The Racket Reference has a section on the notation used in documentations:
https://docs.racket-lang.org/reference/notation.html
But yes, what you said is correct: you are forced to specify every prior
optional positional argument. This is why I think optional positional
arguments are bad in
Where is the documentation that describes how to interpret the racket
syntax?
For example:
(get-file (message parent directory ...)) ;where the arg list of options
are optional but if included are positional meaning that to specify an
argument such as 'directory' means that the previous 2 args
Of course, I meant the third, not fourth. Oops!
On Thu, 10 Jun 2021, Crystal Jacobs wrote:
Looking at the docs:
https://docs.racket-lang.org/gui/Windowing_Functions.html?q=get-file#%28def._%28%28lib._mred%2Fmain..rkt%29._get-file%29%29
It seems like the second argument is the message shown
Looking at the docs:
https://docs.racket-lang.org/gui/Windowing_Functions.html?q=get-file#%28def._%28%28lib._mred%2Fmain..rkt%29._get-file%29%29
It seems like the second argument is the message shown in the title of the
pop-up window. You can include a path as the fourth argument:
(get-file
I want the file manipulation popup in racket/gui to display a specified
dir, not the current directory.
Is that possible?
(get-file #f f) ;displays the popup showing the current directory in frame
f.
I expected the following to display the popup showing the specified
directory but it does not:
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