1. Suggestion for dir()
Instead of returning -1 if the file is not found,
isn't it better to return {} ?
I have had many errors, just because I forgot to check if it is an
atom or not, in such lines:
dd = dir("c:\\*.bmp") --where no *.bmp files on c:\
for i = 1 to length(dd) do
something("c:\\" & dd[i][D_NAME])
end for
and it will crash on length().
2. Re: Suggestion for dir()
That would break quite a few programs.
Why not edit your version of file.e, and change this:
global function dir(sequence name)
-- returns directory information, given the name
-- of a file or directory. Format returned is:
-- {
-- {"name1", attributes, size, year, month, day, hour, minute, second},
-- {"name2", ... },
-- }
return machine_func(M_DIR, name)
end function
to this:
global function dir(sequence name)
-- returns directory information, given the name
-- of a file or directory. Format returned is:
-- {
-- {"name1", attributes, size, year, month, day, hour, minute, second},
-- {"name2", ... },
-- }
object aku_saya
aku_saya = machine_func(M_DIR, name)
if atom(aku_saya) then
aku_saya = {}
end if
return aku_saya
end function
Or is there some reason that this is undesirable for you?
On Sat, May 31, 2003 at 09:20:09PM +0700, aku saya wrote:
>
>
> Instead of returning -1 if the file is not found,
> isn't it better to return {} ?
>
> I have had many errors, just because I forgot to check if it is an
> atom or not, in such lines:
>
> dd = dir("c:\\*.bmp") --where no *.bmp files on c:\
> for i = 1 to length(dd) do
> something("c:\\" & dd[i][D_NAME])
> end for
>
> and it will crash on length().
>
>
>
> TOPICA - Start your own email discussion group. FREE!
>
>
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3. Re: Suggestion for dir()
you wouldn't even need to alter file.e, just remake the functions, like
this:
function old_dir(sequence path)
return dir(path)
end function
function dir(sequence path)
object dd
dd = old_dir(path)
if atom(dd) then
return {}
else
return dd
end if
end function
~Greg
4. Re: Suggestion for dir()
Hello aku saya:
> Wow, thanks very much Greg and Jbrown!
> I didn't realize that dir()
> is not a built-in routine.
You can do that trick below
with *built-in routines* too.
You can not rename this way *just key words*:
for, to, global, function ... etc - blue words,
not magenta - about 30 English words.
See for example my "Russian Toolkit"
in The Archive.
There are all Russian analogs for
built-in and standard RDS lib routines
for those interpreters with non-limited
alphabet. In that package, there is ed.ex
rewrote in Russian. Try that mumbo/jumbo,
works ok for me.
I asked Rob for the loading keywords
(Russian, Malay, Chinese ...) years ago,
he doesn't want, exquisite English boy 
Regards,
Igor Kachan
kinz at peterlink.ru
> G> you wouldn't even need to alter file.e,
> G> just remake the functions, like
> G> this:
>
> G> function old_dir(sequence path)
> G> return dir(path)
> G> end function
>
> G> function dir(sequence path)
> G> object dd
> G> dd = old_dir(path)
> G> if atom(dd) then
> G> return {}
> G> else
> G> return dd
> G> end if
> G> end function
>
> G> ~Greg
