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[Translate] add an intl MessageFormatter interpolator (phalcon#892)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| <?php | ||
|
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| namespace Phalcon\Translate\Interpolator; | ||
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| use Phalcon\Translate\InterpolatorInterface; | ||
| use Phalcon\Translate\Exception; | ||
| use MessageFormatter; | ||
| use IntlException; | ||
|
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| class Intl implements InterpolatorInterface | ||
| { | ||
| private $locale; | ||
|
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| public function __construct($locale) | ||
| { | ||
| $this->locale = $locale; | ||
| } | ||
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| /** | ||
| * Replaces placeholders by the values passed | ||
| * Use the MessageFormatter class, | ||
| * See http://php.net/manual/en/class.messageformatter.php | ||
| */ | ||
| public function replacePlaceholders($translation, $placeholders = null) | ||
| { | ||
| if (is_array($placeholders) && count($placeholders)) { | ||
| try { | ||
| // TODO (?) : keep an internal cache of the MessageFormatter objects (key = locale.translation) | ||
| $fmt = new MessageFormatter($this->locale, $translation); | ||
| } catch (IntlException $e) { | ||
| $fmt = null; | ||
| } finally { | ||
| // for php 7.x the original exception message is "Constructor failed" | ||
| // for php 5.6 the constructor returns null, see this wont fix bug https://bugs.php.net/bug.php?id=58631 | ||
| // make it a bit more understandable | ||
| if (is_null($fmt)) { | ||
| throw new Exception( | ||
| "Unable to instantiate a MessageFormatter. Check locale and string syntax.", | ||
| 0, | ||
| isset($e) ? $e : null | ||
| ); | ||
| } | ||
| } | ||
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| $translation = $fmt->format($placeholders); | ||
| if ($translation === false) { | ||
| throw new Exception($fmt->getErrorMessage(), $fmt->getErrorCode()); | ||
| } | ||
| } | ||
| return $translation; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| # Phalcon\Translate\Interpolator | ||
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| Usage examples of the interpolators available here: | ||
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| ## Intl | ||
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| It needs the extension [intl](php.net/manual/book.intl.php) to be installed in PHP, and it uses [MessageFormatter](http://php.net/manual/en/class.messageformatter.php) objects in an interpolator interface. | ||
| More about the syntax convention can be read on this [formating guide](https://www.sitepoint.com/localization-demystified-understanding-php-intl/) and on the [ICU documentation](http://userguide.icu-project.org/formatparse/messages). | ||
|
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| ```php | ||
| <?php | ||
| use Phalcon\Translate\Adapter\NativeArray; | ||
| use Phalcon\Translate\Interpolator\Intl; | ||
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| $translate = new NativeArray([ | ||
| 'interpolator' => new Intl('en_US'), // this interpolator must be locale aware | ||
| 'content' => ['hi-name' => 'Hello {name}, it\'s {time, number, integer} o\'clock'] | ||
| ]); | ||
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| $name = 'Henry'; | ||
| $translate->_('hi-name', ['name' => $name, 'time' => 8]); // Hello Henry, it's 8 o'clock | ||
| ``` | ||
|
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| ```php | ||
| <?php | ||
| use Phalcon\Translate\Adapter\NativeArray; | ||
| use Phalcon\Translate\Interpolator\Intl; | ||
|
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| $translate = new NativeArray([ | ||
| 'interpolator' => new Intl('fr_FR'), // this interpolator must be locale aware | ||
| 'content' => ['apples' => "{count, plural, =0{Je n'ai aucune pomme} =1{J'ai une pomme} other{J'ai # pommes}}."] | ||
| ]); | ||
|
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| // thousands separator is " " (blank space) for fr_FR | ||
| echo $translate->_('apples', ['count' => 1000]); // J'ai 1 000 pommes | ||
| ``` |
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