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<?php
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// $Header: /cvsroot/html2ps/xhtml.autoclose.inc.php,v 1.5 2005/07/28 17:04:33 Konstantin Exp $
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function autoclose_tag(&$sample_html, $offset, $tags, $nested, $close) {
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$tags = mk_open_tag_regexp($tags);
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while (preg_match("#^(.*?)({$tags})#is", substr($sample_html, $offset),$matches)) {
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// convert tag name found to lower case
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$tag = strtolower($matches[3]);
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// calculate position of the tag found
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$tag_start = $offset + strlen($matches[1]);
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$tag_end = $tag_start + strlen($matches[2]);
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if ($tag == $close) { return $tag_end; };
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// REQ: PHP 4.0.5
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if (isset($nested[$tag])) {
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$offset = $nested[$tag]($sample_html, $tag_end);
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} else {
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$to_be_inserted = "<".$close.">";
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$sample_html = substr_replace($sample_html, $to_be_inserted, $tag_start ,0);
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return $tag_start + strlen($to_be_inserted);
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};
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};
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return $offset;
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}
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// removes from current html string a piece from the current $offset to
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// the beginning of next $tag; $tag should contain a '|'-separated list
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// of opening or closing tags. This function is useful for cleaning up
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// messy code containing trash between TD, TR and TABLE tags.
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function skip_to(&$html, $offset, $tag) {
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$prefix = substr($html,0,$offset);
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$suffix = substr($html,$offset);
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if (preg_match("#^(.*?)<\s*({$tag})#is", $suffix, $matches)) {
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$suffix = substr($suffix, strlen($matches[1]));
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};
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$html = $prefix . $suffix;
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}
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function autoclose_tag_cleanup(&$sample_html, $offset, $tags_raw, $nested, $close) {
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$tags = mk_open_tag_regexp($tags_raw);
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skip_to($sample_html, $offset, $tags_raw);
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while (preg_match("#^(.*?)({$tags})#is", substr($sample_html, $offset),$matches)) {
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// convert tag name found to lower case
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$tag = strtolower($matches[3]);
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// calculate position of the tag found
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$tag_start = $offset + strlen($matches[1]);
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$tag_end = $tag_start + strlen($matches[2]);
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if ($tag == $close) { return $tag_end; };
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// REQ: PHP 4.0.5
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if (isset($nested[$tag])) {
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$offset = $nested[$tag]($sample_html, $tag_end);
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} else {
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$to_be_inserted = "<".$close.">";
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$sample_html = substr_replace($sample_html, $to_be_inserted, $tag_start ,0);
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return $tag_start + strlen($to_be_inserted);
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};
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skip_to($sample_html, $offset, $tags_raw);
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};
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return $offset;
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}
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?>
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