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'Take bytes' and 'Drop bytes' operations now support ArrayBuffers

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This commit is contained in:
n1474335 2018-01-02 15:33:02 +00:00
parent 50b24d9a56
commit 90d9e087f7
2 changed files with 31 additions and 23 deletions
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10
src/core/config/OperationConfig.js
View file

@ -1913,9 +1913,9 @@ const OperationConfig = {
},
"Drop bytes": {
module: "Default",
description: "Cuts the specified number of bytes out of the data.",
inputType: "byteArray",
outputType: "byteArray",
description: "Cuts a slice of the specified number of bytes out of the data.",
inputType: "ArrayBuffer",
outputType: "ArrayBuffer",
args: [
{
name: "Start",
@ -1937,8 +1937,8 @@ const OperationConfig = {
"Take bytes": {
module: "Default",
description: "Takes a slice of the specified number of bytes from the data.",
inputType: "byteArray",
outputType: "byteArray",
inputType: "ArrayBuffer",
outputType: "ArrayBuffer",
args: [
{
name: "Start",

44
src/core/operations/Tidy.js
View file

@ -101,32 +101,39 @@ const Tidy = {
/**
* Drop bytes operation.
*
* @param {byteArray} input
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {byteArray}
* @returns {ArrayBuffer}
*/
runDropBytes: function(input, args) {
let start = args[0],
const start = args[0],
length = args[1],
applyToEachLine = args[2];
if (start < 0 || length < 0)
throw "Error: Invalid value";
if (!applyToEachLine)
return input.slice(0, start).concat(input.slice(start+length, input.length));
if (!applyToEachLine) {
const left = input.slice(0, start),
right = input.slice(start + length, input.byteLength);
let result = new Uint8Array(left.byteLength + right.byteLength);
result.set(new Uint8Array(left), 0);
result.set(new Uint8Array(right), left.byteLength);
return result.buffer;
}
// Split input into lines
const data = new Uint8Array(input);
let lines = [],
line = [],
i;
for (i = 0; i < input.length; i++) {
if (input[i] === 0x0a) {
for (i = 0; i < data.length; i++) {
if (data[i] === 0x0a) {
lines.push(line);
line = [];
} else {
line.push(input[i]);
line.push(data[i]);
}
}
lines.push(line);
@ -136,7 +143,7 @@ const Tidy = {
output = output.concat(lines[i].slice(0, start).concat(lines[i].slice(start+length, lines[i].length)));
output.push(0x0a);
}
return output.slice(0, output.length-1);
return new Uint8Array(output.slice(0, output.length-1)).buffer;
},
@ -154,12 +161,12 @@ const Tidy = {
/**
* Take bytes operation.
*
* @param {byteArray} input
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {byteArray}
* @returns {ArrayBuffer}
*/
runTakeBytes: function(input, args) {
let start = args[0],
const start = args[0],
length = args[1],
applyToEachLine = args[2];
@ -170,16 +177,17 @@ const Tidy = {
return input.slice(start, start+length);
// Split input into lines
const data = new Uint8Array(input);
let lines = [],
line = [];
let i;
line = [],
i;
for (i = 0; i < input.length; i++) {
if (input[i] === 0x0a) {
for (i = 0; i < data.length; i++) {
if (data[i] === 0x0a) {
lines.push(line);
line = [];
} else {
line.push(input[i]);
line.push(data[i]);
}
}
lines.push(line);
@ -189,7 +197,7 @@ const Tidy = {
output = output.concat(lines[i].slice(start, start+length));
output.push(0x0a);
}
return output.slice(0, output.length-1);
return new Uint8Array(output.slice(0, output.length-1)).buffer;
},