Deleted legacy Rotate module

src/core/operations/legacy/Rotate.js

@@ -1,244 +0,0 @@
-/**
- * Bit rotation operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @namespace
- *
- * @todo Support for UTF16
- */
-const Rotate = {
-
-    /**
-     * @constant
-     * @default
-     */
-    ROTATE_AMOUNT: 1,
-    /**
-     * @constant
-     * @default
-     */
-    ROTATE_CARRY: false,
-
-    /**
-     * Runs rotation operations across the input data.
-     *
-     * @private
-     * @param {byteArray} data
-     * @param {number} amount
-     * @param {function} algo - The rotation operation to carry out
-     * @returns {byteArray}
-     */
-    _rot: function(data, amount, algo) {
-        const result = [];
-        for (let i = 0; i < data.length; i++) {
-            let b = data[i];
-            for (let j = 0; j < amount; j++) {
-                b = algo(b);
-            }
-            result.push(b);
-        }
-        return result;
-    },
-
-
-    /**
-     * Rotate right operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runRotr: function(input, args) {
-        if (args[1]) {
-            return Rotate._rotrCarry(input, args[0]);
-        } else {
-            return Rotate._rot(input, args[0], Rotate._rotr);
-        }
-    },
-
-
-    /**
-     * Rotate left operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runRotl: function(input, args) {
-        if (args[1]) {
-            return Rotate._rotlCarry(input, args[0]);
-        } else {
-            return Rotate._rot(input, args[0], Rotate._rotl);
-        }
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    ROT13_AMOUNT: 13,
-    /**
-     * @constant
-     * @default
-     */
-    ROT13_LOWERCASE: true,
-    /**
-     * @constant
-     * @default
-     */
-    ROT13_UPPERCASE: true,
-
-    /**
-     * ROT13 operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runRot13: function(input, args) {
-        let amount = args[2],
-            output = input,
-            chr,
-            rot13Lowercase = args[0],
-            rot13Upperacse = args[1];
-
-        if (amount) {
-            if (amount < 0) {
-                amount = 26 - (Math.abs(amount) % 26);
-            }
-
-            for (let i = 0; i < input.length; i++) {
-                chr = input[i];
-                if (rot13Upperacse && chr >= 65 && chr <= 90) { // Upper case
-                    chr = (chr - 65 + amount) % 26;
-                    output[i] = chr + 65;
-                } else if (rot13Lowercase && chr >= 97 && chr <= 122) { // Lower case
-                    chr = (chr - 97 + amount) % 26;
-                    output[i] = chr + 97;
-                }
-            }
-        }
-        return output;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    ROT47_AMOUNT: 47,
-
-    /**
-     * ROT47 operation.
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runRot47: function(input, args) {
-        let amount = args[0],
-            output = input,
-            chr;
-
-        if (amount) {
-            if (amount < 0) {
-                amount = 94 - (Math.abs(amount) % 94);
-            }
-
-            for (let i = 0; i < input.length; i++) {
-                chr = input[i];
-                if (chr >= 33 && chr <= 126) {
-                    chr = (chr - 33 + amount) % 94;
-                    output[i] = chr + 33;
-                }
-            }
-        }
-        return output;
-    },
-
-
-    /**
-     * Rotate right bitwise op.
-     *
-     * @private
-     * @param {byte} b
-     * @returns {byte}
-     */
-    _rotr: function(b) {
-        const bit = (b & 1) << 7;
-        return (b >> 1) | bit;
-    },
-
-
-    /**
-     * Rotate left bitwise op.
-     *
-     * @private
-     * @param {byte} b
-     * @returns {byte}
-     */
-    _rotl: function(b) {
-        const bit = (b >> 7) & 1;
-        return ((b << 1) | bit) & 0xFF;
-    },
-
-
-    /**
-     * Rotates a byte array to the right by a specific amount as a whole, so that bits are wrapped
-     * from the end of the array to the beginning.
-     *
-     * @private
-     * @param {byteArray} data
-     * @param {number} amount
-     * @returns {byteArray}
-     */
-    _rotrCarry: function(data, amount) {
-        let carryBits = 0,
-            newByte,
-            result = [];
-
-        amount = amount % 8;
-        for (let i = 0; i < data.length; i++) {
-            const oldByte = data[i] >>> 0;
-            newByte = (oldByte >> amount) | carryBits;
-            carryBits = (oldByte & (Math.pow(2, amount)-1)) << (8-amount);
-            result.push(newByte);
-        }
-        result[0] |= carryBits;
-        return result;
-    },
-
-
-    /**
-     * Rotates a byte array to the left by a specific amount as a whole, so that bits are wrapped
-     * from the beginning of the array to the end.
-     *
-     * @private
-     * @param {byteArray} data
-     * @param {number} amount
-     * @returns {byteArray}
-     */
-    _rotlCarry: function(data, amount) {
-        let carryBits = 0,
-            newByte,
-            result = [];
-
-        amount = amount % 8;
-        for (let i = data.length-1; i >= 0; i--) {
-            const oldByte = data[i];
-            newByte = ((oldByte << amount) | carryBits) & 0xFF;
-            carryBits = (oldByte >> (8-amount)) & (Math.pow(2, amount)-1);
-            result[i] = (newByte);
-        }
-        result[data.length-1] = result[data.length-1] | carryBits;
-        return result;
-    },
-
-};
-
-export default Rotate;