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<?php
/**
* Text helper class file.
*
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2012 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\util;
/**
* Text helper
*
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* @author Qiang Xue <qiang.xue@gmail.com>
* @author Alex Makarov <sam@rmcreative.ru>
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* @since 2.0
*/
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class StringHelper
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{
/**
* Converts a word to its plural form.
* Note that this is for English only!
* For example, 'apple' will become 'apples', and 'child' will become 'children'.
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* @param string $name the word to be pluralized
* @return string the pluralized word
*/
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public static function pluralize($name)
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{
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$rules = array(
'/move$/i' => 'moves',
'/foot$/i' => 'feet',
'/child$/i' => 'children',
'/human$/i' => 'humans',
'/man$/i' => 'men',
'/tooth$/i' => 'teeth',
'/person$/i' => 'people',
'/([m|l])ouse$/i' => '\1ice',
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'/(x|ch|ss|sh|us|as|is|os)$/i' => '\1es',
'/([^aeiouy]|qu)y$/i' => '\1ies',
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'/(?:([^f])fe|([lr])f)$/i' => '\1\2ves',
'/(shea|lea|loa|thie)f$/i' => '\1ves',
'/([ti])um$/i' => '\1a',
'/(tomat|potat|ech|her|vet)o$/i' => '\1oes',
'/(bu)s$/i' => '\1ses',
'/(ax|test)is$/i' => '\1es',
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'/s$/' => 's',
);
foreach ($rules as $rule => $replacement) {
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if (preg_match($rule, $name)) {
return preg_replace($rule, $replacement, $name);
}
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}
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return $name . 's';
}
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/**
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* Converts a CamelCase name into space-separated words.
* For example, 'PostTag' will be converted to 'Post Tag'.
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* @param string $name the string to be converted
* @param boolean $ucwords whether to capitalize the first letter in each word
* @return string the resulting words
*/
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public static function camel2words($name, $ucwords = true)
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{
$label = trim(strtolower(str_replace(array('-', '_', '.'), ' ', preg_replace('/(?<![A-Z])[A-Z]/', ' \0', $name))));
return $ucwords ? ucwords($label) : $label;
}
/**
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* Converts a CamelCase name into an ID in lowercase.
* Words in the ID may be concatenated using the specified character (defaults to '-').
* For example, 'PostTag' will be converted to 'post-tag'.
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* @param string $name the string to be converted
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* @param string $separator the character used to concatenate the words in the ID
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* @return string the resulting ID
*/
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public static function camel2id($name, $separator = '-')
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{
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if ($separator === '_') {
return trim(strtolower(preg_replace('/(?<![A-Z])[A-Z]/', '_\0', $name)), '_');
} else {
return trim(strtolower(str_replace('_', $separator, preg_replace('/(?<![A-Z])[A-Z]/', $separator . '\0', $name))), $separator);
}
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}
}