File exists

RM richmondmathewson at gmail.com
Sat Apr 2 05:03:58 EDT 2016


Naively I tried this in a button:

on mouseUp
    if exists(file "HereWeGo.txt") then
       open file "HereWeGo.txt" for write
    else
       put "no such file"
       end if
end mouseUp

AND the thing didn't work because 'exists' only works for objects within 
Livecode.

BUT this seems a reasonable way to check for a file's existence:

on mouseUp
       read from file "HereWeGo.txt" for 1 line
       if it is empty then
          put "no such file"
          end if
end mouseUp

Richmond.

On 2.04.2016 11:48, JB wrote:
> If I open a file for read or write and the file does
> not exist it will be created.  Is there a way to see
> if the file exists before opening it?  I do not want
> a file to be created if it does not exist.  I guess I
> could check the creation date and if it was just
> created then delete it but I was wondering if there
> is a better way.
>
> JB
>
>





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