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Learn Red ? Fundamentals of Red
book

Learn Red ? Fundamentals of Red

by Ivo Balbaert
May 2018
Beginner content levelBeginner
252 pages
6h 19m
English
Packt Publishing
Content preview from Learn Red ? Fundamentals of Red

Importing functions with do

Soon after starting a project, you will start getting a lot of functions, and you may ask, where should I put their code? You will likely want to have a compact main.red file, which starts your program and can call functions stored in other files.

Let's say one of these files is called useful-functions.red, and contains the functions fact from the previous section and the check function:

;-- see Chapter06/useful-functions.red:check: func [list] [    answer: "safe"    foreach l list [        if find l "--" [answer: "unsafe"]    ]    answer]

 What it does is not that important here. It goes through a list of names, and returns the safe string, but if any name in the list contains  --, check returns the unsafe string.

This is depicted ...

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Publisher Resources

ISBN: 9781789130706Supplemental Content