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HelloWorldPackage.md

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The "Hello World" Package

This is a "Hello World" example on how to build your first package with help of the SAS Packages Framework.

We will generate a HelloWorld package.

Follow the step by step instruction below.

Step 1. Create a folder for the framework e.g., /home/<myUserName>/SASpackages or C:/SASpackages

Step 2. Run the following code to install The SAS Packages Framework in the folder you created in the Step 1.

filename packages "<put/folder/from/the/step/one/here>";
filename SPFinit url "https://raw.githubusercontent.com/yabwon/SAS_PACKAGES/main/SPF/SPFinit.sas";
%include SPFinit;
%installPackage(SPFinit)

Check out the log to verify if the Step 2. was successful. If it was - then continue.

Step 3. Create a folder for the content of the package we will generate e.g., /home/<myUserName>/HelloWorldPackage or C:/HelloWorldPackage

Step 4. Inside the directory from the Step 3. create two sub-folders: 01_formats and 02_macros. Remember to use lower case letters only!

Step 5. Inside the 01_formats folder create a helloworldformat.sas file. Remember to use lower case letters in the file name. Copy-paste below code into that file:

/*** HELP START ***//*
 This is a help info for the `HelloWorldFormat.` format.
 
 Category *other* is marked with exclamation mark (`!`).
*//*** HELP END ***/

value HelloWorldFormat
  1 = " Hello"
  2 = " SAS"
  3 = " Packages"
  4 = " World"
  other = "!"
;

Step 6. Inside the 02_macros folder create a helloworldmacro.sas file. Remember to use lower case letters in the file name. Copy-paste below code into that file:

/*** HELP START ***//*
 This is a help info for the `%helloWorldMacro()` macro.
 
 Macro has the following parameter(s):
 - `n` - *Required*, provides number of loop iterations.
 
*//*** HELP END ***/

%macro HelloWorldMacro(n);
  data _null_;
    do i = 1 to &n.;
      put i HelloWorldFormat. @; 
    end;
  run;
%mend HelloWorldMacro;

Step 7. Inside the directory from the Step 3. create a description.sas file. Remember to use lower case letters in the file name. Copy-paste below text into that file, adjust lines 5 and 6:

Type: Package
Package: helloWorld
Title: My Hello World SAS package.
Version: 1.0
Author: <myFirstname> <myLastname> ([email protected])
Maintainer: <myFirstname> <myLastname> ([email protected])
License: MIT
Encoding: UTF8

Required: "Base SAS Software"

DESCRIPTION START:
### My "Hello World" SAS package ###

The "Hello World" is my first SAS package and 
for sure it will not be the last package one!

Using packages is a good idea!
DESCRIPTION END:

Step 8. Execute the following code and check the log to read the %generatePackage() macro help info.

%generatePackage()

Step 9. Execute the following code using the folder from the Step 3. and check the log to see how the process of package generation went.

%generatePackage(
  filesLocation=<put/folder/from/the/step/three/here>
 ,markdownDoc=1
)

Step 10. See the information in the output window and in the log. The WARNING:[License] No license.sas file provided, default (MIT) licence file will be generated. can be ignored.

Step 11. Check the directory from the Step 3. and look for the helloworld.zip package file and helloworld.md documentation file.

Step 12. Start a new SAS session, run the following code, and investigate the log:

filename packages ("<put/folder/from/the/step/one/here>" "<put/folder/from/the/step/three/here>");
%include packages(SPFinit.sas);

%loadPackage(HelloWorld)

%HelloWorldMacro(7)

Congratulations!! You've just created your first HelloWorld package.

Now you are ready to do smome more advanced work.

  • Read the My First SAS Package: A How-To - Paper 1079-2021 article, available at communities.sas.com here (video included) or locally here, describing the proces of a package creation with more advanced example and technical details.

  • Go to "bare metal" and read the SAS Packages - The Way to Share (a How-To) - Paper 4725-2020 - extended version - an article which contains all technical details on how the SAS Packages Framework works and how to use it (both as a develope and as a user).

The SAS Packages Framework (short) documetation to quickly see macros options and parametera.