Don't include lines hanging at the end of the selection when indenting

Author: marijnh

lib/codemirror.js

@@ -943,12 +943,17 @@ var CodeMirror = (function() {
         indentLine(sel.from.line, options.enterMode == "keep" ? "prev" : "smart");
     }
     function handleTab(shift) {
+      function indentSelected(mode) {
+        if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
+        var e = sel.to.line - (sel.to.ch ? 1 : 0);
+        for (var i = sel.from.line; i < e; ++i) indentLine(i, mode);
+      }
       shiftSelecting = null;
       switch (options.tabMode) {
       case "default":
         return false;
       case "indent":
-        for (var i = sel.from.line, e = sel.to.line; i <= e; ++i) indentLine(i, "smart");
+        indentSelected("smart");
         break;
       case "classic":
         if (posEq(sel.from, sel.to)) {
@@ -957,7 +962,7 @@ var CodeMirror = (function() {
           break;
         }
       case "shift":
-        for (var i = sel.from.line, e = sel.to.line; i <= e; ++i) indentLine(i, shift ? "subtract" : "add");
+        indentSelected(shift ? "subtract" : "add");
         break;
       }
       return true;