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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)); } }