Filtering escape character from expect buffer

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Old 03-24-2014
Filtering escape character from expect buffer

I have written an application in Tcl-Expect which spawns minicom and
sends and receives data via the serial port. Sometimes i see that the
application receives control characters along with human readable data.
A search on the internet tells me that the control characters are
nothing but the VT terminal codes. However i could not find a solution
to filter out the terminal codes.

I am attaching a sample of the expected buffer and the actual buffer.

Expected :-
Microsoft Windows [Version 6.2.9200](c) 2012 Microsoft Corporation. All rights reserved. C:\Windows\system32>

[1;1H[37m[40m [2;1H [3;1H [4;1H [5;1H [6;1H [7;1H [8;1H [9;1H [10;1H [11;1H [12;1H [13;1H [14;1H [15;1H [16;1H [17;1H [18;1H [19;1H [20;1H [21;1H [22;1H [23;1H [24;1H [1;1HMicrosoft Windows [Version 6.2.9200][2;1H(c) 2012 Microsoft Corporation. All rights reserved.[4;1HC:Windowssystem32>

Last edited by Franklin52; 03-24-2014 at 04:21 AM.. Reason: Please use code tags
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