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xoxolib.php
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xoxolib.php
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<?
function getKind($struct)
{
if (!is_array($struct)) return 'string';
if (!isset($struct[0]))
$result = 'dictionary';
else if (array_keys($struct)==range(0,count($struct)-1))
$result = 'list';
else
$result = 'dictionary';
return $result;
}
function makeXOXO($struct,$className='')
{
$s='';
$kind = getKind($struct);
#echo "$kind:\n";
#var_dump($struct);
if ($kind=='list')
{
if ($className)
$s .= "<ol class=\"$className\">";
else
$s .= "<ol>";
foreach ($struct as $key => $value)
$s .= "<li>" . makeXOXO($value) ."</li>";
$s .="</ol>";
}
else if ($kind=='dictionary')
{
if (isset($struct['url']))
{
$s .='<a href="' .$struct['url']. '" ';
if (isset($struct['text']))
$text= $struct['text'];
else if (isset($struct['title']))
$text= $struct['title'];
else
$text= $struct['url'];
foreach (array('title','rel','type') as $attr)
if (isset($struct[$attr]))
{
$s .= "$attr=\"" . $struct[$attr] .'" ';
unset($struct[$attr]);
}
$s .= ">" . makeXOXO($text) ."</a>";
unset($struct['url'],$struct['text']);
}
if (count($struct))
{
$s .="<dl>";
foreach ($struct as $key => $value)
$s .= "<dt>$key</dt><dd>". makeXOXO($value) . "</dd>";
$s .= "</dl>";
}
}
else
$s .= "$struct";
#echo "returned $s\n";
return $s;
}
function toXOXO($struct,$addHTMLWrapper=FALSE,$cssUrl='')
{
if (getKind($struct) != 'list')
$struct = array($struct);
$xoxo = makeXOXO($struct,'xoxo');
if ($addHTMLWrapper)
{
$s= '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head profile=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
if ($cssUrl) $s .="<style type=\"text/css\" >@import \"$cssUrl\";</style>";
$s .="</head><body>$xoxo</body></html>";
return $s;
}
return $xoxo;
}
function pushStruct($struct,&$structstack,&$xostack,$structType)
{
if (is_array($struct) && $structType=='dict' && count($structstack) && is_array(end($structstack)) && isset($structstack[count($structstack)-1]['url']) && end($structstack) != end($xostack))
$xostack[] = &$structstack[count($structstack)-1]; # put back the <a>-made one for extra def's
else
{
$structstack[]=$struct;
$xostack[]=&$structstack[count($structstack)-1];
}
}
function fromXOXO($html)
{
$structs=array();
$xostack=array();
$textstack=array('');
$dumpStacks=0;
$p = xml_parser_create();
xml_parse_into_struct($p, $html, $xoxoVals, $xoxoIndex);
xml_parser_free($p);
if($dumpStacks)
{
echo "<pre>";
var_dump($xoxoVals);
var_dump($xoxoIndex);
echo "</pre>";
}
$howmany = sizeof($xoxoVals);
#echo "<pre>";
$x = $xoxoIndex['OL'];
for ($x=0;$x<$howmany;++$x)
{
if ($xoxoVals[$x]['tag'] == 'OL' || $xoxoVals[$x]['tag'] == 'DL'|| $xoxoVals[$x]['tag'] == 'UL')
{
if ($xoxoVals[$x]['tag'] == 'DL')
$structType = 'dict';
else
$structType = 'list';
if ($xoxoVals[$x]['type'] == 'open')
pushStruct(array(),$structs,$xostack,$structType);
if ($xoxoVals[$x]['type'] == 'close')
array_pop($xostack);
if($dumpStacks)
{
echo $xoxoVals[$x]['type'] .' ' . $xoxoVals[$x]['tag'] .":\n";
var_dump($structs);
var_dump($xostack);
}
}
if ($xoxoVals[$x]['tag'] == 'LI')
{
if ($xoxoVals[$x]['type'] == 'complete')
array_push($xostack[count($xostack)-1],$xoxoVals[$x]['value']);
if ($xoxoVals[$x]['type'] == 'close')
{
array_push($xostack[count($xostack)-1],array_pop($structs));
}
if($dumpStacks)
{
echo $xoxoVals[$x]['type'] .' ' . $xoxoVals[$x]['tag'] .":\n";
var_dump($structs);
var_dump($xostack);
}
}
if ($xoxoVals[$x]['tag'] == 'DT')
{
if ($xoxoVals[$x]['type'] == 'complete')
array_push($textstack,$xoxoVals[$x]['value']);
}
if ($xoxoVals[$x]['tag'] == 'DD')
{
if ($xoxoVals[$x]['type'] == 'complete')
{
$key = array_pop($textstack);
$xostack[count($xostack)-1][$key] = $xoxoVals[$x]['value'];
}
if ($xoxoVals[$x]['type'] == 'close')
{
$key = array_pop($textstack);
$xostack[count($xostack)-1][$key] =array_pop($structs);
}
if($dumpStacks)
{
echo $xoxoVals[$x]['type'] .' ' . $xoxoVals[$x]['tag'] .":\n";
var_dump($structs);
var_dump($xostack);
}
}
if ($xoxoVals[$x]['tag'] == 'A')
{
if ($xoxoVals[$x]['type'] == 'complete')
{
$attrs = $xoxoVals[$x]['attributes'];
$dict=array();
foreach ($attrs as $key=> $value)
{
if ($key=='HREF')
$dict['url'] = $value;
else
$dict[strtolower($key)] = $value;
}
$val = $xoxoVals[$x]['value'];
if (isset($val) && ($val != $dict['title']) && ($val != $dict['url']))
$dict['text'] = $val;
pushStruct($dict,$structs,$xostack,'dict');
array_pop($xostack);
if($dumpStacks)
{
echo $xoxoVals[$x]['type'] .' ' . $xoxoVals[$x]['tag'] .":\n";
var_dump($structs);
var_dump($xostack);
}
}
}
}
#echo "</pre>";
while (count($structs) == 1 && getKind($structs) == 'list')
$structs = $structs[0];
return $structs;
}
?>