Working with Packages

[Yves Cloutier]

Hello,

Would it be possible to share abit more on how to properly create and use packages?

For example I have created a file String.icn with package definition:

package String
procedure split(s)
  return if marker := find(" ", s) then {
    [s[1:marker]] ||| split(s[marker+1:0])
  }
  else {
    [s]
  }
end 

What are the steps to import this into a program? I have compiled it first, then compiled my main program which has:

import String

However I get an error that the package doesnt exist.

Any tips would be great.

Regards

[Jafar]

I'm assuming your main program and the package are in the same directory, correct? if that is the case then it should work by default without having to set IPATH and LAPTH. if it doesn't then we ay have a bug. Set your Unicon's environment variables IPATH and LPATH to include the current directory and try to compoile your main program again.

[Yves Cloutier]

Jafar, yes correct, all my files are in the same directory.

First I did:

unicon String.icn

followed by:

packagetest.icn

and get the following:

D:\Dev\Unicon>unicon String.icn
Parsing String.icn: String.icn is already in Package string
..split is already in Package string

d:\apps\Unicon\bin\icont.exe -c   -O String.icn C:\Users\NV7547\AppData\Local\Temp\uni13967197
Translating:
String.icn:
  string__split
No errors
d:\apps\Unicon\bin\icont.exe  String.u
Linking:

D:\Dev\Unicon>unicon packagetest.icn
Parsing strings.icn: ...
d:\apps\Unicon\bin\icont.exe -c   -O packagetest.icn C:\Users\NV7547\AppData\Local\Temp\uni18337549
Translating:
packagetest.icn:
  sum
  main
No errors
d:\apps\Unicon\bin\icont.exe  packagetest.u
Linking:
icont: cannot resolve reference to file 'D:/Dev/Unicon/String.u'

I am usually on Linux. But for the while being Im on Windows 10. Its been a while since using Windows...Could you jog my memory on how to set path vars in Windows?

[Jafar]

I will give that a test when I get a chance.

to set the two variable on windows do

set IPATH=.
set LPATH=.

and then continue your commands

[Jafar]

Yves,
Just noticed! you compiled your package file with

   unicon String.icn

and not

   unicon -c String.icn

The first command without the -c will produce an executable, not a link-able module/package. That is why you get :

   icont: cannot resolve reference to file 'D:/Dev/Unicon/String.u'

The file isn't there! :)

[Yves Cloutier]

Jafar, uncon -c did the trick! That was the issue.