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supports for multiple files; improvement in parser; supports for \url{} in latex2html; improved handling of frames

replace/c24a8d1de403113542ba0936e844151de2785013
Martin Monperrus 15 years ago
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0ce03f14cb
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8c5d439d00
1 changed files with 73 additions and 30 deletions
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  1. 103
      bibtexbrowser.php

103
bibtexbrowser.php
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@ -7,7 +7,7 @@ bibtexbrowser is a PHP script that creates publication lists from Bibtex files.
+++TOC+++
=====Major features=====
* **(11/2009)** bibtexbrowser generates [[http://www.monperrus.net/martin/accurate+bibliographic+metadata+and+google+scholar|Google Scholar metadata]] so as to improve the visibility of your papers on Google Scholar. **Warning: ** Google has now [[http://scholar.google.com/intl/en/scholar/inclusion.html|documented this feature]]. As of version >=20100621, Google Scholar Metadata should be completely correct.
* **(11/2009)** bibtexbrowser generates [[http://www.monperrus.net/martin/accurate+bibliographic+metadata+and+google+scholar|Google Scholar metadata]] so as to improve the visibility of your papers on Google Scholar. Since Google has now [[http://scholar.google.com/intl/en/scholar/inclusion.html|documented this feature]], as of version ≥20100621, Google Scholar Metadata should be completely correct.
* **(11/2009)** More and more academics use bibliographic software like [[http://www.zotero.org/|Zotero]] or [[http://www.mendeley.com/|Mendeley]]. bibtexbrowser generates [[http://ocoins.info/|COinS]] for automatic import of bibliographic entries with [[http://www.zotero.org/|Zotero]] and [[http://www.mendeley.com/|Mendeley]].
* **(10/2009)** People can subscribe to the RSS publication feed of an individual or a group so as to being kept up-to-date: bibtexbrowser generates RSS feeds for all queries (simply add &rss at the end of the URL)! [[http://www.monperrus.net/martin/bibtexbrowser.php?bib=monperrus.bib&all&rss|demo]]
* **(02/2009)** bibtexbrowser can display all entries for an author with an academic style (i.e book, articles, conference, workshop): [[http://www.monperrus.net/martin/bibtexbrowser.php?bib=metrics.bib&academic=Ducasse|demo]]
@ -15,6 +15,7 @@ bibtexbrowser is a PHP script that creates publication lists from Bibtex files.
* **(04/2007)**: bibtexbrowser is easy to install: just a single file.
=====Other features=====
* **(10/2010)** bibtexbrowser now supports multiple bibtex files (''bibtexbrowser.php?bib=file1.bib;file2.bib'')
* **(05/2010)** bibtexbrowser adds links to your co-author pages if you define the corresponding @string (see function addHomepageLink)
* **(01/2010)** bibtexbrowser can handle user-defined bibliographic styles
* **(10/2009)** bibtexbrowser is able to generate a bibtex file containing only the selected entries (simply add &astext at the end of the link)
@ -55,7 +56,14 @@ Create a bib file with the publication records (e.g. csgroup2008.bib) and upload
* Use the link ''bibtexbrowser.php?bib=csgroup2008.bib&all'' (pub list sorted by year)
* Use the link ''bibtexbrowser.php?bib=csgroup2008.bib&all&academic'' (pub list sorted by publication type, then by year)
** Warning **: bibtexbrowser maintains a cached version of the parsed bibtex, for high performance, check that PHP can write in the directory containing the bibtex file.
** Warning **: bibtexbrowser maintains a cached version of the parsed bibtex, for high performance, check that PHP can write in the working directory of PHP.
=====Handling mutliple bibtex files=====
It is a common practice to create one file for the @string, and another one with the bib entries. In this case, just give bibtexbrowser the files separated by a semi-column e.g:
''bibtexbrowser.php?bib=strings.bib;csgroup2008.bib''
=====How to include your publication list in your home page=====
@ -200,7 +208,7 @@ License, or (at your option) any later version.
