Innovenergy_trunk/frontend/node_modules/testcafe-hammerhead/lib/utils/buffer.js

49 lines
1.5 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.toReadableStream = exports.startsWith = exports.appendLine = exports.createLineIterator = exports.CRLF = void 0;
const stream_1 = require("stream");
const LF = 0x0A;
const CR = 0x0D;
const CRLF_LENGTH = 2;
exports.CRLF = Buffer.from([CR, LF]);
function createLineIterator(buffer) {
return {
[Symbol.iterator]: function* () {
const lastIdx = buffer.length - 1;
let start = 0;
for (let i = 0; i < buffer.length; i++) {
if (i === lastIdx)
yield buffer.slice(start);
else if (buffer[i] === CR && buffer[i + 1] === LF) {
yield buffer.slice(start, i);
start = i + CRLF_LENGTH;
}
}
},
};
}
exports.createLineIterator = createLineIterator;
function appendLine(lines, line) {
if (lines.length)
lines.push(exports.CRLF);
lines.push(line);
}
exports.appendLine = appendLine;
function startsWith(buffer, searchBuffer) {
if (buffer.length < searchBuffer.length)
return false;
for (let i = 0; i < searchBuffer.length; i++) {
if (buffer[i] !== searchBuffer[i])
return false;
}
return true;
}
exports.startsWith = startsWith;
function toReadableStream(buffer) {
const stream = new stream_1.Readable();
stream.push(buffer);
stream.push(null);
return stream;
}
exports.toReadableStream = toReadableStream;