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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                declare(strict_types=1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * citeproc-php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link        http://github.com/seboettg/citeproc-php for the source repository  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright   Copyright (c) 2016 Sebastian Böttger.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license     https://opensource.org/licenses/MIT  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Seboettg\CiteProc;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Seboettg\CiteProc\Exception\CiteProcException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class StyleSheet  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Helper class for loading CSL styles and CSL locales  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package Seboettg\CiteProc  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Sebastian Böttger <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class StyleSheet  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Loads xml formatted CSL stylesheet of a given stylesheet name, e.g. "american-physiological-society" for  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * apa style.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * See in styles folder (which is included as git submodule) for all available style sheets  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $styleName e.g. "american-physiological-society" for apa  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws CiteProcException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function loadStyleSheet(string $styleName): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $stylesPath = self::vendorPath() . "/citation-style-language/styles";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return self::readFileContentsOrThrowException("$stylesPath/$styleName.csl"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Loads xml formatted locales of given language key  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $langKey e.g. "en-US", or "de-CH"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws CiteProcException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function loadLocales(string $langKey): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $localesPath = self::vendorPath()."/citation-style-language/locales";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $localeFile = "$localesPath/locales-${langKey}.xml"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (file_exists($localeFile)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return self::readFileContentsOrThrowException($localeFile);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $metadata = self::loadLocalesMetadata();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!empty($metadata->{'primary-dialects'}->{$langKey})) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return self::readFileContentsOrThrowException(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    sprintf("%s/locales-%s.xml", $localesPath, $metadata->{'primary-dialects'}->{$langKey}) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        throw new CiteProcException("No Locale file found for $langKey"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws CiteProcException  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private static function readFileContentsOrThrowException($path): string  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $fileContent = file_get_contents($path);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (false === $fileContent) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new CiteProcException("Couldn't read $path"); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $fileContent;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return mixed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws CiteProcException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function loadLocalesMetadata()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $localesMetadataPath = self::vendorPath() . "/citation-style-language/locales/locales.json";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return json_decode(self::readFileContentsOrThrowException($localesMetadataPath));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws CiteProcException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static function vendorPath()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        include_once realpath(__DIR__ . '/../') . '/vendorPath.php';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!($vendorPath = vendorPath())) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new CiteProcException('vendor path not found. Use composer to initialize your project'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $vendorPath;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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