v5

node_modules/wrap-ansi/index.js

@@ -0,0 +1,188 @@
+'use strict';
+const stringWidth = require('string-width');
+const stripAnsi = require('strip-ansi');
+const ansiStyles = require('ansi-styles');
+
+const ESCAPES = new Set([
+	'\u001B',
+	'\u009B'
+]);
+
+const END_CODE = 39;
+
+const wrapAnsi = code => `${ESCAPES.values().next().value}[${code}m`;
+
+// Calculate the length of words split on ' ', ignoring
+// the extra characters added by ansi escape codes
+const wordLengths = string => string.split(' ').map(character => stringWidth(character));
+
+// Wrap a long word across multiple rows
+// Ansi escape codes do not count towards length
+const wrapWord = (rows, word, columns) => {
+	const characters = [...word];
+
+	let insideEscape = false;
+	let visible = stringWidth(stripAnsi(rows[rows.length - 1]));
+
+	for (const [index, character] of characters.entries()) {
+		const characterLength = stringWidth(character);
+
+		if (visible + characterLength <= columns) {
+			rows[rows.length - 1] += character;
+		} else {
+			rows.push(character);
+			visible = 0;
+		}
+
+		if (ESCAPES.has(character)) {
+			insideEscape = true;
+		} else if (insideEscape && character === 'm') {
+			insideEscape = false;
+			continue;
+		}
+
+		if (insideEscape) {
+			continue;
+		}
+
+		visible += characterLength;
+
+		if (visible === columns && index < characters.length - 1) {
+			rows.push('');
+			visible = 0;
+		}
+	}
+
+	// It's possible that the last row we copy over is only
+	// ansi escape characters, handle this edge-case
+	if (!visible && rows[rows.length - 1].length > 0 && rows.length > 1) {
+		rows[rows.length - 2] += rows.pop();
+	}
+};
+
+// Trims spaces from a string ignoring invisible sequences
+const stringVisibleTrimSpacesRight = str => {
+	const words = str.split(' ');
+	let last = words.length;
+
+	while (last > 0) {
+		if (stringWidth(words[last - 1]) > 0) {
+			break;
+		}
+
+		last--;
+	}
+
+	if (last === words.length) {
+		return str;
+	}
+
+	return words.slice(0, last).join(' ') + words.slice(last).join('');
+};
+
+// The wrap-ansi module can be invoked
+// in either 'hard' or 'soft' wrap mode
+//
+// 'hard' will never allow a string to take up more
+// than columns characters
+//
+// 'soft' allows long words to expand past the column length
+const exec = (string, columns, options = {}) => {
+	if (options.trim !== false && string.trim() === '') {
+		return '';
+	}
+
+	let pre = '';
+	let ret = '';
+	let escapeCode;
+
+	const lengths = wordLengths(string);
+	let rows = [''];
+
+	for (const [index, word] of string.split(' ').entries()) {
+		if (options.trim !== false) {
+			rows[rows.length - 1] = rows[rows.length - 1].trimLeft();
+		}
+
+		let rowLength = stringWidth(rows[rows.length - 1]);
+
+		if (index !== 0) {
+			if (rowLength >= columns && (options.wordWrap === false || options.trim === false)) {
+				// If we start with a new word but the current row length equals the length of the columns, add a new row
+				rows.push('');
+				rowLength = 0;
+			}
+
+			if (rowLength > 0 || options.trim === false) {
+				rows[rows.length - 1] += ' ';
+				rowLength++;
+			}
+		}
+
+		// In 'hard' wrap mode, the length of a line is
+		// never allowed to extend past 'columns'
+		if (options.hard && lengths[index] > columns) {
+			const remainingColumns = (columns - rowLength);
+			const breaksStartingThisLine = 1 + Math.floor((lengths[index] - remainingColumns - 1) / columns);
+			const breaksStartingNextLine = Math.floor((lengths[index] - 1) / columns);
+			if (breaksStartingNextLine < breaksStartingThisLine) {
+				rows.push('');
+			}
+
+			wrapWord(rows, word, columns);
+			continue;
+		}
+
+		if (rowLength + lengths[index] > columns && rowLength > 0 && lengths[index] > 0) {
+			if (options.wordWrap === false && rowLength < columns) {
+				wrapWord(rows, word, columns);
+				continue;
+			}
+
+			rows.push('');
+		}
+
+		if (rowLength + lengths[index] > columns && options.wordWrap === false) {
+			wrapWord(rows, word, columns);
+			continue;
+		}
+
+		rows[rows.length - 1] += word;
+	}
+
+	if (options.trim !== false) {
+		rows = rows.map(stringVisibleTrimSpacesRight);
+	}
+
+	pre = rows.join('\n');
+
+	for (const [index, character] of [...pre].entries()) {
+		ret += character;
+
+		if (ESCAPES.has(character)) {
+			const code = parseFloat(/\d[^m]*/.exec(pre.slice(index, index + 4)));
+			escapeCode = code === END_CODE ? null : code;
+		}
+
+		const code = ansiStyles.codes.get(Number(escapeCode));
+
+		if (escapeCode && code) {
+			if (pre[index + 1] === '\n') {
+				ret += wrapAnsi(code);
+			} else if (character === '\n') {
+				ret += wrapAnsi(escapeCode);
+			}
+		}
+	}
+
+	return ret;
+};
+
+// For each newline, invoke the method separately
+module.exports = (string, columns, options) => {
+	return String(string)
+		.normalize()
+		.split('\n')
+		.map(line => exec(line, columns, options))
+		.join('\n');
+};