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Entries are now sorted by month if the field is present.

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Excellent patch from Jan Geldmacher.
This commit is contained in:
Martin Monperrus
2011-12-11 12:18:21 +01:00
parent 46b298d429
commit ac682585cb
1 changed files with 55 additions and 2 deletions
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bibtexbrowser.php
+55 -2
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@@ -1420,6 +1420,59 @@ function _DefaultBibliographySections() {
return $function();
}
/** Compares two instances of BibEntry by month
* @author Jan Geldmacher
*/
function compare_bib_entry_by_month($a, $b)
{
// this was the old behavior
// return strcmp($a->getKey(),$b->getKey());
//bibkey which is used for sorting
$sort_key = 'month';
//desired order of values
$sort_order_values = array('jan','january','feb','february','mar','march','apr','april','may','jun','june','jul','july','aug','august','sep','september','oct','october','nov','november','dec','december');
//order: 1=as specified in $sort_order_values or -1=reversed
$order = -1;
//first check if the search key exists
if (!array_key_exists($sort_key,$a->fields) && !array_key_exists($sort_key,$b->fields)) {
//neither a nor b have the key -> we compare the keys
$retval=strcmp($a->getKey(),$b->getKey());
}
elseif (!array_key_exists($sort_key,$a->fields)) {
//only b has the field -> b is greater
$retval=-1;
}
elseif (!array_key_exists($sort_key,$b->fields)) {
//only a has the key -> a is greater
$retval=1;
}
else {
//both have the key, sort using the order given in $sort_order_values
$val_a = array_search(strtolower($a->fields[$sort_key]), $sort_order_values);
$val_b = array_search(strtolower($b->fields[$sort_key]), $sort_order_values);
if (($val_a == FALSE && $val_b == FALSE) || ($val_a == $val_b)) {
//neither a nor b are in the search array or a=b -> both are equal
$retval=0;
}
elseif (($val_a == FALSE) || ($val_a < $val_b)) {
//a is not in the search array or a<b -> b is greater
$retval=-1;
}
elseif (($val_b == FALSE) || (($val_a > $val_b))){
//b is not in the search array or a>b -> a is greater
$retval=1;
}
}
return $order*$retval;
}
/** the default sections */
function DefaultBibliographySections() {
return
@@ -2040,8 +2093,8 @@ class DefaultContentStrategy {
</tr>
<?php
}
// sort by keys, enable a nice sorting as Dupont2008a, Dupont2008b, Dupont2008c
krsort($entries);
// sort by month if present, otherwise by keys (Dupont2008a, Dupont2008b, Dupont2008c)
uasort($entries, "compare_bib_entry_by_month");
foreach ($entries as $bib) {
if ($display->isDisplayed($index)) {
$bib->setAbbrv($refnum--);