF-8 aware alternative to str_pad()
*
* Pad a string to a certain length with another string.
* $padStr may contain multi-byte characters.
*
* @param string $input The input string.
* @param integer $length If the value is negative, less than, or equal to the length of the input string, no padding takes place.
* @param string $padStr The string may be truncated if the number of padding characters can't be evenly divided by the string's length.
* @param integer $type The type of padding to apply
*
* @return string
*
* @link https://www.php.net/str_pad
* @since 1.4.0
*/
public static function str_pad($input, $length, $padStr = ' ', $type = STR_PAD_RIGHT)
{
return utf8_str_pad($input, $length, $padStr, $type);
}
/**
* UTF-8 aware alternative to str_split()
*
* Convert a string to an array.
*
* @param string $str UTF-8 encoded string to process
* @param integer $splitLen Number to characters to split string by
*
* @return array|string|boolean
*
* @link https://www.php.net/str_split
* @since 1.3.0
*/
public static function str_split($str, $splitLen = 1)
{
return utf8_str_split($str, $splitLen);
}
/**
* UTF-8/LOCALE aware alternative to strcasecmp()
*
* A case insensitive string comparison.
*
* @param string $str1 string 1 to compare
* @param string $str2 string 2 to compare
* @param string|boolean $locale The locale used by strcoll or false to use classical comparison
*
* @return integer < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.
*
* @link https://www.php.net/strcasecmp
* @link https://www.php.net/strcoll
* @link https://www.php.net/setlocale
* @since 1.3.0
*/
public static function strcasecmp($str1, $str2, $locale = false)
{
if ($locale === false) {
return utf8_strcasecmp($str1, $str2);
}
// Get current locale
$locale0 = setlocale(LC_COLLATE, 0);
if (!$locale = setlocale(LC_COLLATE, $locale)) {
$locale = $locale0;
}
// See if we have successfully set locale to UTF-8
if (!stristr($locale, 'UTF-8') && stristr($locale, '_') && preg_match('~\.(\d+)$~', $locale, $m)) {
$encoding = 'CP' . $m[1];
} elseif (stristr($locale, 'UTF-8') || stristr($locale, 'utf8')) {
$encoding = 'UTF-8';
} else {
$encoding = 'nonrecodable';
}
// If we successfully set encoding it to utf-8 or encoding is sth weird don't recode
if ($encoding == 'UTF-8' || $encoding == 'nonrecodable') {
return strcoll(utf8_strtolower($str1), utf8_strtolower($str2));
}
return strcoll(
static::transcode(utf8_strtolower($str1), 'UTF-8', $encoding),
static::transcode(utf8_strtolower($str2), 'UTF-8', $encoding)
);
}
/**
* UTF-8/LOCALE aware alternative to strcmp()
*
* A case sensitive string comparison.
*
* @param string $str1 string 1 to compare
* @param string $str2 string 2 to compare
* @param mixed $locale The locale used by strcoll or false to use classical comparison
*
* @return integer < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.
*
* @link https://www.php.net/strcmp
* @link https://www.php.net/strcoll
* @link https://www.php.net/setlocale
* @since 1.3.0
*/
public static function strcmp($str1, $str2, $locale = false)
{
if ($locale) {
// Get current locale
$locale0 = setlocale(LC_COLLATE, 0);
if (!$locale = setlocale(LC_COLLATE, $locale)) {
$locale = $locale0;
}
// See if we have successfully set locale to UTF-8
if (!stristr($locale, 'UTF-8') && stristr($locale, '_') && preg_match('~\.(\d+)$~', $locale, $m)) {
$encoding = 'CP' . $m[1];
} elseif (stristr($locale, 'UTF-8') || stristr($locale, 'utf8')) {
$encoding = 'UTF-8';
} else {
$encoding = 'nonrecodable';
}
// If we successfully set encoding it to utf-8 or encoding is sth weird don't recode
if ($encoding == 'UTF-8' || $encoding == 'nonrecodable') {
return strcoll($str1, $str2);
}
return strcoll(static::transcode($str1, 'UTF-8', $encoding), static::transcode($str2, 'UTF-8', $encoding));
}
return strcmp($str1, $str2);
}
/**
* UTF-8 aware alternative to strcspn()
*
* Find length of initial segment not matching mask.
*
* @param string $str The string to process
* @param string $mask The mask
* @param integer|boolean $start Optional starting character position (in characters)
* @param integer|boolean $length Optional length
*
* @return integer The length of the initial segment of str1 which does not contain any of the characters in str2
*
* @link https://www.php.net/strcspn
* @since 1.3.0
*/
public static function strcspn($str, $mask, $start = null, $length = null)
{
if ($start === false && $length === false) {
return utf8_strcspn($str, $mask);
}
if ($length === false) {
return utf8_strcspn($str, $mask, $start);
}
return utf8_strcspn($str, $mask, $start, $length);
}
/**
* UTF-8 aware alternative to stristr()
*
* Returns all of haystack from the first occurrence of needle to the end. Needle and haystack are examined in a case-insensitive manner to
* find the first occurrence of a string using case insensitive comparison.
*
* @param string $str The haystack
* @param string $search The needle
*
* @return string|boolean
*
* @link https://www.php.net/stristr
* @since 1.3.0
*/
public static function stristr($str, $search)
{
return utf8_stristr($str, $search);
}
/**
* UTF-8 aware alternative to strrev()
*
* Reverse a string.
*
* @param string $str String to be reversed
*
* @return string The string in reverse character order
*
* @link https://www.php.net/strrev
* @since 1.3.0
*/
public static function strrev($str)
{
return utf8_strrev($str);
}
/**
* UTF-8 aware alternative to strspn()
*
* Find length of initial segment matching mask.
*
* @param string $str The haystack
* @param string $mask The mask
* @param integer|null $start Start optional
* @param integer|null $length Length optional
*
* @return integer
*
* @link https://www.php.net/strspn
* @since 1.3.0
*/
public static function strspn($str, $mask, $start = null, $length = null)
{
if ($start === null && $length === null) {
return utf8_strspn($str, $mask);
}
if ($length === null) {
return utf8_strspn($str, $mask, $start);
}
return utf8_strspn($str, $mask, $start, $length);
}
/**
* UTF-8 aware alternative to substr_replace()
*
* Replace text within a portion of a string.
*
* @param string $str The haystack
* @param string $repl The replacement string
* @param integer $start Start
* @param integer|boolean|null $length Length (optional)
*
* @return string
*
* @link https://www.php.net/substr_replace
* @since 1.3.0
*/
public static function substr_replace($str, $repl, $start, $length = null)
{
// Loaded by library loader
if ($length === false) {
return utf8_substr_replace($str, $repl, $start);
}
return utf8_substr_replace($str, $repl, $start, $length);
}
/**
* UTF-8 aware replacement for ltrim()
*
* Strip whitespace (or other characters) from the beginning of a string. You only need to use this if you are supplying the charlist
* optional arg and it contains UTF-8 characters. Otherwise ltrim will work normally on a UTF-8 string.
*
* @param string $str The string to be trimmed
* @param string|boolean $charlist The optional charlist of additional characters to trim
*
* @return string The trimmed string
*
* @link https://www.php.net/ltrim
* @since 1.3.0
*/
public static function ltrim($str, $charlist = false)
{
if (empty($charlist) && $charlist !== false) {
return $str;
}
if ($charlist === false) {
return utf8_ltrim($str);
}
return utf8_ltrim($str, $charlist);
}
/**
* UTF-8 aware replacement for rtrim()
*
* Strip whitespace (or other characters) from the end of a string. You only need to use this if you are supplying the charlist
* optional arg and it contains UTF-8 characters. Otherwise rtrim will work normally on a UTF-8 string.
*
* @param string $str The string to be trimmed
* @param string|boolean $charlist The optional charlist of additional characters to trim
*
* @return string The trimmed string
*
* @link https://www.php.net/rtrim
* @since 1.3.0
*/
public static function rtrim($str, $charlist = false)
{
if (empty($charlist) && $charlist !== false) {
return $str;
}
if ($charlist === false) {
return utf8_rtrim($str);
}
return utf8_rtrim($str, $charlist);
}
/**
* UTF-8 aware replacement for trim()
*
* Strip whitespace (or other characters) from the beginning and end of a string. You only need to use this if you are supplying the charlist
* optional arg and it contains UTF-8 characters. Otherwise trim will work normally on a UTF-8 string
*
* @param string $str The string to be trimmed
* @param string|boolean $charlist The optional charlist of additional characters to trim
*
* @return string The trimmed string
*
* @link https://www.php.net/trim
* @since 1.3.0
*/
public static function trim($str, $charlist = false)
{
if (empty($charlist) && $charlist !== false) {
return $str;
}
if ($charlist === false) {
return utf8_trim($str);
}
return utf8_trim($str, $charlist);
}
/**
* UTF-8 aware alternative to ucfirst()
*
* Make a string's first character uppercase or all words' first character uppercase.
*
* @param string $str String to be processed
* @param string|null $delimiter The words delimiter (null means do not split the string)
* @param string|null $newDelimiter The new words delimiter (null means equal to $delimiter)
*
* @return string If $delimiter is null, return the string with first character as upper case (if applicable)
* else consider the string of words separated by the delimiter, apply the ucfirst to each words
* and return the string with the new delimiter
*
* @link https://www.php.net/ucfirst
* @since 1.3.0
*/
public static function ucfirst($str, $delimiter = null, $newDelimiter = null)
{
if ($delimiter === null) {
return utf8_ucfirst($str);
}
if ($newDelimiter === null) {
$newDelimiter = $delimiter;
}
return implode($newDelimiter, array_map('utf8_ucfirst', explode($delimiter, $str)));
}
/**
* UTF-8 aware alternative to ucwords()
*
* Uppercase the first character of each word in a string.
*
* @param string $str String to be processed
*
* @return string String with first char of each word uppercase
*
* @link https://www.php.net/ucwords
* @since 1.3.0
*/
public static function ucwords($str)
{
return utf8_ucwords($str);
}
/**
* Transcode a string.
*
* @param string $source The string to transcode.
* @param string $fromEncoding The source encoding.
* @param string $toEncoding The target encoding.
*
* @return string|null The transcoded string, or null if the source was not a string.
*
* @link https://bugs.php.net/bug.php?id=48147
*
* @since 1.3.0
*/
public static function transcode($source, $fromEncoding, $toEncoding)
{
switch (ICONV_IMPL) {
case 'glibc':
return @iconv($fromEncoding, $toEncoding . '//TRANSLIT,IGNORE', $source);
case 'libiconv':
default:
return iconv($fromEncoding, $toEncoding . '//IGNORE//TRANSLIT', $source);
}
}
/**
* Tests a string as to whether it's valid UTF-8 and supported by the Unicode standard.
*
* Note: this function has been modified to simple return true or false.
*
* @param string $str UTF-8 encoded string.
*
* @return boolean true if valid
*
* @author <hsivonen@iki.fi>
* @link https://hsivonen.fi/php-utf8/
* @see compliant
* @since 1.3.0
*/
public static function valid($str)
{
return utf8_is_valid($str);
}
/**
* Tests whether a string complies as UTF-8.
*
* This will be much faster than StringHelper::valid() but will pass five and six octet UTF-8 sequences, which are not supported by Unicode and
* so cannot be displayed correctly in a browser. In other words it is not as strict as StringHelper::valid() but it's faster. If you use it to
* validate user input, you place yourself at the risk that attackers will be able to inject 5 and 6 byte sequences (which may or may not be a
* significant risk, depending on what you are are doing).
*
* @param string $str UTF-8 string to check
*
* @return boolean TRUE if string is valid UTF-8
*
* @see StringHelper::valid
* @link https://www.php.net/manual/en/reference.pcre.pattern.modifiers.php#54805
* @since 1.3.0
*/
public static function compliant($str)
{
return utf8_compliant($str);
}
/**
* Converts Unicode sequences to UTF-8 string.
*
* @param string $str Unicode string to convert
*
* @return string UTF-8 string
*
* @since 1.3.0
*/
public static function unicode_to_utf8($str)
{
if (\extension_loaded('mbstring')) {
return preg_replace_callback(
'/\\\\u([0-9a-fA-F]{4})/',
static function ($match) {
return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');
},
$str
);
}
return $str;
}
/**
* Converts Unicode sequences to UTF-16 string.
*
* @param string $str Unicode string to convert
*
* @return string UTF-16 string
*
* @since 1.3.0
*/
public static function unicode_to_utf16($str)
{
if (\extension_loaded('mbstring')) {
return preg_replace_callback(
'/\\\\u([0-9a-fA-F]{4})/',
static function ($match) {
return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UTF-16BE');
},
$str
);
}
return $str;
}
}

504
libraries/vendor/joomla/string/src/phputf8/LICENSE vendored Normal file
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@ -0,0 +1,504 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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That's all there is to it!