/** Release 2009-01-05
* Added support for new bibliographic styles (users just have to create a function and change a configuration parameter, see documentation)
* Packaged the IEEE-like bibliographic style of J�nos Tapolcai (many thanks J�nos), see http://www.monperrus.net/martin/bibtexbrowser-style-janos.php.txt
* Packaged the IEEE-like bibliographic style of Janos Tapolcai (many thanks Janos), see http://www.monperrus.net/martin/bibtexbrowser-style-janos.php.txt
* Added support for external CSS (if bibtexbrowser.css exists, it is used instead of the embedded one)
* Added support for local configuration parameters in bibtexbrowser.local.php
* Bug in RSS fixed (handling of &)
@ -248,6 +256,7 @@ License, or (at your option) any later version.
@define('BOOKTITLE', 'booktitle');
@define('YEAR', 'year');
@define('BUFFERSIZE',100000);
@define('MULTIPLE_BIB_SEPARATOR',';');
// in embedded mode, we still need a URL for displaying bibtex entries alone
// this is usually resolved to bibtexbrowser.php
@ -290,32 +299,51 @@ function setDB() {
return; // we cannot set the db wtihout a bibfile
}
// $_GET[Q_FILE] can be urlencoded
// first does the bibfiles exist:
// $_GET[Q_FILE] can be urlencoded for instance if they contain slashes
// so we decode it
$_GET[Q_FILE] = urldecode($_GET[Q_FILE]);
if (!file_exists($_GET[Q_FILE])) {
// to automate dectection of faulty links with tools such as webcheck
header('HTTP/1.1 404 Not found');
die('<b>the bib file '.$_GET[Q_FILE].' does not exist !</b>');
}
// ---------------------------- HANDLING unexistent files
foreach(explode(MULTIPLE_BIB_SEPARATOR, $_GET[Q_FILE]) as $bib) {
if (!file_exists($bib)) {
// to automate dectection of faulty links with tools such as webcheck
header('HTTP/1.1 404 Not found');
die('<b>the bib file '.$bib.' does not exist !</b>');
}
} // end for each
// ---------------------------- HANDLING HTTP If-modified-since
// testing with $ curl -v --header "If-Modified-Since: Fri, 23 Oct 2010 19:22:47 GMT" "... bibtexbrowser.php?key=wasylkowski07&bib=..%252Fstrings.bib%253B..%252Fentries.bib"
// and $ curl -v --header "If-Modified-Since: Fri, 23 Oct 2000 19:22:47 GMT" "... bibtexbrowser.php?key=wasylkowski07&bib=..%252Fstrings.bib%253B..%252Fentries.bib"
// save bandwidth and server cpu
// (imagine the number of requests from search engine bots...)
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && (strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])>filemtime($_GET[Q_FILE]))) {
$bib_is_unmodified = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ;
foreach(explode(MULTIPLE_BIB_SEPARATOR, $_GET[Q_FILE]) as $bib) {
$bib_is_unmodified =
$bib_is_unmodified
&& (strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])>filemtime($bib));
} // end for each
if ( $bib_is_unmodified ) {
header("HTTP/1.1 304 Not Modified");
exit;
}
// ---------------------------- HANDLING caching of compiled bibtex files
// for sake of performance, once the bibtex file is parsed
// we try to save a "compiled" in a txt file
$compiledbib = $_GET[Q_FILE].'.txt';
$compiledbib = 'bibtexbrowser_'.md5($_GET[Q_FILE]).'.dat';
$parse=true;
foreach(explode(MULTIPLE_BIB_SEPARATOR, $_GET[Q_FILE]) as $bib) {
// do we have a compiled version ?
