Dear Juergen, I think there is a significant difference in philosophy here. I think a history mechanism should keep a history of what _I_ type, but _not_ what is output by the system. If I were to type in a new function, it should be added to history. But if I list an existing function, it is displaying _output_ and _not_ what I am typing. Having the system add its own output to history makes the history nearly unusable for me because I have to scroll through meaningless history in order to get to the last think I typed - in order to try that again. This is a significant issue IMO.
The rule should be "all user input goes into history" and "no system output goes into history". In the example I gave, I input the line to request the system to list the function. The display of the function was system output and nothing I typed. Thanks. Blake On Sat, Sep 13, 2014 at 5:21 AM, Juergen Sauermann < juergen.sauerm...@t-online.de> wrote: > Hi Blake, > > this is actually on purpose. The reason is replay of (or cut-and-paste > from) history files. > > Previously (libreadline) only the opening of the function (∇test) would be > stored in the history. > The subsequent lines would be eaten by the ∇-editor until the function was > closed. > > The new history outputs the entire function (so what you see in the > )history is the entire function > definition which is only by chance similar to the output of the [⎕] > command: > > > > > > > > > > > > > > * ∇foo [1] 11 [2] 22 [3] 33 [4] ∇ )history ∇foo > ∇foo [1] 11 [2] 22 [3] 33 ∇* > > Looking at the above it seems like the first *∇foo* in the history should > be removed. > > An interesting question is if, for example,* ∇foo[⎕]∇ *should be handled > differently than *∇**foo* > That sounds reasonable at first sight but then *∇foo[⎕]∇ *would be > differrent from > > *∇foo* > *[⎕]∇* > > Another approach could be to not include function definitions that don't > change the definition. > But that would break > > * )LOAD foo_ws* > * ∇foo[⎕]∇* > > /// Jürgen > > > On 09/12/2014 10:28 PM, Blake McBride wrote: > > Greetings, > > Create a function like this: > > ∇test[⎕]∇ > ∇ > [0] test > [1] abc > [2] def > [3] ghi > ∇ > > > Then type: > > 45 > 45 > 55 > 55 > ∇test[⎕]∇ > [displays function] > > So, the last thing you typed was the _single_ line to display the > function. If you hit the up-arrow key you would expect to see: > > ∇test[⎕]∇ > 55 > 45 > > but instead, somehow, the _output_ of the display function became > _input_ history. Not right. > > Thanks. > > Blake > > >