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++PHP UTF-8++
Version 0.5
++DOCUMENTATION++
Documentation in progress in ./docs dir
http://www.phpwact.org/php/i18n/charsets
http://www.phpwact.org/php/i18n/utf-8
Important Note: DO NOT use these functions without understanding WHY
you are using them. In particular, do not blindly replace all use of PHP's
string functions which functions found here - most of the time you will
not need to, and you will be introducing a significant performance
overhead to your application. You can get a good idea of when to use what
from reading: http://www.phpwact.org/php/i18n/utf-8
Important Note: For sake of performance most of the functions here are
not "defensive" (e.g. there is not extensive parameter checking, well
formed UTF-8 is assumed). This is particularily relevant when is comes to
catching badly formed UTF-8 - you should screen input on the "outer
perimeter" with help from functions in the utf8_validation.php and
utf8_bad.php files.
Important Note: this library treats ALL ASCII characters as valid, including ASCII control characters. But if you use some ASCII control characters in XML, it will render the XML ill-formed. Don't be a bozo: http://hsivonen.iki.fi/producing-xml/#controlchar
++BUGS / SUPPORT / FEATURE REQUESTS ++
Please report bugs to:
http://sourceforge.net/tracker/?group_id=142846&atid=753842
- if you are able, please submit a failing unit test
(http://www.lastcraft.com/simple_test.php) with your bug report.
For feature requests / faster implementation of functions found here,
please drop them in via the RFE tracker: http://sourceforge.net/tracker/?group_id=142846&atid=753845
Particularily interested in faster implementations!
For general support / help, use:
http://sourceforge.net/tracker/?group_id=142846&atid=753843
In the VERY WORST case, you can email me: hfuecks gmail com - I tend to be slow to respond though so be warned.
Important Note: when reporting bugs, please provide the following
information;
PHP version, whether the iconv extension is loaded (in PHP5 it's
there by default), whether the mbstring extension is loaded. The
following PHP script can be used to determine this information;
<?php
print "PHP Version: " .phpversion()."<br>";
if ( extension_loaded('mbstring') ) {
print "mbstring available<br>";
} else {
print "mbstring not available<br>";
}
if ( extension_loaded('iconv') ) {
print "iconv available<br>";
} else {
print "iconv not available<br>";
}
?>
++LICENSING++
Parts of the code in this library come from other places, under different
licenses.
The authors involved have been contacted (see below). Attribution for
which code came from elsewhere can be found in the source code itself.
+Andreas Gohr / Chris Smith - Dokuwiki
There is a fair degree of collaboration / exchange of ideas and code
beteen Dokuwiki's UTF-8 library;
http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
and phputf8. Although Dokuwiki is released under GPL, its UTF-8
library is released under LGPL, hence no conflict with phputf8
+Henri Sivonen (http://hsivonen.iki.fi/php-utf8/ /
http://hsivonen.iki.fi/php-utf8/) has also given permission for his
code to be released under the terms of the LGPL. He ported a Unicode / UTF-8
converter from the Mozilla codebase to PHP, which is re-used in phputf8

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<?php
/**
* @package utf8
*/
/**
* Define UTF8_CORE as required
*/
if (!defined('UTF8_CORE')) {
define('UTF8_CORE', true);
}
//--------------------------------------------------------------------
/**
* Wrapper round mb_strlen
* Assumes you have mb_internal_encoding to UTF-8 already
* Note: this function does not count bad bytes in the string - these
* are simply ignored
* @param string UTF-8 string
* @return int number of UTF-8 characters in string
* @package utf8
*/
function utf8_strlen($str)
{
return mb_strlen($str);
}
//--------------------------------------------------------------------
/**
* Assumes mbstring internal encoding is set to UTF-8
* Wrapper around mb_strpos
* Find position of first occurrence of a string
* @param string haystack
* @param string needle (you should validate this with utf8_is_valid)
* @param integer offset in characters (from left)
* @return mixed integer position or FALSE on failure
* @package utf8
*/
function utf8_strpos($str, $search, $offset = false)
{
if ($offset === false) {
return mb_strpos($str, $search);
} else {
return mb_strpos($str, $search, $offset);
}
}
//--------------------------------------------------------------------
/**
* Assumes mbstring internal encoding is set to UTF-8
* Wrapper around mb_strrpos
* Find position of last occurrence of a char in a string
* @param string haystack
* @param string needle (you should validate this with utf8_is_valid)
* @param integer (optional) offset (from left)
* @return mixed integer position or FALSE on failure
* @package utf8
*/
function utf8_strrpos($str, $search, $offset = false)
{
if ($offset === false) {
# Emulate behaviour of strrpos rather than raising warning
if (empty($str)) {
return false;
}
return mb_strrpos($str, $search);
} else {
if (!is_int($offset)) {
trigger_error('utf8_strrpos expects parameter 3 to be long', E_USER_WARNING);
return false;
}
$str = mb_substr($str, $offset);
if (false !== ($pos = mb_strrpos($str, $search))) {
return $pos + $offset;
}
return false;
}
}
//--------------------------------------------------------------------
/**
* Assumes mbstring internal encoding is set to UTF-8
* Wrapper around mb_substr
* Return part of a string given character offset (and optionally length)
* @param string
* @param integer number of UTF-8 characters offset (from left)
* @param integer (optional) length in UTF-8 characters from offset
* @return mixed string or FALSE if failure
* @package utf8
*/
function utf8_substr($str, $offset, $length = false)
{
if ($length === false) {
return mb_substr($str, (int) $offset);
} else {
return mb_substr($str, (int) $offset, $length);
}
}
//--------------------------------------------------------------------
/**
* Assumes mbstring internal encoding is set to UTF-8
* Wrapper around mb_strtolower
* Make a string lowercase
* Note: The concept of a characters "case" only exists is some alphabets
* such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
* not exist in the Chinese alphabet, for example. See Unicode Standard
* Annex #21: Case Mappings
* @param string
* @return mixed either string in lowercase or FALSE is UTF-8 invalid
* @package utf8
*/
function utf8_strtolower($str)
{
return mb_strtolower($str);
}
//--------------------------------------------------------------------
/**
* Assumes mbstring internal encoding is set to UTF-8
* Wrapper around mb_strtoupper
* Make a string uppercase
* Note: The concept of a characters "case" only exists is some alphabets
* such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
* not exist in the Chinese alphabet, for example. See Unicode Standard
* Annex #21: Case Mappings
* @param string
* @return mixed either string in lowercase or FALSE is UTF-8 invalid
* @package utf8
*/
function utf8_strtoupper($str)
{
return mb_strtoupper($str);
}

