Re: keycodes

[Andrew DeFaria <Andrew@DeFaria.com>]

Matt Wozniski wrote:
> On Thu, Jan 15, 2009 at 1:05 AM, Andrew DeFaria wrote:
>   
>> Andy Koppe wrote:
>>     
>>> Andrew DeFaria wrote:
>>>       
>>>>>>  > "\e[1;5A": history-search-backward
>>>>>>  > "\e[1;5B": history-search-forward
>>>>>>
>>>>>> Perhaps I don't understand this 'bash' feature, but it doesn't seem to
>>>>>> work for me.
>>>>>>             
>>>>> Start typing a command, press Ctrl-Up, and it finds the previous line in
>>>>> the history that started like that.
>>>>>           
>>>> Why not simply type Ctrl-R then the first few letters of a command (or
>>>> some letters in the middle of a command). Works great! Requires no support
>>>> from any terminal emulator...
>>>>         
>>> Yes, obviously you can bind the history search to any key you like.
>>>       
>> The points were, since you seemed to have missed them, that 1) that's the
>> default binding for bash
>>     
>
> It's a default binding for bash that does something different than the
> suggested binding.  It's great that you can do both, but they're not
> the same.  I know of both, use both, and find history-search-backward
> and history-search-forward much more useful more of the time than
> reverse-search-history and forward-search-history.
>
>   
>> and 2) it doesn't require MinTTY, nor xterm, nor
>> any particular terminal emulator. IOW it works out of the box, in fact works
>> in Cygwin's bash Windows console window
>>     
>
> It works with all terminal emulators that are set up to send CTRL+R as
> the single byte 0x12 - nearly all do by default, but there's no reason
> they have to.  xterm can be configured to send CSI 27;5;114 ~
> instead.  Andy's suggestion works with all terminal emulators that
> send CSI 1;5 A for CTRL+UP - again, most do, but not all.  There's no
> difference between the two here, apart from one binding being default
> and the other being added with .inputrc.
>
>   
>> and does not even restrict you to
>> locating only the start of a command. All win, win, win situations as I see
>> it.
>>     
>
> The fact that it's "restricted" to only working at the start of the
> line is why it's more useful more of the time for me.  I sometimes
> want to find a command that contained 'foobar' as one of its arguments
> somewhere on the line - but, much more often, I want to find that
> cryptic ctags invocation, or that find command, etc.  If I know what
> the line begins with, then searching with CTRL+R just gives me false
> positives that I need to skip over.
>
> ~Matt
>   
Like I said - to each his own...
-- 
Andrew DeFaria <http://defaria.com>
Old dog still learning - please don't shoot yet


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