Rebol3 Code Examplex

Rebol [
    title: "Rosetta code: Quine"
    file:  %Quine.r3
    url:    https://rosettacode.org/wiki/Quine
    purpose: {
        A Rebol quine - a program that outputs its own source code
        This demonstrates self-referential code and metaprogramming concepts
    }
]

q: [                        ;; Define q as a block containing the program logic
    print [                 ;; Print function to output the result
        "Rebol [] q:"       ;; First part: literal string for the header and variable declaration
        mold q              ;; Second part: convert the block q back to its source representation
        "do q"              ;; Third part: literal string for the execution command
    ]
] 

do q                        ;; Execute the block q, which prints the entire program