if (is_file($compiledbib) && is_readable($compiledbib)) {
// is it up to date ? wrt to the bib file and the script
// then upgrading with a new version of bibtexbrowser triggers a new compilation of the bib file
if (filemtime($_GET[Q_FILE])<filemtime($compiledbib) && filemtime(__FILE__)<filemtime($compiledbib)) {
if (filemtime($bib)<filemtime($compiledbib) && filemtime(__FILE__)<filemtime($compiledbib)) {
$_GET[Q_DB] = unserialize(file_get_contents($compiledbib));
// basic test
// do we have an correct version of the file
@ -325,16 +353,21 @@ function setDB() {
}
}
}
} // end for each
// we don't have a compiled version
if ($parse) {
//echo '<!-- parsing -->';
// then parsing the file
$db = new BibDataBase();
$db->load($_GET[Q_FILE]);
foreach(explode(MULTIPLE_BIB_SEPARATOR, $_GET[Q_FILE]) as $bib) {
$db->load($bib);
}
$_GET[Q_DB]=$db;
// are we able to save the compiled version ?
if ((!is_file($compiledbib) && is_writable(dirname($compiledbib))) || (is_file($compiledbib) && is_writable($compiledbib)) ) {
// note that the compiled version is saved in the current working directory
if ((!is_file($compiledbib) && is_writable(getcwd())) || (is_file($compiledbib) && is_writable($compiledbib)) ) {
// we can use file_put_contents
// but don't do it for compatibility with PHP 4.3
$f = fopen($compiledbib,'w');
@ -477,7 +510,7 @@ for ( $i=0; $i < strlen( $sread ); $i++) { $s=$sread[$i];
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_ESCAPED;
$entryvalue=$entryvalue.$s;}
else if ($s=='{') {
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_1NESTEDLEVEL;}
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_1NESTEDLEVEL;$entryvalue=$entryvalue.$s;}
else if ($s=='}') {
$state = GETVALUE;}
else { $entryvalue=$entryvalue.$s;}
@ -493,9 +526,9 @@ for ( $i=0; $i < strlen( $sread ); $i++) { $s=$sread[$i];
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_1NESTEDLEVEL_ESCAPED;
$entryvalue=$entryvalue.$s;}
else if ($s=='{') {
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_2NESTEDLEVEL;}
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_2NESTEDLEVEL;$entryvalue=$entryvalue.$s;}
else if ($s=='}') {
$state = GETVALUEDELIMITEDBYCURLYBRACKETS;}
$state = GETVALUEDELIMITEDBYCURLYBRACKETS;$entryvalue=$entryvalue.$s;}
else { $entryvalue=$entryvalue.$s;}
}
// handle anti-slashed brackets
@ -510,9 +543,9 @@ for ( $i=0; $i < strlen( $sread ); $i++) { $s=$sread[$i];
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_2NESTEDLEVEL_ESCAPED;
$entryvalue=$entryvalue.$s;}
else if ($s=='{') {
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_3NESTEDLEVEL;}
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_3NESTEDLEVEL;$entryvalue=$entryvalue.$s;}
else if ($s=='}') {
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_1NESTEDLEVEL;}
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_1NESTEDLEVEL;$entryvalue=$entryvalue.$s;}
else { $entryvalue=$entryvalue.$s;}
}
// handle anti-slashed brackets
@ -527,7 +560,7 @@ for ( $i=0; $i < strlen( $sread ); $i++) { $s=$sread[$i];
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_3NESTEDLEVEL_ESCAPED;
$entryvalue=$entryvalue.$s;}
else if ($s=='}') {
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_2NESTEDLEVEL;}
$state = GETVALUEDELIMITEDBYCURLYBRACKETS_2NESTEDLEVEL;$entryvalue=$entryvalue.$s;}
else { $entryvalue=$entryvalue.$s;}
}
// handle anti-slashed brackets
@ -720,11 +753,14 @@ function char2html($line,$latexmodifier,$char,$entitiyfragment) {
function latex2html($line) {
$line = preg_replace('/([^\\\\])~/','\\1&nbsp;', $line);
