move magpie to lib/

lib/magpierss/rss_utils.inc

@@ -0,0 +1,67 @@
+<?php
+/*
+ * Project:     MagpieRSS: a simple RSS integration tool
+ * File:        rss_utils.inc, utility methods for working with RSS
+ * Author:      Kellan Elliott-McCrea <kellan@protest.net>
+ * Version:     0.51
+ * License:     GPL
+ *
+ * The lastest version of MagpieRSS can be obtained from:
+ * http://magpierss.sourceforge.net
+ *
+ * For questions, help, comments, discussion, etc., please join the
+ * Magpie mailing list:
+ * magpierss-general@lists.sourceforge.net
+ */
+
+
+/*======================================================================*\
+    Function: parse_w3cdtf
+    Purpose:  parse a W3CDTF date into unix epoch
+
+    NOTE: http://www.w3.org/TR/NOTE-datetime
+\*======================================================================*/
+
+function parse_w3cdtf ( $date_str ) {
+    
+    # regex to match wc3dtf
+    $pat = "/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/";
+    
+    if ( preg_match( $pat, $date_str, $match ) ) {
+        list( $year, $month, $day, $hours, $minutes, $seconds) = 
+            array( $match[1], $match[2], $match[3], $match[4], $match[5], $match[7]);
+        
+        # calc epoch for current date assuming GMT
+        $epoch = gmmktime( $hours, $minutes, $seconds, $month, $day, $year);
+        
+        $offset = 0;
+        if ( $match[11] == 'Z' ) {
+            # zulu time, aka GMT
+        }
+        else {
+            list( $tz_mod, $tz_hour, $tz_min ) =
+                array( $match[8], $match[9], $match[10]);
+            
+            # zero out the variables
+            if ( ! $tz_hour ) { $tz_hour = 0; }
+            if ( ! $tz_min ) { $tz_min = 0; }
+        
+            $offset_secs = (($tz_hour*60)+$tz_min)*60;
+            
+            # is timezone ahead of GMT?  then subtract offset
+            #
+            if ( $tz_mod == '+' ) {
+                $offset_secs = $offset_secs * -1;
+            }
+            
+            $offset = $offset_secs; 
+        }
+        $epoch = $epoch + $offset;
+        return $epoch;
+    }
+    else {
+        return -1;
+    }
+}
+
+?>