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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Lesson's numeric helper lib.
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*
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* Contains any helper functions for the numeric pagetyep
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*
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* @package mod_lesson
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* @copyright 2020 Peter Dias <peter@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace mod_lesson\local\numeric;
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/**
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* Lesson numeric page helper
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*
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* @copyright 2020 Peter Dias<peter@moodle.com>
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* @package core_lesson
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*/
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class helper {
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/**
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* Helper function to unformat a given numeric value from locale specific values with n:n signifying ranges to standards
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* with decimal point numbers/ranges
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*
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* @param string $value The value to be formatted
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* @return string|float|bool $formattedvalue unformatted value
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* String - If it is a range it will return a value e.g. 2:4
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* Float - if it's a properly formatted float
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* Null - If empty and could not be converted
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*/
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public static function lesson_unformat_numeric_value(string $value) {
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if (strpos($value, ':')) {
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list($min, $max) = explode(':', $value);
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$formattedvalue = unformat_float($min) . ':' . unformat_float($max);
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} else {
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$formattedvalue = unformat_float($value);
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}
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return $formattedvalue;
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}
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/**
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* Helper function to format a given value into locale specific values with n:n signifying ranges
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*
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* @param string|number $value The value to be formatted
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* @return string $formattedvalue Formatted value OR $value if not numeric
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*/
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public static function lesson_format_numeric_value($value): string {
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$formattedvalue = $value;
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if (strpos($value, ':')) {
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list($min, $max) = explode(':', $value);
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$formattedvalue = $min . ':' . $max;
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if (is_numeric($min) && is_numeric($max)) {
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$formattedvalue = format_float($min, strlen($min), true, true) . ':'
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. format_float($max, strlen($max), true, true);
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}
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} else {
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$formattedvalue = is_numeric($value) ? format_float($value, strlen($value), true, true) : $value;
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}
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return $formattedvalue;
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}
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}
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