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100 lines
3.5 KiB
PHP
100 lines
3.5 KiB
PHP
<?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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* Moodle implementation of LESS.
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*
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* @package core
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* @copyright 2014 Frédéric Massart
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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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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->libdir . '/lessphp/Autoloader.php');
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Less_Autoloader::register();
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/**
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* Moodle LESS compiler class.
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*
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* @package core
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* @copyright 2014 Frédéric Massart
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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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class core_lessc extends Less_Parser {
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/**
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* Add a rule to import a file.
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*
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* This is useful when you want to import the content of a LESS files but
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* you are not sure if it contains @imports or not. This method will
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* import the file using @import with a relative path from your
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* main file to compile. Less does not support absolute paths.
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*
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* @param string $filepath The path to the LESS file to import.
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* @param string $relativeto The path from which the relative path should be built.
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* Typically this would be the path to a file passed
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* to {@link self::parseFile()}.
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* @return void
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*/
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public function import_file($filepath, $relativeto) {
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global $CFG;
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if (!is_readable($filepath) || !is_readable($relativeto)) {
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throw new coding_exception('Could not read the files');
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}
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$filepath = realpath($filepath);
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$relativeto = realpath($relativeto);
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if (strtolower(substr($filepath, -5)) != '.less') {
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throw new coding_exception('Imports only work with LESS files.');
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} else if (strpos(realpath($filepath), $CFG->dirroot) !== 0 ||
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strpos(realpath($relativeto), $CFG->dirroot) !== 0) {
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throw new coding_exception('Files must be in CFG->dirroot.');
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}
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// Simplify the file path the start of dirroot.
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$filepath = trim(substr($filepath, strlen($CFG->dirroot)), '/');
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$relativeto = trim(substr($relativeto, strlen($CFG->dirroot)), '/');
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// Split the file path and remove the file name.
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$dirs = explode('/', $relativeto);
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array_pop($dirs);
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// Generate the relative path.
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$relativepath = str_repeat('../', count($dirs)) . $filepath;
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$this->parse('@import "' . $relativepath . '";');
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}
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/**
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* Parse the content of a file.
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*
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* The purpose of this method is to provide a way to import the
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* content of a file without messing with the import directories
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* as {@link self::parseFile()} would do. But of course you should
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* have manually set your import directories previously.
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*
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* @see self::SetImportDirs()
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* @param string $filepath The path to the file.
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* @return void
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*/
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public function parse_file_content($filepath) {
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$this->parse(file_get_contents($filepath));
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}
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}
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