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libraries/vendor/joomla/string/src/phputf8/native/core.php vendored Normal file
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@ -0,0 +1,422 @@
<?php
/**
* @package utf8
*/
/**
* Define UTF8_CORE as required
*/
if (!defined('UTF8_CORE')) {
define('UTF8_CORE', true);
}
//--------------------------------------------------------------------
/**
* Unicode aware replacement for strlen(). Returns the number
* of characters in the string (not the number of bytes), replacing
* multibyte characters with a single byte equivalent
* utf8_decode() converts characters that are not in ISO-8859-1
* to '?', which, for the purpose of counting, is alright - It's
* much faster than iconv_strlen
* Note: this function does not count bad UTF-8 bytes in the string
* - these are simply ignored
* @author <chernyshevsky at hotmail dot com>
* @link http://www.php.net/manual/en/function.strlen.php
* @link http://www.php.net/manual/en/function.utf8-decode.php
* @param string UTF-8 string
* @return int number of UTF-8 characters in string
* @package utf8
*/
function utf8_strlen($str)
{
return strlen(utf8_decode($str));
}
//--------------------------------------------------------------------
/**
* UTF-8 aware alternative to strpos
* Find position of first occurrence of a string
* Note: This will get alot slower if offset is used
* Note: requires utf8_strlen amd utf8_substr to be loaded
* @param string haystack
* @param string needle (you should validate this with utf8_is_valid)
* @param integer offset in characters (from left)
* @return mixed integer position or FALSE on failure
* @see http://www.php.net/strpos
* @see utf8_strlen
* @see utf8_substr
* @package utf8
*/
function utf8_strpos($str, $needle, $offset = null)
{
if (is_null($offset)) {
$ar = explode($needle, $str, 2);
if (count($ar) > 1) {
return utf8_strlen($ar[0]);
}
return false;
} else {
if (!is_int($offset)) {
trigger_error('utf8_strpos: Offset must be an integer', E_USER_ERROR);
return false;
}
$str = utf8_substr($str, $offset);
if (false !== ($pos = utf8_strpos($str, $needle))) {
return $pos + $offset;
}
return false;
}
}
//--------------------------------------------------------------------
/**
* UTF-8 aware alternative to strrpos
* Find position of last occurrence of a char in a string
* Note: This will get alot slower if offset is used
* Note: requires utf8_substr and utf8_strlen to be loaded
* @param string haystack
* @param string needle (you should validate this with utf8_is_valid)
* @param integer (optional) offset (from left)
* @return mixed integer position or FALSE on failure
* @see http://www.php.net/strrpos
* @see utf8_substr
* @see utf8_strlen
* @package utf8
*/
function utf8_strrpos($str, $needle, $offset = null)
{
if (is_null($offset)) {
$ar = explode($needle, $str);
if (count($ar) > 1) {
// Pop off the end of the string where the last match was made
array_pop($ar);
$str = join($needle, $ar);
return utf8_strlen($str);
}
return false;
} else {
if (!is_int($offset)) {
trigger_error('utf8_strrpos expects parameter 3 to be long', E_USER_WARNING);
return false;
}
$str = utf8_substr($str, $offset);
if (false !== ($pos = utf8_strrpos($str, $needle))) {
return $pos + $offset;
}
return false;
}
}
//--------------------------------------------------------------------
/**
* UTF-8 aware alternative to substr
* Return part of a string given character offset (and optionally length)
*
* Note arguments: comparied to substr - if offset or length are
* not integers, this version will not complain but rather massages them
* into an integer.
*
* Note on returned values: substr documentation states false can be
* returned in some cases (e.g. offset > string length)
* mb_substr never returns false, it will return an empty string instead.
* This adopts the mb_substr approach
*
* Note on implementation: PCRE only supports repetitions of less than
* 65536, in order to accept up to MAXINT values for offset and length,
* we'll repeat a group of 65535 characters when needed.
*
* Note on implementation: calculating the number of characters in the
* string is a relatively expensive operation, so we only carry it out when
* necessary. It isn't necessary for +ve offsets and no specified length
*
* @author Chris Smith<chris@jalakai.co.uk>
* @param string
* @param integer number of UTF-8 characters offset (from left)
* @param integer (optional) length in UTF-8 characters from offset
* @return mixed string or FALSE if failure
* @package utf8
*/
function utf8_substr($str, $offset, $length = null)
{
// generates E_NOTICE
// for PHP4 objects, but not PHP5 objects
$str = (string)$str;
$offset = (int)$offset;
if (!is_null($length)) {
$length = (int)$length;
}
// handle trivial cases
if ($length === 0) {
return '';
}
if ($offset < 0 && $length < 0 && $length < $offset) {
return '';
}
// normalise negative offsets (we could use a tail
// anchored pattern, but they are horribly slow!)
if ($offset < 0) {
// see notes
$strlen = strlen(utf8_decode($str));
$offset = $strlen + $offset;
if ($offset < 0) {
$offset = 0;
}
}
$Op = '';
$Lp = '';
// establish a pattern for offset, a
// non-captured group equal in length to offset
if ($offset > 0) {
$Ox = (int)($offset / 65535);
$Oy = $offset % 65535;
if ($Ox) {
$Op = '(?:.{65535}){' . $Ox . '}';
}
$Op = '^(?:' . $Op . '.{' . $Oy . '})';
} else {
// offset == 0; just anchor the pattern
$Op = '^';
}
// establish a pattern for length
if (is_null($length)) {
// the rest of the string
$Lp = '(.*)$';
} else {
if (!isset($strlen)) {
// see notes
$strlen = strlen(utf8_decode($str));
}
// another trivial case
if ($offset > $strlen) {
return '';
}
if ($length > 0) {
// reduce any length that would
// go passed the end of the string
$length = min($strlen - $offset, $length);
$Lx = (int)($length / 65535);
$Ly = $length % 65535;
// negative length requires a captured group
// of length characters
if ($Lx) {
$Lp = '(?:.{65535}){' . $Lx . '}';
}
$Lp = '(' . $Lp . '.{' . $Ly . '})';
} elseif ($length < 0) {
if ($length < ($offset - $strlen)) {
return '';
}
$Lx = (int)((-$length) / 65535);
$Ly = (-$length) % 65535;
// negative length requires ... capture everything
// except a group of -length characters
// anchored at the tail-end of the string
if ($Lx) {
$Lp = '(?:.{65535}){' . $Lx . '}';
}
$Lp = '(.*)(?:' . $Lp . '.{' . $Ly . '})$';
}
}
if (!preg_match('#' . $Op . $Lp . '#us', $str, $match)) {
return '';
}
return $match[1];
}
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to strtolower
* Make a string lowercase
* Note: The concept of a characters "case" only exists is some alphabets
* such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
* not exist in the Chinese alphabet, for example. See Unicode Standard
* Annex #21: Case Mappings
* Note: requires utf8_to_unicode and utf8_from_unicode
* @author Andreas Gohr <andi@splitbrain.org>
* @param string
* @return mixed either string in lowercase or FALSE is UTF-8 invalid
* @see http://www.php.net/strtolower
* @see utf8_to_unicode
* @see utf8_from_unicode
* @see http://www.unicode.org/reports/tr21/tr21-5.html
* @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
* @package utf8
*/
function utf8_strtolower($string)
{
static $UTF8_UPPER_TO_LOWER = null;
if (is_null($UTF8_UPPER_TO_LOWER)) {
$UTF8_UPPER_TO_LOWER = [
0x0041 => 0x0061, 0x03A6 => 0x03C6, 0x0162 => 0x0163, 0x00C5 => 0x00E5, 0x0042 => 0x0062,
0x0139 => 0x013A, 0x00C1 => 0x00E1, 0x0141 => 0x0142, 0x038E => 0x03CD, 0x0100 => 0x0101,
0x0490 => 0x0491, 0x0394 => 0x03B4, 0x015A => 0x015B, 0x0044 => 0x0064, 0x0393 => 0x03B3,
0x00D4 => 0x00F4, 0x042A => 0x044A, 0x0419 => 0x0439, 0x0112 => 0x0113, 0x041C => 0x043C,
0x015E => 0x015F, 0x0143 => 0x0144, 0x00CE => 0x00EE, 0x040E => 0x045E, 0x042F => 0x044F,
0x039A => 0x03BA, 0x0154 => 0x0155, 0x0049 => 0x0069, 0x0053 => 0x0073, 0x1E1E => 0x1E1F,
0x0134 => 0x0135, 0x0427 => 0x0447, 0x03A0 => 0x03C0, 0x0418 => 0x0438, 0x00D3 => 0x00F3,
0x0420 => 0x0440, 0x0404 => 0x0454, 0x0415 => 0x0435, 0x0429 => 0x0449, 0x014A => 0x014B,
0x0411 => 0x0431, 0x0409 => 0x0459, 0x1E02 => 0x1E03, 0x00D6 => 0x00F6, 0x00D9 => 0x00F9,
0x004E => 0x006E, 0x0401 => 0x0451, 0x03A4 => 0x03C4, 0x0423 => 0x0443, 0x015C => 0x015D,
0x0403 => 0x0453, 0x03A8 => 0x03C8, 0x0158 => 0x0159, 0x0047 => 0x0067, 0x00C4 => 0x00E4,
0x0386 => 0x03AC, 0x0389 => 0x03AE, 0x0166 => 0x0167, 0x039E => 0x03BE, 0x0164 => 0x0165,
0x0116 => 0x0117, 0x0108 => 0x0109, 0x0056 => 0x0076, 0x00DE => 0x00FE, 0x0156 => 0x0157,
0x00DA => 0x00FA, 0x1E60 => 0x1E61, 0x1E82 => 0x1E83, 0x00C2 => 0x00E2, 0x0118 => 0x0119,
0x0145 => 0x0146, 0x0050 => 0x0070, 0x0150 => 0x0151, 0x042E => 0x044E, 0x0128 => 0x0129,
0x03A7 => 0x03C7, 0x013D => 0x013E, 0x0422 => 0x0442, 0x005A => 0x007A, 0x0428 => 0x0448,
0x03A1 => 0x03C1, 0x1E80 => 0x1E81, 0x016C => 0x016D, 0x00D5 => 0x00F5, 0x0055 => 0x0075,
0x0176 => 0x0177, 0x00DC => 0x00FC, 0x1E56 => 0x1E57, 0x03A3 => 0x03C3, 0x041A => 0x043A,
0x004D => 0x006D, 0x016A => 0x016B, 0x0170 => 0x0171, 0x0424 => 0x0444, 0x00CC => 0x00EC,
0x0168 => 0x0169, 0x039F => 0x03BF, 0x004B => 0x006B, 0x00D2 => 0x00F2, 0x00C0 => 0x00E0,
0x0414 => 0x0434, 0x03A9 => 0x03C9, 0x1E6A => 0x1E6B, 0x00C3 => 0x00E3, 0x042D => 0x044D,
0x0416 => 0x0436, 0x01A0 => 0x01A1, 0x010C => 0x010D, 0x011C => 0x011D, 0x00D0 => 0x00F0,
0x013B => 0x013C, 0x040F => 0x045F, 0x040A => 0x045A, 0x00C8 => 0x00E8, 0x03A5 => 0x03C5,
0x0046 => 0x0066, 0x00DD => 0x00FD, 0x0043 => 0x0063, 0x021A => 0x021B, 0x00CA => 0x00EA,
0x0399 => 0x03B9, 0x0179 => 0x017A, 0x00CF => 0x00EF, 0x01AF => 0x01B0, 0x0045 => 0x0065,
0x039B => 0x03BB, 0x0398 => 0x03B8, 0x039C => 0x03BC, 0x040C => 0x045C, 0x041F => 0x043F,
0x042C => 0x044C, 0x00DE => 0x00FE, 0x00D0 => 0x00F0, 0x1EF2 => 0x1EF3, 0x0048 => 0x0068,
0x00CB => 0x00EB, 0x0110 => 0x0111, 0x0413 => 0x0433, 0x012E => 0x012F, 0x00C6 => 0x00E6,
0x0058 => 0x0078, 0x0160 => 0x0161, 0x016E => 0x016F, 0x0391 => 0x03B1, 0x0407 => 0x0457,
0x0172 => 0x0173, 0x0178 => 0x00FF, 0x004F => 0x006F, 0x041B => 0x043B, 0x0395 => 0x03B5,
0x0425 => 0x0445, 0x0120 => 0x0121, 0x017D => 0x017E, 0x017B => 0x017C, 0x0396 => 0x03B6,
0x0392 => 0x03B2, 0x0388 => 0x03AD, 0x1E84 => 0x1E85, 0x0174 => 0x0175, 0x0051 => 0x0071,
0x0417 => 0x0437, 0x1E0A => 0x1E0B, 0x0147 => 0x0148, 0x0104 => 0x0105, 0x0408 => 0x0458,
0x014C => 0x014D, 0x00CD => 0x00ED, 0x0059 => 0x0079, 0x010A => 0x010B, 0x038F => 0x03CE,
0x0052 => 0x0072, 0x0410 => 0x0430, 0x0405 => 0x0455, 0x0402 => 0x0452, 0x0126 => 0x0127,
0x0136 => 0x0137, 0x012A => 0x012B, 0x038A => 0x03AF, 0x042B => 0x044B, 0x004C => 0x006C,
0x0397 => 0x03B7, 0x0124 => 0x0125, 0x0218 => 0x0219, 0x00DB => 0x00FB, 0x011E => 0x011F,
0x041E => 0x043E, 0x1E40 => 0x1E41, 0x039D => 0x03BD, 0x0106 => 0x0107, 0x03AB => 0x03CB,
0x0426 => 0x0446, 0x00DE => 0x00FE, 0x00C7 => 0x00E7, 0x03AA => 0x03CA, 0x0421 => 0x0441,
0x0412 => 0x0432, 0x010E => 0x010F, 0x00D8 => 0x00F8, 0x0057 => 0x0077, 0x011A => 0x011B,
0x0054 => 0x0074, 0x004A => 0x006A, 0x040B => 0x045B, 0x0406 => 0x0456, 0x0102 => 0x0103,
0x039B => 0x03BB, 0x00D1 => 0x00F1, 0x041D => 0x043D, 0x038C => 0x03CC, 0x00C9 => 0x00E9,
0x00D0 => 0x00F0, 0x0407 => 0x0457, 0x0122 => 0x0123,
];
}
$uni = utf8_to_unicode($string);
if (!$uni) {
return false;
}
$cnt = count($uni);
for ($i = 0; $i < $cnt; $i++) {
if (isset($UTF8_UPPER_TO_LOWER[$uni[$i]])) {
$uni[$i] = $UTF8_UPPER_TO_LOWER[$uni[$i]];
}
}
return utf8_from_unicode($uni);
}
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to strtoupper
* Make a string uppercase
* Note: The concept of a characters "case" only exists is some alphabets
* such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
* not exist in the Chinese alphabet, for example. See Unicode Standard
* Annex #21: Case Mappings
* Note: requires utf8_to_unicode and utf8_from_unicode
* @author Andreas Gohr <andi@splitbrain.org>
* @param string
* @return mixed either string in lowercase or FALSE is UTF-8 invalid
* @see http://www.php.net/strtoupper
* @see utf8_to_unicode
* @see utf8_from_unicode
* @see http://www.unicode.org/reports/tr21/tr21-5.html
* @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
* @package utf8
*/
function utf8_strtoupper($string)
{
static $UTF8_LOWER_TO_UPPER = null;
if (is_null($UTF8_LOWER_TO_UPPER)) {
$UTF8_LOWER_TO_UPPER = [
0x0061 => 0x0041, 0x03C6 => 0x03A6, 0x0163 => 0x0162, 0x00E5 => 0x00C5, 0x0062 => 0x0042,
0x013A => 0x0139, 0x00E1 => 0x00C1, 0x0142 => 0x0141, 0x03CD => 0x038E, 0x0101 => 0x0100,
0x0491 => 0x0490, 0x03B4 => 0x0394, 0x015B => 0x015A, 0x0064 => 0x0044, 0x03B3 => 0x0393,
0x00F4 => 0x00D4, 0x044A => 0x042A, 0x0439 => 0x0419, 0x0113 => 0x0112, 0x043C => 0x041C,
0x015F => 0x015E, 0x0144 => 0x0143, 0x00EE => 0x00CE, 0x045E => 0x040E, 0x044F => 0x042F,
0x03BA => 0x039A, 0x0155 => 0x0154, 0x0069 => 0x0049, 0x0073 => 0x0053, 0x1E1F => 0x1E1E,
0x0135 => 0x0134, 0x0447 => 0x0427, 0x03C0 => 0x03A0, 0x0438 => 0x0418, 0x00F3 => 0x00D3,
0x0440 => 0x0420, 0x0454 => 0x0404, 0x0435 => 0x0415, 0x0449 => 0x0429, 0x014B => 0x014A,
0x0431 => 0x0411, 0x0459 => 0x0409, 0x1E03 => 0x1E02, 0x00F6 => 0x00D6, 0x00F9 => 0x00D9,
0x006E => 0x004E, 0x0451 => 0x0401, 0x03C4 => 0x03A4, 0x0443 => 0x0423, 0x015D => 0x015C,
0x0453 => 0x0403, 0x03C8 => 0x03A8, 0x0159 => 0x0158, 0x0067 => 0x0047, 0x00E4 => 0x00C4,
0x03AC => 0x0386, 0x03AE => 0x0389, 0x0167 => 0x0166, 0x03BE => 0x039E, 0x0165 => 0x0164,
0x0117 => 0x0116, 0x0109 => 0x0108, 0x0076 => 0x0056, 0x00FE => 0x00DE, 0x0157 => 0x0156,
0x00FA => 0x00DA, 0x1E61 => 0x1E60, 0x1E83 => 0x1E82, 0x00E2 => 0x00C2, 0x0119 => 0x0118,
0x0146 => 0x0145, 0x0070 => 0x0050, 0x0151 => 0x0150, 0x044E => 0x042E, 0x0129 => 0x0128,
0x03C7 => 0x03A7, 0x013E => 0x013D, 0x0442 => 0x0422, 0x007A => 0x005A, 0x0448 => 0x0428,
0x03C1 => 0x03A1, 0x1E81 => 0x1E80, 0x016D => 0x016C, 0x00F5 => 0x00D5, 0x0075 => 0x0055,
0x0177 => 0x0176, 0x00FC => 0x00DC, 0x1E57 => 0x1E56, 0x03C3 => 0x03A3, 0x043A => 0x041A,
0x006D => 0x004D, 0x016B => 0x016A, 0x0171 => 0x0170, 0x0444 => 0x0424, 0x00EC => 0x00CC,
0x0169 => 0x0168, 0x03BF => 0x039F, 0x006B => 0x004B, 0x00F2 => 0x00D2, 0x00E0 => 0x00C0,
0x0434 => 0x0414, 0x03C9 => 0x03A9, 0x1E6B => 0x1E6A, 0x00E3 => 0x00C3, 0x044D => 0x042D,
0x0436 => 0x0416, 0x01A1 => 0x01A0, 0x010D => 0x010C, 0x011D => 0x011C, 0x00F0 => 0x00D0,
0x013C => 0x013B, 0x045F => 0x040F, 0x045A => 0x040A, 0x00E8 => 0x00C8, 0x03C5 => 0x03A5,
0x0066 => 0x0046, 0x00FD => 0x00DD, 0x0063 => 0x0043, 0x021B => 0x021A, 0x00EA => 0x00CA,
0x03B9 => 0x0399, 0x017A => 0x0179, 0x00EF => 0x00CF, 0x01B0 => 0x01AF, 0x0065 => 0x0045,
0x03BB => 0x039B, 0x03B8 => 0x0398, 0x03BC => 0x039C, 0x045C => 0x040C, 0x043F => 0x041F,
0x044C => 0x042C, 0x00FE => 0x00DE, 0x00F0 => 0x00D0, 0x1EF3 => 0x1EF2, 0x0068 => 0x0048,
0x00EB => 0x00CB, 0x0111 => 0x0110, 0x0433 => 0x0413, 0x012F => 0x012E, 0x00E6 => 0x00C6,
0x0078 => 0x0058, 0x0161 => 0x0160, 0x016F => 0x016E, 0x03B1 => 0x0391, 0x0457 => 0x0407,
0x0173 => 0x0172, 0x00FF => 0x0178, 0x006F => 0x004F, 0x043B => 0x041B, 0x03B5 => 0x0395,
0x0445 => 0x0425, 0x0121 => 0x0120, 0x017E => 0x017D, 0x017C => 0x017B, 0x03B6 => 0x0396,
0x03B2 => 0x0392, 0x03AD => 0x0388, 0x1E85 => 0x1E84, 0x0175 => 0x0174, 0x0071 => 0x0051,
0x0437 => 0x0417, 0x1E0B => 0x1E0A, 0x0148 => 0x0147, 0x0105 => 0x0104, 0x0458 => 0x0408,
0x014D => 0x014C, 0x00ED => 0x00CD, 0x0079 => 0x0059, 0x010B => 0x010A, 0x03CE => 0x038F,
0x0072 => 0x0052, 0x0430 => 0x0410, 0x0455 => 0x0405, 0x0452 => 0x0402, 0x0127 => 0x0126,
0x0137 => 0x0136, 0x012B => 0x012A, 0x03AF => 0x038A, 0x044B => 0x042B, 0x006C => 0x004C,
0x03B7 => 0x0397, 0x0125 => 0x0124, 0x0219 => 0x0218, 0x00FB => 0x00DB, 0x011F => 0x011E,
0x043E => 0x041E, 0x1E41 => 0x1E40, 0x03BD => 0x039D, 0x0107 => 0x0106, 0x03CB => 0x03AB,
0x0446 => 0x0426, 0x00FE => 0x00DE, 0x00E7 => 0x00C7, 0x03CA => 0x03AA, 0x0441 => 0x0421,
0x0432 => 0x0412, 0x010F => 0x010E, 0x00F8 => 0x00D8, 0x0077 => 0x0057, 0x011B => 0x011A,
0x0074 => 0x0054, 0x006A => 0x004A, 0x045B => 0x040B, 0x0456 => 0x0406, 0x0103 => 0x0102,
0x03BB => 0x039B, 0x00F1 => 0x00D1, 0x043D => 0x041D, 0x03CC => 0x038C, 0x00E9 => 0x00C9,
0x00F0 => 0x00D0, 0x0457 => 0x0407, 0x0123 => 0x0122,
];
}
$uni = utf8_to_unicode($string);
if (!$uni) {
return false;
}
$cnt = count($uni);
for ($i = 0; $i < $cnt; $i++) {
if (isset($UTF8_LOWER_TO_UPPER[$uni[$i]])) {
$uni[$i] = $UTF8_LOWER_TO_UPPER[$uni[$i]];
}
}
return utf8_from_unicode($uni);
}

