texy = $texy;
$texy->addHandler('postProcess', array($this, 'postProcess'));
}
/**
* Converts ... ... .
* into ... ...
*/
public function postProcess($texy, & $s)
{
$this->space = $this->baseIndent;
$this->tagStack = array();
$this->tagUsed = array();
$this->xml = $texy->getOutputMode() & Texy::XML;
// special "base content"
$this->baseDTD = $texy->dtd['div'][1] + $texy->dtd['html'][1] /*+ $texy->dtd['head'][1]*/ + $texy->dtd['body'][1] + array('html'=>1);
// wellform and reformat
$s = preg_replace_callback(
'#(.*)<(?:(!--.*--)|(/?)([a-z][a-z0-9._:-]*)(|[ \n].*)\s*(/?))>()#Uis',
array($this, 'cb'),
$s . ''
);
// empty out stack
foreach ($this->tagStack as $item) $s .= $item['close'];
// right trim
$s = preg_replace("#[\t ]+(\n|\r|$)#", '$1', $s); // right trim
// join double \r to single \n
$s = str_replace("\r\r", "\n", $s);
$s = strtr($s, "\r", "\n");
// greedy chars
$s = preg_replace("#\\x07 *#", '', $s);
// back-tabs
$s = preg_replace("#\\t? *\\x08#", '', $s);
// line wrap
if ($this->lineWrap > 0) {
$s = preg_replace_callback(
'#^(\t*)(.*)$#m',
array($this, 'wrap'),
$s
);
}
// remove HTML 4.01 optional end tags
if (!$this->xml && $this->removeOptional) {
$s = preg_replace('#\\s*#u', '', $s);
}
}
/**
* Callback function: | | ....
* @return string
*/
private function cb($matches)
{
// html tag
list(, $mText, $mComment, $mEnd, $mTag, $mAttr, $mEmpty) = $matches;
// [1] => text
// [1] => !-- comment --
// [2] => /
// [3] => TAG
// [4] => ... (attributes)
// [5] => / (empty)
$s = '';
// phase #1 - stuff between tags
if ($mText !== '') {
$item = reset($this->tagStack);
// text not allowed?
if ($item && !isset($item['dtdContent']['%DATA'])) { }
// inside pre & textarea preserve spaces
elseif (!empty($this->tagUsed['pre']) || !empty($this->tagUsed['textarea']) || !empty($this->tagUsed['script']))
$s = Texy::freezeSpaces($mText);
// otherwise shrink multiple spaces
else $s = preg_replace('#[ \n]+#', ' ', $mText);
}
// phase #2 - HTML comment
if ($mComment) return $s . '<' . Texy::freezeSpaces($mComment) . '>';
// phase #3 - HTML tag
$mEmpty = $mEmpty || isset(TexyHtml::$emptyElements[$mTag]);
if ($mEmpty && $mEnd) return $s; // bad tag; /end/
if ($mEnd) { // end tag
// has start tag?
if (empty($this->tagUsed[$mTag])) return $s;
// autoclose tags
$tmp = array();
$back = TRUE;
foreach ($this->tagStack as $i => $item)
{
$tag = $item['tag'];
$s .= $item['close'];
$this->space -= $item['indent'];
$this->tagUsed[$tag]--;
$back = $back && isset(TexyHtml::$inlineElements[$tag]);
unset($this->tagStack[$i]);
if ($tag === $mTag) break;
array_unshift($tmp, $item);
}
if (!$back || !$tmp) return $s;
// allowed-check (nejspis neni ani potreba)
$item = reset($this->tagStack);
if ($item) $dtdContent = $item['dtdContent'];
else $dtdContent = $this->baseDTD;
if (!isset($dtdContent[$tmp[0]['tag']])) return $s;
// autoopen tags
foreach ($tmp as $item)
{
$s .= $item['open'];
$this->space += $item['indent'];
$this->tagUsed[$item['tag']]++;
array_unshift($this->tagStack, $item);
}
} else { // start tag
$dtdContent = $this->baseDTD;
if (!isset($this->texy->dtd[$mTag])) {
// unknown (non-html) tag
$allowed = TRUE;
$item = reset($this->tagStack);
if ($item) $dtdContent = $item['dtdContent'];
} else {
// optional end tag closing
foreach ($this->tagStack as $i => $item)
{
// is tag allowed here?
$dtdContent = $item['dtdContent'];
if (isset($dtdContent[$mTag])) break;
$tag = $item['tag'];
// auto-close hidden, optional and inline tags
if ($item['close'] && (!isset(TexyHtml::$optionalEnds[$tag]) && !isset(TexyHtml::$inlineElements[$tag]))) break;
// close it
$s .= $item['close'];
$this->space -= $item['indent'];
$this->tagUsed[$tag]--;
unset($this->tagStack[$i]);
$dtdContent = $this->baseDTD;
}
// is tag allowed in this content?
$allowed = isset($dtdContent[$mTag]);
// check deep element prohibitions
if ($allowed && isset(TexyHtml::$prohibits[$mTag])) {
foreach (TexyHtml::$prohibits[$mTag] as $pTag)
if (!empty($this->tagUsed[$pTag])) { $allowed = FALSE; break; }
}
}
// empty elements se neukladaji do zasobniku
if ($mEmpty) {
if (!$allowed) return $s;
if ($this->xml) $mAttr .= " /";
$indent = $this->indent && empty($this->tagUsed['pre']) && empty($this->tagUsed['textarea']);
if ($indent && $mTag === 'br')
// formatting exception
return rtrim($s) . '<' . $mTag . $mAttr . ">\n" . str_repeat("\t", max(0, $this->space - 1)) . "\x07";
if ($indent && !isset(TexyHtml::$inlineElements[$mTag])) {
$space = "\r" . str_repeat("\t", $this->space);
return $s . $space . '<' . $mTag . $mAttr . '>' . $space;
}
return $s . '<' . $mTag . $mAttr . '>';
}
$open = NULL;
$close = NULL;
$indent = 0;
/*
if (!isset(TexyHtml::$inlineElements[$mTag])) {
// block tags always decorate with \n
$s .= "\n";
$close = "\n";
}
*/
if ($allowed) {
$open = '<' . $mTag . $mAttr . '>';
// receive new content (ins & del are special cases)
if (!empty($this->texy->dtd[$mTag][1])) $dtdContent = $this->texy->dtd[$mTag][1];
// format output
if ($this->indent && !isset(TexyHtml::$inlineElements[$mTag])) {
$close = "\x08" . '' . "\n" . str_repeat("\t", $this->space);
$s .= "\n" . str_repeat("\t", $this->space++) . $open . "\x07";
$indent = 1;
} else {
$close = '';
$s .= $open;
}
// TODO: problematic formatting of select / options, object / params
}
// open tag, put to stack, increase counter
$item = array(
'tag' => $mTag,
'open' => $open,
'close' => $close,
'dtdContent' => $dtdContent,
'indent' => $indent,
);
array_unshift($this->tagStack, $item);
$tmp = &$this->tagUsed[$mTag]; $tmp++;
}
return $s;
}
/**
* Callback function: wrap lines.
* @return string
*/
private function wrap($m)
{
list(, $space, $s) = $m;
return $space . wordwrap($s, $this->lineWrap, "\n" . $space);
}
}