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David Kale
238
node_modules/wrap-ansi/index.js
generated
vendored
238
node_modules/wrap-ansi/index.js
generated
vendored
@@ -1,68 +1,42 @@
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'use strict';
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var stringWidth = require('string-width');
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var stripAnsi = require('strip-ansi');
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const stringWidth = require('string-width');
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const stripAnsi = require('strip-ansi');
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const ansiStyles = require('ansi-styles');
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var ESCAPES = [
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'\u001b',
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'\u009b'
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];
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const ESCAPES = new Set([
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'\u001B',
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'\u009B'
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]);
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var END_CODE = 39;
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const END_CODE = 39;
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var ESCAPE_CODES = {
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0: 0,
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1: 22,
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2: 22,
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3: 23,
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4: 24,
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7: 27,
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8: 28,
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9: 29,
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30: 39,
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31: 39,
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32: 39,
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33: 39,
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34: 39,
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35: 39,
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36: 39,
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37: 39,
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90: 39,
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40: 49,
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41: 49,
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42: 49,
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43: 49,
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44: 49,
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45: 49,
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46: 49,
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47: 49
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};
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const wrapAnsi = code => `${ESCAPES.values().next().value}[${code}m`;
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function wrapAnsi(code) {
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return ESCAPES[0] + '[' + code + 'm';
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}
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// Calculate the length of words split on ' ', ignoring
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// the extra characters added by ansi escape codes
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const wordLengths = string => string.split(' ').map(character => stringWidth(character));
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// calculate the length of words split on ' ', ignoring
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// the extra characters added by ansi escape codes.
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function wordLengths(str) {
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return str.split(' ').map(function (s) {
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return stringWidth(s);
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});
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}
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// Wrap a long word across multiple rows
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// Ansi escape codes do not count towards length
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const wrapWord = (rows, word, columns) => {
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const characters = [...word];
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// wrap a long word across multiple rows.
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// ansi escape codes do not count towards length.
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function wrapWord(rows, word, cols) {
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var insideEscape = false;
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var visible = stripAnsi(rows[rows.length - 1]).length;
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let insideEscape = false;
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let visible = stringWidth(stripAnsi(rows[rows.length - 1]));
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for (var i = 0; i < word.length; i++) {
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var x = word[i];
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for (const [index, character] of characters.entries()) {
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const characterLength = stringWidth(character);
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rows[rows.length - 1] += x;
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if (visible + characterLength <= columns) {
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rows[rows.length - 1] += character;
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} else {
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rows.push(character);
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visible = 0;
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}
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if (ESCAPES.indexOf(x) !== -1) {
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if (ESCAPES.has(character)) {
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insideEscape = true;
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} else if (insideEscape && x === 'm') {
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} else if (insideEscape && character === 'm') {
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insideEscape = false;
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continue;
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}
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@@ -71,98 +45,144 @@ function wrapWord(rows, word, cols) {
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continue;
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}
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visible++;
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visible += characterLength;
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if (visible >= cols && i < word.length - 1) {
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if (visible === columns && index < characters.length - 1) {
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rows.push('');
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visible = 0;
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}
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}
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// it's possible that the last row we copy over is only
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// ansi escape characters, handle this edge-case.
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// It's possible that the last row we copy over is only
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// ansi escape characters, handle this edge-case
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if (!visible && rows[rows.length - 1].length > 0 && rows.length > 1) {
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rows[rows.length - 2] += rows.pop();
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}
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}
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};
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// the wrap-ansi module can be invoked
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// in either 'hard' or 'soft' wrap mode.
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//
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// 'hard' will never allow a string to take up more
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// than cols characters.
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//
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// 'soft' allows long words to expand past the column length.
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function exec(str, cols, opts) {
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var options = opts || {};
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// Trims spaces from a string ignoring invisible sequences
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const stringVisibleTrimSpacesRight = str => {
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const words = str.split(' ');
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let last = words.length;
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var pre = '';
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var ret = '';
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var escapeCode;
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var lengths = wordLengths(str);
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var words = str.split(' ');
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var rows = [''];
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for (var i = 0, word; (word = words[i]) !== undefined; i++) {
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var rowLength = stringWidth(rows[rows.length - 1]);
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if (rowLength) {
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rows[rows.length - 1] += ' ';
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rowLength++;
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while (last > 0) {
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if (stringWidth(words[last - 1]) > 0) {
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break;
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}
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// in 'hard' wrap mode, the length of a line is
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// never allowed to extend past 'cols'.