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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to ord
* Returns the unicode ordinal for a character
*
* Joomla modification - As of PHP 7.4, curly brace access has been deprecated. As a result this function has been
* modified to use square brace syntax
* See https://github.com/php/php-src/commit/d574df63dc375f5fc9202ce5afde23f866b6450a
* for additional references
*
* @param string UTF-8 encoded character
* @return int unicode ordinal for the character
* @see http://www.php.net/ord
* @see http://www.php.net/manual/en/function.ord.php#46267
*/
function utf8_ord($chr)
{
$ord0 = ord($chr);
if ($ord0 >= 0 && $ord0 <= 127) {
return $ord0;
}
if (!isset($chr[1])) {
trigger_error('Short sequence - at least 2 bytes expected, only 1 seen');
return false;
}
$ord1 = ord($chr[1]);
if ($ord0 >= 192 && $ord0 <= 223) {
return ($ord0 - 192) * 64
+ ($ord1 - 128);
}
if (!isset($chr[2])) {
trigger_error('Short sequence - at least 3 bytes expected, only 2 seen');
return false;
}
$ord2 = ord($chr[2]);
if ($ord0 >= 224 && $ord0 <= 239) {
return ($ord0 - 224) * 4096
+ ($ord1 - 128) * 64
+ ($ord2 - 128);
}
if (!isset($chr[3])) {
trigger_error('Short sequence - at least 4 bytes expected, only 3 seen');
return false;
}
$ord3 = ord($chr[3]);
if ($ord0 >= 240 && $ord0 <= 247) {
return ($ord0 - 240) * 262144
+ ($ord1 - 128) * 4096
+ ($ord2 - 128) * 64
+ ($ord3 - 128);
}
if (!isset($chr[4])) {
trigger_error('Short sequence - at least 5 bytes expected, only 4 seen');
return false;
}
$ord4 = ord($chr[4]);
if ($ord0 >= 248 && $ord0 <= 251) {
return ($ord0 - 248) * 16777216
+ ($ord1 - 128) * 262144
+ ($ord2 - 128) * 4096
+ ($ord3 - 128) * 64
+ ($ord4 - 128);
}
if (!isset($chr[5])) {
trigger_error('Short sequence - at least 6 bytes expected, only 5 seen');
return false;
}
if ($ord0 >= 252 && $ord0 <= 253) {
return ($ord0 - 252) * 1073741824
+ ($ord1 - 128) * 16777216
+ ($ord2 - 128) * 262144
+ ($ord3 - 128) * 4096
+ ($ord4 - 128) * 64
+ (ord($chr[5]) - 128);
}
if ($ord0 >= 254 && $ord0 <= 255) {
trigger_error('Invalid UTF-8 with surrogate ordinal ' . $ord0);
return false;
}
}

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libraries/vendor/joomla/string/src/phputf8/str_ireplace.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to str_ireplace
* Case-insensitive version of str_replace
* Note: requires utf8_strtolower
* Note: it's not fast and gets slower if $search / $replace is array
* Notes: it's based on the assumption that the lower and uppercase
* versions of a UTF-8 character will have the same length in bytes
* which is currently true given the hash table to strtolower
* @param string
* @return string
* @see http://www.php.net/str_ireplace
* @see utf8_strtolower
* @package utf8
*/
function utf8_ireplace($search, $replace, $str, $count = null)
{
if (!is_array($search)) {
$slen = strlen($search);
if ($slen == 0) {
return $str;
}
$lendif = strlen($replace) - strlen($search);
$search = utf8_strtolower($search);
$search = preg_quote($search, '/');
$lstr = utf8_strtolower($str);
$i = 0;
$matched = 0;
while (preg_match('/(.*)' . $search . '/Us', $lstr, $matches)) {
if ($i === $count) {
break;
}
$mlen = strlen($matches[0]);
$lstr = substr($lstr, $mlen);
$str = substr_replace($str, $replace, $matched + strlen($matches[1]), $slen);
$matched += $mlen + $lendif;
$i++;
}
return $str;
} else {
foreach (array_keys($search) as $k) {
if (is_array($replace)) {
if (array_key_exists($k, $replace)) {
$str = utf8_ireplace($search[$k], $replace[$k], $str, $count);
} else {
$str = utf8_ireplace($search[$k], '', $str, $count);
}
} else {
$str = utf8_ireplace($search[$k], $replace, $str, $count);
}
}
return $str;
}
}

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libraries/vendor/joomla/string/src/phputf8/str_pad.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* Replacement for str_pad. $padStr may contain multi-byte characters.
*
* @author Oliver Saunders <oliver (a) osinternetservices.com>
* @param string $input
* @param int $length
* @param string $padStr
* @param int $type ( same constants as str_pad )
* @return string
* @see http://www.php.net/str_pad
* @see utf8_substr
* @package utf8
*/
function utf8_str_pad($input, $length, $padStr = ' ', $type = STR_PAD_RIGHT)
{
$inputLen = utf8_strlen($input);
if ($length <= $inputLen) {
return $input;
}
$padStrLen = utf8_strlen($padStr);
$padLen = $length - $inputLen;
if ($type == STR_PAD_RIGHT) {
$repeatTimes = ceil($padLen / $padStrLen);
return utf8_substr($input . str_repeat($padStr, $repeatTimes), 0, $length);
}
if ($type == STR_PAD_LEFT) {
$repeatTimes = ceil($padLen / $padStrLen);
return utf8_substr(str_repeat($padStr, $repeatTimes), 0, floor($padLen)) . $input;
}
if ($type == STR_PAD_BOTH) {
$padLen /= 2;
$padAmountLeft = floor($padLen);
$padAmountRight = ceil($padLen);
$repeatTimesLeft = ceil($padAmountLeft / $padStrLen);
$repeatTimesRight = ceil($padAmountRight / $padStrLen);
$paddingLeft = utf8_substr(str_repeat($padStr, $repeatTimesLeft), 0, $padAmountLeft);
$paddingRight = utf8_substr(str_repeat($padStr, $repeatTimesRight), 0, $padAmountLeft);
return $paddingLeft . $input . $paddingRight;
}
trigger_error('utf8_str_pad: Unknown padding type (' . $type . ')', E_USER_ERROR);
}

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libraries/vendor/joomla/string/src/phputf8/str_split.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to str_split
* Convert a string to an array
* Note: requires utf8_strlen to be loaded
* @param string UTF-8 encoded
* @param int number to characters to split string by
* @return string characters in string reverses
* @see http://www.php.net/str_split
* @see utf8_strlen
* @package utf8
*/
function utf8_str_split($str, $split_len = 1)
{
if (!preg_match('/^[0-9]+$/', $split_len) || $split_len < 1) {
return false;
}
$len = utf8_strlen($str);
if ($len <= $split_len) {
return [$str];
}
preg_match_all('/.{' . $split_len . '}|[^\x00]{1,' . $split_len . '}$/us', $str, $ar);
return $ar[0];
}

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libraries/vendor/joomla/string/src/phputf8/strcasecmp.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to strcasecmp
* A case insensivite string comparison
* Note: requires utf8_strtolower
* @param string
* @param string
* @return int
* @see http://www.php.net/strcasecmp
* @see utf8_strtolower
* @package utf8
*/
function utf8_strcasecmp($strX, $strY)
{
$strX = utf8_strtolower($strX);
$strY = utf8_strtolower($strY);
return strcmp($strX, $strY);
}

37
libraries/vendor/joomla/string/src/phputf8/strcspn.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to strcspn
* Find length of initial segment not matching mask
* Note: requires utf8_strlen and utf8_substr (if start, length are used)
* @param string
* @return int
* @see http://www.php.net/strcspn
* @see utf8_strlen
* @package utf8
*/
function utf8_strcspn($str, $mask, $start = null, $length = null)
{
if (empty($mask) || strlen($mask) == 0) {
return null;
}
$mask = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $mask);
if ($start !== null || $length !== null) {
$str = utf8_substr($str, $start, $length);
}
preg_match('/^[^' . $mask . ']+/u', $str, $matches);
if (isset($matches[0])) {
return utf8_strlen($matches[0]);
}
return 0;
}

36
libraries/vendor/joomla/string/src/phputf8/stristr.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to stristr
* Find first occurrence of a string using case insensitive comparison
* Note: requires utf8_strtolower
* @param string
* @param string
* @return int
* @see http://www.php.net/strcasecmp
* @see utf8_strtolower
* @package utf8
*/
function utf8_stristr($str, $search)
{
if (strlen($search) == 0) {
return $str;
}
$lstr = utf8_strtolower($str);
$lsearch = utf8_strtolower($search);
//JOOMLA SPECIFIC FIX - BEGIN
preg_match('/^(.*)' . preg_quote($lsearch, '/') . '/Us', $lstr, $matches);
//JOOMLA SPECIFIC FIX - END
if (count($matches) == 2) {
return substr($str, strlen($matches[1]));
}
return false;
}

20
libraries/vendor/joomla/string/src/phputf8/strrev.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to strrev
* Reverse a string
* @param string UTF-8 encoded
* @return string characters in string reverses
* @see http://www.php.net/strrev
* @package utf8
*/
function utf8_strrev($str)
{
preg_match_all('/./us', $str, $ar);
return join('', array_reverse($ar[0]));
}

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libraries/vendor/joomla/string/src/phputf8/strspn.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to strspn
* Find length of initial segment matching mask
* Note: requires utf8_strlen and utf8_substr (if start, length are used)
* @param string
* @return int
* @see http://www.php.net/strspn
* @package utf8
*/
function utf8_strspn($str, $mask, $start = null, $length = null)
{
$mask = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $mask);
// Fix for $start but no $length argument.
if ($start !== null && $length === null) {
$length = utf8_strlen($str);
}
if ($start !== null || $length !== null) {
$str = utf8_substr($str, $start, $length);
}
preg_match('/^[' . $mask . ']+/u', $str, $matches);
if (isset($matches[0])) {
return utf8_strlen($matches[0]);
}
return 0;
}

24
libraries/vendor/joomla/string/src/phputf8/substr_replace.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware substr_replace.
* Note: requires utf8_substr to be loaded
* @see http://www.php.net/substr_replace
* @see utf8_strlen
* @see utf8_substr
*/
function utf8_substr_replace($str, $repl, $start, $length = null)
{
preg_match_all('/./us', $str, $ar);
preg_match_all('/./us', $repl, $rar);
if ($length === null) {
$length = utf8_strlen($str);
}
array_splice($ar[0], $start, $length, $rar[0]);
return join('', $ar[0]);
}

73
libraries/vendor/joomla/string/src/phputf8/trim.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware replacement for ltrim()
* Note: you only need to use this if you are supplying the charlist
* optional arg and it contains UTF-8 characters. Otherwise ltrim will
* work normally on a UTF-8 string
* @author Andreas Gohr <andi@splitbrain.org>
* @see http://www.php.net/ltrim
* @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
* @return string
* @package utf8
*/
function utf8_ltrim($str, $charlist = false)
{
if ($charlist === false) {
return ltrim($str);
}
//quote charlist for use in a characterclass
$charlist = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $charlist);
return preg_replace('/^[' . $charlist . ']+/u', '', $str);
}
//---------------------------------------------------------------
/**
* UTF-8 aware replacement for rtrim()
* Note: you only need to use this if you are supplying the charlist
* optional arg and it contains UTF-8 characters. Otherwise rtrim will
* work normally on a UTF-8 string
* @author Andreas Gohr <andi@splitbrain.org>
* @see http://www.php.net/rtrim
* @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
* @return string
* @package utf8
*/
function utf8_rtrim($str, $charlist = false)
{
if ($charlist === false) {
return rtrim($str);
}
//quote charlist for use in a characterclass
$charlist = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $charlist);
return preg_replace('/[' . $charlist . ']+$/u', '', $str);
}
//---------------------------------------------------------------
/**
* UTF-8 aware replacement for trim()
* Note: you only need to use this if you are supplying the charlist
* optional arg and it contains UTF-8 characters. Otherwise trim will
* work normally on a UTF-8 string
* @author Andreas Gohr <andi@splitbrain.org>
* @see http://www.php.net/trim
* @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
* @return string
* @package utf8
*/
function utf8_trim($str, $charlist = false)
{
if ($charlist === false) {
return trim($str);
}
return utf8_ltrim(utf8_rtrim($str, $charlist), $charlist);
}

32
libraries/vendor/joomla/string/src/phputf8/ucfirst.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to ucfirst
* Make a string's first character uppercase
* Note: requires utf8_strtoupper
* @param string
* @return string with first character as upper case (if applicable)
* @see http://www.php.net/ucfirst
* @see utf8_strtoupper
* @package utf8
*/
function utf8_ucfirst($str)
{
switch (utf8_strlen($str)) {
case 0:
return '';
break;
case 1:
return utf8_strtoupper($str);
break;
default:
preg_match('/^(.{1})(.*)$/us', $str, $matches);
return utf8_strtoupper($matches[1]) . $matches[2];
break;
}
}

