From 122a8095e40978a9c1b0449b60883ef4aea1fe4f Mon Sep 17 00:00:00 2001
From: Michael Jumper <mike.jumper@guac-dev.org>
Date: Mon, 2 Jun 2014 12:53:40 -0700
Subject: [PATCH] GUAC-718: Advance cursor by column width of echo'd
 characters.

---
 src/terminal/terminal_handlers.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/terminal/terminal_handlers.c b/src/terminal/terminal_handlers.c
index fd723676..4d795f4d 100644
--- a/src/terminal/terminal_handlers.c
+++ b/src/terminal/terminal_handlers.c
@@ -28,6 +28,7 @@
 #include "terminal_handlers.h"
 
 #include <stdlib.h>
+#include <wchar.h>
 
 /**
  * Response string sent when identification is requested.
@@ -46,6 +47,8 @@
 
 int guac_terminal_echo(guac_terminal* term, unsigned char c) {
 
+    int width;
+
     static int bytes_remaining = 0;
     static int codepoint = 0;
 
@@ -206,8 +209,12 @@ int guac_terminal_echo(guac_terminal* term, unsigned char c) {
                     term->cursor_col,
                     codepoint);
 
+            width = wcwidth(codepoint);
+            if (width < 0)
+                width = 1;
+
             /* Advance cursor */
-            term->cursor_col++;
+            term->cursor_col += width;
 
     }