xoxo-sample-code-php

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XOXO Sample Code - PHP

this is sub-page of xoxo-sample-code

xoxolib.php

<nowiki>
<?
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 "
";
       }
   $howmany = sizeof($xoxoVals);
   
#echo "
";
    $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 "
";
  while (count($structs) == 1 && getKind($structs) == 'list')
       $structs = $structs[0];
   return $structs;

} ?> </nowiki></pre>

xoxotest.php

<nowiki>
<?
include("xoxolib.php");
function assertEqual($testname,$str1,$str2)
{
if ($str1 == $str2)
    echo "<h3>√ $testname </h3>";
else 
    {
    echo "<h3><big>☹</big> $testname failed</h3>";
    echo "<dl><dt>expected</dt>\n<dd>$str1</dd>\n<dt>returned</dt>\n<dd>$str2</dd>\n<dl>";
    
    }
}

function assertArrayEqual($testname,$expected,$returned)
{
if ($expected == $returned)
    echo "<h3>√ $testname </h3>";
else 
    {
    echo "<h3><big>☹</big> $testname failed</h3>";
    echo "<dl><dt>expected</dt>\n<dd><pre>";
    var_dump($expected);
    echo "
</dd>\n
returned</dt>\n
";
   var_dump($returned);
echo "
</dd>\n
";
   }

}

function failIfEqual($testname,$str1,$str2) { if ($str1 != $str2)

echo "

√ $testname

";

else

   {
echo "

$testname failed

";
   echo "
both were</dt>
$str1</dd>
"; }

}


$l = array('1','2','3'); $html = toXOXO($l);

assertEqual('make xoxo from list','
  1. 1
  2. 2
  3. 3
',$html);

$s = 'test'; $html = toXOXO($s);

assertEqual("make xoxo from a string",'
  1. test
',$html);

$htmlwrap = toXOXO($s,TRUE); failIfEqual("make sure wrapped and unwrapped differ",html,htmlwrap);

assertEqual("make wrapped xoxo from a string",'<!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" /></head><body>
  1. test
</body></html>',$htmlwrap);

$csswrap = toXOXO($s,TRUE,"reaptest.css");

assertEqual("make wrapped xoxo with css link from a string",'<!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" /><style type="text/css" >@import "reaptest.css";</style></head><body>
  1. test
</body></html>',$csswrap);

$l2 = array('1',array('2','3')); $html = toXOXO($l2);

assertEqual('make xoxo from nested list','
  1. 1
    1. 2
    2. 3
',$html);

$d = array(test=>'1'); $html = toXOXO($d);

assertEqual('make xoxo from 1-element dictionary','
  1. test</dt>
    1</dd>
',$html);

$d = array(test=>'1',name=>Kevin); $html = toXOXO($d);

assertEqual('make xoxo from dictionary','
  1. test</dt>
    1</dd>
    name</dt>
    Kevin</dd>
',$html);

$d = array('url'=>'http://example.com/more.xoxo','title'=>'sample url','type'=>"text/xml",'rel'=>'help','text'=>'an example'); $html = toXOXO($d);

assertEqual('make xoxo from dictionary with url','
  1. <a href="http://example.com/more.xoxo" title="sample url" rel="help" type="text/xml" >an example</a>
',$html);

$d = array('url'=>'http://example.com/more.xoxo','title'=>'sample url','type'=>"text/xml",'rel'=>'help','text'=>'an example','thing'=>'and another thing...'); $html = toXOXO($d);

assertEqual('make xoxo from dictionary with url and thing','
  1. <a href="http://example.com/more.xoxo" title="sample url" rel="help" type="text/xml" >an example</a>
    thing</dt>
    and another thing...</dd>
',$html);

$d = array('url'=>'http://example.com/more.xoxo','title'=>'sample url','type'=>"text/xml",'rel'=>'help','text'=>'an example','list'=>array('and', 'another','thing...')); $html = toXOXO($d);

assertEqual('make xoxo from dictionary with url and list','
  1. <a href="http://example.com/more.xoxo" title="sample url" rel="help" type="text/xml" >an example</a>
    list</dt>
    1. and
    2. another
    3. thing...
    </dd>
',$html);

