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<?php |
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namespace __\Traits; |
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use __; |
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trait Strings |
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{ |
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/** |
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* Split a string by string. |
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* |
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* Based on explode, see http://php.net/manual/en/function.explode.php. |
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* |
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* __::split('a-b-c', '-', 2); |
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* >> ['a', 'b-c'] |
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* |
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* @param string $input The string to split. |
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* @param string $delimiter The boundary string. |
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* @param int $limit (optional) If limit is set and positive, the returned array |
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* will contain a maximum of limit elements with the last element containing the |
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* rest of string. |
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* If the limit parameter is negative, all components except the last -limit are returned. |
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* If the limit parameter is zero, then this is treated as 1. |
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* |
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* @return string |
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*/ |
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public static function split($input, $delimiter, $limit = PHP_INT_MAX) |
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{ |
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return explode($delimiter, $input, $limit); |
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} |
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/** |
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* Converts string to [camel case](https://en.wikipedia.org/wiki/CamelCase). |
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* |
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* __::camelCase('Foo Bar'); |
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* >> 'fooBar' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function camelCase($input) |
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{ |
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$words = __::words(\preg_replace("/['\x{2019}]/u", '', $input)); |
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return array_reduce( |
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$words, |
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function ($result, $word) use ($words) { |
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$isFirst = __::first($words) === $word; |
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$word = __::toLower($word); |
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return $result . (!$isFirst ? __::capitalize($word) : $word); |
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}, |
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'' |
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); |
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} |
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/** |
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* Converts the first character of string to upper case and the remaining to lower case. |
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* |
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* __::capitalize('FRED'); |
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* >> 'Fred' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function capitalize($input) |
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{ |
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return __::upperFirst(__::toLower($input)); |
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} |
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/** |
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* Converts string to |
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* [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). |
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* |
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* __::kebabCase('Foo Bar'); |
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* >> 'foo-bar' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function kebabCase($input) |
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{ |
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$words = __::words(\preg_replace("/['\x{2019}]/u", '', $input)); |
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1 |
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return array_reduce( |
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$words, |
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function ($result, $word) use ($words) { |
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$isFirst = __::first($words) === $word; |
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return $result . (!$isFirst ? '-' : '') . __::toLower($word); |
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}, |
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'' |
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); |
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} |
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/** |
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* Converts the first character of string to lower case, like lcfirst. |
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* |
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* __::lowerFirst('Fred'); |
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* >> 'fred' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function lowerFirst($input) |
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{ |
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return \lcfirst($input); |
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} |
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/** |
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* Converts string to |
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* [snake case](https://en.wikipedia.org/wiki/Snake_case). |
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* |
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* __::snakeCase('Foo Bar'); |
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* >> 'foo_bar' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function snakeCase($input) |
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{ |
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$words = __::words(\preg_replace("/['\x{2019}]/u", '', $input)); |
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1 |
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return array_reduce( |
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$words, |
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function ($result, $word) use ($words) { |
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$isFirst = __::first($words) === $word; |
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return $result . (!$isFirst ? '_' : '') . __::toLower($word); |
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}, |
