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radix.js
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radix.js
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//
// radix
// Converts numbers between different numerical systems
//
// Copyright (c) 2012, Ildar Shaimordanov
//
var cArgs = WScript.Arguments;
var nArgs = WScript.Arguments.Named;
var uArgs = WScript.Arguments.Unnamed;
if ( cArgs.length == 0 || nArgs.Exists('H') || nArgs.Exists('HELP') ) {
WScript.Echo([
WScript.ScriptName + ' numbers [/I:radix] [/O:radix]',
'',
'/I Input radix',
'/O Output radix',
'',
'Converts numbers between different numerical systems.',
'A radix can be one of 2 to 36. The default value is 10.'
].join('\n'));
WScript.Quit();
}
function parseRadix(value)
{
value = nArgs.item(value) || 10;
if ( isNaN(value) || value < 2 || value > 36 ) {
throw new Error('Illegal radix: "' + value + '".');
}
return value;
};
var iBase = parseRadix('I');
var oBase = parseRadix('O');
var values = uArgs;
if ( values.length == 0 ) {
values = [];
while ( ! WScript.StdIn.AtEndOfStream ) {
values.push(WScript.StdIn.ReadLine());
}
values.item = function(i)
{
return this[i];
};
}
for (var r, i = 0; i < values.length; i++) {
r = values.item(i);
r = parseInt(r, iBase);
r = Number(r).toString(oBase);
WScript.StdOut.WriteLine(r);
}