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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Gettext\Utils;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Strings  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Decodes a T_CONSTANT_ENCAPSED_STRING string.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function fromPhp($value)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($value[0] === "'" || strpos($value, '$') === false) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (strpos($value, '\\') === false) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return substr($value, 1, -1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return eval("return $value;"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $value = substr($value, 1, -1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        while (($p = strpos($value, '\\')) !== false) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!isset($value[$p + 1])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($p > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $result .= substr($value, 0, $p);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $value = substr($value, $p + 1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $p = strpos($value, '$');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($p === false) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $result .= eval('return "\\'.$value.'";'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $value = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($p === 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $result .= '$';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $value = substr($value, 1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $result .= eval('return "\\'.substr($value, 0, $p).'";'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $value = substr($value, $p);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $result.$value;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Convert a string to its PO representation.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public static function toPo($value)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return '"'.addcslashes($value, "\x00..\x1F\"\\").'"';  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Convert a string from its PO representation.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function fromPo($value)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!$value) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($value[0] === '"') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $value = substr($value, 1, -1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return str_replace(array('\\n', '\\r', '\\"', '\\t', '\\\\'), array("\n", "\r", '"', "\t", '\\'), $value); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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