mirror of
https://codeberg.org/streams/streams.git
synced 2024-09-20 00:35:30 +00:00
move hexit to addons where it belongs
This commit is contained in:
parent
359814eee7
commit
c4fc9a9cf6
4 changed files with 1 additions and 185 deletions
|
@ -1,3 +0,0 @@
|
|||
url: $baseurl/hexit
|
||||
name: Hexit
|
||||
photo: $baseurl/app/hex.png
|
BIN
app/hex.png
BIN
app/hex.png
Binary file not shown.
Before Width: | Height: | Size: 12 KiB |
181
mod/hexit.php
181
mod/hexit.php
|
@ -1,181 +0,0 @@
|
|||
<?php
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
function hexit_content(&$a) {
|
||||
|
||||
|
||||
$o .= <<< EOT
|
||||
|
||||
<script type="text/javascript">
|
||||
/**
|
||||
* A function for converting hex <-> dec w/o loss of precision.
|
||||
*
|
||||
* The problem is that parseInt("0x12345...") isn't precise enough to convert
|
||||
* 64-bit integers correctly.
|
||||
*
|
||||
* Internally, this uses arrays to encode decimal digits starting with the least
|
||||
* significant:
|
||||
* 8 = [8]
|
||||
* 16 = [6, 1]
|
||||
* 1024 = [4, 2, 0, 1]
|
||||
*/
|
||||
|
||||
// Adds two arrays for the given base (10 or 16), returning the result.
|
||||
// This turns out to be the only "primitive" operation we need.
|
||||
function add(x, y, base) {
|
||||
var z = [];
|
||||
var n = Math.max(x.length, y.length);
|
||||
var carry = 0;
|
||||
var i = 0;
|
||||
while (i < n || carry) {
|
||||
var xi = i < x.length ? x[i] : 0;
|
||||
var yi = i < y.length ? y[i] : 0;
|
||||
var zi = carry + xi + yi;
|
||||
z.push(zi % base);
|
||||
carry = Math.floor(zi / base);
|
||||
i++;
|
||||
}
|
||||
return z;
|
||||
}
|
||||
|
||||
// Returns a*x, where x is an array of decimal digits and a is an ordinary
|
||||
// JavaScript number. base is the number base of the array x.
|
||||
function multiplyByNumber(num, x, base) {
|
||||
if (num < 0) return null;
|
||||
if (num == 0) return [];
|
||||
|
||||
var result = [];
|
||||
var power = x;
|
||||
while (true) {
|
||||
if (num & 1) {
|
||||
result = add(result, power, base);
|
||||
}
|
||||
num = num >> 1;
|
||||
if (num === 0) break;
|
||||
power = add(power, power, base);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
function parseToDigitsArray(str, base) {
|
||||
var digits = str.split('');
|
||||
var ary = [];
|
||||
for (var i = digits.length - 1; i >= 0; i--) {
|
||||
var n = parseInt(digits[i], base);
|
||||
if (isNaN(n)) return null;
|
||||
ary.push(n);
|
||||
}
|
||||
return ary;
|
||||
}
|
||||
|
||||
function convertBase(str, fromBase, toBase) {
|
||||
var digits = parseToDigitsArray(str, fromBase);
|
||||
if (digits === null) return null;
|
||||
|
||||
var outArray = [];
|
||||
var power = [1];
|
||||
for (var i = 0; i < digits.length; i++) {
|
||||
// invariant: at this point, fromBase^i = power
|
||||
if (digits[i]) {
|
||||
outArray = add(outArray, multiplyByNumber(digits[i], power, toBase), toBase);
|
||||
}
|
||||
power = multiplyByNumber(fromBase, power, toBase);
|
||||
}
|
||||
|
||||
var out = '';
|
||||
for (var i = outArray.length - 1; i >= 0; i--) {
|
||||
out += outArray[i].toString(toBase);
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
function decToHex(decStr) {
|
||||
var hex = convertBase(decStr, 10, 16);
|
||||
return hex ? '0x' + hex : null;
|
||||
}
|
||||
|
||||
function hexToDec(hexStr) {
|
||||
if (hexStr.substring(0, 2) === '0x') hexStr = hexStr.substring(2);
|
||||
hexStr = hexStr.toLowerCase();
|
||||
return convertBase(hexStr, 16, 10);
|
||||
}
|
||||
|
||||
|
||||
|
||||
function str_or_null(x) {
|
||||
return x === null ? 'null' : x;
|
||||
}
|
||||
|
||||
// "1.234e+5" -> "12340"
|
||||
function expandExponential(x) {
|
||||
var pos = x.indexOf("e");
|
||||
if (pos === -1) pos = x.indexOf("E");
|
||||
if (pos === -1) return x;
|
||||
|
||||
var base = x.substring(0, pos);
|
||||
var pow = parseInt(x.substring(pos + 1), 10);
|
||||
if (pow < 0) return x; // not supported.
|
||||
|
||||
var dotPos = base.indexOf('.');
|
||||
if (dotPos === -1) dotPos = base.length;
|
||||
|
||||
var ret = base.replace('.', '');
|
||||
while (ret.length < dotPos + pow) ret += '0';
|
||||
return ret;
|
||||
}
|
||||
|
||||
function boldDifference(correct, actual) {
|
||||
for (var i = 0, j = 0; i < correct.length && j < actual.length; i++, j++) {
|
||||
if (correct[i] !== actual[j]) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (j < actual.length) {
|
||||
return actual.substring(0, j) + '<b>' + actual.substring(j) + '</b>';
|
||||
} else {
|
||||
return actual;
|
||||
}
|
||||
}
|
||||
|
||||
function convert() {
|
||||
var input = document.getElementById("in").value;
|
||||
if (input) {
|
||||
var aHex = str_or_null(decToHex(input));
|
||||
var aDec = str_or_null(hexToDec(input));
|
||||
var bHex = '0x' + (parseInt(input, 10)).toString(16);
|
||||
var bDec = "" + expandExponential("" +parseInt(input, 16));
|
||||
|
||||
var html = '<p></p><p>To Decimal(' + input + ') = ' + aDec + '</p>';
|
||||
html += '<p>To Hex(' + input + ') = ' + aHex + '</p>';
|
||||
document.getElementById('result').innerHTML = html;
|
||||
}
|
||||
}
|
||||
convert();
|
||||
|
||||
|
||||
</script>
|
||||
|
||||
<h2>Hexit</h2>
|
||||
|
||||
<p>Type in a hex or decimal string:</p>
|
||||
<input type="text" size=40 id="in" onkeyup="convert()" value="" />
|
||||
<p id="result"></p>
|
||||
|
||||
|
||||
|
||||
EOT;
|
||||
|
||||
return $o;
|
||||
}
|
|
@ -1 +1 @@
|
|||
2014-06-04.696
|
||||
2014-06-05.697
|
||||
|
|
Loading…
Reference in a new issue