From c07edd90f5bfb4edb98b57e76e56742e08142b91 Mon Sep 17 00:00:00 2001
From: Fedor Indutny <fedor.indutny@gmail.com>
Date: Fri, 9 Dec 2011 15:24:15 +0600
Subject: [PATCH] preserve cursor pos

* configurable via .prompt()'s preserveCursor argument (false by default)
---
 lib/_debugger.js | 2 +-
 lib/readline.js  | 4 ++--
 lib/repl.js      | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/_debugger.js b/lib/_debugger.js
index b0fb61c..a97eca1 100644
--- a/lib/_debugger.js
+++ b/lib/_debugger.js
@@ -867,7 +867,7 @@ Interface.prototype.childPrint = function(text) {
   }).map(function(chunk) {
     return '< ' + chunk;
   }).join('\n'));
-  this.repl.displayPrompt();
+  this.repl.displayPrompt(true);
 };
 
 // Errors formatting
diff --git a/lib/readline.js b/lib/readline.js
index a87ba1e..de484d3 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -125,9 +125,9 @@ Interface.prototype.setPrompt = function(prompt, length) {
 };
 
 
-Interface.prototype.prompt = function() {
+Interface.prototype.prompt = function(preserveCursor) {
   if (this.enabled) {
-    this.cursor = 0;
+    if (!preserveCursor) this.cursor = 0;
     this._refreshLine();
   } else {
     this.output.write(this._prompt);
diff --git a/lib/repl.js b/lib/repl.js
index 3a5ac43..2c3baeb 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -282,11 +282,11 @@ REPLServer.prototype.resetContext = function(force) {
   this.context = context;
 };
 
-REPLServer.prototype.displayPrompt = function() {
+REPLServer.prototype.displayPrompt = function(preserveCursor) {
   this.rli.setPrompt(this.bufferedCommand.length ?
                  '...' + new Array(this.lines.level.length).join('..') + ' ' :
                  this.prompt);
-  this.rli.prompt();
+  this.rli.prompt(preserveCursor);
 };
 
 
-- 
2.7.4