Документ взят из кэша поисковой машины. Адрес оригинального документа : http://hea.iki.rssi.ru/conf/hea2007/internal/include/bibtex.php~
Дата изменения: Thu Jul 26 14:24:06 2007
Дата индексирования: Tue Oct 2 00:46:04 2012
Кодировка:

// ---------------------------------------------------------------------------
// SimplyBibTeX - simple PHP BibTeX viewer
// ---------------------------------------------------------------------------
// Module : bibtex parser class
// Description : generates a 2d array of all bibtex items
// Author : Hartmut Seichter
// Acknowledgement : Zhe Wu at Univ. of Rochester, http://qcite.com
// License : GPL
// CVS : $Id: bibtex.php,v 1.18 2005/01/24 06:18:38 seichter Exp $
// ---------------------------------------------------------------------------

require_once('template.php');

class BibTeX
{

var $count;
var $items;
var $types;
var $filename;

function BibTeX($file) {
$this->items = array(
'comments' => array(),
'abstract' => array(),
'address' => array(),
'author' => array(),
'persons_number' => array(),
'date' => array(),
'vorname' => array(),
'vatersname' => array(),
'name' => array(),
'affiliation' => array(),
'title' => array());

$this->filename = $file;
}

function parse() {

$value = array();
$var = array();

$this->count=-1;
$lineindex = 0;

$fieldcount = -1;

$lines = file($this->filename);

if (!$lines) return;

foreach($lines as $line) {

$lineindex++;

$this->items['lineend'][$this->count] = $lineindex;

$line = trim($line);

$raw_line = $line + '\n';

$line=str_replace("'","`",$line);
$seg=str_replace("\"","`",$line);

$ps=strpos($seg,'=');

$segtest=strtolower($seg);

// some funny comment string
if (strpos($segtest,'@string')!==false) {continue;}

// pybliographer comments
if (strpos($segtest,'@comment')!==false) {continue;}

// normal TeX style comment
if (strpos($seg,'%%')!==false) {continue;}

/* ok when there is nothing to see, skip it! */
if (!strlen($seg)) continue;

if ("@" == $seg[0]) {

$this->count++;
$this->items['raw'][$this->count] = $line . "\r\n";

$ps=strpos($seg,'@');
$pe=strpos($seg,'{');

$this->types[$this->count]=trim(substr($seg, 1,$pe-1));

$fieldcount=-1;

$this->items['linebegin'][$this->count] = $lineindex;

} // #of item increase
elseif ($ps!==false ) { // one field begins

$this->items['raw'][$this->count] .= $line . "\r\n";

$ps=strpos($seg,'=');

$fieldcount++;

$var[$fieldcount]=strtolower(trim(substr($seg,0,$ps)));

if ($var[$fieldcount]=='pages') {
$ps=strpos($seg,'=');
$pm=strpos($seg,'--');
$pe=strpos($seg,'},');

$pagefrom[$this->count] = substr($seg,$ps,$pm-$ps);
$pageto[$this->count]=substr($seg,$pm,$pe-$pm);

$bp=str_replace('=','',$pagefrom[$this->count]); $bp=str_replace('{','',$bp);$bp=str_replace('}','',$bp);$bp=trim(str_replace('-','',$bp));

$ep=str_replace('=','',$pageto[$this->count]); $bp=str_replace('{','',$bp);$bp=str_replace('}','',$bp);;$ep=trim(str_replace('-','',$ep));
}

$pe=strpos($seg,'},');

if ($pe===false) {
$value[$fieldcount]=strstr($seg,'=');
} else {
$value[$fieldcount]=substr($seg,$ps,$pe);
}

} else {
$this->items['raw'][$this->count] .= $line . "\r\n";
$pe=strpos($seg,'},');

if ($fieldcount > -1) {
if ($pe===false) {
$value[$fieldcount].=' '.strstr($seg,' ');
} else {
$value[$fieldcount] .=' '.substr($seg,$ps,$pe);
}
}
}

if ($fieldcount > -1) {
$v = $value[$fieldcount];

$v=str_replace('=','',$v);
$v=str_replace('{','',$v);
$v=str_replace('}','',$v);
$v=str_replace(',',' ',$v);
$v=str_replace('\'',' ',$v);
$v=str_replace('\"',' ',$v);

// test!
//$v=str_replace('`',' ',$v);

$v=trim($v);

$this->items["$var[$fieldcount]"][$this->count]="$v";
}

}
} // parse

function set(&$template,$name,$id,$default,$encode,$trans) {

$template->set($name,(isset($this->items[$name][$id])? ($encode) ? strtr($this->items[$name][$id],$trans) : $this->items[$name][$id] : $default));

}
function render_id(&$template, $encode, $id, &$trans)
{
$output = NULL;

if ($encode && !$trans)
$trans = get_html_translation_table(HTML_ENTITIES);

// fill the template engine with the respective values
$template->set("type",$this->types[$id]);

if ($id % 2)
$template->set("oddeven","odd");
else
$template->set("oddeven","even");

$template->set("number",$id);

$this->set($template,'name', $id,"",$encode,$trans);
$this->set($template,'vorname', $id,"",$encode,$trans);
$this->set($template,'vatersname', $id,"",$encode,$trans);
$this->set($template,'email', $id,"",$encode,$trans);
$this->set($template,'comments', $id,"",$encode,$trans);
$this->set($template,'abstract', $id,"",$encode,$trans);
//$this->set($template,'address', $id,"",$encode,$trans);
$this->set($template,'affiliation', $id,"",$encode,$trans);
//$this->set($template,'support', $id,"",$encode,$trans);
$this->set($template,'title', $id,"",$encode,$trans);
//$this->set($template,'presentation_none', $id,"",$encode,$trans);
//$this->set($template,'presentation_poster', $id,"",$encode,$trans);
//$this->set($template,'presentation_talk', $id,"",$encode,$trans);
//$this->set($template,'under35', $id,"",$encode,$trans);
$this->set($template,'persons_number', $id,"",$encode,$trans);
$this->set($template,'date', $id,"",$encode,$trans);

$template->fetch(true);

$output .= $template->output;

return $output;
}

function render_search(&$template, $encode, $fallbacks, $search)
{
$output = NULL;
$atoms = explode('=',$search);

for ($i = 0; $i <= $this->count; $i++ ) {

if (isset($this->items[$atoms[0]][$i]))

if (strstr($this->items[$atoms[0]][$i],$atoms[1])) {

$output .= $this->render_id($template,$encode,$i,$trans);

}
}

return $output;

}

function render_all(&$template, $encode, $fallbacks, &$trans)
{
$output = "

".($this->count+1)." records

";
for ($i = 0; $i <= $this->count; $i++)
{

$output .= $this->render_id($template,$encode,$i,$trans);

}

return $output;
}
}

?>