Rot13 in Tcl

Welcome to the Rot13 in Tcl page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

proc usage {} {
    puts "Usage: please provide a string to encrypt"
    exit 1
}

if {$argc != 1} { usage }
set input [lindex $argv 0]
if {$input eq ""} { usage }

proc rot13 {text} {
    set upper "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    set lower "abcdefghijklmnopqrstuvwxyz"

    set map {}

    for {set i 0} {$i < 26} {incr i} {
        lappend map [string index $upper $i] [string index $upper [expr {($i+13)%26}]]
        lappend map [string index $lower $i] [string index $lower [expr {($i+13)%26}]]
    }

    return [string map $map $text]
}

puts [rot13 $input]

Rot13 in Tcl was written by:

• Ștefan-Iulian Alecu

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.