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'' |
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); |
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} |
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/** |
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* Converts string to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). |
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* |
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* __::startCase('--foo-bar--'); |
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* >> 'Foo Bar' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function startCase($input) |
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{ |
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$words = __::words(\preg_replace("/['\x{2019}]/u", '', $input)); |
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1 |
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return array_reduce( |
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$words, |
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function ($result, $word) use ($words) { |
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$isFirst = __::first($words) === $word; |
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return $result . (!$isFirst ? ' ' : '') . __::upperFirst($word); |
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}, |
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'' |
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); |
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} |
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/** |
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* Converts string, as a whole, to lower case just like strtolower. |
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* |
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* __::toLower('fooBar'); |
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* >> 'foobar' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function toLower($input) |
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{ |
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return \strtolower($input); |
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} |
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/** |
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* Converts string, as a whole, to lower case just like strtoupper. |
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* |
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* __::toUpper('fooBar'); |
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* >> 'FOOBAR' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function toUpper($input) |
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{ |
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return \strtoupper($input); |
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} |
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/** |
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* Converts string, as space separated words, to upper case. |
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* |
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* __::upperCase('--foo-bar'); |
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* >> 'FOO BAR' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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1 |
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public static function upperCase($input) |
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{ |
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$words = __::words(\preg_replace("/['\x{2019}]/u", '', $input)); |
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return array_reduce( |
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$words, |
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function ($result, $word) use ($words) { |
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$isFirst = __::first($words) === $word; |
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return $result . (!$isFirst ? ' ' : '') . __::toUpper($word); |
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}, |
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'' |
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); |
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} |
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/** |
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* Converts the first character of string to upper case, like ucfirst. |
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* |
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* __::upperFirst('fred'); |
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* >> 'Fred' |
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* |
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* @param string $input |
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* |
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* @return string |
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* |
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*/ |
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public static function upperFirst($input) |
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{ |
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return \ucfirst($input); |
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} |
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/** |
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* Splits string into an array of its words. |
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* |
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* __::words('fred, barney, & pebbles'); |
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* >> ['fred', 'barney', 'pebbles'] |
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* |
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* __::words('fred, barney, & pebbles', '/[^, ]+/'); |
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* >> ['fred', 'barney', '&', 'pebbles'] |
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* |
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* @param string $input |
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* @param string $pattern : The pattern to match words. |
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* |
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* @return string |
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* |
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*/ |
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public static function words($input, $pattern = null) |
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{ |
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/** Used to compose unicode character classes. */ |
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7 |
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$rsAstralRange = '\x{e800}-\x{efff}'; |
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7 |
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$rsComboMarksRange = '\x{0300}-\x{036f}'; |
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$reComboHalfMarksRange = '\x{fe20}-\x{fe2f}'; |
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$rsComboSymbolsRange = '\x{20d0}-\x{20ff}'; |
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$rsComboRange = $rsComboMarksRange . $reComboHalfMarksRange . $rsComboSymbolsRange; |
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$rsDingbatRange = '\x{2700}-\x{27bf}'; |
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$rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff'; |
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$rsMathOpRange = '\\xac\\xb1\\xd7\\xf7'; |
