challenge-algorithms-v2.0-u.../node_modules/@jest/reporters/build/wrapAnsiString.js

70 lines
2.0 KiB
JavaScript

'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = wrapAnsiString;
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
// word-wrap a string that contains ANSI escape sequences.
// ANSI escape sequences do not add to the string length.
function wrapAnsiString(string, terminalWidth) {
if (terminalWidth === 0) {
// if the terminal width is zero, don't bother word-wrapping
return string;
}
const ANSI_REGEXP = /[\u001b\u009b]\[\d{1,2}m/gu;
const tokens = [];
let lastIndex = 0;
let match;
while ((match = ANSI_REGEXP.exec(string))) {
const ansi = match[0];
const index = match.index;
if (index != lastIndex) {
tokens.push(['string', string.slice(lastIndex, index)]);
}
tokens.push(['ansi', ansi]);
lastIndex = index + ansi.length;
}
if (lastIndex != string.length - 1) {
tokens.push(['string', string.slice(lastIndex, string.length)]);
}
let lastLineLength = 0;
return tokens
.reduce(
(lines, [kind, token]) => {
if (kind === 'string') {
if (lastLineLength + token.length > terminalWidth) {
while (token.length) {
const chunk = token.slice(0, terminalWidth - lastLineLength);
const remaining = token.slice(
terminalWidth - lastLineLength,
token.length
);
lines[lines.length - 1] += chunk;
lastLineLength += chunk.length;
token = remaining;
if (token.length) {
lines.push('');
lastLineLength = 0;
}
}
} else {
lines[lines.length - 1] += token;
lastLineLength += token.length;
}
} else {
lines[lines.length - 1] += token;
}
return lines;
},
['']
)
.join('\n');
}