1. which directory?
Hello everybody,
So I write a little program and it is in my D:\euphoria\prog\ directory. I
want to
open a text file which I have also put in the same directory. I open my program
by clicking on it and it comes up in the editor, but when I run it, it can't
find my
text file unless I put in an explicit "chdir(D:\euphoria\prog\)" first. That is
ok for
me, but what about somebody who copies my program (and file) to "e:\wherever\ "
on their computer? I know I have downloaded programs from the users
contributions
page and they won't run because of this problem. Kinda frustratin'. If I ask
what
the current_dir() is, it says "D:euphoria\". Why isn't it my *real* current
directory?
JOHN
2. Re: which directory?
The norm is to use your application directory and append it to you path
for the file. So in VB one would use, App.path + "/filename.ext". I'm not real
familiar with Euphoria, so I assume you would use the current_dir()
function and append the filename.
On Tue, 15 Jan 2002, John McAdam wrote:
>
> Hello everybody,
> So I write a little program and it is in my D:\euphoria\prog\ directory. I
> want to
> open a text file which I have also put in the same directory. I open my
> program
> by clicking on it and it comes up in the editor, but when I run it, it can't
> find my
> text file unless I put in an explicit "chdir(D:\euphoria\prog\)" first. That
> is ok for
> me, but what about somebody who copies my program (and file) to "e:\wherever\
> "
> on their computer? I know I have downloaded programs from the users
> contributions
> page and they won't run because of this problem. Kinda frustratin'. If I ask
> what
> the current_dir() is, it says "D:euphoria\". Why isn't it my *real* current
> directory?
> JOHN
>
>
>
>
3. Re: which directory?
- Posted by tone.skoda at siol.net
Jan 15, 2002
Below is some code which will help you. Directory of application is saved in
command line.
-- returns file directory
-- example: "C:\dir\file.txt" returns "C:\dir"
global function get_file_directory (sequence fname)
integer c -- current char
for i = length (fname) to 1 by -1 do
c = fname [i]
if c = '\\' or c = '/' then
return fname [1 .. i - 1]
elsif c = '.' then
for j = i - 1 to 1 by -1 do
c = fname [j]
if c = '\\' or c = '/' then
return fname [1 .. j - 1]
end if
end for
return ""
end if
end for
return fname
end function
--/*
-- get_program_directory [Created on 30. September 2001, 15:48]
-- The 'get_program_directory' function returns directory where this program
which is run is.
-- It gets it from parsing command line.
--
-- RETURN VALUES
-- Program directory, string. Like this: "C:\Directory"
--
--*/
global function get_program_directory ()
--// Command line.
sequence cmd
--// Program path + name.
STRING program_full_path
--// Returned program directory
STRING program_directory
cmd = command_line ()
if length (cmd) >= 2 then --// Length of command line is long enough.
program_full_path = cmd [2]
program_directory = get_file_directory (program_full_path)
else --// Length of command line is too short.
error ("Can't get program directory from command line.")
program_directory = ""
end if
return program_directory
end function
--// This program's directory.
STRING Program_directory
--/*
-- get_program_file_full_name [Created on 30. September 2001, 15:51]
-- The 'get_program_file_full_name' function joins 'Program_directory' and
'file_name', so that it returns absolute file name.
--
-- PARAMETERS
-- 'file_name'
-- Only file name.
-- This file is assumed to be in directory where program is.
--
-- RETURN VALUES
-- Full absolute file name, with whole path.
--
--*/
function get_program_file_full_name (STRING file_name)
if equal (Program_directory, {}) = true then --// Program_directory is
{}.
return file_name
else --// Program_directory is NOT
{}.
return Program_directory & "\\" & file_name
end if
end function
---- Execute this code when program starts: ----
--// Full file name for crash file.
STRING crash_full_file_name
Program_directory = get_program_directory ()
crash_full_file_name = get_program_file_full_name ("ex.err")
crash_file (crash_full_file_name)
----- Original Message -----
From: "John McAdam" <johnmcadam at clix.pt>
To: "EUforum" <EUforum at topica.com>
Sent: Tuesday, January 15, 2002 5:55 PM
Subject: which directory?
>
> Hello everybody,
> So I write a little program and it is in my D:\euphoria\prog\ directory.
I want to
> open a text file which I have also put in the same directory. I open my
program
> by clicking on it and it comes up in the editor, but when I run it, it
can't find my
> text file unless I put in an explicit "chdir(D:\euphoria\prog\)" first.
That is ok for
> me, but what about somebody who copies my program (and file) to
"e:\wherever\ "
> on their computer? I know I have downloaded programs from the users
contributions
> page and they won't run because of this problem. Kinda frustratin'. If I
ask what
> the current_dir() is, it says "D:euphoria\". Why isn't it my *real*
current directory?
> JOHN
>
>
>
>
