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Question
Are arrow keys supported in send/expect tcl8.3?
I have a device that I need to control. Unfortunately it is a menu interface that is only navigatible using arrow keys (up and down arrow.) I can not find any ascii codes for arrow keys.
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by: jmcgPosted on 2008-09-01 at 09:47:56ID: 22361480
The ASCII sequences sent for arrow keys depend on the type of terminal being emulated. The most common emulation is ANSI, based on the old VT-100 terminal; up-arrow is Esc[A , down-arrow is Esc[B, etc.
There's a table of these escape sequences at:
http://ascii-table.com/ans
A difficulty sometimes comes at the beginning of the session where you may have to field a query from the app to find out what sort of terminal is being emulated. I found that using "autoexpect" is the best way to capture this initial interaction.