42
libraries/vendor/joomla/string/src/phputf8/ucwords.php vendored Normal file
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<?php
/**
* @package utf8
*/
//---------------------------------------------------------------
/**
* UTF-8 aware alternative to ucwords
* Uppercase the first character of each word in a string
* Note: requires utf8_substr_replace and utf8_strtoupper
* @param string
* @return string with first char of each word uppercase
* @see http://www.php.net/ucwords
* @package utf8
*/
function utf8_ucwords($str)
{
// Note: [\x0c\x09\x0b\x0a\x0d\x20] matches;
// form feeds, horizontal tabs, vertical tabs, linefeeds and carriage returns
// This corresponds to the definition of a "word" defined at http://www.php.net/ucwords
$pattern = '/(^|([\x0c\x09\x0b\x0a\x0d\x20]+))([^\x0c\x09\x0b\x0a\x0d\x20]{1})[^\x0c\x09\x0b\x0a\x0d\x20]*/u';
return preg_replace_callback($pattern, 'utf8_ucwords_callback', $str);
}
//---------------------------------------------------------------
/**
* Callback function for preg_replace_callback call in utf8_ucwords
* You don't need to call this yourself
* @param array of matches corresponding to a single word
* @return string with first char of the word in uppercase
* @see utf8_ucwords
* @see utf8_strtoupper
* @package utf8
*/
function utf8_ucwords_callback($matches)
{
$leadingws = $matches[2];
$ucfirst = utf8_strtoupper($matches[3]);
$ucword = utf8_substr_replace(ltrim($matches[0]), $ucfirst, 0, 1);
return $leadingws . $ucword;
}

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libraries/vendor/joomla/string/src/phputf8/utf8.php vendored Normal file
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<?php
/**
* This is the dynamic loader for the library. It checks whether you have
* the mbstring extension available and includes relevant files
* on that basis, falling back to the native (as in written in PHP) version
* if mbstring is unavailabe.
*
* It's probably easiest to use this, if you don't want to understand
* the dependencies involved, in conjunction with PHP versions etc. At
* the same time, you might get better performance by managing loading
* yourself. The smartest way to do this, bearing in mind performance,
* is probably to "load on demand" - i.e. just before you use these
* functions in your code, load the version you need.
*
* It makes sure the the following functions are available;
* utf8_strlen, utf8_strpos, utf8_strrpos, utf8_substr,
* utf8_strtolower, utf8_strtoupper
* Other functions in the ./native directory depend on these
* six functions being available
* @package utf8
*/
/**
* Put the current directory in this constant
*/
if (!defined('UTF8')) {
define('UTF8', dirname(__FILE__));
}
/**
* If string overloading is active, it will break many of the
* native implementations. mbstring.func_overload must be set
* to 0, 1 or 4 in php.ini (string overloading disabled).
* Also need to check we have the correct internal mbstring
* encoding
*/
if (extension_loaded('mbstring')) {
/*
* Joomla modification - As of PHP 8, the `mbstring.func_overload` configuration has been removed and the
* MB_OVERLOAD_STRING constant will no longer be present, so this check only runs for PHP 7 and older
* See https://github.com/php/php-src/commit/331e56ce38a91e87a6fb8e88154bb5bde445b132
* and https://github.com/php/php-src/commit/97df99a6d7d96a886ac143337fecad775907589a
* for additional references
*/
if (PHP_VERSION_ID < 80000 && ((int) ini_get('mbstring.func_overload')) & MB_OVERLOAD_STRING) {
trigger_error('String functions are overloaded by mbstring', E_USER_ERROR);
}
mb_internal_encoding('UTF-8');
}
/**
* Check whether PCRE has been compiled with UTF-8 support
*/
$UTF8_ar = [];
if (preg_match('/^.{1}$/u', "ñ", $UTF8_ar) != 1) {
trigger_error('PCRE is not compiled with UTF-8 support', E_USER_ERROR);
}
unset($UTF8_ar);
/**
* Load the smartest implementations of utf8_strpos, utf8_strrpos
* and utf8_substr
*/
if (!defined('UTF8_CORE')) {
if (function_exists('mb_substr')) {
require_once UTF8 . '/mbstring/core.php';
} else {
require_once UTF8 . '/utils/unicode.php';
require_once UTF8 . '/native/core.php';
}
}
/**
* Load the native implementation of utf8_substr_replace
*/
require_once UTF8 . '/substr_replace.php';
/**
* You should now be able to use all the other utf_* string functions
*/

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libraries/vendor/joomla/string/src/phputf8/utils/ascii.php vendored Normal file
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<?php
/**
* Tools to help with ASCII in UTF-8
*
* @package utf8
*/
//--------------------------------------------------------------------
/**
* Tests whether a string contains only 7bit ASCII bytes.
* You might use this to conditionally check whether a string
* needs handling as UTF-8 or not, potentially offering performance
* benefits by using the native PHP equivalent if it's just ASCII e.g.;
*
* <code>
* if ( utf8_is_ascii($someString) ) {
* // It's just ASCII - use the native PHP version
* $someString = strtolower($someString);
* } else {
* $someString = utf8_strtolower($someString);
* }
* </code>
*
* @param string
* @return boolean TRUE if it's all ASCII
* @package utf8
* @see utf8_is_ascii_ctrl
*/
function utf8_is_ascii($str)
{
// Search for any bytes which are outside the ASCII range...
return (preg_match('/(?:[^\x00-\x7F])/', $str) !== 1);
}
//--------------------------------------------------------------------
/**
* Tests whether a string contains only 7bit ASCII bytes with device
* control codes omitted. The device control codes can be found on the
* second table here: http://www.w3schools.com/tags/ref_ascii.asp
*
* @param string
* @return boolean TRUE if it's all ASCII without device control codes
* @package utf8
* @see utf8_is_ascii
*/
function utf8_is_ascii_ctrl($str)
{
if (strlen($str) > 0) {
// Search for any bytes which are outside the ASCII range,
// or are device control codes
return (preg_match('/[^\x09\x0A\x0D\x20-\x7E]/', $str) !== 1);
}
return false;
}
//--------------------------------------------------------------------
/**
* Strip out all non-7bit ASCII bytes
* If you need to transmit a string to system which you know can only
* support 7bit ASCII, you could use this function.
* @param string
* @return string with non ASCII bytes removed
* @package utf8
* @see utf8_strip_non_ascii_ctrl
*/
function utf8_strip_non_ascii($str)
{
ob_start();
while (
preg_match(
'/^([\x00-\x7F]+)|([^\x00-\x7F]+)/S',
$str,
$matches
)
) {
if (!isset($matches[2])) {
echo $matches[0];
}
$str = substr($str, strlen($matches[0]));
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
//--------------------------------------------------------------------
/**
* Strip out device control codes in the ASCII range
* which are not permitted in XML. Note that this leaves
* multi-byte characters untouched - it only removes device
* control codes
* @see http://hsivonen.iki.fi/producing-xml/#controlchar
* @param string
* @return string control codes removed
*/
function utf8_strip_ascii_ctrl($str)
{
ob_start();
while (
preg_match(
'/^([^\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+)|([\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+)/S',
$str,
$matches
)
) {
if (!isset($matches[2])) {
echo $matches[0];
}
$str = substr($str, strlen($matches[0]));
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
//--------------------------------------------------------------------
/**
* Strip out all non 7bit ASCII bytes and ASCII device control codes.
* For a list of ASCII device control codes see the 2nd table here:
* http://www.w3schools.com/tags/ref_ascii.asp
*
* @param string
* @return boolean TRUE if it's all ASCII
* @package utf8
*/
function utf8_strip_non_ascii_ctrl($str)
{
ob_start();
while (
preg_match(
'/^([\x09\x0A\x0D\x20-\x7E]+)|([^\x09\x0A\x0D\x20-\x7E]+)/S',
$str,
$matches
)
) {
if (!isset($matches[2])) {
echo $matches[0];
}
$str = substr($str, strlen($matches[0]));
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
//---------------------------------------------------------------
/**
* Replace accented UTF-8 characters by unaccented ASCII-7 "equivalents".
* The purpose of this function is to replace characters commonly found in Latin
* alphabets with something more or less equivalent from the ASCII range. This can
* be useful for converting a UTF-8 to something ready for a filename, for example.
* Following the use of this function, you would probably also pass the string
* through utf8_strip_non_ascii to clean out any other non-ASCII chars
* Use the optional parameter to just deaccent lower ($case = -1) or upper ($case = 1)
* letters. Default is to deaccent both cases ($case = 0)
*
* For a more complete implementation of transliteration, see the utf8_to_ascii package
* available from the phputf8 project downloads:
* http://prdownloads.sourceforge.net/phputf8
*
* @param string UTF-8 string
* @param int (optional) -1 lowercase only, +1 uppercase only, 1 both cases
* @param string UTF-8 with accented characters replaced by ASCII chars
* @return string accented chars replaced with ascii equivalents
* @author Andreas Gohr <andi@splitbrain.org>
* @package utf8
*/
function utf8_accents_to_ascii($str, $case = 0)
{
static $UTF8_LOWER_ACCENTS = null;
static $UTF8_UPPER_ACCENTS = null;
if ($case <= 0) {
if (is_null($UTF8_LOWER_ACCENTS)) {
$UTF8_LOWER_ACCENTS = [
'à' => 'a', 'ô' => 'o', 'ď' => 'd', 'ḟ' => 'f', 'ë' => 'e', 'š' => 's', 'ơ' => 'o',
'ß' => 'ss', 'ă' => 'a', 'ř' => 'r', 'ț' => 't', 'ň' => 'n', 'ā' => 'a', 'ķ' => 'k',
'ŝ' => 's', 'ỳ' => 'y', 'ņ' => 'n', 'ĺ' => 'l', 'ħ' => 'h', 'ṗ' => 'p', 'ó' => 'o',
'ú' => 'u', 'ě' => 'e', 'é' => 'e', 'ç' => 'c', 'ẁ' => 'w', 'ċ' => 'c', 'õ' => 'o',
'ṡ' => 's', 'ø' => 'o', 'ģ' => 'g', 'ŧ' => 't', 'ș' => 's', 'ė' => 'e', 'ĉ' => 'c',
'ś' => 's', 'î' => 'i', 'ű' => 'u', 'ć' => 'c', 'ę' => 'e', 'ŵ' => 'w', 'ṫ' => 't',
'ū' => 'u', 'č' => 'c', 'ö' => 'oe', 'è' => 'e', 'ŷ' => 'y', 'ą' => 'a', 'ł' => 'l',
'ų' => 'u', 'ů' => 'u', 'ş' => 's', 'ğ' => 'g', 'ļ' => 'l', 'ƒ' => 'f', 'ž' => 'z',
'ẃ' => 'w', 'ḃ' => 'b', 'å' => 'a', 'ì' => 'i', 'ï' => 'i', 'ḋ' => 'd', 'ť' => 't',
'ŗ' => 'r', 'ä' => 'ae', 'í' => 'i', 'ŕ' => 'r', 'ê' => 'e', 'ü' => 'ue', 'ò' => 'o',
'ē' => 'e', 'ñ' => 'n', 'ń' => 'n', 'ĥ' => 'h', 'ĝ' => 'g', 'đ' => 'd', 'ĵ' => 'j',
'ÿ' => 'y', 'ũ' => 'u', 'ŭ' => 'u', 'ư' => 'u', 'ţ' => 't', 'ý' => 'y', 'ő' => 'o',
'â' => 'a', 'ľ' => 'l', 'ẅ' => 'w', 'ż' => 'z', 'ī' => 'i', 'ã' => 'a', 'ġ' => 'g',
'ṁ' => 'm', 'ō' => 'o', 'ĩ' => 'i', 'ù' => 'u', 'į' => 'i', 'ź' => 'z', 'á' => 'a',
'û' => 'u', 'þ' => 'th', 'ð' => 'dh', 'æ' => 'ae', 'µ' => 'u', 'ĕ' => 'e',
];
}
$str = str_replace(
array_keys($UTF8_LOWER_ACCENTS),
array_values($UTF8_LOWER_ACCENTS),
$str
);
}
if ($case >= 0) {
if (is_null($UTF8_UPPER_ACCENTS)) {
$UTF8_UPPER_ACCENTS = [
'À' => 'A', 'Ô' => 'O', 'Ď' => 'D', 'Ḟ' => 'F', 'Ë' => 'E', 'Š' => 'S', 'Ơ' => 'O',
'Ă' => 'A', 'Ř' => 'R', 'Ț' => 'T', 'Ň' => 'N', 'Ā' => 'A', 'Ķ' => 'K',
'Ŝ' => 'S', 'Ỳ' => 'Y', 'Ņ' => 'N', 'Ĺ' => 'L', 'Ħ' => 'H', 'Ṗ' => 'P', 'Ó' => 'O',
'Ú' => 'U', 'Ě' => 'E', 'É' => 'E', 'Ç' => 'C', 'Ẁ' => 'W', 'Ċ' => 'C', 'Õ' => 'O',
'Ṡ' => 'S', 'Ø' => 'O', 'Ģ' => 'G', 'Ŧ' => 'T', 'Ș' => 'S', 'Ė' => 'E', 'Ĉ' => 'C',
'Ś' => 'S', 'Î' => 'I', 'Ű' => 'U', 'Ć' => 'C', 'Ę' => 'E', 'Ŵ' => 'W', 'Ṫ' => 'T',
'Ū' => 'U', 'Č' => 'C', 'Ö' => 'Oe', 'È' => 'E', 'Ŷ' => 'Y', 'Ą' => 'A', 'Ł' => 'L',
'Ų' => 'U', 'Ů' => 'U', 'Ş' => 'S', 'Ğ' => 'G', 'Ļ' => 'L', 'Ƒ' => 'F', 'Ž' => 'Z',
'Ẃ' => 'W', 'Ḃ' => 'B', 'Å' => 'A', 'Ì' => 'I', 'Ï' => 'I', 'Ḋ' => 'D', 'Ť' => 'T',
'Ŗ' => 'R', 'Ä' => 'Ae', 'Í' => 'I', 'Ŕ' => 'R', 'Ê' => 'E', 'Ü' => 'Ue', 'Ò' => 'O',
'Ē' => 'E', 'Ñ' => 'N', 'Ń' => 'N', 'Ĥ' => 'H', 'Ĝ' => 'G', 'Đ' => 'D', 'Ĵ' => 'J',
'Ÿ' => 'Y', 'Ũ' => 'U', 'Ŭ' => 'U', 'Ư' => 'U', 'Ţ' => 'T', 'Ý' => 'Y', 'Ő' => 'O',
'Â' => 'A', 'Ľ' => 'L', 'Ẅ' => 'W', 'Ż' => 'Z', 'Ī' => 'I', 'Ã' => 'A', 'Ġ' => 'G',
'Ṁ' => 'M', 'Ō' => 'O', 'Ĩ' => 'I', 'Ù' => 'U', 'Į' => 'I', 'Ź' => 'Z', 'Á' => 'A',
'Û' => 'U', 'Þ' => 'Th', 'Ð' => 'Dh', 'Æ' => 'Ae', 'Ĕ' => 'E',
];
}
$str = str_replace(
array_keys($UTF8_UPPER_ACCENTS),
array_values($UTF8_UPPER_ACCENTS),
$str
);
}
return $str;
}

