Bug #18535 » bug_7984_v3_typo3_4-1-6.diff
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* @access private
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* @see stdWrap()
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*/
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function crop($content,$options) {
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function crop($content,$options) {
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$options = explode('|',$options);
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$chars = intval($options[0]);
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$afterstring = trim($options[1]);
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$crop2space = trim($options[2]);
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if ($chars) {
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if (strlen($content)>abs($chars)) {
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if ($chars<0) {
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$content = $GLOBALS['TSFE']->csConvObj->substr($GLOBALS['TSFE']->renderCharset,$content,$chars);
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$trunc_at = strpos($content, ' ');
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$content = ($trunc_at&&$crop2space) ? $afterstring.substr($content,$trunc_at) : $afterstring.$content;
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$tags= 'a|b|blockquote|body|div|em|font|form|h1|h2|h3|h4|h5|h6|i|li|map|ol|option|p|pre|sub|sup|select|span|strong|table|td|textarea|tr|u|ul|br|hr|img|input|area|link';
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$regEx = '/(\<\/?(?:' . $tags . ')(?:\s*\>|\s[^\>]*\>))/si';
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$splittedContent = preg_split($regEx, $content, -1, PREG_SPLIT_DELIM_CAPTURE);
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$strlen = 0;
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// reverse array for 'back cropping'
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$splittedContent = $chars < 0 ? array_reverse($splittedContent) : $splittedContent;
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// crop the text (chars of a tag are not counted)
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for ($offset=0; $offset < count($splittedContent); $offset++) {
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if ($offset%2 === 0) {
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$thisStrLen = $GLOBALS['TSFE']->csConvObj->strlen($GLOBALS['TSFE']->renderCharset, html_entity_decode($splittedContent[$offset],ENT_COMPAT,$GLOBALS['TSFE']->renderCharset));
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if (($strlen + $thisStrLen > abs($chars))) {
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$croppedOffset = NULL; // offset of the content item which was cropped
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if ($chars < 0) {
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$cropPosition = $chars + $strlen;
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$splittedContent[$offset] = $GLOBALS['TSFE']->csConvObj->substr($GLOBALS['TSFE']->renderCharset, $splittedContent[$offset], $cropPosition);
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$truncatePosition = strpos($splittedContent[$offset], ' ');
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$splittedContent[$offset] = $crop2space ? $afterstring . $GLOBALS['TSFE']->csConvObj->substr($GLOBALS['TSFE']->renderCharset, $splittedContent[$offset], (int)$truncatePosition) : $afterstring . $splittedContent[$offset];
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} else {
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$cropPosition = $chars - $strlen;
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$splittedContent[$offset] = $GLOBALS['TSFE']->csConvObj->substr($GLOBALS['TSFE']->renderCharset, $splittedContent[$offset], 0, $cropPosition);
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$truncatePosition = strrpos($splittedContent[$offset], ' ');
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$splittedContent[$offset] = $crop2space ? $GLOBALS['TSFE']->csConvObj->substr($GLOBALS['TSFE']->renderCharset, $splittedContent[$offset], 0, (int)$truncatePosition) . $afterstring : $splittedContent[$offset] . $afterstring;
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}
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// remember the $offset at which we cropped the content
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$croppedOffset = $offset;
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break;
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} else {
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$content = $GLOBALS['TSFE']->csConvObj->substr($GLOBALS['TSFE']->renderCharset,$content,0,$chars);
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$trunc_at = strrpos($content, ' ');
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$content = ($trunc_at&&$crop2space) ? substr($content, 0, $trunc_at).$afterstring : $content.$afterstring;
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$strlen += $thisStrLen;
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}
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}
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}
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return $content;
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// close cropped tags
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$closingTags = array();
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if($croppedOffset !== NULL) {
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$tagName = '';
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$openingTagRegEx = '/^<([a-zA-Z0-6]+)(?:\s|>)/';
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$closingTagRegEx = '/^<\/([a-zA-Z0-6]+)(?:\s|>)/';
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for ($offset=$croppedOffset-1; $offset >= 0; $offset = $offset-2) {
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if (preg_match('/\/\>$/',$splittedContent[$offset])) continue; // ignore empty element tags (e.g. <br />)
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preg_match($chars<0?$closingTagRegEx:$openingTagRegEx, $splittedContent[$offset], $matches);
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$tagName = $matches[1];
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// seek for the closing (or opening) tag
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if (trim($tagName)!=='') {
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$seekingTagName = '';
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for ($seekingOffset=$offset+2; $seekingOffset < count($splittedContent); $seekingOffset = $seekingOffset+2) {
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preg_match($chars<0?$openingTagRegEx:$closingTagRegEx, $splittedContent[$seekingOffset], $matches);
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$seekingTagName = $matches[1];
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if ($tagName === $seekingTagName) { // we found a matching tag
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// add closing tag only if it occurs after the cropped content item
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if ($seekingOffset > $croppedOffset) {
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$closingTags[] = $splittedContent[$seekingOffset];
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}
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break;
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}
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}
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}
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}
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// drop the unnecessary items of the content array
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array_splice($splittedContent,$croppedOffset+1);
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}
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if ($chars < 0) { // reverse array for 'back cropping'
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$splittedContent = array_merge($splittedContent,$closingTags);
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$splittedContent = array_reverse($splittedContent);
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} else {
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$splittedContent = array_merge($splittedContent,$closingTags);
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}
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return implode('',$splittedContent);
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}
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/**
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