hoa/ustring

The Hoa\Ustring library.

Tuesday, January 23, 2018
by Hoa
Repository
16 Watchers
123 Stars
809,955 Installations

PHP
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0 Suggesters
12 Forks
5 Open issues
15 Versions
6 % Grown

The README.md

Hoa , _(*1)

, _(*2)

Hoa is a modular, extensible and structured set of PHP libraries.
Moreover, Hoa aims at being a bridge between industrial and research worlds. , _(*3)

Hoa\Ustring

, _(*4)

This library allows to manipulate UTF-8 strings easily with some search algorithms., _(*5)

Learn more., _(*6)

Installation

With Composer, to include this library into your dependencies, you need to require hoa/ustring:, _(*7)

$ composer require hoa/ustring '~4.0'

For more installation procedures, please read the Source page., _(*8)

Testing

Before running the test suites, the development dependencies must be installed:, _(*9)

$ composer install

Then, to run all the test suites:, _(*10)

$ vendor/bin/hoa test:run

For more information, please read the contributor guide., _(*11)

Quick usage

We propose a quick overview of two usages: manipulate UTF-8 strings and one search algorithm., _(*12)

Natural UTF-8 strings manipulation

The Hoa\Ustring\Ustring class allows to manipulate easily UTF-8 strings in a very natural way. This class implements the \ArrayAccess, \Countable and \IteratorAggregate interfaces. We will use the following examples:, _(*13)

$french   = new Hoa\Ustring\Ustring('Je t\'aime');
$arabic   = new Hoa\Ustring\Ustring('أحبك');
$japanese = new Hoa\Ustring\Ustring('私はあなたを愛して');

To get the first character, we will do:, _(*14)

var_dump(
    $french[0],  // string(1) "J"
    $arabic[0],  // string(2) "أ"
    $japanese[0] // string(3) "私"
);

And to get the last character, we will do [-1]. It supports unbounded (and modulo) indexes., _(*15)

We note that it cares about text direction. Look at $arabic[0], it returns أ and not ك. To get the direction, we can use the Hoa\Ustring\Ustring::getDirection method (which call the Hoa\Ustring\Ustring::getCharDirection static method), it returns either Hoa\Ustring\Ustring::LTR (0) or Hoa\Ustring\Ustring::RTL (1):, _(*16)

var_dump(
    $french->getDirection(),  // int(0)
    $arabic->getDirection(),  // int(1)
    $japanese->getDirection() // int(0)
);

Text direction is also important for the append, prepend, pad… methods on Hoa\Ustring\Ustring for example., _(*17)

To get the length of a string, we can use the count function:, _(*18)

var_dump(
    count($french),  // int(9)
    count($arabic),  // int(4)
    count($japanese) // int(9)
);

We are also able to iterate over the string:, _(*19)

foreach ($arabic as $letter) {
    var_dump($letter);
}

/**
 * Will output:
 *     string(2) "أ"
 *     string(2) "ح"
 *     string(2) "ب"
 *     string(2) "ك"
 */

Again, text direction is useful here. For $arabic, the iteration is done from right to left., _(*20)

Some static methods are helpful, such as fromCode, toCode or isUtf8 on Hoa\Ustring\Ustring:, _(*21)

var_dump(
    Hoa\Ustring\Ustring::fromCode(0x1a9), // string(2) "Ʃ"
    Hoa\Ustring\Ustring::toCode('Ʃ'),     // int(425) == 0x1a9
    Hoa\Ustring\Ustring::isUtf8('Ʃ')      // bool(true)
);

We can also transform any text into ASCII:, _(*22)

$emoji = new Hoa\Ustring\Ustring('I ❤ Unicode');
$maths = new Hoa\Ustring\Ustring('∀ i ∈ ℕ');

echo
    $emoji->toAscii(), "\n",
    $maths->toAscii(), "\n";

/**
 * Will output:
 *     I (heavy black heart) Unicode
 *     (for all) i (element of) N
 */

Search algorithm

The Hoa\Ustring\Search implements search algorithms on strings., _(*23)

For example, the Hoa\Ustring\Search::approximated method make a search by approximated patterns (with k differences based upon the principle diagonal monotony). If we search the word GATAA in CAGATAAGAGAA with 1 difference, we will do:, _(*24)

$search = Hoa\Ustring\Search::approximated(
    $haystack = 'CAGATAAGAGAA',
    $needle   = 'GATAA',
    $k        = 1
);
$solutions = array();

foreach ($search as $pos) {
    $solutions[] = substr($haystack, $pos['i'], $pos['l']);
}

We will found AGATA, GATAA, ATAAG and GAGAA., _(*25)

The result is not very handy but the algorithm is much optimized and found many applications., _(*26)

Documentation

The hack book of Hoa\Ustring contains detailed information about how to use this library and how it works., _(*27)

To generate the documentation locally, execute the following commands:, _(*28)

$ composer require --dev hoa/devtools
$ vendor/bin/hoa devtools:documentation --open

More documentation can be found on the project's website: hoa-project.net., _(*29)

Getting help

There are mainly two ways to get help:, _(*30)

On the #hoaproject IRC channel,
On the forum at users.hoa-project.net.

Contribution

Do you want to contribute? Thanks! A detailed contributor guide explains everything you need to know., _(*31)

License

Hoa is under the New BSD License (BSD-3-Clause). Please, see LICENSE for details., _(*32)

The Versions

23/01 2018

dev-master

9999999-dev https://hoa-project.net/

The Hoa\Ustring library.

library ustring

The Hoa\Ustring library.

hoa/ustring

The README.md

Hoa\Ustring

Installation

Testing

Quick usage

Natural UTF-8 strings manipulation

Search algorithm

Documentation

Getting help

Contribution

License

The Versions

dev-master

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

4.17.01.16

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

4.16.01.11

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

3.15.11.09

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

3.15.08.03

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

3.15.07.28

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

3.15.05.29

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

2.15.03.25

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

2.15.02.19

The Requires

The Development Requires

by Ivan Enderlin

by Hoa community

2.14.12.24

The Requires

by Ivan Enderlin

by Hoa community

2.14.12.10

The Requires

by Ivan Enderlin

by Hoa community

2.14.11.09

The Requires

by Ivan Enderlin

by Hoa community

2.14.09.23

The Requires

by Ivan Enderlin

by Hoa community

2.14.09.16

The Requires

by Ivan Enderlin

by Hoa community