How to resolve the algorithm Check that file exists step by step in the Factor programming language

Published on 12 May 2024 09:40 PM

#Factor

How to resolve the algorithm Check that file exists step by step in the Factor programming language

Table of Contents

Problem Statement
Step by Step Solution
Sourcecode

Problem Statement

Verify that a file called input.txt and a directory called docs exist.

This should be done twice:

Optional criteria (May 2015): verify it works with:

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Check that file exists step by step in the Factor programming language

Source code in the factor programming language

: print-exists? ( path -- )
    [ write ": " write ] [ exists? "exists." "doesn't exist." ? print ] bi ;

{ "input.txt" "/input.txt" "docs" "/docs" } [ print-exists? ] each

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