[RFAv6 0/3] Allow the user to define default args for aliases
Philippe Waroquiers
philippe.waroquiers@skynet.be
Sun May 24 18:53:50 GMT 2020
Ping ?
Thanks
Philippe
On Sat, 2020-05-16 at 19:19 +0200, Philippe Waroquiers via Gdb-patches wrote:
> Allow the user to define default args for user-defined aliases.
>
> This is version 6 of the patch series.
> Compared to the previous version:
> * it handles the comment of Simon that default args should only
> be available for user-defined aliases and not for GDB commands
> and GDB pre-defined aliases.
> As default args are now only for user-defined aliases,
> the 'show/set enable-default-args [on|off]' commands have been
> removed.
> * documentation changed accordingly.
> * help and apropos now shows the full definition of the aliases having
> default args.
>
> Previous versions handled the comments of Christian/Eli/Pedro/Tom/Simon.
>
> This patch series implements, tests and documents the following commands:
>
> set default-args ALIAS [DEFAULT-ARGS...]
> show default-args [ALIAS]
>
> It also changes the alias command to be:
> alias [-a] [--] ALIAS = COMMAND [DEFAULT-ARGS...]
>
>
> Using the above default-args commands and arguments, you can
> define default arguments for commands or define powerful aliases.
>
> For example:
>
> alias bt_ALL = backtrace -entry-values both -frame-arg all -past-main -past-entry -full
>
> defines the alias bt_ALL that will give as much information as possible
> in a backtrace.
>
> Default args can usefully be combined with the 'with' command, such as:
>
> Make "wLapPeu" an alias of 2 nested "with":
> alias wLapPeu = with language pascal -- with print elements unlimited --
>
> or have an alias pp10 to pretty print an expression with a maximum of
> 10 elements:
>
> alias pp10 = with print pretty -- with print elem 10 -- print
>
> This patch series also adds a completer for 'alias'.
>
> For what concerns changing 'alias -a' to 'alias -abbreviation":
> This can for sure be done (and be backward compatible). This can however
> be done as a separate patch (I still also need to do a similar change
> for the 'qcs' flags).
>
>
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