$l = array('3',array('a'=>'2')); $html = toXOXO($l);

assertEqual('make xoxo from dict in list','
  1. 3
  2. a</dt>
    2</dd>
',$html);

$l = array('3','2','1'); $html = toXOXO($l); $newdl= fromXOXO($html); assertArrayEqual('list to xoxo and back',$l,$newdl); $l = array('1',array('a','b')); $html = toXOXO($l); $newdl= fromXOXO($html); assertArrayEqual('list of lists to xoxo and back',$l,$newdl);

$l= array('3',array('a','2'),array('b',array('1',array('c','4')))); $html = toXOXO($l); $newdl= fromXOXO($html); assertArrayEqual('list of list of lists to xoxo and back',$l,$newdl); $d = array(test=>'1',name=>Kevin); $html = toXOXO($d); $newd= fromXOXO($html); assertArrayEqual('dictionary to xoxo and back',$d,$newd);

$l = array('3',array('a'=>'2'),array('b'=>'1','c'=>'4')); $html = toXOXO($l); $newdl= fromXOXO($html); assertArrayEqual('list of dicts to xoxo and back',$l,$newdl); assertEqual('list of dicts to xoxo and back',$html,toXOXO($newdl)); $l = array('one'=>array('a'=>'2','b'=>'3'),'two'=>array('c'=>'4')); $html = toXOXO($l); $newdl= fromXOXO($html); assertArrayEqual('dict of dicts to xoxo and back',$l,$newdl); assertEqual('dict of dicts to xoxo and back',$html,toXOXO($newdl)); $l = array('one'=>array('a'=>'2','b'=>'3'),'url'=>'http://example.com'); $html = toXOXO($l); $newdl= fromXOXO($html); assertArrayEqual('dict of dicts with url to xoxo and back',$l,$newdl); assertEqual('dict of dicts with url to xoxo and back',$html,toXOXO($newdl)); $d = array('test'=> array('1','2'), 'name'=> 'Kevin','nestlist'=> array('a',array('b','c')), 'nestdict'=>array('e'=>'6','f'=>'7')); $html = toXOXO($d); $newd= fromXOXO($html); assertArrayEqual('dictionary of lists to xoxo and back',$d,$newd);

$d=fromXOXO('
    bad
  1. worse
    good</dt>
    buy</dd> now
');

assertArrayEqual('make sure text outside <li> etc is ignored',array(good=>buy),$d);

$l=fromXOXO('
  1. bad
    good</dt>
    buy</dd>
    worse
  2. bag
    1. OK
    fish
');

assertArrayEqual('make sure text within <li> but outside a subcontainer is ignored',array(array(good=>buy),array('OK')),$l);

$xoxoSample= "
  1. text</dt>
    item 1</dd>
    description</dt>
    This item represents the main point we're trying to make.</dd>
    url</dt>
    http://example.com/more.xoxo</dd>
    title</dt>
    title of item 1</dd>
    type</dt>
    text/xml</dd>
    rel</dt>
    help</dd>
";

$d = fromXOXO($xoxoSample); $d2=array('text'=>'item 1',

   'description'=>" This item represents the main point we're trying to make.",
   'url'=>'http://example.com/more.xoxo',
   'title'=>'title of item 1',
   'type'=>'text/xml',
   'rel'=>'help');

assertArrayEqual('unmung some xoxo with spaces in and check result is right',$d2,$d);

$xoxoSample= "
  1. text</dt>
    item 1</dd>
    url</dt>
    http://example.com/more.xoxo</dd>
    title</dt>
    title of item 1</dd>
    type</dt>
    text/xml</dd>
    rel</dt>
    help</dd>
";

$d = fromXOXO($xoxoSample);

$smartxoxoSample= "
  1. <a href=\"http://example.com/more.xoxo\" title=\"title of item 1\" type=\"text/xml\" rel=\"help\">item 1</a>
";

$d2 = fromXOXO($smartxoxoSample); assertArrayEqual('unmung some xoxo with <a href= rel= etc in and check result is right',$d,$d2);

