New text editor operation: save selection to a tiddler

core/modules/editor/operations/text/save-selection.js

@@ -0,0 +1,23 @@
+/*\
+title: $:/core/modules/editor/operations/text/save-selection.js
+type: application/javascript
+module-type: texteditoroperation
+
+Text editor operation to save the current selection in a specified tiddler
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports["save-selection"] = function(event,operation) {
+	var tiddler = event.paramObject.tiddler,
+		field = event.paramObject.field || "text";
+	if(tiddler && field) {
+		this.wiki.setText(tiddler,field,null,operation.text.substring(operation.selStart,operation.selEnd));
+	}
+};
+
+})();