class.phpwsdlformatter.php

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<?php
if(basename($_SERVER['SCRIPT_FILENAME'])==basename(__FILE__))
    exit;
class PhpWsdlFormatter
{
    protected $_parser = null;
    
    protected $_input = null;
    
    protected $_output = null;
    
    protected $_offset = 0;
    
    protected $_depth = 0;
    
    protected $_empty = false;
    
    protected $_buffer = "";
    
    protected $_options = array(
        "bufferSize" => 4096,
        "paddingString" => " ",
        "paddingMultiplier" => 4,
        "formatCData" => true,
        "multipleLineCData" => true,
        "wordwrapCData" => 75,
        "inputEOL" => "\n",
        "outputEOL" => "\n"
    );
    
    public function __construct($input, $output, Array $options = array())
    {
        $this->_input = $input;
        $this->_output = $output;
        $this->_options = array_merge($this->_options, $options);
        
        $this->_parser = xml_parser_create();
        
        xml_set_object($this->_parser, $this);
        
        xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false);
        xml_parser_set_option($this->_parser, XML_OPTION_SKIP_WHITE, 0);
        
        xml_set_element_handler($this->_parser, "_cbElementStart", "_cbElementEnd");
        xml_set_character_data_handler($this->_parser, "_cbCharacterData");
    }
    
    protected function _getPaddingStr()
    {
        return str_repeat($this->_options["paddingString"], $this->_depth * $this->_options["paddingMultiplier"]);
    }
    
    protected function _cbElementStart($parser, $name, Array $attributes)
    {
        $idx = xml_get_current_byte_index($this->_parser);
        
        $this->_empty = $this->_buffer[$idx - $this->_offset] == '/';
        
        $attrs = "";
        foreach ($attributes as $key => $val) {
            $attrs .= " " . $key . "=\"" . $val . "\"";
        }
        
        fwrite($this->_output, $this->_getPaddingStr() . "<" . $name . $attrs . ($this->_empty ? ' />' : '>') . "\n");
        
        if (!$this->_empty) ++$this->_depth;
    }
    
    protected function _cbElementEnd($parser, $name)
    {
        if (!$this->_empty) {
            --$this->_depth;
            
            fwrite($this->_output, $this->_getPaddingStr() . "</" . $name . ">" . "\n");
        } else {
            $this->_empty = false;
        }
    }
    
    protected function _cbCharacterData($parser, $data)
    {
        if (!$this->_options["formatCData"]) {
            return;
        }
        
        $data = trim($data);
            
        if (strlen($data)) {
            $pad = $this->_getPaddingStr();
            
            if ($this->_options["multipleLineCData"]) {
                
                // remove all tabs
                $data = str_replace("\t", "", $data);
                
                // append each line with a padding string
                $data = implode($this->_options["inputEOL"] . $pad, explode($this->_options["inputEOL"], $data));
            }
            
            if ($this->_options["wordwrapCData"]) {
                $data = wordwrap($data, $this->_options["wordwrapCData"], $this->_options["outputEOL"] . $pad, false);
            }
            
            fwrite($this->_output, $pad . $data . "\n");
        }
    }
    
    public function format()
    {
        while ($this->_buffer = fread($this->_input, $this->_options["bufferSize"])) {
            if (!xml_parse($this->_parser, $this->_buffer, feof($this->_input))) {
                throw new Exception(sprintf("XML error: %s at line %d",
                    xml_error_string(xml_get_error_code($this->_parser)),
                    xml_get_current_line_number($this->_parser)));
                    return;
            }
            
            $this->_offset += strlen($this->_buffer);
        }
        
        xml_parser_free($this->_parser);
    }
}