$xoxoSample= "
  1. text</dt>
    item 1</dd>
    description</dt>
    This item represents the main point we're trying to make.</dd>
    url</dt>
    http://example.com/more.xoxo</dd>
    title</dt>
    title of item 1</dd>
    type</dt>
    text/xml</dd>
    rel</dt>
    help</dd>
";

$d = fromXOXO($xoxoSample);

$smartxoxoSample= "
  1. <a href=\"http://example.com/more.xoxo\" title=\"title of item 1\" type=\"text/xml\" rel=\"help\">item 1</a>
    description</dt>
    This item represents the main point we're trying to make.</dd>
";

$d2 = fromXOXO($smartxoxoSample); assertArrayEqual('unmung some xoxo with <a href= rel= etc in and check result is right',$d,$d2);

$d=array('url'=>'http://example.com/more.xoxo','title'=>'sample url','type'=>"text/xml",'rel'=>'help','text'=>'an example'); $html=toXOXO($d); assertArrayEqual('round trip url to href to url',$d,fromXOXO($html));

$d=array('url'=>'http://example.com/more.xoxo','title'=>'sample url','type'=>"text/xml",'rel'=>'help'); $html=toXOXO($d); assertArrayEqual('round trip url to href to url (no text)',$d,fromXOXO($html));

$d=array('url'=>'http://example.com/more.xoxo'); $html=toXOXO($d); assertArrayEqual('round trip url to href to url (just url)',$d,fromXOXO($html)); $kmattn=<<<ENDATTN

  1. <a href="http://www.boingboing.net/" title="Boing Boing Blog" >Boing Boing Blog</a>
    alturls</dt>
    1. <a href="http://boingboing.net/rss.xml" >xmlurl</a>
    </dd>
    description</dt>
    Boing Boing Blog</dd>
  2. <a href="http://www.financialcryptography.com/" title="Financial Cryptography" >Financial Cryptography</a>
    alturls</dt>
    1. <a href="http://www.financialcryptography.com/mt/index.rdf" >xmlurl</a>
    </dd>
    description</dt>
    Financial Cryptography</dd>
  3. <a href="http://hublog.hubmed.org/" title="HubLog" >HubLog</a>
    alturls</dt>
    1. <a href="http://hublog.hubmed.org/index.xml" >xmlurl</a>
    2. <a href="http://hublog.hubmed.org/foaf.rdf" >foafurl</a>
    </dd>
    description</dt>
    HubLog</dd>

ENDATTN; $d=fromXOXO($kmattn); $newattn = toXOXO($d); $d2=fromXOXO($newattn); assertArrayEqual('attention double round-trip',$d,$d2); assertEqual('attention triple round-trip',$newattn,toXOXO($d2)); assertEqual('attention one round-trip',$kmattn,$newattn); $d=array(array(url=>"http://www.boingboing.net/",title=>"Boing Boing Blog","alturls"=>array(array("url"=>"http://boingboing.net/rss.xml","text"=> "xmlurl")),"description"=>"Boing Boing Blog"),array(url=>"http://www.financialcryptography.com/",title=>"Financial Cryptography","alturls"=>array(array("url"=>"http://www.financialcryptography.com/mt/index.rdf","text"=> "xmlurl")),"description"=>"Financial Cryptography")); $attn=<<<ENDATTN

  1. <a href="http://www.boingboing.net/" title="Boing Boing Blog" >Boing Boing Blog</a>
    alturls</dt>
    1. <a href="http://boingboing.net/rss.xml" >xmlurl</a>
    </dd>
    description</dt>
    Boing Boing Blog</dd>
  2. <a href="http://www.financialcryptography.com/" title="Financial Cryptography" >Financial Cryptography</a>
    alturls</dt>
    1. <a href="http://www.financialcryptography.com/mt/index.rdf" >xmlurl</a>
    </dd>
    description</dt>
    Financial Cryptography</dd>

ENDATTN; assertEqual('attention encode',$attn,toXOXO($d));


?> </nowiki></pre></code>

xoxo-sample-code-php was last modified: Wednesday, January 16th, 2008

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