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$rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf'; |
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$rsPunctuationRange = '\x{2000}-\x{206f}'; |
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$rsSpaceRange = ' \\t\\x0b\\f\\xa0\x{feff}\\n\\r\x{2028}\x{2029}\x{1680}\x{180e}\x{2000}\x{2001}\x{2002}\x{2003}\x{2004}\x{2005}\x{2006}\x{2007}\x{2008}\x{2009}\x{200a}\x{202f}\x{205f}\x{3000}'; |
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$rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde'; |
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$rsVarRange = '\x{fe0e}\x{fe0f}'; |
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7 |
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$rsBreakRange = $rsMathOpRange . $rsNonCharRange . $rsPunctuationRange . $rsSpaceRange; |
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/** Used to compose unicode capture groups. */ |
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7 |
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$rsApos = "['\x{2019}]"; |
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$rsBreak = '[' . $rsBreakRange . ']'; |
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$rsCombo = '[' . $rsComboRange . ']'; |
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7 |
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$rsDigits = '\\d+'; |
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7 |
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$rsDingbat = '[' . $rsDingbatRange . ']'; |
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7 |
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$rsLower = '[' . $rsLowerRange . ']'; |
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7 |
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$rsMisc = '[^' . $rsAstralRange . $rsBreakRange . $rsDigits . $rsDingbatRange . $rsLowerRange . $rsUpperRange . ']'; |
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7 |
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$rsFitz = '\\x{e83c}[\x{effb}-\x{efff}]'; |
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7 |
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$rsModifier = '(?:' . $rsCombo . '|' . $rsFitz . ')'; |
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7 |
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$rsNonAstral = '[^' . $rsAstralRange . ']'; |
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7 |
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$rsRegional = '(?:\x{e83c}[\x{ede6}-\x{edff}]){2}'; |
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7 |
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$rsSurrPair = '[\x{e800}-\x{ebff}][\x{ec00}-\x{efff}]'; |
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7 |
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$rsUpper = '[' . $rsUpperRange . ']'; |
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7 |
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$rsZWJ = '\x{200d}'; |
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/** Used to compose unicode regexes. */ |
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7 |
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$rsMiscLower = '(?:' . $rsLower . '|' . $rsMisc . ')'; |
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7 |
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$rsMiscUpper = '(?:' . $rsUpper . '|' . $rsMisc . ')'; |
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7 |
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$rsOptContrLower = '(?:' . $rsApos . '(?:d|ll|m|re|s|t|ve))?'; |
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7 |
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$rsOptContrUpper = '(?:' . $rsApos . '(?:D|LL|M|RE|S|T|VE))?'; |
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7 |
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$reOptMod = $rsModifier . '?'; |
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7 |
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$rsOptVar = '[' . $rsVarRange . ']?'; |
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7 |
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$rsOrdLower = '\\d*(?:(?:1st|2nd|3rd|(?![123])\\dth)\\b)'; |
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7 |
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$rsOrdUpper = '\\d*(?:(?:1ST|2ND|3RD|(?![123])\\dTH)\\b)'; |
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301
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7 |
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$asciiWords = '/[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/'; |
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302
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7 |
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$hasUnicodeWordRegex = '/[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/'; |
|
303
|
7 |
|
$rsOptJoin = '(?:' . $rsZWJ . '(?:' . join( |
|
304
|
7 |
|
'|', |
|
305
|
7 |
|
[$rsNonAstral, $rsRegional, $rsSurrPair] |
|
306
|
7 |
|
) . ')' . $rsOptVar . $reOptMod . ')*'; |
|
307
|
7 |
|
$rsSeq = $rsOptVar . $reOptMod . $rsOptJoin; |
|
308
|
7 |
|
$rsEmoji = '(?:' . join('|', [$rsDingbat, $rsRegional, $rsSurrPair]) . ')' . $rsSeq; |
|
309
|
|
|
|
|
310
|
|
|
/** |
|
311
|
|
|
* Splits a Unicode `string` into an array of its words. |
|
312
|
|
|
* |
|
313
|
|
|
* @private |
|
314
|
|
|
* |
|
315
|
|
|
* @param {string} The string to inspect. |
|
316
|
|
|
* @returns {Array} Returns the words of `string`. |
|
317
|
|
|
*/ |
|
318
|
7 |
|
$unicodeWords = '/' . join('|', [ |
|
319
|
7 |
|
$rsUpper . '?' . $rsLower . '+' . $rsOptContrLower . '(?=' . join( |
|
320
|
7 |
|
'|', |
|
321
|
7 |
|
[$rsBreak, $rsUpper, '$'] |
|
322
|
7 |
|
) . ')', |
|
323
|
7 |
|
$rsMiscUpper . '+' . $rsOptContrUpper . '(?=' . join( |
|
324
|
7 |
|
'|', |
|
325
|
7 |
|
[$rsBreak, $rsUpper . $rsMiscLower, '$'] |
|
326
|
7 |
|
) . ')', |
|
327
|
7 |
|
$rsUpper . '?' . $rsMiscLower . '+' . $rsOptContrLower, |
|
328
|
7 |
|
$rsUpper . '+' . $rsOptContrUpper, |
|
329
|
7 |
|
$rsOrdUpper, |
|
330
|
7 |
|
$rsOrdLower, |
|
331
|
7 |
|
$rsDigits, |
|
332
|
7 |
|
$rsEmoji, |
|
333
|
7 |
|
]) . '/u'; |
|
334
|
7 |
|
if ($pattern === null) { |
|
335
|
7 |
|
$hasUnicodeWord = \preg_match($hasUnicodeWordRegex, $input); |
|
336
|
7 |
|
$pattern = $hasUnicodeWord ? $unicodeWords : $asciiWords; |
|
337
|
|
|
} |
|
338
|
7 |
|
$r = \preg_match_all($pattern, $input, $matches, PREG_PATTERN_ORDER); |
|
339
|
7 |
|
if ($r === false) { |
|
|
|
|
|
|
340
|
|
|
throw new RuntimeException('Regex exception'); |
|
|
|
|
|
|
341
|
|
|
} |
|
342
|
|
|
|
|
343
|
7 |
|
return \count($matches[0]) > 0 ? $matches[0] : []; |
|
|
|
|
|
|
344
|
|
|
} |
|
345
|
|
|
|
|
346
|
|
|
/** |
|
347
|
|
|
* Converts string, as space separated words, to lower case. |
|
348
|
|
|
* |
|
349
|
|
|
* __::lowerCase('--Foo-Bar--'); |
|
350
|
|
|
* >> 'foo bar' |
|
351
|
|
|
* |
|
352
|
|
|
* @param string $input |
|
353
|
|
|
* |
|
354
|
|
|
* @return string |
|
355
|
|
|
* |
|
356
|
|
|
*/ |
|
357
|
1 |
|
public static function lowerCase($input) |
|
358
|
|
|
{ |
|
359
|
1 |
|
$words = __::words(\preg_replace("/['\x{2019}]/u", '', $input)); |
|
360
|
|
|
|
|
361
|
1 |
|
return array_reduce( |
|
362
|
1 |
|
$words, |
|
|
|
|
|
|
363
|
1 |
|
function ($result, $word) use ($words) { |
|
364
|
1 |
|
$isFirst = __::first($words) === $word; |
|
|
|
|
|
|
365
|
|
|
|
|
366
|
1 |
|
return $result . (!$isFirst ? ' ' : '') . __::toLower($word); |
|
367
|
1 |
|
}, |
|
368
|
1 |
|
'' |
|
369
|
|
|
); |
|
370
|
|
|
} |
|
371
|
|
|
} |
|
372
|
|
|
|
me-io /
php-lodash
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