Script Library: iota.r

Script Library: 1240 scripts

iota.r

REBOL [
    Title: "Iota"
    Date: 3-Jul-2002
    Name: 'Iota
    Version: 1.0.0
    File: %iota.r
    Author: "Andrew Martin"
    Purpose: {Makes a block containing a range of values, from Start to End.}
    eMail: %Al--Bri--xtra--co--nz
    Web: http://valley.150m.com
    Example: [
    iota 1 10 
    iota/by -4 10 2 
    iota #"A" #"F"
]
    library: [
        level: 'beginner 
        platform: none 
        type: 'tool 
        domain: none 
        tested-under: none 
        support: none 
        license: none 
        see-also: none
    ]
]

Iota: function [
    {Makes a block containing a range of values, from Start to End.}
    [catch throw]
    Start [number! series! money! time! date! char!] "Starting value."
    End [number! series! money! time! date! char!] "Ending value."
    /By Bump [number! money! time! char!] "Amount to skip each time."
    ][
    Block
    ][
    throw-on-error [
        all [
            none? Bump
            Bump: 1
            ]
        Block: make block! 100
        for I Start End Bump [
            insert tail Block I
            ]
        Block
        ]
    ]

Notes

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