fix cursor adjustment done by replaceRange

lib/codemirror.js

@@ -951,23 +951,21 @@ var CodeMirror = (function() {
         while (pos < indentation) {++pos; indentString += " ";}
       }
 
-      var adjustFrom = sel.from.line == n && sel.from.ch <= curSpaceString.length,
-          adjustTo = sel.to.line == n && sel.to.ch <= curSpaceString.length;
       replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
-      if (adjustFrom || adjustTo) {
-        var pos = {line: n, ch: indentString.length};
-        setSelection(adjustFrom ? pos : sel.from, adjustTo ? pos : sel.to);
-      }
     }
 
     function replaceRange(code, from, to) {
       from = clipPos(from);
       if (!to) to = from; else to = clipPos(to);
+      code = splitLines(code);
       function adjustPos(pos) {
         if (posLess(pos, from)) return pos;
         if (posLess(pos, to)) return end;
-        if (pos.line == to.line) return {line: end.line, ch: pos.ch + end.ch - to.ch};
-        return {line: pos.line + end.line - to.line, ch: pos.ch};
+        var line = pos.line + code.length - (to.line - from.line) - 1;
+        var ch = pos.ch;
+        if (pos.line == to.line)
+          ch += code[0].length - (to.ch - (to.line == from.line ? from.ch : 0));
+        return {line: line, ch: ch};
       }
       var end;
       replaceRange1(code, from, to, function(end1) {