[U-Boot] [PATCH 05/15] common/main.c: Fix function readline

[Pali Rohár]

On Friday 06 January 2012 15:15:29 Mike Frysinger wrote:
> On Sunday 18 December 2011 16:34:01 Pali Rohár wrote:
> >  * Ignore ANSI escape codes for moving cursor, which are generated by
> > 
> > keyboard
> 
> this probably should be behind an appropriate CONFIG knob.  i don't think
> this is relevant to serial users (which are the majority of boards).
> -mike

I think this is also relevant to serial console too. I tried serial console 
(over USB) with Nokia N900 on computer (ANSI terminal) and if I pressed cursor 
key (UP/DOWN/LEFT/RIGHT) it moved cursor. But in readline function buffer was 
stored ANSI sequence. So when I pressed ENTER, u-boot tried to execute that 
buffer and showed me error. But it showed error message something like unknown 
command <ansi_seq>. ansi_seq was recognized in ansi terminal on computer and 
it garbaged output. (for example if asn_seq was move up, error message 
continued on previous line...)

This patch ignore ansi codes which can be generated by curosor keys, so there 
will not be that bad error messages...

-- 
Pali Rohár
pali.rohar at gmail.com
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