Re: Behaviour of {beginning,end}-of-buffer-or-history

[Bart Schaefer <schaefer@brasslantern.com>]

On Jun 1,  9:57pm, Bernhard Tittelbach wrote:
}
} I find it odd that {beginning,end}-of-buffer-or-history jumps to the 
} beginning/end of the history and not to the beginning/end of the line
} if called on a single-line buffer

The confusion is with the connotation of "beginning".

In the case of this particular widget, it means "anywhere on the first
line", which for a single-line buffer is ... anywhere.  This function
happens to be in the class of full-line-motions rather than character-
position-motions, despite that not being obvious from the name.

You'll note if you pay close attention that when it does beginning-of-
history, it often jumps to the end of the first history entry; if the
first history entry is a multi-line buffer it'll cycle between the
beginning and the end of that buffer.
 
} Jumping to the beginning/end of a line in a multi-line buffer
} is just an extra my function does, and not somewhere I think
} {beginning,end}-of-buffer-or-history
} should do (it's name does not imply any such functionality :)

If you care to travel back in time 20 years or so you can take that
up with Paul Falstad. :-)

Meanwhile ... I think there's an easier way than whatever that is
you're doing with buflines and cur_array ...

beginning-or-end-of-somewhere() {
 local hno=$HISTNO
 zle .${WIDGET:s/somewhere/line-hist/} "$@"
 if (( HISTNO != hno )); then
   zle .${WIDGET:s/somewhere/buffer-or-history/} "$@"
 fi
}
zle -N beginning-of-somewhere beginning-or-end-of-somewhere
zle -N end-of-somewhere beginning-or-end-of-somewhere