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<?php
/**
* Tools for locating / replacing bad bytes in UTF-8 strings
* The Original Code is Mozilla Communicator client code.
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
* Ported to PHP by Henri Sivonen (http://hsivonen.iki.fi)
* Slight modifications to fit with phputf8 library by Harry Fuecks (hfuecks gmail com)
* @see http://lxr.mozilla.org/seamonkey/source/intl/uconv/src/nsUTF8ToUnicode.cpp
* @see http://lxr.mozilla.org/seamonkey/source/intl/uconv/src/nsUnicodeToUTF8.cpp
* @see http://hsivonen.iki.fi/php-utf8/
* @package utf8
* @see utf8_is_valid
*/
//--------------------------------------------------------------------
/**
* Locates the first bad byte in a UTF-8 string returning it's
* byte index in the string
* PCRE Pattern to locate bad bytes in a UTF-8 string
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @param string
* @return mixed integer byte index or FALSE if no bad found
* @package utf8
*/
function utf8_bad_find($str)
{
$UTF8_BAD =
'([\x00-\x7F]' . # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]' . # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]' . # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' . # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]' . # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}' . # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}' . # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}' . # plane 16
'|(.{1}))'; # invalid byte
$pos = 0;
$badList = [];
while (preg_match('/' . $UTF8_BAD . '/S', $str, $matches)) {
$bytes = strlen($matches[0]);
if (isset($matches[2])) {
return $pos;
}
$pos += $bytes;
$str = substr($str, $bytes);
}
return false;
}
//--------------------------------------------------------------------
/**
* Locates all bad bytes in a UTF-8 string and returns a list of their
* byte index in the string
* PCRE Pattern to locate bad bytes in a UTF-8 string
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @param string
* @return mixed array of integers or FALSE if no bad found
* @package utf8
*/
function utf8_bad_findall($str)
{
$UTF8_BAD =
'([\x00-\x7F]' . # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]' . # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]' . # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' . # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]' . # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}' . # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}' . # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}' . # plane 16
'|(.{1}))'; # invalid byte
$pos = 0;
$badList = [];
while (preg_match('/' . $UTF8_BAD . '/S', $str, $matches)) {
$bytes = strlen($matches[0]);
if (isset($matches[2])) {
$badList[] = $pos;
}
$pos += $bytes;
$str = substr($str, $bytes);
}
if (count($badList) > 0) {
return $badList;
}
return false;
}
//--------------------------------------------------------------------
/**
* Strips out any bad bytes from a UTF-8 string and returns the rest
* PCRE Pattern to locate bad bytes in a UTF-8 string
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @param string
* @return string
* @package utf8
*/
function utf8_bad_strip($str)
{
$UTF8_BAD =
'([\x00-\x7F]' . # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]' . # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]' . # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' . # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]' . # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}' . # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}' . # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}' . # plane 16
'|(.{1}))'; # invalid byte
ob_start();
while (preg_match('/' . $UTF8_BAD . '/S', $str, $matches)) {
if (!isset($matches[2])) {
echo $matches[0];
}
$str = substr($str, strlen($matches[0]));
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
//--------------------------------------------------------------------
/**
* Replace bad bytes with an alternative character - ASCII character
* recommended is replacement char
* PCRE Pattern to locate bad bytes in a UTF-8 string
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @param string to search
* @param string to replace bad bytes with (defaults to '?') - use ASCII
* @return string
* @package utf8
*/
function utf8_bad_replace($str, $replace = '?')
{
$UTF8_BAD =
'([\x00-\x7F]' . # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]' . # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]' . # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' . # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]' . # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}' . # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}' . # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}' . # plane 16
'|(.{1}))'; # invalid byte
ob_start();
while (preg_match('/' . $UTF8_BAD . '/S', $str, $matches)) {
if (!isset($matches[2])) {
echo $matches[0];
} else {
echo $replace;
}
$str = substr($str, strlen($matches[0]));
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}
//--------------------------------------------------------------------
/**
* Return code from utf8_bad_identify() when a five octet sequence is detected.
* Note: 5 octets sequences are valid UTF-8 but are not supported by Unicode so
* do not represent a useful character
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_5OCTET', 1);
/**
* Return code from utf8_bad_identify() when a six octet sequence is detected.
* Note: 6 octets sequences are valid UTF-8 but are not supported by Unicode so
* do not represent a useful character
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_6OCTET', 2);
/**
* Return code from utf8_bad_identify().
* Invalid octet for use as start of multi-byte UTF-8 sequence
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_SEQID', 3);
/**
* Return code from utf8_bad_identify().
* From Unicode 3.1, non-shortest form is illegal
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_NONSHORT', 4);
/**
* Return code from utf8_bad_identify().
* From Unicode 3.2, surrogate characters are illegal
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_SURROGATE', 5);
/**
* Return code from utf8_bad_identify().
* Codepoints outside the Unicode range are illegal
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_UNIOUTRANGE', 6);
/**
* Return code from utf8_bad_identify().
* Incomplete multi-octet sequence
* Note: this is kind of a "catch-all"
* @see utf8_bad_identify
* @package utf8
*/
define('UTF8_BAD_SEQINCOMPLETE', 7);
//--------------------------------------------------------------------
/**
* Reports on the type of bad byte found in a UTF-8 string. Returns a
* status code on the first bad byte found
*
* Joomla modification - As of PHP 7.4, curly brace access has been deprecated. As a result this function has been
* modified to use square brace syntax
* See https://github.com/php/php-src/commit/d574df63dc375f5fc9202ce5afde23f866b6450a
* for additional references
*
* @author <hsivonen@iki.fi>
* @param string UTF-8 encoded string
* @return mixed integer constant describing problem or FALSE if valid UTF-8
* @see utf8_bad_explain
* @see http://hsivonen.iki.fi/php-utf8/
* @package utf8
*/
function utf8_bad_identify($str, &$i)
{
$mState = 0; // cached expected number of octets after the current octet
// until the beginning of the next UTF8 character sequence
$mUcs4 = 0; // cached Unicode character
$mBytes = 1; // cached expected number of octets in the current sequence
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
$in = ord($str[$i]);
if ($mState == 0) {
// When mState is zero we expect either a US-ASCII character or a
// multi-octet sequence.
if (0 == (0x80 & ($in))) {
// US-ASCII, pass straight through.
$mBytes = 1;
} elseif (0xC0 == (0xE0 & ($in))) {
// First octet of 2 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x1F) << 6;
$mState = 1;
$mBytes = 2;
} elseif (0xE0 == (0xF0 & ($in))) {
// First octet of 3 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x0F) << 12;
$mState = 2;
$mBytes = 3;
} elseif (0xF0 == (0xF8 & ($in))) {
// First octet of 4 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x07) << 18;
$mState = 3;
$mBytes = 4;
} elseif (0xF8 == (0xFC & ($in))) {
/* First octet of 5 octet sequence.
*
* This is illegal because the encoded codepoint must be either
* (a) not the shortest form or
* (b) outside the Unicode range of 0-0x10FFFF.
*/
return UTF8_BAD_5OCTET;
} elseif (0xFC == (0xFE & ($in))) {
// First octet of 6 octet sequence, see comments for 5 octet sequence.
return UTF8_BAD_6OCTET;
} else {
// Current octet is neither in the US-ASCII range nor a legal first
// octet of a multi-octet sequence.
return UTF8_BAD_SEQID;
}
} else {
// When mState is non-zero, we expect a continuation of the multi-octet
// sequence
if (0x80 == (0xC0 & ($in))) {
// Legal continuation.
$shift = ($mState - 1) * 6;
$tmp = $in;
$tmp = ($tmp & 0x0000003F) << $shift;
$mUcs4 |= $tmp;
/**
* End of the multi-octet sequence. mUcs4 now contains the final
* Unicode codepoint to be output
*/
if (0 == --$mState) {
// From Unicode 3.1, non-shortest form is illegal
if (
((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
((4 == $mBytes) && ($mUcs4 < 0x10000))
) {
return UTF8_BAD_NONSHORT;
// From Unicode 3.2, surrogate characters are illegal
} elseif (($mUcs4 & 0xFFFFF800) == 0xD800) {
return UTF8_BAD_SURROGATE;
// Codepoints outside the Unicode range are illegal
} elseif ($mUcs4 > 0x10FFFF) {
return UTF8_BAD_UNIOUTRANGE;
}
//initialize UTF8 cache
$mState = 0;
$mUcs4 = 0;
$mBytes = 1;
}
} else {
// ((0xC0 & (*in) != 0x80) && (mState != 0))
// Incomplete multi-octet sequence.
$i--;
return UTF8_BAD_SEQINCOMPLETE;
}
}
}
if ($mState != 0) {
// Incomplete multi-octet sequence.
$i--;
return UTF8_BAD_SEQINCOMPLETE;
}
// No bad octets found
$i = null;
return false;
}
//--------------------------------------------------------------------
/**
* Takes a return code from utf8_bad_identify() are returns a message
* (in English) explaining what the problem is.
* @param int return code from utf8_bad_identify
* @return mixed string message or FALSE if return code unknown
* @see utf8_bad_identify
* @package utf8
*/
function utf8_bad_explain($code)
{
switch ($code) {
case UTF8_BAD_5OCTET:
return 'Five octet sequences are valid UTF-8 but are not supported by Unicode';
break;
case UTF8_BAD_6OCTET:
return 'Six octet sequences are valid UTF-8 but are not supported by Unicode';
break;
case UTF8_BAD_SEQID:
return 'Invalid octet for use as start of multi-byte UTF-8 sequence';
break;
case UTF8_BAD_NONSHORT:
return 'From Unicode 3.1, non-shortest form is illegal';
break;
case UTF8_BAD_SURROGATE:
return 'From Unicode 3.2, surrogate characters are illegal';
break;
case UTF8_BAD_UNIOUTRANGE:
return 'Codepoints outside the Unicode range are illegal';
break;
case UTF8_BAD_SEQINCOMPLETE:
return 'Incomplete multi-octet sequence';
break;
}
trigger_error('Unknown error code: ' . $code, E_USER_WARNING);
return false;
}

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<?php
/**
* PCRE Regular expressions for UTF-8. Note this file is not actually used by
* the rest of the library but these regular expressions can be useful to have
* available.
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @package utf8
*/
//--------------------------------------------------------------------
/**
* PCRE Pattern to check a UTF-8 string is valid
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @package utf8
*/
$UTF8_VALID = '^(' .
'[\x00-\x7F]' . # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]' . # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]' . # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' . # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]' . # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}' . # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}' . # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}' . # plane 16
')*$';
//--------------------------------------------------------------------
/**
* PCRE Pattern to match single UTF-8 characters
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @package utf8
*/
$UTF8_MATCH =
'([\x00-\x7F])' . # ASCII (including control chars)
'|([\xC2-\xDF][\x80-\xBF])' . # non-overlong 2-byte
'|(\xE0[\xA0-\xBF][\x80-\xBF])' . # excluding overlongs
'|([\xE1-\xEC\xEE\xEF][\x80-\xBF]{2})' . # straight 3-byte
'|(\xED[\x80-\x9F][\x80-\xBF])' . # excluding surrogates
'|(\xF0[\x90-\xBF][\x80-\xBF]{2})' . # planes 1-3
'|([\xF1-\xF3][\x80-\xBF]{3})' . # planes 4-15
'|(\xF4[\x80-\x8F][\x80-\xBF]{2})'; # plane 16
//--------------------------------------------------------------------
/**
* PCRE Pattern to locate bad bytes in a UTF-8 string
* Comes from W3 FAQ: Multilingual Forms
* Note: modified to include full ASCII range including control chars
* @see http://www.w3.org/International/questions/qa-forms-utf-8
* @package utf8
*/
$UTF8_BAD =
'([\x00-\x7F]' . # ASCII (including control chars)
'|[\xC2-\xDF][\x80-\xBF]' . # non-overlong 2-byte
'|\xE0[\xA0-\xBF][\x80-\xBF]' . # excluding overlongs
'|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' . # straight 3-byte
'|\xED[\x80-\x9F][\x80-\xBF]' . # excluding surrogates
'|\xF0[\x90-\xBF][\x80-\xBF]{2}' . # planes 1-3
'|[\xF1-\xF3][\x80-\xBF]{3}' . # planes 4-15
'|\xF4[\x80-\x8F][\x80-\xBF]{2}' . # plane 16
'|(.{1}))'; # invalid byte

