string.js•1.14 kB
import {getStreamContents} from './contents.js';
import {identity, getContentsProp, throwObjectStream, getLengthProp} from './utils.js';
export async function getStreamAsString(stream, options) {
return getStreamContents(stream, stringMethods, options);
}
const initString = () => ({contents: '', textDecoder: new TextDecoder()});
const useTextDecoder = (chunk, {textDecoder}) => textDecoder.decode(chunk, {stream: true});
const addStringChunk = (convertedChunk, {contents}) => contents + convertedChunk;
const truncateStringChunk = (convertedChunk, chunkSize) => convertedChunk.slice(0, chunkSize);
const getFinalStringChunk = ({textDecoder}) => {
const finalChunk = textDecoder.decode();
return finalChunk === '' ? undefined : finalChunk;
};
const stringMethods = {
init: initString,
convertChunk: {
string: identity,
buffer: useTextDecoder,
arrayBuffer: useTextDecoder,
dataView: useTextDecoder,
typedArray: useTextDecoder,
others: throwObjectStream,
},
getSize: getLengthProp,
truncateChunk: truncateStringChunk,
addChunk: addStringChunk,
getFinalChunk: getFinalStringChunk,
finalize: getContentsProp,
};