1. Changing file types
Hi,
I am new to the list, and new to Euphoria. It is great to see a
language that is easy to pick up and powerful at the same time. My
problem is that I am going to be using some new graphical software, and
the old software saved my files as a .sci type. What I want to do is to
change all of those files into a .epu type. I have so many that I was
hoping I could write a program to get the job done. My question is: Is
it possible to do? I already know that just by changing the extension
the file will work in my new software. Also is there any euphoria
programs already written to do this?
Thanks
Michael
2. Re: Changing file types
Hi Michael,
if you have Windows ME or Windows 2000, you can do this is a DOS window.
Enter the command below in the directory where the .sci files are...
for %d in (*.sci) do @move "%~Pnxd" "%~Pnd.epu"
If you have older versions of DOS/Windows then you can still do this...
Step 1)
If a DOS window use this command in the directory of the .sci files.
for %d in (*.sci) do @echo >>x.bat move "%d" "%dX"
Step 2)
Use your favourite editor and edit x.bat.
Change all '.sciX' into '.epu'
Save the x.bat file
Step 3)
Run the x.bat file in the same directory.
-----------
cheers,
Derek Parnell
Senior Design Engineer
Global Technology Australasia Ltd
dparnell at glotec.com.au
---------------------
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3. Re: Changing file types
Howdy, and welcome to the Grand Euphorium, Michael.
> I am new to the list, and new to Euphoria. It is great to see a
> language that is easy to pick up and powerful at the same time. My
> problem is that I am going to be using some new graphical software, and
> the old software saved my files as a .sci type. What I want to do is to
> change all of those files into a .epu type. I have so many that I was
> hoping I could write a program to get the job done. My question is: Is
> it possible to do? I already know that just by changing the extension
> the file will work in my new software. Also is there any euphoria
> programs already written to do this?
> Thanks
> Michael
Well, in Euphoria, you can use dir() to get names of all the files in
the directory ... you can look up the specifics of that command in the
Euphoria Standard Library documentation. Once you have the file name,
you can do something like this ...
Remember that I'm coding this off the cuff, so it is very untested, but
should give you an idea.
-- start of code
-- This function will replace the file's current extension with the
extension provided in sNewExtension.
-- Will return the file name with the new extension if successful,
otherwise an empty sequence.
function changeExtension(sequence sFileName, sequence sNewExtension)
sequence
sNewName
integer
iMatchLoc
-- Safety check on the parameters
if (not length(sFileName)) or (not length(sNewExtension)) then
return {}
end if
-- Initialize our new file name variable
sNewName = {}
-- Turn the filename backwards, so that "test.sci" would become
"ics.tset"
sFileName = reverse(sFileName)
-- Find the "." that marks the beginning of the extension.
iMatchLoc = find('.', sFileName)
-- At this point there could either be an extension on the file
name, or not. We deal with both cases and
-- load the reversed file name (without extension) into sNewName.
if iMatchLoc = 0 then
sNewName = sFileName
else
sNewName = sFileName[iMatchLoc .. length(sFileName)]
end if
-- Flip the file name around again.
sNewName = reverse(sNewName)
-- If the file was "test.sci", then the value of sNewName is now
"test." Now we just add the extension.
sNewName &= sNewExtension
-- If sNewExtension was "epu", then we now have "test.epu." So our
function needs to return that.
return sNewName
end function
-- end untested code.
There you go. Remember that this code might have some bugs, and not
check for certain situations, however it will give you the gist of what
has to be done.
Travis Beaty
Claude Texas (for another 3 weeks or so)
4. Re: Changing file types
Hello,
> for %d in (*.sci) do @move "%~Pnxd" "%~Pnd.epu"
> for %d in (*.sci) do @echo >>x.bat move "%d" "%dX"
whats wrong with the DOS command:
ren *.sci *.epu
I haven't actually tested this but it makes sense to me.
later,
Lewis Townsend
5. Re: Changing file types
Thanks Lewis,
I didn't know that. I've re-read the docs on REN and it doesn't really
suggest you can do that but it works.
----- Original Message -----
From: "Lewis Townsend" <keroltarr at HOTMAIL.COM>
To: "EUforum" <EUforum at topica.com>
Subject: Re: Changing file types
>
>
> Hello,
>
>
> > for %d in (*.sci) do @move "%~Pnxd" "%~Pnd.epu"
> > for %d in (*.sci) do @echo >>x.bat move "%d" "%dX"
>
> whats wrong with the DOS command:
>
> ren *.sci *.epu
>
> I haven't actually tested this but it makes sense to me.
>
> later,
> Lewis Townsend
>
>
>
>
6. Re: Changing file types
Hello Derek,
>Thanks Lewis,
>I didn't know that. I've re-read the docs on REN and it doesn't really
>suggest you can do that but it works.
Cool, actually it surprises me a little that it works without
modification. I know that the following senario doesn't always
work.
files in current directory
file01.bmp
file02.bmp
file03.bmp
...
fileXX.bmp
ren file??.bmp pic??.bmp
The reason this doesn't work is becuase "file" and "pic" arent the same
length. If you want it to work you will have to use the same length names:
ren file??.bmp pict??.bmp
Also this doesn't work if the names are long filenames. Not unless your dos
version supports lfns.
later,
Lewis Townsend
>