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<?php
/**
* Locate a byte index given a UTF-8 character index
* @package utf8
*/
//--------------------------------------------------------------------
/**
* Given a string and a character index in the string, in
* terms of the UTF-8 character position, returns the byte
* index of that character. Can be useful when you want to
* PHP's native string functions but we warned, locating
* the byte can be expensive
* Takes variable number of parameters - first must be
* the search string then 1 to n UTF-8 character positions
* to obtain byte indexes for - it is more efficient to search
* the string for multiple characters at once, than make
* repeated calls to this function
*
* @author Chris Smith<chris@jalakai.co.uk>
* @param string string to locate index in
* @param int (n times)
* @return mixed - int if only one input int, array if more
* @return boolean TRUE if it's all ASCII
* @package utf8
*/
function utf8_byte_position()
{
$args = func_get_args();
$str =& array_shift($args);
if (!is_string($str)) {
return false;
}
$result = [];
// trivial byte index, character offset pair
$prev = [0,0];
// use a short piece of str to estimate bytes per character
// $i (& $j) -> byte indexes into $str
$i = utf8_locate_next_chr($str, 300);
// $c -> character offset into $str
$c = strlen(utf8_decode(substr($str, 0, $i)));
// deal with arguments from lowest to highest
sort($args);
foreach ($args as $offset) {
// sanity checks FIXME
// 0 is an easy check
if ($offset == 0) {
$result[] = 0;
continue;
}
// ensure no endless looping
$safety_valve = 50;
do {
if (($c - $prev[1]) == 0) {
// Hack: gone past end of string
$error = 0;
$i = strlen($str);
break;
}
$j = $i + (int)(($offset - $c) * ($i - $prev[0]) / ($c - $prev[1]));
// correct to utf8 character boundary
$j = utf8_locate_next_chr($str, $j);
// save the index, offset for use next iteration
$prev = [$i,$c];
if ($j > $i) {
// determine new character offset
$c += strlen(utf8_decode(substr($str, $i, $j - $i)));
} else {
// ditto
$c -= strlen(utf8_decode(substr($str, $j, $i - $j)));
}
$error = abs($c - $offset);
// ready for next time around
$i = $j;
// from 7 it is faster to iterate over the string
} while (($error > 7) && --$safety_valve);
if ($error && $error <= 7) {
if ($c < $offset) {
// move up
while ($error--) {
$i = utf8_locate_next_chr($str, ++$i);
}
} else {
// move down
while ($error--) {
$i = utf8_locate_current_chr($str, --$i);
}
}
// ready for next arg
$c = $offset;
}
$result[] = $i;
}
if (count($result) == 1) {
return $result[0];
}
return $result;
}
//--------------------------------------------------------------------
/**
* Given a string and any byte index, returns the byte index
* of the start of the current UTF-8 character, relative to supplied
* position. If the current character begins at the same place as the
* supplied byte index, that byte index will be returned. Otherwise
* this function will step backwards, looking for the index where
* current UTF-8 character begins
* @author Chris Smith<chris@jalakai.co.uk>
* @param string
* @param int byte index in the string
* @return int byte index of start of next UTF-8 character
* @package utf8
*/
function utf8_locate_current_chr(&$str, $idx)
{
if ($idx <= 0) {
return 0;
}
$limit = strlen($str);
if ($idx >= $limit) {
return $limit;
}
// Binary value for any byte after the first in a multi-byte UTF-8 character
// will be like 10xxxxxx so & 0xC0 can be used to detect this kind
// of byte - assuming well formed UTF-8
while ($idx && ((ord($str[$idx]) & 0xC0) == 0x80)) {
$idx--;
}
return $idx;
}
//--------------------------------------------------------------------
/**
* Given a string and any byte index, returns the byte index
* of the start of the next UTF-8 character, relative to supplied
* position. If the next character begins at the same place as the
* supplied byte index, that byte index will be returned.
* @author Chris Smith<chris@jalakai.co.uk>
* @param string
* @param int byte index in the string
* @return int byte index of start of next UTF-8 character
* @package utf8
*/
function utf8_locate_next_chr(&$str, $idx)
{
if ($idx <= 0) {
return 0;
}
$limit = strlen($str);
if ($idx >= $limit) {
return $limit;
}
// Binary value for any byte after the first in a multi-byte UTF-8 character
// will be like 10xxxxxx so & 0xC0 can be used to detect this kind
// of byte - assuming well formed UTF-8
while (($idx < $limit) && ((ord($str[$idx]) & 0xC0) == 0x80)) {
$idx++;
}
return $idx;
}

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<?php
/**
* Utilities for processing "special" characters in UTF-8. "Special" largely means anything which would
* be regarded as a non-word character, like ASCII control characters and punctuation. This has a "Roman"
* bias - it would be unaware of modern Chinese "punctuation" characters for example.
* Note: requires utils/unicode.php to be loaded
* @package utf8
* @see utf8_is_valid
*/
//--------------------------------------------------------------------
/**
* Used internally. Builds a PCRE pattern from the $UTF8_SPECIAL_CHARS
* array defined in this file
* The $UTF8_SPECIAL_CHARS should contain all special characters (non-letter/non-digit)
* defined in the various local charsets - it's not a complete list of
* non-alphanum characters in UTF-8. It's not perfect but should match most
* cases of special chars.
* This function adds the control chars 0x00 to 0x19 to the array of
* special chars (they are not included in $UTF8_SPECIAL_CHARS)
* @package utf8
* @return string
* @see utf8_from_unicode
* @see utf8_is_word_chars
* @see utf8_strip_specials
*/
function utf8_specials_pattern()
{
static $pattern = null;
if (!$pattern) {
$UTF8_SPECIAL_CHARS = [
0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f, 0x0020, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c,
0x002f, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f, 0x0040, 0x005b,
0x005c, 0x005d, 0x005e, 0x0060, 0x007b, 0x007c, 0x007d, 0x007e,
0x007f, 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, 0x0088,
0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f, 0x0090, 0x0091, 0x0092,
0x0093, 0x0094, 0x0095, 0x0096, 0x0097, 0x0098, 0x0099, 0x009a, 0x009b, 0x009c,
0x009d, 0x009e, 0x009f, 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6,
0x00a7, 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af, 0x00b0,
0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7, 0x00b8, 0x00b9, 0x00ba,
0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf, 0x00d7, 0x00f7, 0x02c7, 0x02d8, 0x02d9,
0x02da, 0x02db, 0x02dc, 0x02dd, 0x0300, 0x0301, 0x0303, 0x0309, 0x0323, 0x0384,
0x0385, 0x0387, 0x03b2, 0x03c6, 0x03d1, 0x03d2, 0x03d5, 0x03d6, 0x05b0, 0x05b1,
0x05b2, 0x05b3, 0x05b4, 0x05b5, 0x05b6, 0x05b7, 0x05b8, 0x05b9, 0x05bb, 0x05bc,
0x05bd, 0x05be, 0x05bf, 0x05c0, 0x05c1, 0x05c2, 0x05c3, 0x05f3, 0x05f4, 0x060c,
0x061b, 0x061f, 0x0640, 0x064b, 0x064c, 0x064d, 0x064e, 0x064f, 0x0650, 0x0651,
0x0652, 0x066a, 0x0e3f, 0x200c, 0x200d, 0x200e, 0x200f, 0x2013, 0x2014, 0x2015,
0x2017, 0x2018, 0x2019, 0x201a, 0x201c, 0x201d, 0x201e, 0x2020, 0x2021, 0x2022,
0x2026, 0x2030, 0x2032, 0x2033, 0x2039, 0x203a, 0x2044, 0x20a7, 0x20aa, 0x20ab,
0x20ac, 0x2116, 0x2118, 0x2122, 0x2126, 0x2135, 0x2190, 0x2191, 0x2192, 0x2193,
0x2194, 0x2195, 0x21b5, 0x21d0, 0x21d1, 0x21d2, 0x21d3, 0x21d4, 0x2200, 0x2202,
0x2203, 0x2205, 0x2206, 0x2207, 0x2208, 0x2209, 0x220b, 0x220f, 0x2211, 0x2212,
0x2215, 0x2217, 0x2219, 0x221a, 0x221d, 0x221e, 0x2220, 0x2227, 0x2228, 0x2229,
0x222a, 0x222b, 0x2234, 0x223c, 0x2245, 0x2248, 0x2260, 0x2261, 0x2264, 0x2265,
0x2282, 0x2283, 0x2284, 0x2286, 0x2287, 0x2295, 0x2297, 0x22a5, 0x22c5, 0x2310,
0x2320, 0x2321, 0x2329, 0x232a, 0x2469, 0x2500, 0x2502, 0x250c, 0x2510, 0x2514,
0x2518, 0x251c, 0x2524, 0x252c, 0x2534, 0x253c, 0x2550, 0x2551, 0x2552, 0x2553,
0x2554, 0x2555, 0x2556, 0x2557, 0x2558, 0x2559, 0x255a, 0x255b, 0x255c, 0x255d,
0x255e, 0x255f, 0x2560, 0x2561, 0x2562, 0x2563, 0x2564, 0x2565, 0x2566, 0x2567,
0x2568, 0x2569, 0x256a, 0x256b, 0x256c, 0x2580, 0x2584, 0x2588, 0x258c, 0x2590,
0x2591, 0x2592, 0x2593, 0x25a0, 0x25b2, 0x25bc, 0x25c6, 0x25ca, 0x25cf, 0x25d7,
0x2605, 0x260e, 0x261b, 0x261e, 0x2660, 0x2663, 0x2665, 0x2666, 0x2701, 0x2702,
0x2703, 0x2704, 0x2706, 0x2707, 0x2708, 0x2709, 0x270c, 0x270d, 0x270e, 0x270f,
0x2710, 0x2711, 0x2712, 0x2713, 0x2714, 0x2715, 0x2716, 0x2717, 0x2718, 0x2719,
0x271a, 0x271b, 0x271c, 0x271d, 0x271e, 0x271f, 0x2720, 0x2721, 0x2722, 0x2723,
0x2724, 0x2725, 0x2726, 0x2727, 0x2729, 0x272a, 0x272b, 0x272c, 0x272d, 0x272e,
0x272f, 0x2730, 0x2731, 0x2732, 0x2733, 0x2734, 0x2735, 0x2736, 0x2737, 0x2738,
0x2739, 0x273a, 0x273b, 0x273c, 0x273d, 0x273e, 0x273f, 0x2740, 0x2741, 0x2742,
0x2743, 0x2744, 0x2745, 0x2746, 0x2747, 0x2748, 0x2749, 0x274a, 0x274b, 0x274d,
0x274f, 0x2750, 0x2751, 0x2752, 0x2756, 0x2758, 0x2759, 0x275a, 0x275b, 0x275c,
0x275d, 0x275e, 0x2761, 0x2762, 0x2763, 0x2764, 0x2765, 0x2766, 0x2767, 0x277f,
0x2789, 0x2793, 0x2794, 0x2798, 0x2799, 0x279a, 0x279b, 0x279c, 0x279d, 0x279e,
0x279f, 0x27a0, 0x27a1, 0x27a2, 0x27a3, 0x27a4, 0x27a5, 0x27a6, 0x27a7, 0x27a8,
0x27a9, 0x27aa, 0x27ab, 0x27ac, 0x27ad, 0x27ae, 0x27af, 0x27b1, 0x27b2, 0x27b3,
0x27b4, 0x27b5, 0x27b6, 0x27b7, 0x27b8, 0x27b9, 0x27ba, 0x27bb, 0x27bc, 0x27bd,
0x27be, 0xf6d9, 0xf6da, 0xf6db, 0xf8d7, 0xf8d8, 0xf8d9, 0xf8da, 0xf8db, 0xf8dc,
0xf8dd, 0xf8de, 0xf8df, 0xf8e0, 0xf8e1, 0xf8e2, 0xf8e3, 0xf8e4, 0xf8e5, 0xf8e6,
0xf8e7, 0xf8e8, 0xf8e9, 0xf8ea, 0xf8eb, 0xf8ec, 0xf8ed, 0xf8ee, 0xf8ef, 0xf8f0,
0xf8f1, 0xf8f2, 0xf8f3, 0xf8f4, 0xf8f5, 0xf8f6, 0xf8f7, 0xf8f8, 0xf8f9, 0xf8fa,
0xf8fb, 0xf8fc, 0xf8fd, 0xf8fe, 0xfe7c, 0xfe7d,
];
$pattern = preg_quote(utf8_from_unicode($UTF8_SPECIAL_CHARS), '/');
$pattern = '/[\x00-\x19' . $pattern . ']/u';
}
return $pattern;
}
//--------------------------------------------------------------------
/**
* Checks a string for whether it contains only word characters. This
* is logically equivalent to the \w PCRE meta character. Note that
* this is not a 100% guarantee that the string only contains alpha /
* numeric characters but just that common non-alphanumeric are not
* in the string, including ASCII device control characters.
* @package utf8
* @param string to check
* @return boolean TRUE if the string only contains word characters
* @see utf8_specials_pattern
*/
function utf8_is_word_chars($str)
{
return !(bool)preg_match(utf8_specials_pattern(), $str);
}
//--------------------------------------------------------------------
/**
* Removes special characters (nonalphanumeric) from a UTF-8 string
*
* This can be useful as a helper for sanitizing a string for use as
* something like a file name or a unique identifier. Be warned though
* it does not handle all possible non-alphanumeric characters and is
* not intended is some kind of security / injection filter.
*
* @package utf8
* @author Andreas Gohr <andi@splitbrain.org>
* @param string $string The UTF8 string to strip of special chars
* @param string (optional) $repl Replace special with this string
* @return string with common non-alphanumeric characters removed
* @see utf8_specials_pattern
*/
function utf8_strip_specials($string, $repl = '')
{
return preg_replace(utf8_specials_pattern(), $repl, $string);
}

