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Fix ROT13 false behavior

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ROT13 will produce false result when rotating numbers with negative amount.
This commit is contained in:
ItisCaleb 2024-05-29 18:43:03 +08:00
parent 18159ce806
commit 0da130597f
1 changed files with 3 additions and 1 deletions
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4
src/core/operations/ROT13.mjs
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@ -59,11 +59,13 @@ class ROT13 extends Operation {
rot13Upperacse = args[1],
rotNumbers = args[2];
let amount = args[3],
numAmount = amount,
chr;
if (amount) {
if (amount < 0) {
amount = 26 - (Math.abs(amount) % 26);
numAmount = 10 - (Math.abs(numAmount) % 10);
}
for (let i = 0; i < input.length; i++) {
@ -75,7 +77,7 @@ class ROT13 extends Operation {
chr = (chr - 97 + amount) % 26;
output[i] = chr + 97;
} else if (rotNumbers && chr >= 48 && chr <= 57) { // Numbers
chr = (chr - 48 + amount) % 10;
chr = (chr - 48 + numAmount) % 10;
output[i] = chr + 48;
}
}