On 7/25/20 12:21 PM, Daniel Molina wrote:
> Hi,
>
> I found some aspects of readline documentation that seem inconsistent to
> me and I wanted to share them.
>
> 1. The difference between backward-kill-line and unix-line-discard
> readline commands.
>
> Documentation states:
>
> backward-kill-line (C-x Rubout)
> Kill backward to the beginning of the line.
>
> unix-line-discard (C-u)
> Kill backward from point to the beginning of the
> line. The
> killed text is saved on the kill-ring.
>
> In both cases they kill from the point and killed text is saved in the
> kill-ring.
The difference is what happens with numeric arguments. Maybe that is what
should be added to the backward-kill-line description.
>
> 2. Default key sequences vs. emacs key bindings [the default].
>
> It is confusing to me that there are two defaults. Firstly, it can be read:
>
> EDITING COMMANDS
> The following is a list of the names of the commands and
> the default
> key sequences to which they are bound. Command names without
> an accom‐
> panying key sequence are unbound by default.
>
> On the other hand, emacs editing command are default:
>
> readline offers editing capabilities while the user is entering the
> line. By default, the line editing commands are similar to
> those of
> emacs. A vi-style line editing interface is also available.
>
> An explicit list of emacs commands is maintained and commands do not
> always coincide (both being valid defaults in practice). For example,
> instead of C-x Rubout for backward-kill-line, emacs has
>
> "C-XC-?" backward-kill-line
Rubout/DEL[ete]/C-? are the same key.
>
> 3. Key-bindings in the emacs/vi list are written with capital letters
> (C-A), but not in the section with the description (C-a).
It's a writing convention. The behavior doesn't differ. Are there places
where this convention is used inconsistently?
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