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if (lengths[i] > cols && options.hard) {
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if (rowLength) {
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last--;
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}
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if (last === words.length) {
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return str;
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}
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return words.slice(0, last).join(' ') + words.slice(last).join('');
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};
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// The wrap-ansi module can be invoked
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// in either 'hard' or 'soft' wrap mode
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//
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// 'hard' will never allow a string to take up more
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// than columns characters
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//
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// 'soft' allows long words to expand past the column length
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const exec = (string, columns, options = {}) => {
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if (options.trim !== false && string.trim() === '') {
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return '';
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}
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let pre = '';
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let ret = '';
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let escapeCode;
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const lengths = wordLengths(string);
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let rows = [''];
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for (const [index, word] of string.split(' ').entries()) {
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if (options.trim !== false) {
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rows[rows.length - 1] = rows[rows.length - 1].trimLeft();
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}
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let rowLength = stringWidth(rows[rows.length - 1]);
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if (index !== 0) {
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if (rowLength >= columns && (options.wordWrap === false || options.trim === false)) {
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// If we start with a new word but the current row length equals the length of the columns, add a new row
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rows.push('');
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rowLength = 0;
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}
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if (rowLength > 0 || options.trim === false) {
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rows[rows.length - 1] += ' ';
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rowLength++;
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}
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}
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// In 'hard' wrap mode, the length of a line is
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// never allowed to extend past 'columns'
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if (options.hard && lengths[index] > columns) {
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const remainingColumns = (columns - rowLength);
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const breaksStartingThisLine = 1 + Math.floor((lengths[index] - remainingColumns - 1) / columns);
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const breaksStartingNextLine = Math.floor((lengths[index] - 1) / columns);
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if (breaksStartingNextLine < breaksStartingThisLine) {
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rows.push('');
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}
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wrapWord(rows, word, cols);
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wrapWord(rows, word, columns);
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continue;
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}
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if (rowLength + lengths[i] > cols && rowLength > 0) {
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if (options.wordWrap === false && rowLength < cols) {
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wrapWord(rows, word, cols);
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if (rowLength + lengths[index] > columns && rowLength > 0 && lengths[index] > 0) {
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if (options.wordWrap === false && rowLength < columns) {
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wrapWord(rows, word, columns);
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continue;
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}
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rows.push('');
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}
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if (rowLength + lengths[index] > columns && options.wordWrap === false) {
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wrapWord(rows, word, columns);
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continue;
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}
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rows[rows.length - 1] += word;
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}
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pre = rows.map(function (r) {
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return r.trim();
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}).join('\n');
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if (options.trim !== false) {
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rows = rows.map(stringVisibleTrimSpacesRight);
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}
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for (var j = 0; j < pre.length; j++) {
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var y = pre[j];
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pre = rows.join('\n');
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ret += y;
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for (const [index, character] of [...pre].entries()) {
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ret += character;
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if (ESCAPES.indexOf(y) !== -1) {
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var code = parseFloat(/[0-9][^m]*/.exec(pre.slice(j, j + 4)));
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if (ESCAPES.has(character)) {
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const code = parseFloat(/\d[^m]*/.exec(pre.slice(index, index + 4)));
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escapeCode = code === END_CODE ? null : code;
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}
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if (escapeCode && ESCAPE_CODES[escapeCode]) {
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if (pre[j + 1] === '\n') {
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ret += wrapAnsi(ESCAPE_CODES[escapeCode]);
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} else if (y === '\n') {
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const code = ansiStyles.codes.get(Number(escapeCode));
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if (escapeCode && code) {
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if (pre[index + 1] === '\n') {
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ret += wrapAnsi(code);
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} else if (character === '\n') {
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ret += wrapAnsi(escapeCode);
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}
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}
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}
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return ret;
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}
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// for each line break, invoke the method separately.
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module.exports = function (str, cols, opts) {
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return String(str).split('\n').map(function (substr) {
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return exec(substr, cols, opts);
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}).join('\n');
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};
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// For each newline, invoke the method separately
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module.exports = (string, columns, options) => {
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return String(string)
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.normalize()
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.split('\n')
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.map(line => exec(line, columns, options))
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.join('\n');
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};
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