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<?php
/**
* Tools for conversion between UTF-8 and unicode
* The Original Code is Mozilla Communicator client code.
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
* Ported to PHP by Henri Sivonen (http://hsivonen.iki.fi)
* Slight modifications to fit with phputf8 library by Harry Fuecks (hfuecks gmail com)
* @see http://lxr.mozilla.org/seamonkey/source/intl/uconv/src/nsUTF8ToUnicode.cpp
* @see http://lxr.mozilla.org/seamonkey/source/intl/uconv/src/nsUnicodeToUTF8.cpp
* @see http://hsivonen.iki.fi/php-utf8/
* @package utf8
*/
//--------------------------------------------------------------------
/**
* Takes an UTF-8 string and returns an array of ints representing the
* Unicode characters. Astral planes are supported ie. the ints in the
* output can be > 0xFFFF. Occurrances of the BOM are ignored. Surrogates
* are not allowed.
* Returns false if the input string isn't a valid UTF-8 octet sequence
* and raises a PHP error at level E_USER_WARNING
* Note: this function has been modified slightly in this library to
* trigger errors on encountering bad bytes
*
* Joomla modification - As of PHP 7.4, curly brace access has been deprecated. As a result this function has been
* modified to use square brace syntax
* See https://github.com/php/php-src/commit/d574df63dc375f5fc9202ce5afde23f866b6450a
* for additional references
*
* @author <hsivonen@iki.fi>
* @param string UTF-8 encoded string
* @return mixed array of unicode code points or FALSE if UTF-8 invalid
* @see utf8_from_unicode
* @see http://hsivonen.iki.fi/php-utf8/
* @package utf8
*/
function utf8_to_unicode($str)
{
$mState = 0; // cached expected number of octets after the current octet
// until the beginning of the next UTF8 character sequence
$mUcs4 = 0; // cached Unicode character
$mBytes = 1; // cached expected number of octets in the current sequence
$out = [];
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
$in = ord($str[$i]);
if ($mState == 0) {
// When mState is zero we expect either a US-ASCII character or a
// multi-octet sequence.
if (0 == (0x80 & ($in))) {
// US-ASCII, pass straight through.
$out[] = $in;
$mBytes = 1;
} elseif (0xC0 == (0xE0 & ($in))) {
// First octet of 2 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x1F) << 6;
$mState = 1;
$mBytes = 2;
} elseif (0xE0 == (0xF0 & ($in))) {
// First octet of 3 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x0F) << 12;
$mState = 2;
$mBytes = 3;
} elseif (0xF0 == (0xF8 & ($in))) {
// First octet of 4 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x07) << 18;
$mState = 3;
$mBytes = 4;
} elseif (0xF8 == (0xFC & ($in))) {
/* First octet of 5 octet sequence.
*
* This is illegal because the encoded codepoint must be either
* (a) not the shortest form or
* (b) outside the Unicode range of 0-0x10FFFF.
* Rather than trying to resynchronize, we will carry on until the end
* of the sequence and let the later error handling code catch it.
*/
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x03) << 24;
$mState = 4;
$mBytes = 5;
} elseif (0xFC == (0xFE & ($in))) {
// First octet of 6 octet sequence, see comments for 5 octet sequence.
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 1) << 30;
$mState = 5;
$mBytes = 6;
} else {
/* Current octet is neither in the US-ASCII range nor a legal first
* octet of a multi-octet sequence.
*/
trigger_error(
'utf8_to_unicode: Illegal sequence identifier ' .
'in UTF-8 at byte ' . $i,
E_USER_WARNING
);
return false;
}
} else {
// When mState is non-zero, we expect a continuation of the multi-octet
// sequence
if (0x80 == (0xC0 & ($in))) {
// Legal continuation.
$shift = ($mState - 1) * 6;
$tmp = $in;
$tmp = ($tmp & 0x0000003F) << $shift;
$mUcs4 |= $tmp;
/**
* End of the multi-octet sequence. mUcs4 now contains the final
* Unicode codepoint to be output
*/
if (0 == --$mState) {
/*
* Check for illegal sequences and codepoints.
*/
// From Unicode 3.1, non-shortest form is illegal
if (
((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
((4 == $mBytes) && ($mUcs4 < 0x10000)) ||
(4 < $mBytes) ||
// From Unicode 3.2, surrogate characters are illegal
(($mUcs4 & 0xFFFFF800) == 0xD800) ||
// Codepoints outside the Unicode range are illegal
($mUcs4 > 0x10FFFF)
) {
trigger_error(
'utf8_to_unicode: Illegal sequence or codepoint ' .
'in UTF-8 at byte ' . $i,
E_USER_WARNING
);
return false;
}
if (0xFEFF != $mUcs4) {
// BOM is legal but we don't want to output it
$out[] = $mUcs4;
}
//initialize UTF8 cache
$mState = 0;
$mUcs4 = 0;
$mBytes = 1;
}
} else {
/**
*((0xC0 & (*in) != 0x80) && (mState != 0))
* Incomplete multi-octet sequence.
*/
trigger_error(
'utf8_to_unicode: Incomplete multi-octet ' .
' sequence in UTF-8 at byte ' . $i,
E_USER_WARNING
);
return false;
}
}
}
return $out;
}
//--------------------------------------------------------------------
/**
* Takes an array of ints representing the Unicode characters and returns
* a UTF-8 string. Astral planes are supported ie. the ints in the
* input can be > 0xFFFF. Occurrances of the BOM are ignored. Surrogates
* are not allowed.
* Returns false if the input array contains ints that represent
* surrogates or are outside the Unicode range
* and raises a PHP error at level E_USER_WARNING
* Note: this function has been modified slightly in this library to use
* output buffering to concatenate the UTF-8 string (faster) as well as
* reference the array by it's keys
* @param array of unicode code points representing a string
* @return mixed UTF-8 string or FALSE if array contains invalid code points
* @author <hsivonen@iki.fi>
* @see utf8_to_unicode
* @see http://hsivonen.iki.fi/php-utf8/
* @package utf8
*/
function utf8_from_unicode($arr)
{
ob_start();
foreach (array_keys($arr) as $k) {
# ASCII range (including control chars)
if (($arr[$k] >= 0) && ($arr[$k] <= 0x007f)) {
echo chr($arr[$k]);
# 2 byte sequence
} elseif ($arr[$k] <= 0x07ff) {
echo chr(0xc0 | ($arr[$k] >> 6));
echo chr(0x80 | ($arr[$k] & 0x003f));
# Byte order mark (skip)
} elseif ($arr[$k] == 0xFEFF) {
// nop -- zap the BOM
# Test for illegal surrogates
} elseif ($arr[$k] >= 0xD800 && $arr[$k] <= 0xDFFF) {
// found a surrogate
trigger_error(
'utf8_from_unicode: Illegal surrogate ' .
'at index: ' . $k . ', value: ' . $arr[$k],
E_USER_WARNING
);
return false;
# 3 byte sequence
} elseif ($arr[$k] <= 0xffff) {
echo chr(0xe0 | ($arr[$k] >> 12));
echo chr(0x80 | (($arr[$k] >> 6) & 0x003f));
echo chr(0x80 | ($arr[$k] & 0x003f));
# 4 byte sequence
} elseif ($arr[$k] <= 0x10ffff) {
echo chr(0xf0 | ($arr[$k] >> 18));
echo chr(0x80 | (($arr[$k] >> 12) & 0x3f));
echo chr(0x80 | (($arr[$k] >> 6) & 0x3f));
echo chr(0x80 | ($arr[$k] & 0x3f));
} else {
trigger_error(
'utf8_from_unicode: Codepoint out of Unicode range ' .
'at index: ' . $k . ', value: ' . $arr[$k],
E_USER_WARNING
);
// out of range
return false;
}
}
$result = ob_get_contents();
ob_end_clean();
return $result;
}

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<?php
/**
* Tools for validing a UTF-8 string is well formed.
* The Original Code is Mozilla Communicator client code.
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
* Ported to PHP by Henri Sivonen (http://hsivonen.iki.fi)
* Slight modifications to fit with phputf8 library by Harry Fuecks (hfuecks gmail com)
* @see http://lxr.mozilla.org/seamonkey/source/intl/uconv/src/nsUTF8ToUnicode.cpp
* @see http://lxr.mozilla.org/seamonkey/source/intl/uconv/src/nsUnicodeToUTF8.cpp
* @see http://hsivonen.iki.fi/php-utf8/
* @package utf8
*/
//--------------------------------------------------------------------
/**
* Tests a string as to whether it's valid UTF-8 and supported by the
* Unicode standard
* Note: this function has been modified to simple return true or false
* @author <hsivonen@iki.fi>
* @param string UTF-8 encoded string
* @return boolean true if valid
* @see http://hsivonen.iki.fi/php-utf8/
* @see utf8_compliant
* @package utf8
*/
function utf8_is_valid($str)
{
$mState = 0; // cached expected number of octets after the current octet
// until the beginning of the next UTF8 character sequence
$mUcs4 = 0; // cached Unicode character
$mBytes = 1; // cached expected number of octets in the current sequence
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
/*
* Joomla modification - As of PHP 7.4, curly brace access has been deprecated. As a result the line below has
* been modified to use square brace syntax
* See https://github.com/php/php-src/commit/d574df63dc375f5fc9202ce5afde23f866b6450a
* for additional references
*/
$in = ord($str[$i]);
if ($mState == 0) {
// When mState is zero we expect either a US-ASCII character or a
// multi-octet sequence.
if (0 == (0x80 & ($in))) {
// US-ASCII, pass straight through.
$mBytes = 1;
} elseif (0xC0 == (0xE0 & ($in))) {
// First octet of 2 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x1F) << 6;
$mState = 1;
$mBytes = 2;
} elseif (0xE0 == (0xF0 & ($in))) {
// First octet of 3 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x0F) << 12;
$mState = 2;
$mBytes = 3;
} elseif (0xF0 == (0xF8 & ($in))) {
// First octet of 4 octet sequence
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x07) << 18;
$mState = 3;
$mBytes = 4;
} elseif (0xF8 == (0xFC & ($in))) {
/* First octet of 5 octet sequence.
*
* This is illegal because the encoded codepoint must be either
* (a) not the shortest form or
* (b) outside the Unicode range of 0-0x10FFFF.
* Rather than trying to resynchronize, we will carry on until the end
* of the sequence and let the later error handling code catch it.
*/
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 0x03) << 24;
$mState = 4;
$mBytes = 5;
} elseif (0xFC == (0xFE & ($in))) {
// First octet of 6 octet sequence, see comments for 5 octet sequence.
$mUcs4 = ($in);
$mUcs4 = ($mUcs4 & 1) << 30;
$mState = 5;
$mBytes = 6;
} else {
/* Current octet is neither in the US-ASCII range nor a legal first
* octet of a multi-octet sequence.
*/
return false;
}
} else {
// When mState is non-zero, we expect a continuation of the multi-octet
// sequence
if (0x80 == (0xC0 & ($in))) {
// Legal continuation.
$shift = ($mState - 1) * 6;
$tmp = $in;
$tmp = ($tmp & 0x0000003F) << $shift;
$mUcs4 |= $tmp;
/**
* End of the multi-octet sequence. mUcs4 now contains the final
* Unicode codepoint to be output
*/
if (0 == --$mState) {
/*
* Check for illegal sequences and codepoints.
*/
// From Unicode 3.1, non-shortest form is illegal
if (
((2 == $mBytes) && ($mUcs4 < 0x0080)) ||
((3 == $mBytes) && ($mUcs4 < 0x0800)) ||
((4 == $mBytes) && ($mUcs4 < 0x10000)) ||
(4 < $mBytes) ||
// From Unicode 3.2, surrogate characters are illegal
(($mUcs4 & 0xFFFFF800) == 0xD800) ||
// Codepoints outside the Unicode range are illegal
($mUcs4 > 0x10FFFF)
) {
return false;
}
//initialize UTF8 cache
$mState = 0;
$mUcs4 = 0;
$mBytes = 1;
}
} else {
/**
*((0xC0 & (*in) != 0x80) && (mState != 0))
* Incomplete multi-octet sequence.
*/
return false;
}
}
}
return true;
}
//--------------------------------------------------------------------
/**
* Tests whether a string complies as UTF-8. This will be much
* faster than utf8_is_valid but will pass five and six octet
* UTF-8 sequences, which are not supported by Unicode and
* so cannot be displayed correctly in a browser. In other words
* it is not as strict as utf8_is_valid but it's faster. If you use
* is to validate user input, you place yourself at the risk that
* attackers will be able to inject 5 and 6 byte sequences (which
* may or may not be a significant risk, depending on what you are
* are doing)
* @see utf8_is_valid
* @see http://www.php.net/manual/en/reference.pcre.pattern.modifiers.php#54805
* @param string UTF-8 string to check
* @return boolean TRUE if string is valid UTF-8
* @package utf8
*/
function utf8_compliant($str)
{
if (strlen($str) == 0) {
return true;
}
// If even just the first character can be matched, when the /u
// modifier is used, then it's valid UTF-8. If the UTF-8 is somehow
// invalid, nothing at all will match, even if the string contains
// some valid sequences
return (preg_match('/^.{1}/us', $str, $ar) == 1);
}