prelim test-preview seems to work

mass-rename.php

@@ -20,6 +20,9 @@ $remove_self = false;
 //	If true, directories will be skipped and thus will not be renamed.
 $skip_directories = true;
 
+//	Maximum results per preview group.
+$count_group_size = 100;
+
 
 
 //	====================================================================================
@@ -154,6 +157,79 @@ foreach ($contents as $c){
 
 echo " ================================\n";
 
+$content_map = array();
+$content_map_new = array();
+
+//	Build a content map: array with path => filename format.
+foreach ($contents as $c){
+	
+	if (is_dir($c))
+		$filename = null;
+	else
+		$filename = basename($c);
+	
+	$content_map[$c] = $filename;
+}
+
+$content_map_new = $content_map;
+
+// print_r($content_map);
+//	Build the replacement content map. This contains the same path => filename
+//	format but with the updated filename instead of the original.
+foreach ($content_map_new as $p => $f){
+	
+	// REPLACE2($str, $search, $replace)
+	$filename_new = REPLACE2($f, $regex_search, $replace_str);
+	$path_new = REPLACE2($p, $regex_search, $replace_str);
+	$content_map_new[$p] = $filename_new;
+}
+
+echo " > New content map created. See below for preview.\n";
+
+echo " > FILE AND DIRECTORY PREVIEW:\n ================================\n";
+
+/*
+
+$counter = 0;
+$counter_a = 0;
+$count_max = count($content_map);
+$last_key = "";
+
+*/
+
+foreach ($content_map as $p => $f){
+	
+	if (!is_dir($p)){
+		
+		$new_path = dirname($p) . "/" . $content_map_new[$p];
+		echo " [OLD]: " . $p . "\n";
+		echo " [NEW]: " . $new_path . "\n\n";
+	}
+	
+	/*
+	if ($counter + 1 < $count_max){
+		$counter++;
+		$counter_a++;
+	}
+	
+	if ($counter_a > 
+	*/
+}
+
+
+/*
+
+echo " *** Please review above results carefully ***\n\n";
+echo " - To begin operation (cannot be undone), type 'Y' and press ENTER/RETURN.\n";
+echo " - To preview more results, type 'P'  and press ENTER/RETURN.\n";
+echo " - To cancel script without making any changes, type 'N' and press ENTER/RETURN.\n";
+echo "\n >> Begin operation? [Y/N/P]: ";
+$response = fgets(STDIN);
+$begin_operation = substr($response, 0, strlen($response) - 1);
+
+*/
+
+