// performance increases with this test
// bug found by Serge Barral: what happens if we have curly braces only (typically to ensure case in Latex)
// added && strpos($line,'{')===false
if (strpos($line,'\\')===false && strpos($line,'{')===false) return $line;
// handling \url{....}
// often used in howpublished for @misc
$line = preg_replace('/\\\\url\{(.*)\}/U','<a href="\\1">\\1</a>', $line);
$chars="abcdefghijklmnopqrstuvwxyz";
for($i=0;$i<strlen($chars);$i++) {
@ -883,7 +919,7 @@ class BibEntry {
/** Returns the authors of this entry as an array */
function getRawAuthors() {
$authors = array();
foreach (explode(' and ', $this->getAuthor()) as $author) {
foreach (preg_split('/ and /i', $this->getAuthor()) as $author) {
$authors[]=$author;
}
return $authors;
@ -948,7 +984,7 @@ class BibEntry {
/** Returns the editors of this entry as an arry */
function getEditors() {
$editors = array();
foreach (explode(' and ', $this->getField(EDITOR)) as $editor) {
foreach (preg_split('/ and /i', $this->getField(EDITOR)) as $editor) {
$editors[]=$editor;
}
return $editors;
@ -1010,6 +1046,7 @@ class BibEntry {
// i.e. added join(" ",$this->getFields())
// and html_entity_decode
if (!$field) {
// warning html_entity_decode supports encoding since PHP5
return preg_match('/'.$phrase.'/i',$this->getConstants().' '.@html_entity_decode(join(" ",$this->getFields()),ENT_NOQUOTES,ENCODING));
//return stripos($this->getText(), $phrase) !== false;
}
@ -1124,14 +1161,14 @@ class BibEntry {
* The object may be mutated to read the rest of the fields.
*/
function toEntryUnformatted() {
echo '<div class="purebibtex">';
echo '<pre class="purebibtex">'; // pre is nice when it is embedded with no CSS available
echo $this->getConstants();
if ($this->hasField('url')) {
$url=$this->getField('url');
// this is not a parsing but a simple replacement
echo str_replace($url,'<a href="'.$url.'">'.$url.'</a>',$this->getText());
} else echo $this->getText();
echo '</div>';
echo '</pre>';
}
}
@ -1279,7 +1316,6 @@ class MenuManager extends BibtexBrowserDisplay {
/** Creates a new display manager that uses the given bib database. */
function MenuManager(&$db) {
$this->db =$db;
new HTMLWrapper($this,array(array('robots','noindex')));
}
/** function called back by HTMLWrapper */
@ -2429,7 +2465,7 @@ class Dispatcher {
// we send a redirection for having the frameset
// if some contents have already been sent, for instance if we are included
// this means doing nothing
if ( ! /* not */ headers_sent() ) {
if ( headers_sent() == false ) { /* to avoid sending an unnecessary frameset */
header("Location: ".$_SERVER['SCRIPT_NAME']."?frameset&bib=".$_GET[Q_FILE]);
}
}
@ -2449,7 +2485,12 @@ class Dispatcher {
$this->wrapper='NoWrapper';
}
function search() { $this->query[Q_SEARCH]=$_GET[Q_SEARCH]; }
function search() {
if (preg_match('/utf-?8/i',ENCODING)) {
$_GET[Q_SEARCH] = urldecode($_GET[Q_SEARCH]);
}
$this->query[Q_SEARCH]=$_GET[Q_SEARCH];
}
function exclude() { $this->query[Q_EXCLUDE]=$_GET[Q_EXCLUDE]; }
@ -2464,7 +2505,9 @@ class Dispatcher {
function type() { $this->query[Q_TYPE]=$_GET[Q_TYPE]; }
function menu() {
new MenuManager($_GET[Q_DB]);
$menu = new MenuManager($_GET[Q_DB]);
new $this->wrapper($menu,array(array('robots','noindex')));
return 'END_DISPATCH';
}
/** the academic keyword in URLs switch from a year based viey to a publication type based view */
@ -2513,7 +2556,7 @@ class Dispatcher {
</html>
<?php
return 'END_DISPATCH';
}
}

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